HORTON D R INC /DE/
S-4/A, 1998-03-09
OPERATIVE BUILDERS
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<PAGE>
 
     
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 9, 1998     
                                           REGISTRATION STATEMENT NO. 333-44279
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                               ---------------
                                
                             AMENDMENT NO. 2     
                                      TO
                                   FORM S-4
                            REGISTRATION STATEMENT
                       UNDER THE SECURITIES ACT OF 1933
                               ---------------
                               D.R. HORTON, INC.
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
       
       DELAWARE                      1531                    75-2386963
 (STATE OR OTHER          (PRIMARY STANDARD INDUSTRIAL      (I.R.S. EMPLOYER
  JURISDICTION             CLASSIFICATION CODE NUMBER)    IDENTIFICATION NUMBER)
  OF INCORPORATION OR 
  ORGANIZATION)

                       1901 ASCENSION BLVD., SUITE 100 
                            ARLINGTON, TEXAS 76006 
                                (817) 856-8200
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                           CHARLES N. WARREN, ESQ. 
                            SENIOR VICE PRESIDENT 
                             AND GENERAL COUNSEL 
                              D.R. HORTON, INC. 
                       1901 ASCENSION BLVD., SUITE 100 
                            ARLINGTON, TEXAS 76006 
                                (817) 856-8200
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)

                          COPIES OF COMMUNICATION TO:

    IRWIN F. SENTILLES, III, ESQ.              TIMOTHY C. WESTFALL, ESQ. 
  GIBSON, DUNN & CRUTCHER LLP 1717        VICE PRESIDENT AND GENERAL COUNSEL
    MAIN STREET, SUITE 5400                 CONTINENTAL HOMES HOLDING CORP. 
      DALLAS, TEXAS 75201                     7001 NORTH SCOTTSDALE ROAD 
         (214) 698-3100                              SUITE 2050 
                                              SCOTTSDALE, ARIZONA 85253 
                                                    (602) 483-0006
                               ---------------
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement and the
effective time of the merger (the "Merger") of Continental Homes Holding
Corp., a Delaware corporation ("Continental"), with and into D.R. Horton,
Inc., a Delaware corporation ("Horton"), as described in the Agreement and
Plan of Merger, dated as of December 18, 1997 (the "Merger Agreement"),
between Horton and Continental attached as Appendix A to the Proxy
Statement/Prospectus forming part of this Registration Statement.
 
  If the securities being registered on this Form are to be offered in
connection with the formation of a holding company and there is compliance
with General Instruction G, check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
                               ---------------
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                                PROPOSED
                                                 PROPOSED        MAXIMUM
                                                 MAXIMUM        AGGREGATE     AMOUNT OF
     TITLE OF EACH CLASS        AMOUNT TO BE  OFFERING PRICE    OFFERING     REGISTRATION
OF SECURITIES TO BE REGISTERED  REGISTERED(1)   PER SHARE       PRICE(2)        FEE(2)
- -----------------------------------------------------------------------------------------
<S>                             <C>           <C>            <C>             <C>
  Common Stock, par value
   $.01 per share.........       29,396,069         NA       $429,806,967.40 $126,793.06
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
   
(1) The amount of Common Stock, $.01 par value, of Horton (the "Horton Common
    Stock") to be registered hereunder has been determined on the basis of the
    product of (A) 2.759 (the highest Exchange Ratio to which Horton is
    potentially obligated under the Merger Agreement) and (B) the sum of (i)
    6,866,422 (the approximate number of outstanding shares of Common Stock,
    $.01 par value, of Continental (the "Continental Common Stock"), and (ii)
    160,000, the approximate number of outstanding and exercisable options to
    purchase shares of Continental Common Stock, and (iii) 3,628,188, the
    number shares of Continental Common Stock issuable upon conversion of
    Continental's outstanding 6 7/8% Convertible Subordinated Notes due 2002
    (the "Continental Convertible Notes").     
(2) Estimated pursuant to Rule 457(f)(1) of the Securities Act of 1933, as
    amended (the "Securities Act"), by multiplying (i) $40.34, the average of
    the high and low sales price of a share of Continental Common Stock quoted
    for New York Stock Exchange Composite Transactions on January 12, 1998,
    and (ii) 10,654,610, the approximate number of outstanding shares of
    Continental Common Stock (assuming the exercise of all exercisable options
    to purchase shares of Continental Common Stock and the conversion of all
    of the Continental Convertible Notes).
                               ---------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                               D.R. HORTON, INC.
 
                           1901 ASCENSION BOULEVARD
                                   SUITE 100
                            ARLINGTON, TEXAS 76006
                                                               
                                                            March 13, 1998     
 
Dear Stockholder:
   
  You are cordially invited to attend a Special Meeting of Stockholders (the
"Horton Stockholders Meeting") of D.R. Horton, Inc., a Delaware corporation
("Horton"), to be held on April 10, 1998 in the principal executive offices of
Horton, 1901 Ascension Boulevard, Suite 100, Arlington, Texas 76006, starting
at 10:00 a.m. (local time).     
 
  At the Horton Stockholders Meeting, you will be asked to adopt and approve
an Agreement and Plan of Merger, dated as of December 18, 1997 (the "Merger
Agreement"), between Horton and Continental Homes Holding Corp., a Delaware
corporation ("Continental"), providing for the merger (the "Merger") of
Continental with and into Horton, with Horton as the surviving corporation.
 
  In the Merger, each outstanding share of common stock, par value $.01 per
share, of Continental ("Continental Common Stock") will be converted into the
right to receive shares of Common Stock, par value $.01 per share, of Horton
("Horton Common Stock") in accordance with a floating exchange ratio (the
"Exchange Ratio") determined on the basis of the average of the closing prices
of Horton Common Stock as reported for New York Stock Exchange Composite
Transactions for 15 randomly selected trading days within the 30 consecutive
trading days (the "Calculation Period") ending on the date that is five
trading days prior to the closing date for the Merger (the "Stock Value"). The
Merger Agreement provides that the stockholders of Continental will receive
for each share of Continental Common Stock between 2.25 and 2.759 shares of
Horton Common Stock, depending on the Stock Value. However, if the Stock Value
is less than $12.69, Continental may terminate the Merger Agreement unless
Horton elects to have the Exchange Ratio equal the quotient obtained by
dividing $35.00 by the Stock Value. The enclosed Joint Proxy
Statement/Prospectus describes the Exchange Ratio in more detail and includes
a table illustrating the Exchange Ratios that may result from various assumed
Stock Values. See "SUMMARY--The Merger Agreement--Illustrative Exchange Ratios
and Amount of Merger Consideration at Assumed Stock Values."
   
  Assuming the Merger had been consummated on March 6, 1998 and the Stock
Value were based on the average of the closing prices of the Horton Common
Stock for the trading days within the anticipated Calculation Period prior to
such date, the Exchange Ratio would have been 2.25 shares of Horton Common
Stock for each share of Continental Common Stock. At such Exchange Ratio, and
assuming no exercise or conversion of Continental or Horton options or
convertible securities prior to the Merger, the former stockholders of
Continental would have received in the aggregate approximately 29% of the
shares of Horton Common Stock outstanding immediately after the Merger. If all
of Continental's convertible securities were converted immediately prior to
the Merger, the former stockholders of Continental (including such former
securityholders) would have received in the aggregate approximately 39% of the
shares of Horton Common Stock outstanding immediately after the Merger.     
 
  A detailed description of the Merger Agreement and the proposed Merger is
set forth in the enclosed Joint Proxy Statement/Prospectus. Please give this
information your careful attention. A Notice of Special Meeting of
Stockholders is also enclosed herewith. Holders of record of shares of Horton
Common Stock at the close of business on February 23, 1998, the record date
for the Horton Stockholders Meeting, are entitled to notice of, and to vote
at, the Horton Stockholders Meeting and at any adjournments or postponements
thereof.
<PAGE>
 
   
  The Board of Directors believes that this Merger offers significant
strategic benefits for Horton and its stockholders. This Merger is consistent
with Horton's strategy of pursuing acquisitions of homebuilders that Horton
believes have strong positions in important markets, records of growth and
profitability and strong management teams. This Merger is expected to provide
the benefits associated with the creation of one of the largest homebuilders.
This Merger is also expected to provide increased market capitalization,
liquidity and financial strength for the combined company. In addition, this
Merger provides a good cultural and operational fit with the Continental
management team.     
 
  THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT AND
UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE TO APPROVE THE MERGER AGREEMENT.
 
  IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE HORTON STOCKHOLDERS
MEETING, WHETHER OR NOT YOU PLAN TO ATTEND. AN ABSTENTION WILL HAVE THE SAME
EFFECT AS A VOTE AGAINST THE MERGER AGREEMENT AND CONSEQUENTLY AGAINST THE
MERGER. ACCORDINGLY, YOU ARE REQUESTED TO COMPLETE, DATE AND SIGN THE ENCLOSED
PROXY CARD AND RETURN IT IN THE ENCLOSED ENVELOPE, WHICH REQUIRES NO POSTAGE
IF MAILED IN THE UNITED STATES. IF YOU ATTEND THE HORTON STOCKHOLDERS MEETING,
YOU MAY REVOKE YOUR PROXY AT ANY TIME BEFORE IT IS VOTED AND VOTE IN PERSON IF
YOU WISH, EVEN IF YOU HAVE PREVIOUSLY RETURNED YOUR PROXY CARD.
 
  I strongly support the Merger and join with the other members of the Board
in enthusiastically recommending the Merger to you. We urge you to vote to
approve the Merger Agreement. If you have any questions about the Merger or
need assistance in completing your proxy card, please contact Paul W.
Buchschacher at 817/856-8200.
 
                                          Very truly yours,
 
                                          Donald R. Horton
                                          Chairman of the Board and President
<PAGE>
 
                               D.R. HORTON, INC.
 
                           1901 ASCENSION BOULEVARD
                                   SUITE 100
                            ARLINGTON, TEXAS 76006
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                          
                       TO BE HELD ON APRIL 10, 1998     
   
  A Special Meeting of Stockholders (the "Horton Stockholders Meeting") of
D.R. Horton, Inc., a Delaware corporation ("Horton"), will be held starting at
10:00 a.m., local time, on April 10, 1998, at the principal executive offices
of Horton, 1901 Ascension Boulevard, Suite 100, Arlington, TX 76006.
Attendance at the Horton Stockholders Meeting and any adjournments or
postponements thereof will be limited to stockholders of record on February
23, 1998 (the "Record Date") or their proxies, beneficial owners having
evidence of ownership on the Record Date and invited guests of Horton.     
   
  The purpose of the Horton Stockholders Meeting is to consider and vote upon
a proposal (the "Proposal") to adopt and approve an Agreement and Plan of
Merger, dated as of December 18, 1997 (the "Merger Agreement"), between Horton
and Continental Homes Holding Corp., a Delaware corporation ("Continental").
The Merger Agreement contemplates, among other things, that (a) Continental
will be merged with and into Horton, with Horton as the surviving corporation,
and (b) all outstanding shares of common stock, par value $.01 per share, of
Continental will be converted into the right to receive shares of common
stock, par value $.01 per share, of Horton ("Horton Common Stock") in
accordance with a floating exchange ratio determined on the basis of the
average of the closing prices of the Horton Common Stock as reported for New
York Stock Exchange Composite Transactions for 15 randomly selected trading
days within the 30 consecutive trading days ending on the date that is five
trading days prior to the closing date for the Merger. The Merger Agreement
also provides for the assumption by Horton of Continental's outstanding stock
options and convertible notes and the issuance of shares of Horton Common
Stock upon the exercise or conversion thereof. See "THE MERGER AGREEMENT--
Merger Consideration," "THE MERGER AGREEMENT--Certain Covenants--Continental
Stock Options" and "THE MERGER--Continental Debt" in the accompanying Joint
Proxy Statement/Prospectus. A copy of the Merger Agreement is attached as
Appendix A to the accompanying Joint Proxy Statement/Prospectus.     
 
  Holders of record of shares of Horton Common Stock at the close of business
on the Record Date are entitled to notice of, and to vote at, the Horton
Stockholders Meeting and at any adjournments or postponements thereof. The
affirmative vote of the holders of a majority of the outstanding shares of
Horton Common Stock is required to approve the Proposal. A list of holders of
record of shares of Horton Common Stock at the close of business on the Record
Date will be available for inspection at Horton's principal executive offices
during ordinary business hours for the ten-day period prior to the Horton
Stockholders Meeting. Horton's transfer books will not be closed.
 
  THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE "FOR"
ADOPTION AND APPROVAL OF THE PROPOSAL.
 
                                          By Order of the Board of Directors
 
                                          Charles N. Warren
                                          Senior Vice President, General
                                           Counsel and Assistant Secretary
   
March 13, 1998     
Arlington, Texas
<PAGE>
 
  WHETHER OR NOT YOU PLAN TO ATTEND THE HORTON STOCKHOLDERS MEETING IN PERSON,
YOU ARE REQUESTED TO COMPLETE, DATE AND SIGN THE ENCLOSED PROXY CARD AND
RETURN IT IN THE ENCLOSED ENVELOPE, WHICH REQUIRES NO POSTAGE IF MAILED IN THE
UNITED STATES. IF YOU ATTEND THE HORTON STOCKHOLDERS MEETING, YOU MAY REVOKE
YOUR PROXY AT ANY TIME BEFORE IT IS VOTED AND VOTE IN PERSON IF YOU WISH, EVEN
IF YOU HAVE PREVIOUSLY RETURNED YOUR PROXY CARD.
<PAGE>
 
                        CONTINENTAL HOMES HOLDING CORP.
 
                            7001 N. SCOTTSDALE ROAD
                                  SUITE 2050
                           SCOTTSDALE, ARIZONA 85253
                                                               
                                                            March 13, 1998     
 
To our Stockholders:
   
  You are cordially invited to attend a Special Meeting of Stockholders (the
"Continental Stockholders Meeting") of Continental Homes Holding Corp., a
Delaware corporation ("Continental"), to be held on April 10, 1998 at
Continental's executive offices located at 7001 N. Scottsdale Road, Suite
2050, Scottsdale, Arizona 85253, starting at 9:00 a.m. (Phoenix time).     
 
  At the Continental Stockholder's Meeting, you will be asked to adopt and
approve an Agreement and Plan of Merger, dated as of December 18, 1997 (the
"Merger Agreement"), between D.R. Horton, Inc., a Delaware corporation
("Horton"), and Continental, providing for the merger (the "Merger") of
Continental with and into Horton, with Horton as the surviving corporation.
 
  The Merger Agreement provides that each outstanding share of common stock,
par value $.01 per share, of Continental ("Continental Common Stock") will be
converted into the right to receive shares of common stock, par value $.01 per
share, of Horton ("Horton Common Stock") in accordance with a floating
exchange ratio (the "Exchange Ratio") determined on the basis of the average
of the closing prices of Horton Common Stock as reported for New York Stock
Exchange Composite Transactions for 15 randomly selected trading days within
the 30 consecutive trading days (the "Calculation Period") ending on the date
that is five trading days prior to the closing date for the Merger (the "Stock
Value"). In the Merger, the stockholders of Continental will receive for each
share of Continental Common Stock between 2.25 and 2.759 shares of Horton
Common Stock, depending on the Stock Value. However, if the Stock Value is
less than $12.69, Continental may terminate the Merger Agreement unless Horton
elects to have the Exchange Ratio equal the quotient obtained by dividing
$35.00 by the Stock Value. The enclosed Joint Proxy Statement/Prospectus
describes the Exchange Ratio in more detail and includes a table illustrating
the Exchange Ratios that may result from various assumed Stock Values. See
"SUMMARY--The Merger Agreement--Illustrative Exchange Ratios and Amount of
Merger Consideration at Assumed Stock Values."
   
  Assuming the Merger had been consummated on March 6, 1998 and the Stock
Value were based on the average of the closing prices of the Horton Common
Stock for the trading days within the anticipated Calculation Period prior to
such date, the Exchange Ratio would have been 2.25 shares of Horton Common
Stock for each share of Continental Common Stock. At such Exchange Ratio, and
assuming no exercise or conversion of Continental or Horton options or
convertible securities prior to the Merger, the former stockholders of
Continental would have received in the aggregate approximately 29% of the
shares of Horton Common Stock outstanding immediately after the Merger. If all
of Continental's convertible securities were converted immediately prior to
the Merger, the former stockholders of Continental (including such former
securityholders) would have received in the aggregate approximately 39% of the
shares of Horton Common Stock outstanding immediately after the Merger.     
 
  A detailed description of the Merger Agreement and the proposed Merger is
set forth in the enclosed Joint Proxy Statement/Prospectus. Please give this
information your careful attention. A Notice of Special Meeting of
Stockholders is also enclosed herewith. Only holders of shares of Continental
Common Stock of record at the close of business on February 23, 1998, the
record date for the Continental Stockholders Meeting, will be entitled to
notice of, and to vote at, the Continental Stockholders Meeting and at any
adjournments or postponements thereof.
<PAGE>
 
   
  The Board of Directors is very excited by the opportunity to create one of
the largest and, more importantly, one of the most profitable homebuilding
operations in the United States. This Merger combines Continental's strong
operational capability with Horton's acquisition and other operational
expertise. The combination of Continental and Horton will greatly diversify
Continental's markets. The combined company will operate in 21 states and 36
markets. We are combining two companies which independently have among the
highest growth rates, margins and returns on equity in the industry. As such,
our combined competitiveness should be further enhanced. This Merger should
result in an improved capital structure and a lower cost of capital.     
 
  THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT AND
UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE TO APPROVE THE MERGER AGREEMENT.
 
  IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE CONTINENTAL
STOCKHOLDERS MEETING, WHETHER OR NOT YOU PLAN TO ATTEND. AN ABSTENTION WILL
HAVE THE SAME EFFECT AS A VOTE AGAINST THE MERGER AGREEMENT AND CONSEQUENTLY
AGAINST THE MERGER. ACCORDINGLY, YOU ARE REQUESTED TO COMPLETE, DATE AND SIGN
THE ENCLOSED PROXY CARD AND RETURN IT IN THE ENCLOSED ENVELOPE, WHICH REQUIRES
NO POSTAGE IF MAILED IN THE UNITED STATES. IF YOU ATTEND THE CONTINENTAL
STOCKHOLDERS MEETING, YOU MAY REVOKE YOUR PROXY AT ANY TIME BEFORE IT IS VOTED
AND VOTE IN PERSON IF YOU WISH, EVEN IF YOU HAVE PREVIOUSLY RETURNED YOUR
PROXY CARD.
 
  I strongly support the Merger and join with the other members of the Board
in enthusiastically recommending the Merger to you. We urge you to vote to
approve the Merger Agreement. If you have any questions about the Merger or
need assistance in completing your proxy card, please contact Julie E. Collins
at 602/483-0006.
 
                                          Very truly yours,
 
                                          Bradley S. Anderson
                                          Interim Chairman of the Board
<PAGE>
 
                        CONTINENTAL HOMES HOLDING CORP.
 
                            7001 N. SCOTTSDALE ROAD
                                  SUITE 2050
                           SCOTTSDALE, ARIZONA 85253
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                          
                       TO BE HELD ON APRIL 10, 1998     
 
To our Stockholders:
   
  A Special Meeting of Stockholders (the "Continental Stockholders Meeting")
of Continental Homes Holding Corp., a Delaware corporation ("Continental"),
will be held starting at 9:00 a.m., Phoenix time, on April 10, 1998, at
Continental's executive offices located at 7001 N. Scottsdale Road, Suite
2050, Scottsdale, Arizona 85253. Attendance at the Continental Stockholders
Meeting and any adjournments or postponements thereof will be limited to
stockholders of record on February 23, 1998 (the "Record Date") or their
proxies, beneficial owners having evidence of ownership on the Record Date and
invited guests of Continental.     
   
  The purpose of the Continental Stockholders Meeting is to consider and vote
upon a proposal (the "Proposal") to adopt and approve an Agreement and Plan of
Merger, dated as of December 18, 1997 (the "Merger Agreement"), between D.R.
Horton, Inc., a Delaware corporation ("Horton"), and Continental. The Merger
Agreement contemplates, among other things, that (a) Continental will be
merged with and into Horton, with Horton as the surviving corporation, and (b)
all outstanding shares of Common Stock, par value $.01 per share, of
Continental will be converted into the right to receive shares of Common
Stock, par value $.01 per share, of Horton ("Horton Common Stock") in
accordance with a floating exchange ratio determined on the basis of the
average of the closing prices of the Horton Common Stock as reported for New
York Stock Exchange Composite Transactions for 15 randomly selected trading
days within the 30 consecutive trading days ending on the date that is five
trading days prior to the closing date for the Merger. The Merger Agreement
also provides for the assumption by Horton of Continental's outstanding stock
options and convertible notes and the issuance of shares of Horton Common
Stock upon the exercise or conversion thereof. See "THE MERGER AGREEMENT--
Merger Consideration," "THE MERGER AGREEMENT--Certain Covenants--Continental
Stock Options" and "THE MERGER--Continental Debt" in the accompanying Joint
Proxy Statement/Prospectus. A copy of the Merger Agreement is attached as
Appendix A to the accompanying Joint Proxy Statement/Prospectus.     
 
  Only holders of shares of Continental Common Stock of record at the close of
business on the Record Date will be entitled to notice of, and to vote at, the
Continental Stockholders Meeting and at any adjournments or postponements
thereof. The affirmative vote of the holders of a majority of the outstanding
shares of Continental Common Stock is required to approve the Proposal. A list
of holders of record of shares of Continental Common Stock at the close of
business on the Record Date will be available for inspection at Continental's
principal executive offices during ordinary business hours for the ten-day
period prior to the Continental Stockholders Meeting. Continental's transfer
books will not be closed.
 
  THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS VOTE "FOR"
ADOPTION AND APPROVAL OF THE PROPOSAL.
 
                                          By Order of the Board of Directors
 
                                          Julie E. Collins
                                          Secretary
   
March 13, 1998     
Phoenix, Arizona
<PAGE>
 
  WHETHER OR NOT YOU PLAN TO ATTEND THE CONTINENTAL STOCKHOLDERS MEETING IN
PERSON, PLEASE COMPLETE, DATE AND SIGN THE ENCLOSED PROXY CARD AND MAIL IT
PROMPTLY IN THE ENCLOSED POSTAGE-PAID ADDRESSED ENVELOPE. IF YOU ATTEND THE
CONTINENTAL STOCKHOLDERS MEETING, YOU MAY REVOKE YOUR PROXY AT ANY TIME BEFORE
IT IS VOTED AND VOTE IN PERSON IF YOU WISH, EVEN IF YOU HAVE PREVIOUSLY
RETURNED YOUR PROXY CARD.
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY STATE.                                                                    +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                   
                SUBJECT TO COMPLETION, DATED MARCH 9, 1998     
 
                               D.R. HORTON, INC.
 
                                      AND
 
                        CONTINENTAL HOMES HOLDING CORP.
    
                  JOINT PROXY STATEMENT FOR THEIR RESPECTIVE 
                SPECIAL MEETINGS OF STOCKHOLDERS TO BE HELD ON 
                              APRIL 10, 1998     
 
                                  ----------
                               D.R. HORTON, INC.
                                   PROSPECTUS
                                  ----------
   
  This Joint Proxy Statement/Prospectus is being furnished to stockholders of
D.R. Horton, Inc., a Delaware corporation ("Horton"), and to stockholders of
Continental Homes Holding Corp., a Delaware corporation ("Continental"), in
connection with the solicitation by their respective Boards of Directors of
proxies for use at their special meetings of stockholders (the "Horton
Stockholders Meeting" and the "Continental Stockholders Meeting," respectively,
and together, the "Special Meetings") and any adjournments or postponements
thereof. The Horton Stockholders Meeting will be held on April 10, 1998 at
10:00 a.m., Central Time, and the Continental Stockholders Meeting will be held
on April 10, 1998 at 9:00 a.m., Phoenix Time. This Joint Proxy
Statement/Prospectus is first being mailed to stockholders of Horton and
stockholders of Continental on or about March 13, 1998.     
 
  At the Special Meetings, stockholders of Horton and Continental will vote
upon proposals (the "Horton Proposal" and the "Continental Proposal,"
respectively) to adopt and approve the Agreement and Plan of Merger, dated as
of December 18, 1997 (the "Merger Agreement"), pursuant to which Continental
will merge with and into Horton (the "Merger"), with Horton as the surviving
corporation in the Merger.
   
  In the Merger, each outstanding share of common stock, par value $.01 per
share, of Continental ("Continental Common Stock") will be converted into the
right to receive shares of common stock, par value $.01 per share, of Horton
("Horton Common Stock") in accordance with a floating exchange ratio (the
"Exchange Ratio") determined on the basis of the average of the closing prices
of Horton Common Stock as reported for New York Stock Exchange Composite
Transactions for 15 randomly selected trading days within the 30 consecutive
trading days (the "Calculation Period") ending on the date that is five trading
days prior to the closing date for the Merger (the "Stock Value"). The Merger
Agreement provides that the stockholders of Continental will receive for each
share of Continental Common Stock between 2.25 and 2.759 shares of Horton
Common Stock, depending on the Stock Value. However, if the Stock Value is less
than $12.69, Continental may terminate the Merger Agreement unless Horton
elects to have the Exchange Ratio equal the quotient obtained by dividing
$35.00 by the Stock Value. SEE "SUMMARY--THE MERGER AGREEMENT--ILLUSTRATIVE
EXCHANGE RATIOS AND AMOUNT OF MERGER CONSIDERATION AT ASSUMED STOCK VALUES" FOR
A MORE DETAILED DESCRIPTION OF THE EXCHANGE RATIO, WHICH INCLUDES AT PAGE 12
ILLUSTRATIVE AMOUNTS OF SHARES OF HORTON COMMON STOCK TO BE RECEIVED BASED ON A
RANGE OF ASSUMED STOCK VALUES.     
   
  Assuming the Merger had been consummated on March 6, 1998 and the Stock Value
were based on the average of the closing prices of the Horton Common Stock for
the trading days within the anticipated Calculation Period prior to such date,
the Exchange Ratio would have been 2.25 shares of Horton Common Stock for each
share of Continental Common Stock (the "Assumed Exchange Ratio"). At the
Assumed Exchange Ratio, and assuming no exercise of Continental or Horton
options or conversion of Continental's 6 7/8% Convertible Subordinated Notes
due 2002 (the "Continental Convertible Notes") prior to the Merger, the former
stockholders of Continental would have received an aggregate of approximately
29% of the shares of Horton Common Stock outstanding immediately after the
Merger. If all the Continental Convertible Notes were converted immediately
prior to the Merger, the former stockholders of Continental (including such
former noteholders) would have received in the aggregate approximately 39% of
the shares of Horton Common Stock outstanding immediately after the Merger. On
March 5, 1998, the closing sales price of Horton Common Stock as reported for
New York Stock Exchange Composite Transactions was $23.06 per share. At such
price and at the Assumed Exchange Ratio, the market value of the Horton Common
Stock received in respect of each share of Continental Common Stock would have
been $51.89 per share.     
 
  Promptly after determination of the Exchange Ratio, Horton and Continental
will issue a press release advising their stockholders of the number of shares
of Horton Common Stock to be exchanged for each share of Continental Common
Stock. Horton and Continental currently anticipate that the Exchange Ratio will
be announced on the fourth trading day prior to the date of the Special
Meetings. Since the Exchange Ratio will be determined after the date hereof,
however, stockholders may not know the Exchange Ratio at the time of their
vote. TO FACILITATE THE VOTING PROCESS FOR THE SPECIAL MEETINGS, STOCKHOLDERS
OF HORTON WILL BE ABLE TO SUBMIT THEIR PROXIES AND REVOKE THEIR PROXIES BY
FACSIMILE BY THE STATED TIME OF THE HORTON STOCKHOLDERS MEETING AT THE
FOLLOWING TELEPHONE NUMBER: (817) 856-8259. STOCKHOLDERS OF CONTINENTAL WILL BE
ABLE TO SUBMIT THEIR PROXIES AND REVOKE THEIR PROXIES BY FACSIMILE BY THE
STATED TIME OF THE CONTINENTAL STOCKHOLDERS MEETING AT THE FOLLOWING TELEPHONE
NUMBER: (602) 483-8237. See "THE SPECIAL MEETINGS--Proxies."
   
  Horton has filed a Registration Statement on Form S-4 (the "Registration
Statement") under the Securities Act of 1933, as amended (the "Securities
Act"), with the Securities and Exchange Commission (the "Commission") covering
the shares of Horton Common Stock to be issued in the Merger. Horton will also
apply to have the shares of Horton Common Stock to be issued in the Merger
listed on the New York Stock Exchange. This Joint Proxy Statement/Prospectus
constitutes the Prospectus of Horton filed as part of the Registration
Statement relating to the offering of up to 29,396,069 shares of Horton Common
Stock, assuming the highest Exchange Ratio to which Horton is potentially
obligated under the Merger Agreement and including shares that are potentially
issuable upon the exercise of outstanding Continental options or Continental
Convertible Notes prior to the Merger.     
   
  SEE "RISK FACTORS" COMMENCING ON PAGE 22 FOR CERTAIN INFORMATION WHICH SHOULD
BE CAREFULLY CONSIDERED BEFORE VOTING UPON THE MATTERS DESCRIBED HEREIN.     
 
THE SHARES OF HORTON COMMON STOCK TO BE ISSUED IN THE MERGER HAVE NOT BEEN
APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE
SECURITIES COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY
STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS JOINT
PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.
       
    The date of this Joint Proxy Statement/Prospectus is March , 1998.     
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
AVAILABLE INFORMATION.....................................................   3
INCORPORATION OF CERTAIN INFORMATION BY REFERENCE.........................   3
CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS................   4
SUMMARY...................................................................   5
 Introduction.............................................................   5
 The Companies............................................................   5
 The Special Meetings; Voting Requirements; Voting Power of Executive
  Officers and Directors..................................................   6
 Risk Factors.............................................................   7
 The Merger...............................................................   7
 The Merger Agreement.....................................................  10
 Selected Historical and Pro Forma Financial Data.........................  14
 Comparative Per Share Data...............................................  19
 Comparative Market Prices and Dividends..................................  21
RISK FACTORS..............................................................  22
THE SPECIAL MEETINGS......................................................  24
 Times and Places; Purposes...............................................  24
 Voting Rights; Votes Required for Approval...............................  24
 Proxies..................................................................  25
THE MERGER................................................................  27
 Background of the Merger.................................................  27
 Recommendation of Horton Board; Horton's Reasons for the Merger..........  32
 Recommendation of Continental Board; Continental's Reasons for the
  Merger..................................................................  33
 Certain Exchanged Information............................................  34
 Opinions of Financial Advisors...........................................  35
 Interests of Certain Persons in the Merger...............................  48
 Accounting Treatment.....................................................  50
 Certain Federal Income Tax Consequences..................................  50
 Regulatory Approval......................................................  51
 Stock Exchange Listing...................................................  52
 Continental Debt.........................................................  52
 Certain Federal Securities Laws Consequences.............................  52
 No Dissenters' Rights....................................................  53
THE MERGER AGREEMENT......................................................  54
 The Merger...............................................................  54
 Merger Consideration.....................................................  54
 Conversion Procedure.....................................................  55
 Certain Representations and Warranties...................................  56
 Certain Covenants........................................................  56
 Conditions to the Merger.................................................  60
 Termination of the Merger Agreement......................................  61
 Termination Fee; Payment of Expenses.....................................  62
BUSINESS OF HORTON........................................................  63
BUSINESS OF CONTINENTAL...................................................  64
COMPARATIVE PER SHARE PRICES AND DIVIDENDS................................  65
 Horton...................................................................  65
 Continental..............................................................  65
 Equivalent Pro Forma Value...............................................  66
 Post-Merger Dividend Policy..............................................  66
UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS...............  67
HISTORICAL AND PRO FORMA CAPITALIZATION...................................  73
DESCRIPTION OF HORTON CAPITAL STOCK.......................................  74
 Horton Preferred Stock...................................................  74
 Horton Common Stock......................................................  74
COMPARISON OF STOCKHOLDERS' RIGHTS........................................  75
LEGAL MATTERS.............................................................  77
EXPERTS...................................................................  77
STOCKHOLDER PROPOSALS.....................................................  78
INDEX OF SELECTED DEFINED TERMS...........................................  79
Appendix A -- Agreement and Plan of Merger................................  A-1
Appendix B -- Opinion of Donaldson, Lufkin & Jenrette Securities
                Corporation ..............................................  B-1
Appendix C -- Opinion of Salomon Smith Barney ............................  C-1
Appendix D -- Opinion of Morgan Stanley & Co., Incorporated ..............  D-1
PART II INFORMATION NOT REQUIRED IN PROSPECTUS............................ II-1
</TABLE>     
 
 
                                       2
<PAGE>
 
  This Joint Proxy Statement/Prospectus does not contain all the information
contained in the Registration Statement filed with the Commission by Horton in
connection with the issuance of the shares of Horton Common Stock in the
Merger, certain parts of which are omitted in accordance with the Commission's
rules and regulations. All information in this Joint Proxy
Statement/Prospectus concerning Horton has been furnished by Horton and all
information in the Joint Proxy Statement/Prospectus concerning Continental has
been furnished by Continental.
 
                             AVAILABLE INFORMATION
 
  Each of Horton and Continental is subject to the informational requirements
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and,
in accordance therewith, files reports, proxy statements and other information
with the Commission. Such reports, proxy statements and other information may
be inspected and copied at the Commission's Public Reference Section, Room
1024, 450 Fifth Street, N.W., Judiciary Plaza, Washington, D.C. 20549, where
copies may be obtained at prescribed rates, as well as at the following
regional offices: 7 World Trade Center, Suite 1300, New York, New York 10048;
and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661. The
Commission also maintains a web site that contains reports, proxy and other
information filed electronically with the Commission, the address of which is
http://www.sec.gov. In addition, because the Horton Common Stock and the
Continental Common Stock are listed on The New York Stock Exchange, Inc. (the
"NYSE"), this material may also be inspected at the offices of the NYSE, 20
Broad Street, New York, New York 10005, where copies may be obtained at
prescribed rates.
 
  NO PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED OR INCORPORATED BY REFERENCE IN
THIS JOINT PROXY STATEMENT/PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATIONS SHOULD NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED. THIS
JOINT PROXY STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A
SOLICITATION OF AN OFFER TO PURCHASE, THE SECURITIES OFFERED BY THE JOINT
PROXY STATEMENT/PROSPECTUS, OR THE SOLICITATION OF A PROXY, IN ANY
JURISDICTION TO OR FROM ANY PERSON TO WHOM OR FROM WHOM IT IS UNLAWFUL TO MAKE
SUCH OFFER, SOLICITATION OF AN OFFER OR PROXY SOLICITATION IN SUCH
JURISDICTION. NEITHER THE DELIVERY OF THIS JOINT PROXY STATEMENT/PROSPECTUS
NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCE, CREATE ANY
IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF HORTON OR
CONTINENTAL SINCE THE DATE HEREOF OR THAT THE INFORMATION IN THIS JOINT PROXY
STATEMENT/PROSPECTUS OR IN THE DOCUMENTS INCORPORATED BY REFERENCE HEREIN IS
CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATES THEREOF. IF ANY MATERIAL CHANGE
OCCURS DURING THE PERIOD IN WHICH THIS JOINT PROXY STATEMENT/PROSPECTUS IS
REQUIRED TO BE DELIVERED, THIS JOINT PROXY STATEMENT/PROSPECTUS WILL BE
AMENDED AND SUPPLEMENTED ACCORDINGLY.
 
               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
 
  The following documents filed with the Commission by Horton (collectively,
the "Horton Reports") are incorporated in this Joint Proxy
Statement/Prospectus by reference: (i) Annual Report on Form 10-K for the
fiscal year ended September 30, 1997 (which incorporates by reference certain
information from Horton's Proxy Statement for its 1998 Annual Meeting of
Stockholders); (ii) Quarterly Report on Form 10-Q for the fiscal quarter ended
December 31, 1997; and (iii) Current Reports on Form 8-K dated February 27,
1997 and December 19, 1997.
 
  The following documents filed with the Commission by Continental
(collectively, the "Continental Reports") are incorporated in this Joint Proxy
Statement/Prospectus by reference: (i) Annual Report on Form 10-K for the
fiscal year ended May 31, 1997 (which incorporates by reference certain
information from Continental's Proxy Statement for its 1997 Annual Meeting of
Stockholders); (ii) Quarterly Reports on Form 10-Q for the fiscal quarters
ended August 31, 1997 and November 30, 1997; and (iii) Current Reports on Form
8-K, dated October 8, 1997 and December 18, 1997.
 
  All reports and other documents filed by Horton or Continental after the
date of this Joint Proxy Statement/Prospectus pursuant to Section 13(a),
13(c), 14 or 15(d) of the Exchange Act and prior to the Special Meetings shall
be deemed to be incorporated by reference herein and to be a part hereof.
 
                                       3
<PAGE>
 
  In each case, the material terms of all contracts or other documents filed
as exhibits to this Joint Proxy Statement/Prospectus are described herein or
in the filings incorporated by reference. However, statements contained in
this Joint Proxy Statement/Prospectus as to the contents of any contract or
document are not necessarily complete and in each instance such statements are
qualified in their entireties by reference to the copy of such contract or
other document filed as an exhibit to the Registration Statement or
incorporated by reference therein. Any statement contained in a document
incorporated or deemed to be incorporated in this Joint Proxy
Statement/Prospectus by reference shall be deemed to be modified or superseded
for the purpose of this Joint Proxy Statement/Prospectus to the extent that a
statement contained in this Joint Proxy Statement/Prospectus or in any other
subsequently filed document which also is or is deemed to be incorporated in
this Joint Proxy Statement/Prospectus by reference modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed,
except as so modified or superseded, to constitute a part of this Joint Proxy
Statement/Prospectus.
   
  THIS JOINT PROXY STATEMENT/PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE
WHICH ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. THE HORTON REPORTS
(OTHER THAN EXHIBITS TO THE HORTON REPORTS UNLESS SUCH EXHIBITS ARE
SPECIFICALLY INCORPORATED BY REFERENCE HEREIN) ARE AVAILABLE, WITHOUT CHARGE,
UPON WRITTEN OR ORAL REQUEST FROM ANY PERSON, INCLUDING ANY BENEFICIAL OWNER,
TO WHOM THIS JOINT PROXY STATEMENT/PROSPECTUS IS DELIVERED, TO D.R. HORTON,
INC., 1901 ASCENSION BOULEVARD, SUITE 100, ARLINGTON, TEXAS 76006, ATTENTION:
CORPORATE SECRETARY (TEL. (817) 856-8200). IN ORDER TO ENSURE TIMELY DELIVERY
OF THE DOCUMENTS, ANY REQUEST SHOULD BE MADE BY APRIL 3, 1998. THE COMMISSION
FILE NUMBER FOR HORTON IS 1-14122. THE CONTINENTAL REPORTS (OTHER THAN
EXHIBITS TO THE CONTINENTAL REPORTS UNLESS SUCH EXHIBITS ARE SPECIFICALLY
INCORPORATED BY REFERENCE HEREIN) ARE AVAILABLE, WITHOUT CHARGE, UPON WRITTEN
OR ORAL REQUEST FOR ANY PERSON, INCLUDING ANY BENEFICIAL OWNER, TO WHOM THIS
JOINT PROXY STATEMENT/PROSPECTUS IS DELIVERED, TO CONTINENTAL HOMES HOLDING
CORP., 7001 N. SCOTTSDALE ROAD, SUITE 2050, SCOTTSDALE, ARIZONA 85253,
ATTENTION: CORPORATE SECRETARY (TEL. (602) 483-0006). IN ORDER TO ENSURE
TIMELY DELIVERY OF THE DOCUMENTS, ANY REQUEST SHOULD BE MADE BY APRIL 3, 1998.
THE COMMISSION FILE NUMBER FOR CONTINENTAL IS 1-10700.     
 
          CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS
   
  This Joint Proxy Statement/Prospectus contains forward-looking statements
that are subject to risks and uncertainties. Forward-looking statements
include the information concerning possible or assumed future results of
operations of Horton and Continental set forth under "SUMMARY," "RISK
FACTORS," "THE MERGER--Recommendation of Horton Board; Horton's Reasons for
the Merger," "THE MERGER--Recommendation of Continental Board; Continental's
Reasons for the Merger," "THE MERGER--Certain Exchanged Information," "THE
MERGER--Opinions of Financial Advisors," "BUSINESS OF HORTON," "BUSINESS OF
CONTINENTAL" and "COMPARATIVE PER SHARE PRICES AND DIVIDENDS--Post-Merger
Dividend Policy" and those preceded by, followed by or that include the words
"believes," "expects," "anticipates" or similar expressions. For those
statements, each of Horton and Continental claims the protection of the safe
harbor for forward-looking statements contained in the Private Securities
Litigation Reform Act of 1995. Stockholders should understand that the
following important factors, in addition to those discussed elsewhere in this
Joint Proxy Statement/Prospectus and in the documents which are incorporated
by reference, could affect the future results of Horton and Continental, and
could cause those results to differ materially from those expressed in each
forward-looking statement: the strength of new home markets, changes in
general economic conditions, fluctuations in interest rates, changes in costs
of materials, supplies and labor and general competitive conditions.     
 
                                       4
<PAGE>
 
 
                                    SUMMARY
 
  The following summary is intended only to highlight certain information
contained elsewhere in this Joint Proxy Statement/Prospectus or incorporated by
reference herein. Unless the context otherwise requires, all references to
"Horton" are to D.R. Horton, Inc. and its consolidated subsidiaries, and all
references to "Continental" are to Continental Homes Holding Corp. and its
consolidated subsidiaries. This summary is not intended to be complete and is
qualified in its entirety by the more detailed information contained elsewhere
in this Joint Proxy Statement/Prospectus, the Appendices hereto and the
documents incorporated by reference or otherwise referred to herein.
Stockholders of Horton and Continental are urged to review this entire Joint
Proxy Statement/Prospectus carefully, including the Appendices hereto and such
other documents incorporated by reference or otherwise referred to herein.
 
INTRODUCTION
 
  Pursuant to the Merger Agreement, Horton and Continental have agreed that
Continental will merge with and into Horton, with Horton as the surviving
corporation. In the Merger, each outstanding share of Continental Common Stock
will be converted into the right to receive shares of Horton Common Stock in
accordance with an Exchange Ratio determined on the basis of the average of the
closing prices of Horton Common Stock as reported for New York Stock Exchange
Composite Transactions for 15 randomly selected trading days within the 30
consecutive trading days (the "Calculation Period") ending on the date that is
five trading days prior to the Closing Date (the "Stock Value"). The Merger
Agreement provides that the stockholders of Continental will receive for each
share of Continental Common Stock between 2.25 and 2.759 shares of Horton
Common Stock, depending on the Stock Value. However, if the Stock Value is less
than $12.69, Continental may terminate the Merger Agreement unless Horton
elects to have the Exchange Ratio equal the quotient obtained by dividing
$35.00 by the Stock Value. See "THE MERGER AGREEMENT--Merger Consideration."
The shares of Horton Common Stock held by Horton stockholders will remain
outstanding after the Merger.
   
  Assuming that the Merger had been consummated on March 6, 1998 and the Stock
Value were based on the average of the closing prices of the Horton Common
Stock for the trading within the anticipated Calculation Period prior to such
date, the Exchange Ratio would have been 2.25 shares of Horton Common Stock for
each share of Continental Common Stock (the "Assumed Exchange Ratio"). At the
Assumed Exchange Ratio, and assuming no exercise of Continental or Horton
options or conversion of the Continental Convertible Notes prior to the Merger,
the former stockholders of Continental would have received an aggregate of
approximately 29% of the shares of Horton Common Stock outstanding immediately
after the Merger. If all the Continental Convertible Notes were converted
immediately prior to the Merger, the former stockholders of Continental
(including such former noteholders) would have received in the aggregate
approximately 39% of the shares of Horton Common Stock outstanding immediately
after the Merger. On March 5, 1998, the closing sales price of Horton Common
Stock as reported for New York Stock Exchange Composite Transactions was $23.06
per share. At such price and at the Assumed Exchange Ratio, the market value of
the Horton Common Stock received in respect of each share of Continental Common
Stock would have been $51.89 per share.     
 
THE COMPANIES
 
  Horton. Horton is engaged primarily in the construction and sale of single-
family homes in metropolitan areas of the Mid-Atlantic, Midwest, Southeast,
Southwest, and West regions of the United States. Horton offers high-quality
homes with custom features, designed principally for the entry-level and move-
up market segments. Horton's homes generally range in size from 1,000 to 5,000
square feet and range in price from $80,000 to $600,000. For the year ended
September 30, 1997, Horton closed homes with an average sales price
approximating $166,700.
   
  Horton is one of the most geographically diversified homebuilders in the
United States, with operating divisions in 21 states and 35 markets. These
markets include Albuquerque, Atlanta, Austin, Birmingham,     
 
                                       5
<PAGE>
 
   
Charleston, Charlotte, Chicago, Cincinnati, Dallas/Fort Worth, Denver,
Greensboro, Greenville and Hilton Head, S.C., Houston, Jacksonville, Kansas
City, Las Vegas, Los Angeles, Minneapolis/St. Paul, Myrtle Beach, S.C.,
Nashville, New Jersey, Newport News, VA, Orlando, Pensacola, Phoenix,
Raleigh/Durham, Richmond, Salt Lake City, San Diego, South Florida, St. Louis,
Tucson, Wilmington, N.C. and suburban Washington, D.C.     
 
  Horton was incorporated in Delaware on July 1, 1991, to acquire all of the
assets and businesses of 25 predecessor companies, which were residential home
construction and development companies owned or controlled by Donald R. Horton.
Horton's principal executive offices are located at 1901 Ascension Boulevard,
Suite 100, Arlington, Texas 76006, and its telephone number is (817) 856-8200.
See "BUSINESS OF HORTON."
 
  Continental. Continental designs, constructs and sells high quality single-
family homes targeted primarily to entry-level and first-time move-up
homebuyers. Continental's homes generally range in size from 1,000 to 4,000
square feet and range in price from $59,000 to $435,000. For the year ended May
31, 1997, Continental closed homes with an average sales price approximating
$139,000.
 
  Continental is geographically diversified, currently operating in Phoenix,
Arizona; Austin, San Antonio and Dallas, Texas; Denver, Colorado; South
Florida; and Southern California. Continental is the largest non-retirement
homebuilder in the Phoenix market and the largest homebuilder in the Austin
market. Continental entered the Austin, San Antonio, South Florida and Dallas
markets in July 1993, January 1994, November 1994 and June 1996, respectively,
through acquisitions of existing homebuilders. In July 1996, Continental began
selling homes at "Arizona Traditions," its first active adult community.
Continental complements its homebuilding activities by providing mortgage
banking services to its homebuyers and to third parties in all locations.
 
  Continental was incorporated in Delaware in June 1986. Continental's
principal executive offices are located at 7001 N. Scottsdale Road, Suite 2050,
Scottsdale, Arizona 85253, and its telephone number is (602) 483-0006. See
"BUSINESS OF CONTINENTAL."
 
THE SPECIAL MEETINGS; VOTING REQUIREMENTS; VOTING POWER OF EXECUTIVE OFFICERS
AND DIRECTORS
   
  Horton. The Horton Stockholders Meeting will be held at Horton's principal
executive offices, 1901 Ascension Boulevard, Suite 100, Arlington, Texas 76006
on April 10, 1998, starting at 10:00 a.m., local time, See "THE SPECIAL
MEETINGS." At the Horton Stockholders Meeting, holders of Horton Common Stock
will be asked to adopt and approve the Horton Proposal. See "THE MERGER" and
"THE MERGER AGREEMENT."     
   
  Holders of Record of Horton Common Stock at the close of business on February
23, 1998 (the "Horton Record Date") have the right to receive notice of and to
vote at the Horton Stockholders Meeting and any adjournments or postponements
thereof. As of the Horton Record Date, there were 37,391,761 shares of Horton
Common Stock outstanding and entitled to vote. Each share of Horton Common
Stock is entitled to one vote on each matter that is properly presented to
stockholders for a vote at the Horton Stockholders Meeting. Under the Delaware
General Corporation Law ("DGCL") and Horton's Bylaws (the "Horton Bylaws"), the
affirmative vote of the holders of a majority of the outstanding shares of
Horton Common Stock is required to approve the Horton Proposal.     
   
  As of the Horton Record Date, directors and executive officers of Horton and
their respective affiliates as a group beneficially owned 14,484,681 shares of
Horton Common Stock, or approximately 39% of the outstanding shares of Horton
Common Stock, and Horton owned ten shares of Continental Common Stock. Such
directors and executive officers have advised that they intend to vote for the
Horton Proposal. Horton believes that, as of February 23, 1998, none of its
directors and executive officers owned any shares of Continental Common Stock.
       
  Continental. The Continental Stockholders Meeting will be held at
Continental's executive offices, 7001 N. Scottsdale Road, Suite 2050,
Scottsdale, Arizona 85253 on April 10, 1998, starting at 9:00 a.m., Phoenix
time.     
 
                                       6
<PAGE>
 
See "THE SPECIAL MEETINGS." At the Continental Stockholders Meeting, holders of
Continental Common Stock will be asked to adopt and approve the Continental
Proposal. See "THE MERGER" and "THE MERGER AGREEMENT."
   
  Holders of record of Continental Common Stock at the close of business on
February 23, 1998 (the "Continental Record Date") have the right to receive
notice of and to vote at the Continental Stockholders Meeting and any
adjournments or postponements thereof. As of the Continental Record Date, there
were 6,867,764 shares of Continental Common Stock outstanding and entitled to
vote. Each share of Continental Common Stock is entitled to one vote on each
matter that is properly presented to stockholders for a vote at the Continental
Stockholders Meeting. Under the DGCL and Continental's Bylaws (the "Continental
Bylaws"), the affirmative vote of the holders of a majority of the outstanding
shares of Continental Common Stock is required to approve the Continental
Proposal.     
   
  As of the Continental Record Date, directors and executive officers of
Continental and their respective affiliates as a group beneficially owned
102,095 shares of Continental Common Stock, or approximately 1.5% of the
outstanding shares of Continental Common Stock. Such directors and executive
officers have advised that they intend to vote for the Continental Proposal.
Continental believes that, as of February 23, 1998, none of its directors and
executive officers owned any shares of Horton Common Stock.     
 
RISK FACTORS
 
  In determining whether to vote for the Horton Proposal or the Continental
Proposal, as applicable, stockholders should carefully read and evaluate
certain risks associated with Horton, Continental and the Merger. See "RISK
FACTORS."
 
THE MERGER
   
  Recommendation of Horton Board; Horton's Reasons for the Merger. THE BOARD OF
DIRECTORS OF HORTON (THE "HORTON BOARD") BY UNANIMOUS VOTE HAS DETERMINED THAT
THE MERGER IS IN THE BEST INTERESTS OF THE HORTON STOCKHOLDERS AND RECOMMENDS
THAT HORTON STOCKHOLDERS VOTE IN FAVOR OF THE HORTON PROPOSAL. The Horton
Board's action is based upon its evaluation of a number of factors, including:
(i) the Merger is consistent with Horton's acquisition strategy; (ii) the
Merger is expected to provide the benefits associated with the creation of one
of the largest homebuilders; (iii) the cultural and operational fit with
Continental management; (iv) the increased market capitalization, liquidity and
financial strength of the combined company; (v) the prospects for improved
financial results from the Merger beyond what Horton might achieve on a stand-
alone basis; and (vi) the opinion of Donaldson, Lufkin, Jenrette Securities
Corporation ("DLJ"), Horton's financial advisor in connection with the Merger,
to the effect that, as of such date, the Exchange Ratio was fair, from a
financial point of view, to Horton and its stockholders. See "THE MERGER--
Recommendation of the Horton Board; Horton's Reasons for the Merger" and "THE
MERGER--Opinions of Financial Advisors--Opinion of Horton's Financial Advisor."
    
  Opinion of Horton Financial Advisor. On December 18, 1997, DLJ rendered to
the Horton Board its oral opinion (subsequently confirmed in writing) to the
effect that, based upon and subject to the matters set forth in its written
opinion, as of such date, the Exchange Ratio was fair, from a financial point
of view, to Horton and its stockholders. THE FULL TEXT OF THE WRITTEN OPINION
OF DLJ, WHICH SETS FORTH ASSUMPTIONS MADE, FACTORS CONSIDERED AND LIMITATIONS
ON THE REVIEW UNDERTAKEN BY DLJ, IS INCLUDED AS APPENDIX B TO THIS JOINT PROXY
STATEMENT/PROSPECTUS. HORTON STOCKHOLDERS ARE URGED TO READ SUCH OPINION
CAREFULLY AND IN ITS ENTIRETY. THE OPINION OF DLJ DOES NOT CONSTITUTE A
RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW TO VOTE AT THE HORTON STOCKHOLDERS
MEETING. See "THE MERGER--Opinions of Financial Advisors--Opinion of Horton's
Financial Advisor."
 
  Recommendation of Continental Board; Continental's Reasons for the
Merger. THE BOARD OF DIRECTORS OF CONTINENTAL (THE "CONTINENTAL BOARD") BY
UNANIMOUS VOTE HAS DETERMINED THAT THE MERGER IS IN THE BEST INTERESTS OF THE
HOLDERS OF CONTINENTAL COMMON STOCK AND RECOMMENDS THAT HOLDERS OF CONTINENTAL
 
                                       7
<PAGE>
 
COMMON STOCK VOTE IN FAVOR OF THE CONTINENTAL PROPOSAL. IN CONSIDERING THE
RECOMMENDATION OF THE MERGER BY THE CONTINENTAL BOARD, CONTINENTAL STOCKHOLDERS
SHOULD BE AWARE THAT CERTAIN CONTINENTAL DIRECTORS MAY BE DEEMED TO HAVE
CONFLICTS OF INTEREST WITH RESPECT TO THE MERGER. SUCH INTERESTS, TOGETHER WITH
OTHER RELEVANT FACTORS, WERE CONSIDERED BY THE CONTINENTAL BOARD IN
RECOMMENDING THE MERGER TO THE CONTINENTAL STOCKHOLDERS AND APPROVING THE
MERGER AGREEMENT. SEE "INTERESTS OF CERTAIN PERSONS IN THE MERGER." The
Continental Board's action is based upon its evaluation of a number of factors,
including (i) current historical market prices and trading information with
respect to each company's common stock and the significant premium offered to
stockholders in the Merger compared to historical trading levels of Continental
stock; (ii) information concerning the business, assets, capital structure,
financial performance and conditions and prospects of Continental and Horton;
(iii) the opinion of Smith Barney Inc. (now associated with Salomon Brothers
Inc and collectively with Salomon Brothers Inc doing business as, and
hereinafter referred to as "Salomon Smith Barney"), Continental's financial
advisor, and Morgan Stanley & Co., Incorporated ("Morgan Stanley"), the
financial advisor to Mr. Anderson and JoAnn Rudd, Continental's independent
directors (the "Independent Directors"), to the effect that as of the dates of
their respective opinions and based upon and subject to certain matters stated
therein, the Exchange Ratio was fair, from a financial point of view, to the
holders of Continental Common Stock; (iv) the structure of the Merger as a tax-
free exchange, the terms of the Merger Agreement, the amount and form of
consideration, the Exchange Ratio and the currency to be received; (v) the
fairness of the solicitation process as a whole including Continental's ability
to terminate the Merger Agreement in the event it receives a superior proposal
if required by the fiduciary duty of the directors subject to payment of a
"break-up" fee; (vi) Horton's intention to operate Continental as a separate
region and retain its name; (vii) the anticipated treatment of the Merger as a
pooling of interests for financial accounting purposes; and (viii) the right of
Continental to designate two directors to sit on Horton's board of directors.
See "THE MERGER--Recommendation of the Continental Board; Continental's Reasons
for the Merger," "THE MERGER--Opinions of Financial Advisors--Opinion of
Continental's Financial Advisor" and "THE MERGER--Opinions of Financial
Advisors--Opinion of Continental Independent Directors' Financial Advisor."
 
  Opinions of Financial Advisors to Continental and the Independent
Directors. On December 18, 1997, Salomon Smith Barney rendered to the
Continental Board its oral opinion (subsequently confirmed in writing) to the
effect that, as of the date of such opinion and based upon and subject to
certain matters stated therein, the Exchange Ratio was fair, from a financial
point of view, to the holders of Continental Common Stock. Also on December 18,
1997, Morgan Stanley rendered to the Independent Directors its oral opinion
(subsequently confirmed in writing) to the effect that, as of the date of such
opinion and based upon and subject to certain matters stated therein, the
consideration to be received by the holders of Continental Common Stock in the
Merger was fair from a financial point of view to such holders. The full text
of the written opinions of Salomon Smith Barney and Morgan Stanley dated
December 18, 1997, which set forth the assumptions made, matters considered and
limitations on the review undertaken, are attached as Appendix C and Appendix
D, respectively, to this Joint Proxy Statement/Prospectus and should be read
carefully in their entirety. THE OPINION OF SALOMON SMITH BARNEY IS DIRECTED TO
THE BOARD OF DIRECTORS OF CONTINENTAL AND THE OPINION OF MORGAN STANLEY IS
DIRECTED TO THE INDEPENDENT DIRECTORS OF CONTINENTAL, AND RELATE ONLY TO THE
FAIRNESS OF THE EXCHANGE RATIO FROM A FINANCIAL POINT OF VIEW, DO NOT ADDRESS
ANY OTHER ASPECT OF THE MERGER OR RELATED TRANSACTIONS AND DO NOT CONSTITUTE A
RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW SUCH STOCKHOLDER SHOULD VOTE AT THE
CONTINENTAL SPECIAL MEETING. See "THE MERGER--Opinions of Financial Advisors--
Opinion of Continental's Financial Advisor" and "THE MERGER--Opinions of
Financial Advisors--Opinion of Continental Independent Directors' Financial
Advisor."
 
  Interests of Certain Persons in the Merger. Certain members of Continental's
management and the Continental Board may be deemed to have certain interests in
the Merger that are in addition to their interests as stockholders of
Continental generally. Certain directors and executive officers of Continental
will be directors of Horton and officers of the Continental region of Horton
following the Merger. In the Merger, Horton will assume the existing employment
and severance arrangements of certain officers of Continental and will
indemnify and
 
                                       8
<PAGE>
 
maintain directors and officers insurance covering Continental's directors and
officers following the Merger. In addition, Horton required the chief executive
officer of Continental and the head of Continental's Austin division, to enter
into non-competition agreements for which they will be granted options to
purchase Horton Common Stock and other consideration. To the knowledge of the
Continental Board, no former director or executive officer of Continental has
any interest in the Merger other than as a stockholder of Continental. The
Continental Board was aware of such interests and considered them in approving
the Merger Agreement and the Merger. No member of the Horton Board has any
interest in the Merger other than as a Horton stockholder. See "THE MERGER--
Interests of Certain Persons in the Merger."
 
  Regulatory Approval. The Merger is subject to the requirements of the Hart-
Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act"),
which provide that certain transactions may not be consummated until required
information and materials are furnished to Antitrust Division of the Department
of Justice (the "Antitrust Division") and the Federal Trade Commission (the
"FTC") and the requisite waiting period has expired or is terminated. Horton
and Continental filed the required information and materials with the Antitrust
Division and the FTC on January 14, 1998. On February 4, 1998, Horton and
Continental received notice of the early termination of the requisite waiting
period. See "THE MERGER--Regulatory Approval."
   
  Contemplated Accounting Treatment. The Merger is expected to qualify as a
"pooling of interests" for accounting and financial reporting purposes. The
receipt of letters as of the Closing Date from Horton's and Continental's
independent accountants as to the appropriateness of such accounting for the
Merger is a condition to consummation of the Merger. Neither Horton nor
Continental intends to waive receipt of such letters as conditions to
consummate the Merger. Were they to waive such conditions in any material
respect, Horton and Continental would provide their stockholders with
appropriately revised disclosures and recirculate proxies. See "THE MERGER--
Accounting Treatment."     
   
  Certain Federal Income Tax Consequences. It is expected that the Merger will
constitute a reorganization for United States federal income tax purposes and,
accordingly, that no gain or loss will be recognized for United States federal
income tax purposes by holders of Continental Common Stock upon the conversion
of Continental Common Stock into Horton Common Stock (except with respect to
any cash received in lieu of a fractional share interest in Horton Common
Stock). The respective obligations of Horton and Continental to consummate the
Merger are conditioned on the receipt by Horton of an opinion from Gibson, Dunn
& Crutcher LLP, its counsel, and the receipt by Continental of an opinion from
Cahill Gordon & Reindel, its counsel, that the Merger constitutes a
reorganization under Section 368(a) of the Internal Revenue Code of 1986, as
amended. Horton and Continental have received opinions of such counsel to such
effect, which opinions are expected to be updated at the time of the Merger.
Neither Horton nor Continental intends to waive receipt of the updated opinions
as conditions to their obligations to consummate the Merger. Were they to waive
such conditions in any material respect, Horton and Continental would provide
their stockholders with appropriately revised disclosures and recirculate
proxies. See "THE MERGER--Certain Federal Income Tax Consequences." CONTINENTAL
STOCKHOLDERS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS AS TO THE SPECIFIC TAX
CONSEQUENCES TO THEM OF THE MERGER.     
 
  No Dissenters' Rights. Under the DGCL, holders of Horton Common Stock and
Continental Common Stock are not entitled to dissenters' appraisal rights in
connection with the Merger. See "THE MERGER--No Dissenters' Rights."
 
  Listing of Horton Common Stock. Horton will apply for the listing of Horton
Common Stock to be issued in the Merger on the NYSE, and such shares will trade
on the NYSE upon official notice of issuance under the symbol DHI. It is a
condition to consummation of the Merger that the shares of Horton Common Stock
to be issued in the Merger shall have been approved for listing on the NYSE,
subject to official notice of issuance. See "THE MERGER--Stock Exchange
Listing."
 
                                       9
<PAGE>
 
 
  Stock Options. At the Effective Time, each outstanding option to purchase
Continental Common Stock will be assumed by Horton and will thereafter be
exercisable for the number of shares of Horton Common Stock equal to the number
of shares of Continental Common Stock subject thereto multiplied by the
Exchange Ratio, with an exercise price per share equal to the exercise price
per share of Continental Common Stock subject thereto divided by the Exchange
Ratio. See "THE MERGER AGREEMENT--Certain Covenants--Continental Stock
Options."
 
  Continental Debt. As a result of the Merger, the Continental Convertible
Notes will become convertible into shares of Horton Common Stock. The
Continental Convertible Notes are currently outstanding in the aggregate
principal amount of $86,150,000, have a conversion rate of 42.105 shares of
Continental Common Stock (equivalent to a conversion price of approximately
$23.75 per share) per $1,000 principal amount, and are redeemable at the option
of Continental at certain premiums beginning on November 1, 1998. In the
Merger, the Continental Convertible Notes will become convertible into a number
of shares of Horton Common Stock equal to the product of such conversion rate
times the Exchange Ratio. The Merger will not constitute a "change in control"
for the purposes of the indenture for the Continental Convertible Notes.
 
  The Merger will constitute a "change in control" with respect to
Continental's 10% Senior Notes due 2006 (the "Continental Senior Notes")
currently outstanding in the aggregate principal amount of $150,000,000, and
Horton will be required to offer to repurchase such notes from the holders
thereof within 75 days after the Closing Date at a purchase price of 101% of
the principal amount thereof, plus accrued interest. In addition, the Merger
constitutes a "change in control" under Continental's revolving and warehouse
lines of credit, which were outstanding in the aggregate principal amount of
approximately $61.9 million as of December 31, 1997. Horton expects to finance
the purchase of any Continental Senior Notes as may be tendered for purchase
and to refinance Continental's existing revolving and warehouse lines of credit
from Horton's existing credit lines. The Continental Senior Notes bear interest
at the rate of 10% per annum. Continental's revolving and warehouse lines of
credit currently bear interest at rates ranging from LIBOR plus 135 basis
points to LIBOR plus 175 basis points per annum. Horton's existing credit lines
currently bear interest at rates per annum ranging from LIBOR plus 85 basis
points to LIBOR plus 127.5 basis points per annum. See "THE MERGER--Continental
Debt."
 
THE MERGER AGREEMENT
 
  Conversion of Continental Common Stock. At the time at which the certificate
of merger in respect of the Merger is filed with the Secretary of State of the
State of Delaware (the "Effective Time"), each outstanding share of Continental
Common Stock (other than treasury shares, shares held by any wholly owned
subsidiary of Continental and shares held by Horton or any wholly owned
subsidiary of Horton) will automatically be converted into the right to receive
only shares of Horton Common Stock and cash in lieu of fractional shares of
Horton Common Stock. At the Effective Time, each certificate representing
shares of Continental Common Stock converted into the right to receive Horton
Common Stock will be deemed to represent only a right to receive shares of
Horton Common Stock and cash in lieu of any fractional shares. See "THE MERGER
AGREEMENT--Merger Consideration--Conversion of Continental Common Stock." For a
summary of the principal differences between the rights of the holders of
Horton Common Stock and Continental Common Stock, see "COMPARISON OF
STOCKHOLDERS' RIGHTS."
 
  HOLDERS OF CONTINENTAL COMMON STOCK SHOULD NOT SEND ANY CERTIFICATES
REPRESENTING CONTINENTAL COMMON STOCK WITH THE ENCLOSED PROXY CARD. A LETTER OF
TRANSMITTAL WILL BE MAILED AS SOON AS PRACTICABLE AFTER THE EFFECTIVE TIME TO
EACH HOLDER OF RECORD OF OUTSTANDING CONTINENTAL COMMON STOCK. CONTINENTAL
STOCKHOLDERS SHOULD SEND CERTIFICATES REPRESENTING CONTINENTAL COMMON STOCK TO
THE EXCHANGE AGENT TO BE NAMED IN THE LETTER OF TRANSMITTAL ("EXCHANGE AGENT")
ONLY AFTER THEY RECEIVE, AND ONLY IN ACCORDANCE WITH, THE INSTRUCTIONS
CONTAINED IN THE LETTER OF TRANSMITTAL. CERTIFICATES REPRESENTING SHARES OF
HORTON COMMON STOCK WILL ONLY BECOME DELIVERABLE TO HOLDERS OF RECORD OF
CONTINENTAL COMMON STOCK AT THE
 
                                       10
<PAGE>
 
EFFECTIVE TIME AND WILL BE DELIVERED ONLY UPON SURRENDER TO THE EXCHANGE AGENT
OF THE CERTIFICATE(S) REPRESENTING SHARES OF CONTINENTAL COMMON STOCK, TOGETHER
WITH A PROPERLY COMPLETED LETTER OF TRANSMITTAL.
   
  Consideration to be Received by Continental Stockholders. At the Effective
Time, by virtue of the Merger and without any action on the part of Horton,
Continental or the holders of any of the securities of Horton or Continental,
each share of Continental Common Stock issued and outstanding immediately prior
to the Effective Time (other than treasury shares, shares held by any wholly
owned subsidiary of Continental and shares held by Horton or any wholly owned
subsidiary of Horton) will be converted into the right to receive a number of
shares of Horton Common Stock determined in accordance with the Exchange Ratio.
The Exchange Ratio will be determined in accordance with the following: (i) if
the Stock Value is greater than or equal to $16.878 and less than or equal to
$18.776, the Exchange Ratio will be 2.37; (ii) if the Stock Value is less than
$16.878 and greater than $14.50, the Exchange Ratio will equal the quotient
obtained by dividing $40.00 by the Stock Value (rounded to the nearest one
thousandth); (iii) if the Stock Value is more than $18.776 and less than
$19.78, the Exchange Ratio will equal the quotient obtained by dividing $44.50
by the Stock Value (rounded to the nearest one thousandth); (iv) if the Stock
Value is less than or equal to $14.50, the Exchange Ratio will be 2.759;
provided that the Exchange Ratio will equal the quotient obtained by dividing
$35.00 by the Stock Value (rounded to the nearest one thousandth) if the Stock
Value is less than $12.69 and Horton so elects; and (v) if the Stock Value is
more than or equal to $19.78, the Exchange Ratio will be 2.25. If the Stock
Value is less than $12.69, Continental may terminate the Merger Agreement,
unless Horton elects to have a higher Exchange Ratio, calculated pursuant to
the proviso to clause (iv) above. The term "Stock Value" means the average of
the closing prices of Horton Common Stock as reported for New York Stock
Exchange Composite Transactions for 15 randomly selected trading days within
the 30 consecutive trading days ending on the date that is five trading days
prior to the Closing Date. See "THE MERGER AGREEMENT--Merger Consideration" and
"THE MERGER AGREEMENT--Termination of the Merger Agreement" and "DESCRIPTION OF
HORTON CAPITAL STOCK." Horton currently believes that it would not elect a
higher Exchange Ratio were Continental to seek to terminate the Merger
Agreement in the event the Stock Value is less than $12.69. If Horton were to
seek to proceed with the Merger in such event, Horton and Continental would
provide their stockholders with appropriately revised disclosures and
recirculate proxies.     
 
  Illustrative Exchange Ratios and Amount of Merger Consideration at Assumed
Stock Values. The following table shows, at various assumed Stock Values, the
indicated Exchange Ratio and the indicated market value of the shares of Horton
Common Stock received for each share of Continental Common Stock (assuming the
market value of the Horton Common Stock equals the assumed Stock Value). This
table does not include the cash to be received in lieu of fractional shares of
Horton Common Stock.
 
  THE RANGE OF STOCK VALUES PRESENTED IN THE FOLLOWING TABLE IS FOR
ILLUSTRATIVE PURPOSES ONLY AND THERE CAN BE NO ASSURANCE THAT THE ACTUAL STOCK
VALUE WILL RESULT IN AN INDICATED EXCHANGE RATIO OR INDICATED MARKET VALUE
SHOWN IN THE TABLE. NO ASSURANCE CAN BE GIVEN THAT ANY ASSUMED STOCK VALUE OR
INDICATED MARKET VALUE OF HORTON COMMON STOCK SHOWN IN THE TABLE WILL BE
EQUIVALENT TO THE MARKET VALUE OF HORTON COMMON STOCK ON THE DATE SUCH STOCK IS
RECEIVED BY A HOLDER OF CONTINENTAL COMMON STOCK OR AT ANY OTHER TIME. THE
MARKET VALUE OF HORTON COMMON STOCK RECEIVED BY A HOLDER OF CONTINENTAL COMMON
STOCK MAY BE GREATER OR LESS THAN THE RECENT MARKET VALUES OF HORTON COMMON
STOCK OR THE ACTUAL STOCK VALUE.
 
                                       11
<PAGE>
 
 
                                  ILLUSTRATION
 
       ILLUSTRATIVE EXCHANGE RATIOS AND AMOUNT OF MERGER CONSIDERATION 
                    BASED ON RANGE OF ASSUMED STOCK VALUES
 
<TABLE>   
<CAPTION>
                                                        INDICATED MARKET VALUE OF HORTON COMMON STOCK TO BE
                                                               RECEIVED IN EXCHANGE FOR ONE SHARE OF
      ASSUMED STOCK VALUE($)   INDICATED EXCHANGE RATIO           CONTINENTAL COMMON STOCK($)(1)
      ----------------------   ------------------------ ---------------------------------------------------
      <S>                      <C>                      <C>
              25.00                     2.250                                  56.25
              24.50                     2.250                                  55.13
              24.00                     2.250                                  54.00
              23.50                     2.250                                  52.88
              23.00                     2.250                                  51.75
              22.50                     2.250                                  50.63
              22.00                     2.250                                  49.50
              21.50                     2.250                                  48.38
              21.00                     2.250                                  47.25
              20.50                     2.250                                  46.13
              19.78                     2.250                                  44.50
              19.50                     2.282                                  44.50
              19.00                     2.342                                  44.50
              18.776                    2.370                                  44.50
              18.00                     2.370                                  42.66
              17.50                     2.370                                  41.48
              16.878                    2.370                                  40.00
              16.00                     2.500                                  40.00
              15.00                     2.667                                  40.00
              14.50                     2.759                                  40.00
              14.00                     2.759                                  38.63
              13.50                     2.759                                  37.25
              12.69                     2.759                                  35.00
              12.00                     2.917(2)                               35.00
              11.50                     3.043(2)                               35.00
</TABLE>    
- --------
(1) Assuming that the Exchange Ratio is not adjusted prior to the Effective
    Time due to a change in the Horton Common Stock by reason of a stock split
    (including a reverse split) of the Horton Common Stock or a dividend
    payable in Horton Common Stock or any other distribution of securities to
    holders of Horton Common Stock with respect to their Horton Common Stock
    (including without limitation such a distribution made in connection with a
    recapitalization, reclassification, merger, consolidation, reorganization
    or similar transaction). See "THE MERGER AGREEMENT--Merger Consideration."
   
(2) If the Stock Value is less than $12.69, Continental may terminate the
    Merger Agreement unless Horton elects to have the Exchange Ratio equal the
    quotient obtained by dividing $35.00 by the Stock Value. Horton is not
    obligated to make such election, and it currently believes that it would
    not do so. See "THE SPECIAL MEETINGS--Proxies--General."     
 
    Fractional Shares. Holders of Continental Common Stock who would otherwise
have been entitled to receive a fraction of a share of Horton Common Stock will
receive, in lieu thereof, cash (without interest) in an amount equal to such
fractional share multiplied by the per share closing price of Horton Common
Stock on the date of the Effective Time (or, if shares of Horton Common Stock
do not trade on such date, the first date of trading of Horton Common Stock
after the Effective Time). Such payment of cash consideration in lieu of
issuing fractional shares is not separately bargained for consideration, but
merely represents a mechanical rounding off for purposes of simplifying the
corporate and accounting complexities which would otherwise be caused by the
issuance of fractional shares.
 
                                       12
<PAGE>
 
 
  No Change in Horton Common Stock. The shares of Horton Common Stock held by
Horton stockholders will remain unchanged in the Merger.
 
  Conditions to the Merger. The obligations of Horton and Continental to
consummate the Merger are subject to the fulfillment or waiver of various
conditions including: (i) the absence of any restraining order, injunction or
other legal restraint preventing the consummation of the Merger or any law
which makes the consummation of the Merger illegal; (ii) the absence of any
action or proceeding by or before any governmental authority or court seeking
to prohibit or limit Horton from exercising all material rights and privileges
pertaining to its ownership of the assets of Continental or the ownership or
operation by Horton of the business or assets of Horton, or seeking to compel
Horton to dispose of or hold separate all or any material portion of the
business or assets of Horton as a result of the Merger or the transactions
contemplated by the Merger Agreement; (iii) the expiration or termination of
the applicable waiting period under the HSR Act; (iv) approval by the
stockholders of Horton and Continental of the Horton Proposal and the
Continental Proposal, respectively; (v) the listing on the NYSE of the Horton
Common Stock to be issued in connection with the Merger, subject to official
notice of issuance; (vi) the absence of any stop order suspending the
effectiveness of the Registration Statement and no proceeding for that purpose
having been initiated by the Commission or any state regulatory authorities;
(vii) the receipt of all consents (or filings or registrations with) any
governmental body, the absence of which would have a material adverse effect on
Horton (before or after the Merger); (viii) the qualification of the Merger for
"pooling of interests" accounting treatment and the receipt of letters from
Horton's and Continental's independent accountants as to the appropriateness of
such accounting for the Merger; and (ix) the receipt of certain tax opinions.
 
  Whether Horton or Continental would be willing to waive any particular
condition, if it were to become evident that any such condition could not be
satisfied, would depend on all the facts and circumstances pertaining to such
event. See "THE MERGER AGREEMENT--Conditions to the Merger."
 
  No Solicitation. Continental has agreed that it will not encourage, solicit,
participate in or initiate discussions or negotiations with, or provide any
non-public information to, any person or group other than Horton concerning any
Third Party Acquisition (as defined), subject to certain limited exceptions as
set forth in the Merger Agreement. Continental has agreed that the Continental
Board will not withdraw its recommendation of the Continental Proposal or
recommend, or cause Continental to enter into any agreement with respect to,
any Third Party Acquisition except under certain limited circumstances in
connection with a Superior Proposal (as defined), but only after providing
notice to Horton that Continental has received a Superior Proposal and only if
Horton does not make an offer which is as favorable to Continental's
stockholders. In addition, Continental is not entitled to enter into any
agreement with respect to a Superior Proposal unless the Merger Agreement is
terminated by its terms. See "THE MERGER AGREEMENT--Certain Covenants--No
Solicitation" and "THE MERGER AGREEMENT--Termination of the Merger Agreement."
 
  Termination of the Merger Agreement. The Merger Agreement may be terminated
at any time prior to the Effective Time, whether before or after the approval
by Horton's or Continental's stockholders, in certain circumstances, including:
(i) by mutual written consent of the parties; (ii) by either party: (a) if the
Continental stockholders do not approve the Continental Proposal; (b) if the
Merger is not consummated on or before May 31, 1998; (c) if a court of
competent jurisdiction or other governmental body has issued a nonappealable
final order or taken any other action permanently restraining, enjoining or
otherwise prohibiting the Merger, subject to certain limitations; (d) if the
other party materially breaches any representation or covenant contained in the
Merger Agreement, subject to certain cure rights; (e) if the Horton
Stockholders do not approve the Horton Proposal or (f) in the event that
certain conditions are not capable of being satisfied prior to May 31, 1998;
(iii) by Continental if it has received a Superior Proposal, the Continental
Board determines in good faith, as advised by outside counsel, that it is
required to do so in order to comply with its fiduciary duties, withdraws its
recommendation of the Merger or approves or recommends such Superior Proposal
(as defined), and the Continental Board complies with the applicable
termination fee and reimbursement provisions of the Merger
 
                                       13
<PAGE>
 
Agreement; (v) by Horton if the Continental Board has recommended to the
Continental stockholders a Superior Proposal or has withdrawn its
recommendation of the Continental Proposal; or (vi) by Continental if the Stock
Value is less than $12.69, unless prior to the Closing Date Horton elects to
have the Exchange Ratio equal to the quotient obtained by dividing $35.00 by
the Stock Value. See "THE MERGER AGREEMENT--Termination of the Merger
Agreement."
 
  Termination Fee; Payment of Expenses. Continental is required to pay Horton
$12,000,000 (the "Termination Fee") if: (i) Horton terminates the Merger
Agreement because (a) the Continental Board has recommended a Superior Proposal
to the Continental stockholders or has withdrawn its recommendation of the
Continental Proposal or (b) of a material breach by Continental, and within
twelve months thereafter Continental enters into an agreement with respect to a
Third Party Acquisition or a Third Party Acquisition occurs involving any party
with whom Continental was in contact prior to such termination; (ii)
Continental terminates the Merger Agreement because it has received a Superior
Proposal, and the Continental Board determines in good faith, as advised by
outside counsel, that it is required to do so in order to comply with its
fiduciary duties, withdraws its recommendation of the Merger or approves or
recommends such Superior Proposal; or (iii) either party terminates the Merger
Agreement because Continental's stockholders do not approve the Continental
Proposal and at the time of the Continental Stockholders Meeting there was
outstanding an offer by a third party to consummate a Third Party Acquisition
involving the payment of consideration to Continental's stockholders in excess
of the value of the shares of Horton Common Stock to be received pursuant to
the Merger Agreement and within twelve months thereafter Continental enters
into an agreement with respect to such Third Party Acquisition or such Third
Party Acquisition occurs.
 
  In the event the Merger Agreement is terminated by Horton or by Continental
because Continental's stockholders do not approve the Continental Proposal,
Continental is obligated to reimburse Horton for up to $1,500,000 of its
expenses and fees in connection with the Merger. Any such reimbursement
payments by Continental will be credited against the Termination Fee if it is
otherwise payable. In the event the Merger Agreement is terminated by
Continental because the Horton stockholders do not approve the Horton Proposal,
Horton is obligated to reimburse Continental for up to $1,500,000 of its
expenses and fees in connection with the Merger.
 
  See "THE MERGER AGREEMENT--Termination Fee; Payment of Expenses."
 
                SELECTED HISTORICAL AND PRO FORMA FINANCIAL DATA
 
  The following selected historical financial data of Horton and Continental
have been derived from their respective historical audited and unaudited
consolidated financial statements and should be read in conjunction with such
consolidated financial statements and the notes thereto that are incorporated
herein by reference. The selected pro forma combined financial data of Horton
and Continental have been derived from the unaudited pro forma condensed
combined financial statements and should be read in conjunction with such pro
forma condensed combined financial statements and the notes thereto included
elsewhere in this Joint Proxy Statement/Prospectus. The pro forma financial
data for the year ended September 30, 1997, and the three months ended December
31, 1996, contain the results of operations of the Torrey Group of Companies
("Torrey") prior to acquisition by Horton.
 
  The pro forma financial information does not purport to represent what
Horton's financial position or results of operations would have actually been
had the Merger occurred at the beginning of the earliest period presented or to
project Horton's financial position or results of operations for any future
date or period. It does not include any one-time, nonrecurring Merger-related
costs.
 
                                       14
<PAGE>
 
 
  The unaudited pro forma condensed combined statements of income combine
Horton's historical results for each of the three months ended December 31,
1996 and 1997, and each of the years ended September 30, 1995, 1996 and 1997,
with Continental's historical results for each of the three months ended
December 31, 1996 and 1997, each of the years ended May 31, 1995 and 1996, and
the twelve months ended September 30, 1997, respectively, giving effect to the
Merger as if it had occurred on October 1, 1994. The unaudited pro forma
condensed combined balance sheet combines Horton's and Continental's
consolidated condensed balance sheets as of December 31, 1997, giving effect to
the Merger as if it had occurred on December 31, 1997.
 
  Horton has a fiscal year ending September 30, and Continental has a fiscal
year ending May 31. Accordingly, the unaudited pro forma condensed combined
financial statements for each of the three months ended December 31, 1996 and
1997 and the year ended September 30, 1997, include Continental's financial
statements conformed to Horton's fiscal year end.
 
  As permitted by Commission regulations, Continental's four-month period ended
September 30, 1996 has been omitted from the unaudited pro forma condensed
combined statements of income. Continental's Revenues, Net Income and Diluted
Net Income Per Share were $234.4 million, $11.2 million and $1.15,
respectively, for such four-month period. Continental's Cash Dividends Per
Share during such four-month period amounted to $.05.
 
                                       15
<PAGE>
 
                       SELECTED HISTORICAL FINANCIAL DATA
                (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
 
HORTON
 
<TABLE>
<CAPTION>
                                                                  FOR THE THREE
                                     FOR THE FISCAL YEARS          MONTHS ENDED
                                      ENDED SEPTEMBER 30,          DECEMBER 31,
                              ----------------------------------- --------------
                              1993(1)  1994   1995   1996   1997   1996   1997
                              ------- ------ ------ ------ ------ ------ -------
<S>                           <C>     <C>    <C>    <C>    <C>    <C>    <C>
INCOME STATEMENT DATA:
 Revenues...................  $190.1  $393.3 $437.4 $547.3 $837.3 $144.4 $ 231.2
 Net income from continuing
  operations................     8.9    17.7   20.5   27.4   36.2    6.8    10.8
 Net income from continuing
  operations per
  share(2)(3)(7)
 Basic......................    0.33    0.65   0.75   0.89   1.03   0.21    0.29
 Diluted....................    0.32    0.63   0.74   0.87   1.01   0.21    0.28
 Cash dividends per share...     --      --     --     --    0.06    --     0.02
 Weighted average number of
  shares outstanding
  (000's)(2)(3)(7)
 Basic......................  26,934  27,195 27,340 30,738 35,080 32,375  37,337
 Diluted....................  27,672  27,845 27,849 31,420 35,871 33,003  38,789
SELECTED OPERATING DATA:
 Number of homes closed.....   1,187   2,360  2,474  3,284  5,018    855   1,430
 New sales orders, net
  (homes)(4)................   1,542   2,327  2,553  3,488  5,177    751   1,540
 New sales orders, net ($
  value)(4).................  $246.4  $394.6 $449.3 $585.5 $863.2 $129.8 $ 258.0
 Sales backlog at end of
  period (homes)(5).........     717     773  1,000  1,204  1,793  1,208   1,903
 Sales backlog at end of
  period ($ value)(5).......  $122.2  $140.5 $170.7 $208.9 $312.2 $223.5 $ 339.0
OTHER FINANCIAL DATA:
 Ratio of earnings to fixed
  charges(6)................    6.3x    4.6x   3.5x   3.7x   3.2x   3.6x    2.8x
<CAPTION>
                                                                      AS OF
                                      AS OF SEPTEMBER 30,          DECEMBER 31,
                              ----------------------------------- --------------
                               1993    1994   1995   1996   1997   1996   1997
                              ------- ------ ------ ------ ------ ------ -------
<S>                           <C>     <C>    <C>    <C>    <C>    <C>    <C>
BALANCE SHEET DATA:
 Inventories................  $129.0  $204.1 $282.9 $345.3 $604.6 $400.5  $653.2
 Total assets...............   158.7   230.9  318.8  402.9  719.8  445.9   765.1
 Notes payable..............    62.2   108.6  169.9  169.9  355.3  203.2   392.1
 Stockholders' equity.......    65.9    84.6  106.1  177.6  262.8  184.8   273.2
</TABLE>
- --------
(1) Horton changed fiscal years in 1993. As a result, the 1993 fiscal year only
    contains nine months of operations.
(2) Basic net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year.
(3) Diluted net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year, adjusted for the
    effects of dilutive securities.
(4) Represents homes placed under contract during the period, net of
    cancellations.
(5) Represents homes under contract but not yet closed at the end of the
    period.
(6) For purposes of computing the ratio of earnings to fixed charges, earnings
    consist of the sum of income from continuing operations before income
    taxes, interest amortized to cost of sales and interest expense. Fixed
    charges consist of interest incurred, whether expensed or capitalized,
    including amortization of debt issuance costs, if applicable.
(7) The net income per share amounts prior to December 31, 1997, have been
    restated as required to comply with FAS 128, Earnings Per Share. For a
    further discussion of net income per share, see the notes to the Unaudited
    Pro Forma Condensed Combined Financial Statements.
 
                                       16
<PAGE>
 
                       SELECTED HISTORICAL FINANCIAL DATA
                (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
 
CONTINENTAL
 
<TABLE>   
<CAPTION>
                                                                   FOR THE SIX
                                                                   MONTHS ENDED
                               FOR THE FISCAL YEARS ENDED MAY 31,  NOVEMBER 30,
                               ---------------------------------- --------------
                                1993   1994   1995   1996   1997   1996   1997
                               ------ ------ ------ ------ ------ ------ -------
<S>                            <C>    <C>    <C>    <C>    <C>    <C>    <C>
INCOME STATEMENT DATA:
 Revenues....................  $207.0 $348.6 $432.5 $600.6 $726.0 $367.5 $ 378.9
 Net income from continuing
  operations.................     7.1   13.1   13.8   25.8   29.4   17.0    15.6
 Net income from continuing
  operations per
  share(1)(2)(6)
 Basic.......................    1.38   2.11   1.99   3.71   4.24   2.44    2.22
 Diluted.....................    1.30   1.88   1.82   3.00   3.10   1.76    1.60
 Cash dividends per share....    0.20   0.20   0.20   0.20   0.20   0.10    0.10
 Weighted average number of
  shares outstanding
  (000's)(1)(2)(6)
 Basic.......................   5,144  6,203  6,948  6,960  6,938  6,991   6,858
 Diluted.....................   6,732  7,797  8,483  9,535 10,621 10,676  10,597
SELECTED OPERATING DATA:
 Number of homes closed......   1,769  2,831  3,202  4,367  4,904  2,513   2,763
 New sales orders, net
  (homes)(3).................   2,000  2,844  3,427  4,944  4,770  2,048   2,909
 New sales orders, net ($
  value)(3)..................  $228.3 $351.9 $441.3 $669.2 $640.6 $277.0 $ 400.1
 Sales backlog at end of
  period (homes)(4)..........     900  1,136  1,493  2,070  2,015  1,684   2,161
 Sales backlog at end of
  period ($ value)(4)........  $107.5 $147.2 $198.1 $295.5 $271.1 $240.1 $ 303.9
OTHER FINANCIAL DATA:
 Ratio of earnings to fixed
  charges(5).................    1.9x   2.4x   2.0x   2.9x   2.8x   3.3x    2.7x
<CAPTION>
                                                                      AS OF
                                         AS OF MAY 31,             NOVEMBER 30,
                               ---------------------------------- --------------
                                1993   1994   1995   1996   1997   1996   1997
                               ------ ------ ------ ------ ------ ------ -------
<S>                            <C>    <C>    <C>    <C>    <C>    <C>    <C>
BALANCE SHEET DATA:
 Inventories.................  $142.6 $205.4 $291.3 $344.9 $392.5 $405.2 $ 428.1
 Total assets................   187.5  305.5  386.8  438.4  508.3  496.6   544.4
 Notes payable...............   114.8  168.3  232.8  250.4  286.4  282.2   310.6
 Stockholders' equity........    51.6   98.6  110.5  128.9  154.9  143.6   169.6
</TABLE>    
- --------
(1) Basic net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year.
(2) Diluted net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year, adjusted for the
    effects of dilutive securities.
(3) Represents homes placed under contract during the period, net of
    cancellations.
(4) Represents homes under contract but not yet closed at the end of the
    period.
(5) For purposes of computing the ratio of earnings to fixed charges, earnings
    consist of the sum of income from continuing operations before income
    taxes, interest amortized to cost of sales and interest expense. Fixed
    charges consist of interest incurred, whether expensed or capitalized,
    including amortization of debt issuance costs, if applicable.
(6) The net income per share amounts prior to December 31, 1997, have been
    restated as required to comply with FAS 128, Earnings Per Share. For a
    further discussion of net income per share, see the notes to the Unaudited
    Pro Forma Condensed Combined Financial Statements.
 
                                       17
<PAGE>
 
              UNAUDITED SELECTED PRO FORMA COMBINED FINANCIAL DATA
                (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<TABLE>   
<CAPTION>
                                                                 FOR THE THREE
                                    FOR THE FISCAL YEARS ENDED   MONTHS ENDED
                                           SEPTEMBER 30,         DECEMBER 31,
                                    -------------------------------------------
                                     1995     1996    1997(10)  1996(10)  1997
                                    ------- --------- ------------------ ------
<S>                                 <C>     <C>       <C>       <C>      <C>
PRO FORMA COMBINED INCOME
 STATEMENT DATA(1):
Revenues..........................  $ 862.8 $ 1,136.2 $ 1,648.4  $393.7  $418.7
Net income from continuing
 operations.......................     34.4      53.2      65.6    16.4    18.3
Net income from continuing
 operations per share(2)(3)(9):
 Basic............................     0.80      1.15      1.29    0.34    0.35
 Diluted..........................     0.77      1.06      1.15    0.30    0.31
Cash dividends per share(4).......      --        --       0.06     --     0.02
Weighted average number of shares
 outstanding (000's)(2)(3)
 Basic............................   42,972    46,398    50,924  48,838  52,780
 Diluted..........................   46,935    52,873    60,041  57,745  62,760
PRO FORMA COMBINED SELECTED
 OPERATING DATA:
Number of homes closed............    5,676     7,651    10,605   2,505   2,821
New sales orders, net (homes)(5)..    5,980     8,432    11,163   2,169   2,880
New sales orders, net ($
 value)(5)........................  $ 890.6 $ 1,254.7 $ 1,679.3  $332.4  $445.2
Sales backlog at end of period
 (homes)(6).......................    2,493     3,274     3,961   3,065   4,020
Sales backlog at end of period ($
 value)(6)........................  $ 368.8 $   504.4 $   609.2  $490.1  $636.1
PRO FORMA COMBINED OTHER FINANCIAL
 DATA:
Ratio of earnings to fixed
 charges(7).......................     2.5x      3.2x      2.8x    3.0x    2.7x
</TABLE>    
 
<TABLE>
<CAPTION>
                                                                       AS OF
                                                                    DECEMBER 31,
                                                                        1997
                                                                    ------------
<S>                                                                 <C>
PRO FORMA COMBINED BALANCE SHEET DATA(1):
Inventory..........................................................   $1,089.1
Total assets.......................................................    1,312.5
Notes payable......................................................      711.6
Stockholders' equity...............................................      445.6
Book value per common share(8)(9)..................................       8.44
</TABLE>
- --------
(1) It is estimated that direct costs of the Merger, consisting primarily of
    transaction costs for investment bankers' fees, attorneys' and accountants'
    fees, and financial printing and other related charges, approximating $12.0
    million, will be incurred. Such expenses will be deferred when incurred and
    charged to expense upon consummation of the Merger. They are not recorded
    in the pro forma combined financial data.
(2) Basic net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year.
(3) Diluted net income per share is based upon the weighted average number of
    shares of common stock outstanding during each year, adjusted for the
    effects of dilutive securities.
(4) The pro forma combined cash dividends per share are not necessarily
    indicative of dividends to be paid in future periods. It is the current
    intention of the Horton Board to declare quarterly cash dividends following
    the Merger initially in the amount of $.0225 per share of Horton Common
    Stock. Future dividends will be determined by the Horton Board in light of
    the earnings and financial condition of Horton and its subsidiaries and
    other factors.
(5) Represents homes placed under contract during the period, net of
    cancellations.
(6) Represents homes under contract but not yet closed at the end of the
    period.
(7) For purposes of computing the ratio of earnings to fixed charges, earnings
    consist of the sum of income from continuing operations before income
    taxes, interest amortized to cost of sales and interest expense. Fixed
    charges consist of interest incurred, whether expensed or capitalized,
    including amortization of debt issuance costs, if applicable.
(8) Pro forma combined book value per share is computed by dividing pro forma
    stockholders' equity by the number of common shares outstanding at the end
    of the period.
   
(9) The pro forma combined per share information is computed by combining pro
    forma financial data for Horton and Continental and dividing by the pro
    forma Horton shares projected to be outstanding after the Merger, assuming
    that 2.25 shares of Horton Common Stock are exchanged for each share of
    Continental Common Stock outstanding. If the Exchange Ratio were the
    highest to which Horton is potentially obligated under the Merger Agreement
    such that 2.759 of shares of Horton Common Stock were exchanged for each
    share of Continental, the per share information presented above would be
    affected as follows:     
 
<TABLE>
<CAPTION>
                                                 FOR THE FISCAL   FOR THE THREE
                                                   YEARS ENDED    MONTHS ENDED
                                                  SEPTEMBER 30,   DECEMBER 31,
                                                ----------------- -------------
                                                1995  1996  1997   1996   1997
                                                ----- ----- ----- ------ ------
<S>                                             <C>   <C>   <C>   <C>    <C>
  Net income from continuing operations per
   share:
  Basic........................................ $0.74 $1.06 $1.20 $ 0.31 $ 0.33
  Diluted......................................  0.70  0.97  1.06   0.27   0.28
</TABLE>
 
<TABLE>
<CAPTION>
                                                                     AS OF
                                                               DECEMBER 31, 1997
                                                               -----------------
<S>                                                            <C>
  Book value per common share.................................       $7.92
</TABLE>
 
(10) The pro forma Combined Income Statement Data for the year ended September
     30, 1997, and the three months ended December 31, 1996, contain the
     results of operations of Torrey prior to acquisition. See "UNAUDITED PRO
     FORMA CONDENSED COMBINED FINANCIAL STATEMENTS."
 
                                       18
<PAGE>
 
                           COMPARATIVE PER SHARE DATA
 
  The following table sets forth certain historical per share data of Horton
and Continental and combined per share data on an unaudited pro forma basis
after giving effect to the Merger as if it had occurred on October 1, 1994, on
a pooling of interests basis assuming that 2.25 shares of Horton Common Stock
were issued in exchange for each share of Continental Common Stock outstanding.
This data should be read in conjunction with the selected historical audited
and unaudited financial data and the historical audited and unaudited financial
statements of Horton and Continental and the notes thereto that are
incorporated herein by reference. The selected pro forma combined financial
information of Horton and Continental is derived from the unaudited pro forma
condensed combined financial statements and should be read in conjunction with
such unaudited pro forma statements and notes thereto included elsewhere is
this Joint Proxy Statement/Prospectus. The unaudited pro forma information is
presented for illustrative purposes only and is not necessarily indicative of
the combined financial position or results of operations of future periods or
the results that actually would have been realized had Horton and Continental
been a single entity during the periods presented.
 
<TABLE>
<CAPTION>
                                                           AS OF AND FOR THE
                                   AS OF AND FOR THE YEARS    THREE MONTHS
                                     ENDED SEPTEMBER 30,   ENDED DECEMBER 31,
                                   ----------------------- ------------------
                                    1995    1996    1997    1996   1997
                                   ------- ------- ------- ------ -------
<S>                                <C>     <C>     <C>     <C>    <C>   
HORTON
HISTORICAL PER SHARE:
 Net income from continuing
  operations(2)(3):
 Basic...........................  $  0.75 $  0.89 $  1.03 $ 0.21 $ 0.29
 Diluted.........................     0.74    0.87    1.01   0.21   0.28
 Cash dividends..................      --      --     0.06    --    0.02
 Book value......................     3.86    5.49    7.04   5.70   7.31
PRO FORMA COMBINED--PER HORTON
 SHARE:
 Net income from continuing
  operations(2)(3)(5)(6):
 Basic...........................     0.80    1.15    1.29   0.34   0.35
 Diluted.........................     0.77    1.06    1.15   0.30   0.31
 Cash dividends..................      --      --     0.06    --    0.02
 Book value......................     5.03    6.37    8.11   6.98   8.44
CONTINENTAL
HISTORICAL PER SHARE:
 Net income from continuing
  operations(2)(3):
 Basic...........................     1.99    3.71    4.22   1.24   1.09
 Diluted.........................     1.82    3.00    3.08   0.89   0.79
 Cash dividends..................     0.20    0.20    0.20   0.05   0.05
 Book value......................    15.95   18.44   24.07  21.21  25.11
PRO FORMA COMBINED--PER
 EQUIVALENT CONTINENTAL SHARE(4):
 Net income from continuing
  operations(2)(3)(5)(6):
 Basic...........................     1.80    2.59    2.90   0.77   0.79
 Diluted.........................     1.73    2.38    2.59   0.68   0.70
 Cash dividends..................      --      --     0.14    --    0.05
 Book value......................    11.32   14.33   18.25  15.71  18.99
</TABLE>
- --------
(1) It is estimated that direct costs of the Merger, consisting primarily of
    transaction costs for investment bankers' fees, attorneys' and accountants'
    fees, and financial printing and other related charges, approximating $12.0
    million, will be incurred. Such expenses will be deferred when incurred and
    charged to expense upon consummation of the Merger. They are not recorded
    in the pro forma combined financial data.
(2) The pro forma combined per share data combines financial information of
    Horton for each of the fiscal years ended September 30, 1995, 1996 and
    1997, and each of the three months ended December 31, 1996 and 1997, with
    the financial information of Continental
 
                                       19
<PAGE>
 
   for each of the fiscal years ended May 31, 1995 and 1996, the twelve months
   ended September 30, 1997, and each of the three months ended December 31,
   1996 and 1997, respectively. Horton has a fiscal year ending September 30,
   and Continental has a fiscal year ending May 31. Accordingly, the pro forma
   combined per share data for the year ended September 30, 1997 and each of
   the three months ended December 31, 1996 and 1997, include Continental's
   financial information conformed to Horton's fiscal year end.
(3) Historical Book Value Per Common Share is computed by dividing
    stockholders' equity for Horton and Continental by the number of shares of
    common stock outstanding at the end of each period for Horton and
    Continental, respectively. Pro Forma Book Value Per Common Share for
    Horton is computed by dividing pro forma stockholders' equity by the pro
    forma number of shares of common stock outstanding at the end of the
    period.
(4) Pro forma combined per share information for Continental is computed by
    multiplying Horton's pro forma per share information by 2.25, the assumed
    Exchange Ratio.
   
(5) The pro forma combined per share information for Horton is computed by
    combining pro forma financial data for Horton and Continental and dividing
    by the pro forma Horton shares projected to be outstanding after the
    Merger, assuming that 2.25 shares of Horton Common Stock are exchanged for
    each share of Continental Common Stock outstanding. If the Exchange Ratio
    were the highest to which Horton is potentially obligated under the Merger
    Agreement such that 2.759 of shares of Horton Common Stock were exchanged
    for each share of Continental, the per share information presented above
    would be affected as follows:     
 
<TABLE>
<CAPTION>
                                         AS OF AND FOR THE    AS OF AND FOR THE
                                               YEARS            THREE MONTHS
                                        ENDED SEPTEMBER 30,  ENDED DECEMBER 31,
                                        -------------------- -------------------
                                         1995   1996   1997    1996      1997
                                        ------ ------ ------ --------- ---------
   <S>                                  <C>    <C>    <C>    <C>       <C>
   PRO FORMA COMBINED - PER HORTON
    SHARE:
    Net income from continuing opera-
     tions:
    Basic.............................  $ 0.74 $ 1.06 $ 1.20 $    0.31 $    0.33
    Diluted...........................    0.70   0.97   1.06      0.27      0.28
    Book value........................    4.65   5.94   7.61      6.51      7.92
   PRO FORMA COMBINED - PER EQUIVALENT
    CONTINENTAL SHARE:
    Net income from continuing opera-
     tions:
    Basic.............................    2.04   2.92   3.31      0.86      0.91
    Diluted...........................    1.93   2.68   2.92      0.74      0.77
    Book value........................   12.83  16.39  21.00     17.96     21.85
</TABLE>
 
(6) The pro forma combined per share data for the year ended September 30,
    1997, and the three months ended December 31, 1996, contain the results of
    operations of Torrey prior to acquisition. See "UNAUDITED PRO FORMA
    CONDENSED COMBINED FINANCIAL STATEMENTS."
 
                                      20
<PAGE>
 
                    COMPARATIVE MARKET PRICES AND DIVIDENDS
 
  Horton Common Stock is listed on the NYSE under the symbol DHI. Continental
Common Stock is listed on the NYSE under the symbol CON. The table below sets
forth, for the calendar quarters indicated, the high and low sales prices of
Horton Common Stock and Continental Common Stock as reported for NYSE Composite
Transactions, in each case based on published financial sources, and the
dividends paid on such stock. Horton Common Stock market prices have been
adjusted for Horton's 9% stock dividend of June 1995, seven-for-five stock
split of September 1995 and 8% stock dividend of May 1996.
 
<TABLE>   
<CAPTION>
                                        HORTON                CONTINENTAL
                                     COMMON STOCK            COMMON STOCK
                                ----------------------- -----------------------
                                 HIGH   LOW   DIVIDENDS  HIGH   LOW   DIVIDENDS
                                ------ ------ --------- ------ ------ ---------
<S>                             <C>    <C>    <C>       <C>    <C>    <C>
1995:
  Quarter Ended March 31....... $ 6.30 $ 5.31      --   $14.13 $11.00   $0.05
  Quarter Ended June 30........   8.93   5.61      --    17.88  11.50    0.05
  Quarter Ended September 30...  10.50   8.52      --    22.63  16.63    0.05
  Quarter Ended December 31....  11.00   8.91      --    24.88  17.75    0.05
1996:
  Quarter Ended March 31....... $11.92 $ 8.91      --   $25.25 $19.75   $0.05
  Quarter Ended June 30........  10.75   8.63      --    26.00  20.00    0.05
  Quarter Ended September 30...  10.38   7.50      --    21.63  17.13    0.05
  Quarter Ended December 31....  11.38   8.63      --    21.38  16.00    0.05
1997:
  Quarter Ended March 31....... $13.00 $10.13  $  0.02  $22.13 $16.38   $0.05
  Quarter Ended June 30........  12.50   9.00     0.02   18.50  15.38    0.05
  Quarter Ended September 30...  17.25  10.19     0.02   29.44  17.63    0.05
  Quarter Ended December 31....  21.00  15.00     0.02   40.63  28.63    0.05
1998
  First Quarter (through March
   5, 1998).................... $23.63 $16.56  $0.0225  $48.63 $39.06   $0.05
</TABLE>    
   
  On December 18, 1997, the last full trading day preceding public announcement
of the proposed Merger, the closing price per share of Horton Common Stock as
reported for NYSE Composite Transactions was $19.25 and the closing price per
share of Continental Common Stock as reported for NYSE Composite Transactions
was $35.06. On March 5, 1998, the closing price per share of Horton Common
Stock as reported for NYSE Composite Transactions was $23.06, and the closing
price per share of Continental Common Stock as reported for NYSE Composite
Transactions was $48.13. See "COMPARATIVE PER SHARE PRICES AND DIVIDENDS."     
   
  The equivalent pro forma value of one share of Continental Common Stock on
December 18, 1997 and March 5, 1998, calculated by multiplying the closing
price of one share of Horton Common Stock on the dates listed above by the
Exchange Ratio that would have been in effect if the Merger had been
consummated and the Stock Value equaled the closing price per share of the
Horton Common Stock on such dates, is $44.50 and $51.89, respectively.     
 
  Horton and Continental stockholders are urged to obtain current market
quotations for the Horton Common Stock and Continental Common Stock prior to
making any decision with respect to the Horton Proposal and Continental
Proposal, respectively.
 
  Horton has paid a quarterly cash dividend to holders of Horton Common Stock
since February 1997. However, the payment of future dividends on Horton Common
Stock, if any, will be a business decision to be made by the Horton Board from
time to time based upon the results of operations and financial condition of
Horton and such other factors as the Horton Board considers relevant. See
"COMPARATIVE PER SHARE PRICES AND DIVIDENDS--Post-Merger Dividend Policy."
 
                                       21
<PAGE>
 
                                 RISK FACTORS
 
  The following risk factors should be considered by Horton stockholders and
Continental stockholders in evaluating whether to approve the Horton Proposal
and the Continental Proposal, respectively. These factors should be considered
in conjunction with the other information included and incorporated by
reference in this Joint Proxy Statement/Prospectus. See "CAUTIONARY STATEMENT
CONCERNING FORWARD-LOOKING STATEMENTS."
 
  General Real Estate, Economic and Other Conditions. The homebuilding
industry is cyclical and is significantly affected by changes in general and
local economic conditions, such as employment levels, availability of
financing for homebuyers, interest rates, consumer confidence and housing
demand. In addition, homebuilders are subject to various risks, including
competitive overbuilding, availability and cost of building lots, materials
and labor, weather conditions, delays in construction schedules, cost
overruns, changes in governmental regulation and increases in real estate
taxes and other local government fees. Moreover, homebuilders are subject to
the risks associated with natural disasters such as hurricanes, earthquakes
and fires. Horton, Continental and their competitors also are impacted by
comprehensive local, state and Federal statutes and rules regulating
environmental matters, zoning, building design and density requirements, as
they affect the availability and cost of building lots and the timing of
homebuilding activities.
 
  Interest Rates; Mortgage Financing. Virtually all purchasers of Horton's and
Continental's homes finance their acquisitions through lenders providing
mortgage financing. In general, housing demand is adversely affected by
increases in interest rates, decreasing availability of mortgage financing,
increasing housing costs and unemployment. If mortgage interest rates increase
and the ability of prospective buyers to finance home purchases is adversely
affected, operating results may be negatively impacted. Horton's and
Continental's homebuilding activities also are dependent upon the availability
and cost of mortgage financing for buyers of homes owned by potential
customers so those customers can sell their existing homes and purchase a home
from Horton or Continental. In addition, Horton and Continental believe that
the availability of Federal Housing Administration and Veterans Administration
mortgage financing is an important factor in marketing many of the homes of
Horton and Continental. Any limitations or restrictions on the availability of
such financing could adversely affect Horton's or Continental's sales.
 
  Competition. The homebuilding industry is highly competitive and fragmented.
Homebuilders compete not only for homebuyers, but also for desirable
properties, financing, raw materials and skilled labor. Horton and Continental
compete with other local, regional and national homebuilders, often within
larger subdivisions designed, planned and developed by such homebuilders. Some
of Horton's and Continental's competitors have longer operating histories and
greater financial, marketing and sales resources.
 
  Future Capital Requirements. The operations of Horton and Continental
require significant amounts of cash, and Horton will be required to seek
additional capital for the future growth and development of its business.
There can be no assurance as to the terms or availabilities of such additional
capital. If Horton is not successful in obtaining sufficient capital, it could
result in a reduction in sales and may adversely affect Horton's future growth
and results of operations.
 
  No Assurance of Successful Acquisitions. From July 1993 through the present,
Horton and Continental have each acquired several homebuilding companies. In
the future, Horton intends to acquire additional homebuilding companies.
Subsequent to the acquisitions, the previous owners of the acquired companies
normally have continued to manage their operations as subsidiaries or
divisions of the acquiring company. There can be no assurance that Horton will
continue to be able to successfully integrate the operations of its
acquisitions of homebuilding companies, including Continental, and realize the
earnings enhancements that may be available. In addition, there can be no
assurance that Horton will be able to implement successfully its operating and
growth strategies in each of its markets. Finally, there can be no assurance
that the pace of Horton's acquisitions will not adversely affect Horton's
efforts to integrate acquisitions and manage the acquired companies
profitably.
 
                                      22
<PAGE>
 
   
  Potential Impact of Certain Large Stockholdings. Donald R. Horton and other
affiliates of Horton own, directly or indirectly, approximately 39% of Horton
Common Stock. Accordingly, such persons may effectively be able to elect the
entire Board of Directors of Horton and control its management, operations and
affairs. However, after giving effect to the Merger, and assuming the Merger
had been consummated on March 6, 1998 at the Assumed Exchange Ratio of 2.25,
the ownership of the Mr. Horton and such affiliates would have been reduced to
23.7% of the outstanding Horton Common Stock (assuming conversion of the
Continental Convertible Notes).     
 
  Uncertainty as to Market Price of Horton Common Stock. Because the number of
shares of Horton Common Stock to be issued in the Merger will depend upon the
actual Stock Value, and because the market price of Horton Common Stock is
subject to fluctuation, the market value of the shares of Horton Common Stock
that holders of Continental Common Stock may receive in the Merger may
increase or decrease prior to and following the Merger. There can be no
assurance that at or after the Effective Time the shares of Horton Common
Stock will trade at or near the prices upon which the Exchange Ratio is based
or the prices at which such shares have traded in the past. The prices at
which shares of Horton Common Stock trade may be influenced by many factors,
including the liquidity of Horton Common Stock, the impact of the Horton
Common Stock issued in the Merger, or upon conversion of the Continental
Convertible Notes assumed in the Merger, investor perceptions of Horton and
the homebuilding industry, Horton's operating results, Horton's dividend
policy and general economic and market conditions. See "COMPARATIVE PER SHARE
PRICES AND DIVIDENDS."
   
  Uncertainty as to Number of Shares of Horton Common Stock Issued in Merger.
The number of shares of Horton Common Stock to be issued in the Merger will
depend upon the actual Stock Value and resulting Exchange Ratio. At the
Assumed Exchange Ratio of 2.25, the Continental stockholders would receive in
the aggregate approximately 39% of the shares of Horton Common Stock
outstanding immediately after the Merger (assuming conversion of the
Continental Convertible Notes). However, at the highest Exchange Ratios, the
Continental Stockholders would receive a larger percentage of the outstanding
shares of Horton Common Stock. This percentage could be as much as 44% if the
Exchange Ratio were 2.759, the highest Exchange Ratio to which Horton is
potentially obligated under the Merger Agreement. See "THE MERGER AGREEMENT--
Merger Consideration."     
   
  Potential Antitakeover Effects of Preferred Stock and Certain Charter and
Bylaw Provisions. Horton is authorized to issue up to 30,000,000 shares of
Preferred Stock in one or more series, the terms of which may be determined at
the time of issuance by the Horton Board, without further action by the Horton
stockholders, and may include voting rights, preferences as to dividends and
liquidation, conversion and redemptive rights and sinking fund provisions.
Although Horton currently has no plans to issue any shares of Preferred Stock,
the issuance of Preferred Stock in the future could affect the rights of the
holders of the Horton Common Stock. In particular, specific rights granted to
future holders of Preferred Stock could be used to restrict Horton's ability
to merge with or sell its assets to a third party, or otherwise delay,
discourage, or prevent a change in control of Horton. In addition, certain
provisions in Horton's charter and bylaws prohibiting stockholder action by
written consent, increasing the vote required to remove directors, limiting
the persons who may call special meetings of stockholders and providing time
limitations for stockholder nominations for director and other stockholder
proposals could delay, discourage, or prevent a change in control of Horton.
SEE "DESCRIPTION OF HORTON CAPITAL STOCK."     
 
                                      23
<PAGE>
 
                             THE SPECIAL MEETINGS
 
  This Joint Proxy Statement/Prospectus is furnished in connection with the
solicitation of proxies (i) from the holders of Horton Common Stock by the
Horton Board for use at the Horton Stockholders Meeting and (ii) from the
holders of Continental Common Stock by the Continental Board for use at the
Continental Stockholders Meeting.
 
TIMES AND PLACES; PURPOSES
   
  Horton. The Horton Stockholders Meeting will be held at the principal
executive offices of Horton, 1901 Ascension Boulevard, Suite 100, Arlington,
Texas 76006, on April 10, 1998, starting at 10:00 a.m., local time. At the
Horton Stockholders Meeting, the stockholders of Horton will be asked to
consider and vote upon the Horton Proposal. A copy of the Merger Agreement is
included as Appendix A to this Joint Proxy Statement/Prospectus.     
   
  Continental. The Continental Stockholders Meeting will be held at the
executive offices of Continental, 7001 N. Scottsdale Road, Suite 2050,
Scottsdale, Arizona 85253, on April 10, 1998, starting at 9:00 a.m., local
time. At the Continental Stockholders Meeting, the stockholders of Continental
will be asked to consider and vote upon the Continental Proposal. A copy of
the Merger Agreement is included as Appendix A to this Joint Proxy
Statement/Prospectus.     
 
VOTING RIGHTS; VOTES REQUIRED FOR APPROVAL
   
  Horton. The Horton Board has fixed the close of business on February 23,
1998, as the Horton Record Date. Only holders of record of shares of Horton
Common Stock on the Horton Record Date are entitled to notice of and to vote
at the Horton Stockholders Meeting and any adjournments or postponements
thereof. As of the Horton Record Date, there were 37,391,761 shares of Horton
Common Stock outstanding and entitled to vote at the Horton Stockholders
Meeting, held by approximately 223 stockholders of record.     
 
  Each holder of record, as of the Horton Record Date, of Horton Common Stock
is entitled to one vote per share of Horton Common Stock. The presence, in
person or by proxy, of the holders of a majority of the outstanding shares of
Horton Common Stock entitled to vote is necessary to constitute a quorum at
the Horton Stockholders Meeting.
 
  Under the DGCL and the Horton Bylaws, the affirmative vote, in person or by
proxy, of holders of a majority of the shares of Horton Common Stock
outstanding on the Horton Record Date is required to adopt and approve the
Horton Proposal.
   
  As of the Horton Record Date, directors and executive officers of Horton and
their respective affiliates as a group beneficially owned 14,484,681 shares of
Horton Common Stock, or approximately 39% of the outstanding shares of Horton
Common Stock. Such directors and executive officers have advised that they
intend to vote for the Horton Proposal.     
 
  If fewer shares of Horton Common Stock are voted in favor of the Horton
Proposal than the number required for approval, it is expected that the Horton
Stockholders Meeting will be postponed or adjourned for the purpose of
allowing additional time for soliciting and obtaining additional proxies or
votes, and, at any subsequent reconvening of the Horton Stockholders Meeting,
all proxies will be voted in the same manner as such proxies would have been
voted at the original convening of the Horton Stockholders Meeting, except for
any proxies that have theretofore effectively been revoked or withdrawn.
   
  Continental. The Continental Board has fixed the close of business on
February 23, 1998, as the Continental Record Date. Only holders of record of
shares of Continental Common Stock on the Continental Record Date are entitled
to notice of and to vote at the Continental Stockholders Meeting and any
adjournments or postponements thereof. On the Continental Record Date, there
were 6,867,764 shares of Continental Common Stock outstanding and entitled to
vote at the Continental Stockholders Meeting, held by approximately 95
stockholders of record.     
 
                                      24
<PAGE>
 
  Each holder of record, as of the Continental Record Date, of Continental
Common Stock is entitled to one vote per share of Continental Common Stock.
The presence, in person or by proxy, of the holders of a majority of the
outstanding shares of Continental Common Stock is necessary to constitute a
quorum at the Continental Stockholders Meeting.
 
  Under the DGCL and the Continental Bylaws, the affirmative vote, in person
or by proxy, of the holders of a majority of the shares of Continental Common
Stock outstanding on the Continental Record Date is required to adopt and
approve the Continental Proposal.
   
  As of the Continental Record Date, directors and executive officers of
Continental and their respective affiliates as a group beneficially owned
102,095 shares of Continental Common Stock, or approximately 1.5% of the
shares of the outstanding Continental Common Stock. Such directors and
executive officers have advised that they intend to vote for the Continental
Proposal.     
 
  If fewer shares of Continental Common Stock are voted in favor of the
Continental Proposal than the number required for approval, it is expected
that the Continental Stockholders Meeting will be postponed or adjourned for
the purpose of allowing additional time for soliciting and obtaining
additional proxies or votes, and, at any subsequent reconvening of the
Continental Stockholders Meeting, all proxies will be voted in the same manner
as such proxies would have been voted at the original convening of the
Continental Stockholders Meeting, except for any proxies that have theretofore
effectively been revoked or withdrawn.
 
PROXIES
 
  Horton. All shares of Horton Common Stock represented by properly executed
proxies received prior to or at the Horton Stockholders Meeting and not
revoked will be voted in accordance with the instructions indicated in such
proxies. If no instructions are indicated on a properly executed returned
proxy, such proxy will be voted "FOR" the Horton Proposal. A properly executed
proxy marked "ABSTAIN," although counted for purposes of determining whether
there is a quorum, will not be voted. In accordance with NYSE rules, brokers
and nominees are precluded from exercising their voting discretion on the
Horton Proposal and thus, absent specific instructions from the beneficial
owner of such shares, are not empowered to vote shares of Horton Common Stock
held by them on the Horton Proposal. Therefore, because the affirmative vote
of a majority of the shares of Horton Common Stock outstanding on the Horton
Record Date is required for approval of the Horton Proposal, a proxy marked
"ABSTAIN," or a broker non-vote, will have the effect of a vote against the
Horton Proposal. Shares represented by broker non-votes will, however, be
counted for purposes of determining whether there is a quorum at the Horton
Stockholders Meeting.
 
  Continental. All shares of Continental Common Stock represented by properly
executed proxies received prior to or at the Continental Stockholders Meeting
and not revoked will be voted in accordance with the instructions indicated in
such proxies. If no instructions are indicated on a properly executed returned
proxy, such proxy will be voted "FOR" the Continental Proposal. A properly
executed proxy marked "ABSTAIN," although counted for purposes of determining
whether there is a quorum, will not be voted. In accordance with NYSE rules,
brokers and nominees are precluded from exercising their voting discretion on
the Continental Proposal and thus, absent specific instructions from the
beneficial owner of such shares, are not empowered to vote such shares of the
Continental Proposal. Therefore, because the affirmative vote of a majority of
the shares of Continental Common Stock outstanding on the Continental Record
Date is required for approval of the Continental Proposal, a proxy marked
"ABSTAIN," or a broker non-vote, will have the effect of a vote against the
Continental Proposal. Shares represented by broker non-votes will, however, be
counted for purposes of determining whether there is a quorum at the
Continental Stockholders Meeting.
 
  General. It is not expected that any matter not referred to herein will be
presented for action at either of the Special Meetings. If any other matters
are properly brought before the Horton Stockholders Meeting or the Continental
Stockholders Meeting and any adjournments or postponements thereof, the
persons named in the proxies will have discretion to vote on such matters in
accordance with their best judgment. The grant of a proxy
 
                                      25
<PAGE>
 
will also confer discretionary authority on the persons named in the proxy as
proxy appointees to vote in accordance with their best judgment on matters
incident to the conduct of the Special Meetings, including (except as stated
in the following sentence) postponement or adjournment for the purpose of
soliciting additional votes. However, shares represented by proxies that have
been voted "AGAINST" the Horton Proposal or the Continental Proposal, as the
case may be, will not be used to vote "FOR" postponement or adjournment of the
Horton Stockholders Meeting or the Continental Stockholders Meeting, as the
case may be, for the purpose of allowing additional time for soliciting
additional votes "FOR" the Horton Proposal or the Continental Proposal, as the
case may be.
 
  A Horton or a Continental stockholder may revoke his proxy at any time prior
to its use by delivering to the General Counsel of Horton or the Secretary of
Continental, as the case may be, a signed notice of revocation or a later
dated signed proxy or by attending the Horton Stockholders Meeting or the
Continental Stockholders Meeting, as the case may be, and voting in person.
Attendance at the Horton Stockholders Meeting or the Continental Stockholders
Meeting will not in itself constitute the revocation of a proxy.
 
  TO FACILITATE THE VOTING PROCESS FOR THE SPECIAL MEETINGS, STOCKHOLDERS OF
HORTON WILL BE ABLE TO SUBMIT THEIR PROXIES AND REVOKE THEIR PROXIES BY
FACSIMILE BY THE STATED TIME OF THE HORTON STOCKHOLDERS MEETING AT THE
FOLLOWING TELEPHONE NUMBER: (817) 856-8259. STOCKHOLDERS OF CONTINENTAL WILL
BE ABLE TO SUBMIT THEIR PROXIES AND REVOKE THEIR PROXIES BY FACSIMILE BY THE
STATED TIME OF THE CONTINENTAL STOCKHOLDERS MEETING AT THE FOLLOWING TELEPHONE
NUMBER: (602) 483-8237.
 
  Horton and Continental will each bear their own costs of mailing this Joint
Proxy Statement/Prospectus. The cost of solicitation of proxies will be paid
by Horton for the Horton proxies and by Continental for the Continental
proxies. In addition to solicitation by mail, proxies may be solicited in
person by directors, officers and employees of Horton or Continental, as the
case may be, without additional compensation, and by telephone, telegram,
facsimile or similar method. Arrangements will be made with brokerage houses
and other custodians, nominees and fiduciaries to send proxy material to
beneficial owners; and Horton and Continental, as the case may be, will, upon
request, reimburse them for their reasonable expenses in so doing. To the
extent necessary in order to ensure sufficient representation at the Horton
Stockholders Meeting and the Continental Stockholders Meeting, Horton or
Continental, respectively, may request by telephone or telegram the return of
proxies. The extent to which this will be necessary depends entirely upon how
promptly proxies are returned.
   
  If the Stock Value is less than $12.69, Continental may terminate the Merger
Agreement unless Horton elects to have the Exchange Ratio equal the quotient
obtained by dividing $35.00 by the Stock Value. Horton is not obligated to
make such election, and it currently believes that it would not do so. The
Horton Board, however, would meet to consider all the facts and circumstances
then existing, were such event to occur, and use its best judgment to
determine whether or not to seek to proceed with the Merger. If Horton were to
seek to proceed with the Merger, Horton and Continental would provide their
stockholders with appropriately revised disclosures and recirculate proxies.
    
  CONTINENTAL STOCKHOLDERS SHOULD NOT SEND ANY CERTIFICATES REPRESENTING
CONTINENTAL COMMON STOCK WITH THE ENCLOSED PROXY CARD. A LETTER OF TRANSMITTAL
WILL BE MAILED AFTER THE EFFECTIVE TIME TO EACH PERSON WHO IS A RECORD HOLDER
OF OUTSTANDING CONTINENTAL COMMON STOCK AND, UPON REQUEST TO THE EXCHANGE
AGENT, TO EACH PERSON WHO BECOMES A HOLDER OR BENEFICIAL OWNER OF CONTINENTAL
COMMON STOCK PRIOR TO THE EFFECTIVE TIME. CONTINENTAL STOCKHOLDERS SHOULD SEND
CERTIFICATES REPRESENTING CONTINENTAL COMMON STOCK TO THE EXCHANGE AGENT ONLY
AFTER THEY RECEIVE, AND ONLY IN ACCORDANCE WITH, THE INSTRUCTIONS CONTAINED IN
THE LETTER OF TRANSMITTAL.
 
                                      26
<PAGE>
 
                                  THE MERGER
 
BACKGROUND OF THE MERGER
 
  In June 1996, Donald R. Horton, Chairman, President and Chief Executive
Officer of Horton, and Richard Beckwitt, Executive Vice President and a
director of Horton, identified several homebuilding companies for a potential
strategic acquisition by Horton. After further financial and operational
analysis of various target companies, it was concluded that Continental was a
leading candidate for a strategic business combination.
 
  In July 1996, Mr. Horton contacted Donald R. Loback, former Chairman and
Chief Executive Officer of Continental, to discuss a possible acquisition of
Continental by Horton. No proposals for a business combination were made in
this conversation. Mr. Loback told Mr. Horton that he thought it would be in
the best interest of Continental for it to remain independent. Continental was
pursuing a strategy of growing in its primary markets as well as acquiring
local homebuilders in select markets in an effort to become a leading national
homebuilder with broad geographic coverage.
 
  In November 1996, Messrs. Horton and Beckwitt contacted a representative of
Salomon Smith Barney to discuss various strategic acquisition opportunities.
Mr. Horton reviewed his previous conversation with Mr. Loback and expressed
his interest in acquiring Continental. Salomon Smith Barney advised Messrs.
Horton and Beckwitt that Salomon Smith Barney had an investment banking
relationship with Continental and could not pursue such a transaction on
behalf of Horton. However, Salomon Smith Barney agreed to contact Mr. Loback
to express Horton's continued interest in pursuing a potential business
combination.
 
  In November 1996, Messrs. Horton and Beckwitt contacted a representative at
DLJ to discuss the potential acquisition of Continental. During November and
December 1996, DLJ performed preliminary financial and merger analyses of a
potential combination between Horton and Continental. DLJ had several
telephone conversations with Mr. Horton, Mr. Beckwitt and David J. Keller,
Executive Vice President, Chief Financial Officer and a director of Horton,
concerning the analyses.
 
  In December 1996, at the direction of Mr. Loback, Salomon Smith Barney
informed Messrs. Horton and Beckwitt that Mr. Loback continued to believe that
it was in the best interest of Continental for it to remain independent.
 
  Through the Summer of 1997, Horton continued to monitor the published
information concerning Continental's financial and operating performance.
Early in the Summer of 1997, Mr. Loback was contacted by the chief executive
officer of another major homebuilder regarding a possible combination with
Continental. Following a meeting with this homebuilder on July 16, 1997, Mr.
Loback decided not to proceed with further discussions.
 
  On July 21, 1997, Mr. Horton contacted Salomon Smith Barney to express
Horton's continued interest in a possible business combination with
Continental. Mr. Horton asked whether Mr. Loback would be amenable to a
meeting to discuss the benefits of such a transaction. In late July 1997, Mr.
Loback met with Salomon Smith Barney to discuss acquisition candidates which
had indicated an interest in being acquired by Continental. Salomon Smith
Barney informed Mr. Loback that Horton had expressed a strong interest in
Continental if Continental were to consider a business combination. Mr. Loback
instructed Salomon Smith Barney to explore the possibility of increasing
stockholder value through a combination with a larger homebuilder, including
Horton. Salomon Smith Barney thereafter contacted several national
homebuilders, including Horton, to determine their interest in a combination
with Continental. Following preliminary discussions, Mr. Loback decided to
continue discussions with Horton.
 
  Mr. Loback and representatives of Salomon Smith Barney met on August 8, 1997
with Messrs. Horton and Beckwitt and with Messrs. Horton, Beckwitt and Keller
and representatives of DLJ on August 13 and 14, 1997. In these meetings, the
participants discussed the outlook for both companies and the potential
benefits of a business combination. Horton proposed to enter into exclusive
negotiations to acquire Continental in a stock-for-
 
                                      27
<PAGE>
 
stock transaction at a fixed exchange ratio of 2.538 shares of Horton Common
Stock for each share of Continental Common Stock which, based on Horton's
closing stock price on August 14, 1997, represented a value of $33.79 for each
share of Continental Common Stock. The proposal was subject, among other
things, to a mutual due diligence investigation, satisfactory documentation
and Continental's agreement not to solicit other offers. Horton's proposal
included the right of the Continental Board to have one of its members elected
to the Horton Board. The proposal contemplated that the merger agreement would
contain customary provisions regarding Continental's ability to terminate the
agreement if necessary to satisfy the Continental Board's fiduciary
obligations, subject to payment of a $9,000,000 "break-up" fee. Mr. Loback
would agree to vote in favor of the acquisition, and grant Horton an option to
acquire his stock (then 8.2% of the outstanding Continental Common Stock) at
$33 per share. Horton also proposed that Mr. Loback enter into an employment
agreement with Horton at the time of the merger.
 
  In mid-August, 1997, Mr. Horton had several conversations with members of
the Horton Board concerning the proposed merger with Continental. On August
18, 1997, Horton signed an agreement with DLJ concerning its acting as
Horton's financial advisor in connection with the merger.
 
  On August 14, 1997, Mr. Loback met with four members of senior management
(including the other employee directors) to inform them of his discussions
with Horton. Mr. Loback indicated that Horton was ready to begin due diligence
on August 18, 1997, and that he intended to review Horton's proposal with the
other members of the Board at the next scheduled Board meeting on August 28,
1997. At the request of senior management, a Continental Board meeting was
scheduled for August 18, 1997. At the August 18, 1997, Continental Board
meeting, Mr. Loback and Salomon Smith Barney reviewed the Horton proposal with
the Continental Board. The Continental Board instructed Salomon Smith Barney
to inform Horton that it required additional time to determine how to proceed.
During the evening of August 18, 1997, Mr. Loback and a representative of
Salomon Smith Barney met with Messrs. Horton, Beckwitt and Keller and advised
them of the Continental Board's position. On August 19, 1997, Messrs. Horton,
Beckwitt and Keller met with members of senior management of Continental to
discuss the strategic rationale and the potential benefits of the merger as
well as the operating structure of a combined company. Following these
meetings, Messrs. Horton and Beckwitt informed Mr. Loback that Horton's
willingness to explore a possible combination was conditioned on management's
support for the transaction and requested a statement of management's position
not later than August 22, 1997.
 
  At a special Continental Board meeting held on August 20, 1997, the
Continental Board discussed Horton's proposal. Between August 21, 1997 and
August 28, 1997, Mr. Loback, Timothy C. Westfall, General Counsel and a
director of Continental, and Messrs. Horton and Beckwitt had several
discussions regarding how Continental wished to proceed with consideration of
a possible combination and the diligence Horton wished to conduct. During such
period neither Horton nor Continental made any additional substantive
proposals with regard to the terms of a combination.
 
  On August 28, 1997, after conversations among certain members of the Horton
Board, and consultation with DLJ, Horton delivered a letter to the Continental
Board confirming Horton's desire to resume discussions regarding a combination
and summarizing its proposal for a business combination. At its regularly
scheduled board meeting held the same date, the Continental Board took a vote
on whether to pursue the Horton proposal, and the vote was four to four. The
Continental Board determined to review possible ways to maximize stockholder
value, without soliciting other proposals, and to obtain the assistance of an
advisor who was not aware of the Horton proposal. At the direction of the
Continental Board, on August 29, 1997, Salomon Smith Barney informed Horton of
the Continental Board's decision to analyze and review available alternatives
and that this analysis was expected to take 30 days. The Continental Board
contacted Morgan Stanley and requested that it evaluate Continental's
strategic alternatives. Morgan Stanley agreed to assist Continental in
contemplation of the possibility of later being retained as a financial
advisor. Morgan Stanley subsequently performed an analysis of Continental's
available alternatives. Morgan Stanley performed its analysis without any
information regarding Continental's contacts with Horton and prior to its
retention by Continental on behalf of the Independent Directors.
 
                                      28
<PAGE>
 
  On September 29, 1997, after conversations among certain members of the
Horton Board, and consultation with DLJ, Horton delivered a letter to the
Continental Board expressing its continued interest in exploring a business
combination with Continental.
 
  Continental scheduled a board meeting to receive Morgan Stanley's report on
October 6, 1997. Morgan Stanley discussed its analysis by telephone with
certain Continental management and Board members on Friday, October 3, 1997.
Outside Board members Bradley S. Anderson, Peter D. O'Connor and Jo Ann Rudd
were not present for this discussion. Morgan Stanley's outline of alternatives
available to Continental included continuing its strategy of add-on
acquisitions, pursuing a merger of equals, and selling Continental to one of a
number of large capitalization, public homebuilders. Following this
discussion, Continental held a special meeting of its board in the late
afternoon. During discussions concerning the proposed merger, the meeting
concluded with Mr. Loback resigning as Chairman and Chief Executive Officer,
followed by non-employee directors Messrs. O'Connor and Steinberg resigning
from their positions on the Board. These directors had advocated, during
Continental Board discussions, pursuing negotiations with Horton on an
exclusive basis. No formal action was taken at the meeting.
 
  At special meetings held during the weekend on October 4 and 5, 1997, the
consensus of the Continental Board was that Mr. Anderson should become interim
non-executive Chairman of the Continental Board and Mr. Hickcox should become
Chief Executive Officer of Continental. The Continental Board also instructed
Salomon Smith Barney to assist it in exploring all strategic alternatives, and
canceled the Morgan Stanley presentation to the full Board which had been
scheduled for October 6, 1997. Prior to the opening of the markets on October
6, 1997, Continental issued a press release to announce the resignations and
the Continental Board's decision to explore all strategic alternatives. On
October 8, 1997, Continental filed a Form 8-K containing the resignation
letters of Messrs. Loback, O'Connor and Steinberg as well as the press
release.
 
  On October 13, 1997, Messrs. Anderson and Hickcox met with Messrs. Horton
and Beckwitt in Arlington, Texas, and informed them that Continental would
explore all strategic alternatives, including any proposal submitted by
Horton. Messrs. Horton and Beckwitt requested that Continental reconsider its
decision and proceed with Horton on an exclusive basis.
 
  On October 15, 1997, the Continental Board held a special meeting at which
Salomon Smith Barney reviewed with the Continental Board Continental's
strategic alternatives, including a sale of Continental, the acquisition by
Continental of other homebuilders, remaining independent, and a leveraged
buyout or a leveraged recapitalization. Salomon Smith Barney reviewed with the
Continental Board a list of potential parties who might have an interest in
acquiring all or part of Continental and discussed the timing and mechanics of
a solicitation process. The Continental Board authorized Salomon Smith Barney
to commence the solicitation process. The Continental Board also considered
various ways to retain key employees. After the meeting, Mr. Anderson informed
Mr. Beckwitt that Continental had decided to solicit indications of interest
in a business combination from all interested parties and invited Horton to
participate in the process. By letter dated October 16, 1997, Horton advised
the Continental Board that it had concluded that Continental did not want to
pursue serious discussions with Horton, and withdrew its proposal.
 
  On October 17, 1997, Continental sent a letter to Horton acknowledging its
decision to withdraw its proposal and informing Horton that it would receive
materials concerning Continental, including an invitation to submit a bid for
Continental.
 
  On October 22, 1997, a public information package concerning Continental and
a letter outlining procedures for submitting preliminary indications of
interest for a possible transaction were distributed to potential bidders.
Horton was included in the distribution.
 
  On October 27, 1997, the Continental Board held a special meeting during
which it discussed retaining a separate financial advisor to assist the
Independent Directors with advice concerning the alternatives available to
Continental. Since a majority of the Continental Board consisted of
Continental employees, the Independent
 
                                      29
<PAGE>
 
Directors wanted to obtain independent advice so as to be able to engage in
separate and independent deliberations regarding the alternatives available to
Continental. During a special Continental Board meeting held on October 31,
1997, the Continental Board agreed to retain Morgan Stanley to serve as
financial advisor to the Independent Directors and did so on the same day. The
Independent Directors determined to proceed with drafting employment
agreements to retain key employees and retained Watson, Wyatt & Company to
provide advice as to the scope and terms of such agreements.
 
  On November 4, 1997, at a special Continental Board meeting, Salomon Smith
Barney reviewed with the Continental Board the results of the initial
solicitation process in which approximately 39 parties, including 21 financial
buyers and 18 strategic buyers, were contacted and received information
packets. Salomon Smith Barney informed the Continental Board that written
indications of interest had been received from eight parties, two from
financial buyers and six from homebuilders. These indications of interest
included non-binding prices or ranges of prices based on the information made
available initially. Horton resubmitted its original proposal of 2.538 shares
of Horton Common Stock for each share of Continental Common Stock, which,
based on Horton's closing stock price on such date, represented a value of
$38.71 for each share of Continental Common Stock. One of the other bidders
submitted an indication of interest with a range that included prices higher
than Horton's. Salomon Smith Barney informed the Continental Board that Horton
had requested exclusivity and, after discussion, the Continental Board
determined to continue the solicitation process. Salomon Smith Barney then
reviewed with the Continental Board the other indications of interest. After
consultation with Salomon Smith Barney, five bidders, including Horton, were
selected to participate in a second round of the solicitation process. Morgan
Stanley advised the Independent Directors that this appeared to be a
reasonable way to proceed. All of these bidders, including Horton, entered
into confidentiality agreements, attended management presentations and were
provided the opportunity to complete their due diligence, including site
visits. The bidder who had submitted an indication of interest with a range
that included prices higher than Horton's orally informed Salomon Smith Barney
after its diligence that any bid submitted by it would be at the lower end of
the range, which was significantly below Horton's proposal.
 
  At the regularly scheduled meeting of the Horton Board on November 18, 1997,
the Horton Board reviewed the status of the Continental transaction.
 
  On November 25 and 26, 1997, Messrs. Horton, Beckwitt and Keller and DLJ
attended a presentation by Continental management about Continental's business
and discussed business strategies, operations, principal properties, financial
statements, capital budgets and related matters such as tax and accounting
issues. On November 26, 1997, Horton again requested exclusivity and informed
Continental and Salomon Smith Barney that its bid was likely to be lower in
the solicitation process than if it were able to negotiate an agreement on an
exclusive basis at that time.
 
  Following numerous discussions between Salomon Smith Barney and Horton and
DLJ, and among Continental's Board members, Salomon Smith Barney and Morgan
Stanley, by December 1, 1997, the consensus of the members of the Continental
Board was to commence negotiation of a merger agreement with Horton if
appropriate provisions could be agreed upon to protect Continental in the
event of a decline in Horton's stock price while continuing to allow
Continental's stockholders to participate if Horton's stock price increased.
Following additional discussions, the parties agreed by December 3, 1997 to
the Exchange Ratio described under "THE MERGER AGREEMENT--Merger
Consideration" and Continental agreed to reimburse Horton up to $250,000 of
its expenses if a merger agreement were not entered into after good faith
negotiations. Based on Horton's closing stock price on such date, Horton's
offer represented a value of $44.50 for each share of Continental Common
Stock. In addition, the parties agreed that the merger agreement would provide
Continental with two seats on Horton's board of directors so long as one
nominee was a non-employee director and would provide for a $12,000,000
"break-up" fee in the event Continental terminated the agreement pursuant to
the Continental Board's fiduciary obligations. Continental stated, however, it
would continue to comply with requests for information from the other
potential bidders and would inform other potential bidders that final bids
were due on December 22, 1997. Salomon Smith Barney advised the Continental
Board, and Morgan Stanley advised the Independent Directors, that these
actions appeared to be reasonable based upon the information then available.
 
                                      30
<PAGE>
 
  On December 4, 1997, Continental entered into a confidentiality agreement
with Horton to permit Continental to obtain non-public information relating to
Horton. On December 4 and 5, Messrs. Horton, Beckwitt and Keller met with
members of Continental management to discuss terms of the transaction and
certain other issues. On December 8, 1997, Horton's legal counsel distributed
a draft of the Merger Agreement to all of the parties for review and comment.
During the week of December 8, 1997, representatives of Horton and Continental
met and exchanged various information, and Horton and Continental and their
respective legal counsel and financial advisors performed due diligence.
 
  On December 8, 1997, the Horton Board met to review the status of the due
diligence investigation and review the proposed terms of the transaction.
 
  On December 10 and 11, 1997, members of Continental management attended a
presentation by Horton's management regarding Horton's business and discussed
business strategies, operations, principal properties, financial statements,
capital budgets and related matters such as tax and accounting issues. From
December 8 through December 18, 1997, representatives of Horton and
Continental and their respective advisors continued their diligence reviews
and negotiated the structure of the Merger and the provisions of the Merger
Agreement. Horton also had an opportunity to review Continental's proposed
employment agreements. The principal areas of negotiations included the
representations and warranties to be made by Horton and Continental,
employment and non-competition arrangements for certain Continental employees,
the conditions required for termination of the Merger Agreement, the
triggering events for the payment of a "break-up" fee and the payment of
expenses, the composition of the Horton board of directors after the Merger
and other issues related to the management of the combined operations.
   
  On December 16, 1997, the Continental Board met with Continental's senior
management and legal and financial advisors as well as the Independent
Directors' financial advisors to review the proposed Merger Agreement. Salomon
Smith Barney reviewed with the Continental Board the status of the
solicitation process, including the prospects for obtaining more favorable
bids. Legal counsel reviewed with the Continental Board the material terms of
the legal documentation to be entered into by Continental and the Continental
Board's fiduciary duties and obligations in consideration of the proposed
transaction. Salomon Smith Barney then reviewed with the Continental Board
certain terms of the proposed Merger and indicated that, upon satisfactory
resolution of certain issues described in the next paragraph and subject to
customary matters, it was prepared to deliver an opinion to the effect that
the Exchange Ratio was fair to the holders of Continental Common Stock from a
financial point of view. Morgan Stanley then reviewed with the Independent
Directors the solicitation process and certain terms of the proposed Merger
and made an oral presentation to the Independent Directors of its financial
analyses described under "Opinion of Financial Advisors--Opinion of
Continental Independent Directors' Financial Advisor." Morgan Stanley
indicated that, upon satisfactory resolution of certain issues described in
the next paragraph and subject to customary matters, it was prepared to
deliver an opinion to the Independent Directors to the effect that the
Exchange Ratio was fair to holders of Continental Common Stock from a
financial point of view. After full discussion among members of the Board, and
consultation with Salomon Smith Barney, the Continental Board determined to
proceed with the Horton proposal based upon the value represented by Horton's
offer, available information regarding other potential bidders, and the risk
that Horton's offer would likely be lower if the solicitation process
continued, as well as the ability of the Continental Board to terminate the
Merger Agreement (upon payment of the "break-up" fee) to accept a superior
proposal if its fiduciary obligations required. Morgan Stanley advised the
Independent Directors that this action appeared to be a reasonable way to
proceed. The parties continued negotiating the terms of the Merger Agreement
following the meeting.     
 
  By the close of business on December 17, 1997, the most significant issue
remaining between Continental and Horton was Horton's position that a
condition to closing be that Messrs. Hickcox and Bruce F. Dickson, President
of Continental's Austin division, sign non-competition agreements satisfactory
to Horton prior to closing. The Continental Board required that any agreement
between Horton and Messrs. Hickcox and Dickson be agreed upon prior to signing
the Merger Agreement. During the evening of December 17, 1997, Messrs.
 
                                      31
<PAGE>
 
Horton and Beckwitt talked with Messrs. Hickcox and Dickson concerning
Horton's request that they sign non-competition agreements in connection with
the Merger.
   
  On December 18, 1997, Horton and Messrs. Hickcox and Dickson agreed to amend
their employment agreements and add non-competition agreements (as described
under "Interests of Certain Persons in the Merger--Existing Severance
Agreements and Similar Arrangements; Non-Competition Agreements"). On December
18, 1997, the Continental Board reconvened. Salomon Smith Barney made an oral
presentation to the Continental Board of its financial analyses described
under "Opinion of Financial Advisors--Opinion of Continental's Financial
Advisor." Each of Salomon Smith Barney and Morgan Stanley rendered their oral
opinions (subsequently confirmed by delivery of written opinions dated
December 18, 1997) to the effect that, as of such date and based upon and
subject to certain matters stated in their respective opinions, the Exchange
Ratio was fair to the holders of Continental Common Stock from a financial
point of view. Based on Horton's closing stock price on such date Horton's
offer represented a value of $44.50 for each share of Continental Common
Stock. Following a recess, and after discussion and consideration of the
factors described under "Recommendation of the Continental Board;
Continental's Reasons for the Merger," late in the afternoon the Continental
Board unanimously approved the Merger and the Merger Agreement.     
   
  On December 18, 1997, the Horton Board met to consider the proposed merger.
Members of Horton's senior management, Horton's legal advisors and its
financial advisors made presentations and reviewed the matters set forth under
"Recommendation of Horton Board; Horton's Reasons for the Merger." The terms
of the Merger Agreement were reviewed with the Directors. DLJ made an oral
presentation to the Horton Board of its financial analyses described under
"Opinion of Financial Advisors--Opinion of Horton's Financial Advisors" and
rendered its oral opinion, confirmed by a subsequent written opinion dated
December 18, 1997, that, as of such date, the Exchange Ratio was fair from a
financial point of view to Horton and the holders of Horton Common Stock.
Horton's advisors and management answered director questions with regard to
the presentations and the terms of the transaction. After discussion and
consideration, the Horton Board voted unanimously to approve the Merger and
the Merger Agreement.     
 
  On the morning of December 19, 1997, prior to the opening of the markets,
Continental and Horton executed the Merger Agreement and publicly announced
that they had entered into a definitive agreement to effect the Merger.
 
RECOMMENDATION OF HORTON BOARD; HORTON'S REASONS FOR THE MERGER
 
  THE HORTON BOARD BELIEVES THAT THE MERGER IS FAIR TO, AND IN THE BEST
INTERESTS OF, HORTON AND ITS STOCKHOLDERS. THE HORTON BOARD HAS UNANIMOUSLY
APPROVED THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT STOCKHOLDERS
VOTE FOR APPROVAL OF THE HORTON PROPOSAL.
 
  In reaching its determination to approve the Merger Agreement and to
recommend approval of the Horton Proposal, the Horton Board consulted with
Horton management, as well as its legal counsel and financial advisor, and
considered a number of factors. The Horton Board considered the nature and
scope of the business of Continental, the quality and breadth of its assets,
and its financial condition, competitive position and prospects for continued
growth and profitability. The Horton Board also considered the following
factors:
 
    (i) the Merger is consistent with Horton's strategy of pursuing
  acquisitions of homebuilders that Horton believes have strong positions in
  important markets, records of growth and profitability and strong
  management teams;
     
    (ii) the combination of Horton and Continental will provide a large
  market share in six significant homebuilding markets--Arizona, Southern
  California, Colorado, South Florida, Georgia and Texas;     
 
    (iii) the Merger provides Horton with opportunities for non-homebuilding
  revenue growth through Continental's mortgage operations;
 
    (iv) the combination of Horton and Continental will create one of the
  largest homebuilders, in terms of revenues, homes closed, EBIT, net income
  and equity, which Horton believes creates significant
 
                                      32
<PAGE>
 
  operating synergies, an improved credit profile, increased market
  capitalization and liquidity of the Horton Common Stock;
 
    (v) the addition of Continental strengthens Horton's geographic position
  in the Sunbelt, expands Horton's product lines to include more price points
  in its existing markets, and provides entry into the San Antonio market;
 
    (vi) the complementary businesses of Horton and Continental, including
  their respective geographic markets, the cultural fit between the Horton
  and Continental management teams, with their emphasis on decentralized
  operations, the increased depth provided with the addition of Continental
  management, and the agreement of the Chief Executive Officer of Continental
  and the head of its Austin operations to sign non-competition agreements in
  connection with the Merger;
 
    (vii) the various financial and other presentations by DLJ relating to
  the opinion of DLJ that the Exchange Ratio is fair, from a financial point
  of view, to Horton and its stockholders (See "Opinions of Financial
  Advisors--Opinion of Horton's Financial Advisor");
 
    (viii) the current and expected industry, economic and market conditions;
 
    (ix) the prospects for improved financial results from the Merger beyond
  what Horton might achieve on a stand-alone basis;
 
    (x) the structure and tax treatment of the Merger;
 
    (xi) the terms of the Merger Agreement; and
    (xii) the risk that the earnings enhancements that may be available may
  not be realized, which is described in "RISK FACTORS." In the judgment of
  the Horton Board, the potential benefits of the Merger outweigh this
  consideration.
   
  In view of the variety of factors considered in connection with its
evaluation of the Merger, the Horton Board did not quantify or otherwise
attempt to assign relative weights to the specific factors considered in
reaching its determination. Moreover, in relying on the presentation and
opinion of DLJ, the Horton Board considered the DLJ financial analyses as a
whole and did not attempt to select portions of the analyses, whether
favorable or unfavorable, for special weight in reaching its determination
that the Merger is fair to Horton and its stockholders. The factors described
above constitute all of the material factors considered by the Horton Board in
connection with its evaluation of the Merger but the foregoing summary is not
intended to be exhaustive.     
 
  No member of the Horton Board has any interest in the Merger other than as a
Horton stockholder.
 
RECOMMENDATION OF CONTINENTAL BOARD; CONTINENTAL'S REASONS FOR THE MERGER
 
  THE CONTINENTAL BOARD BELIEVES THAT THE MERGER IS FAIR TO, AND IN THE BEST
INTERESTS OF, CONTINENTAL AND ITS STOCKHOLDERS. THE CONTINENTAL BOARD HAS
UNANIMOUSLY APPROVED THE MERGER AGREEMENT AND UNANIMOUSLY RECOMMENDS THAT
STOCKHOLDERS VOTE FOR APPROVAL OF THE CONTINENTAL PROPOSAL. IN CONSIDERING THE
RECOMMENDATION OF THE MERGER BY THE CONTINENTAL BOARD, CONTINENTAL
STOCKHOLDERS SHOULD BE AWARE THAT CERTAIN CONTINENTAL DIRECTORS MAY BE DEEMED
TO HAVE CONFLICTS OF INTEREST WITH RESPECT TO THE MERGER. SUCH INTERESTS,
TOGETHER WITH OTHER RELEVANT FACTORS, WERE CONSIDERED BY THE CONTINENTAL BOARD
IN RECOMMENDING THE MERGER TO THE CONTINENTAL STOCKHOLDERS AND APPROVING THE
MERGER AGREEMENT. SEE "INTERESTS OF CERTAIN PERSONS IN THE MERGER."
 
  In reaching its determination to approve the Merger Agreement and to
recommend approval of the Continental Proposal, the Continental Board
consulted with Continental management, as well as its legal counsel, its
financial advisor, the financial advisor of the independent directors and also
considered the following factors:
 
    (i) current historical market prices and trading information with respect
  to each company's common stock and the significant premium offered to
  stockholders in the Merger compared to historical trading levels of
  Continental stock;
 
                                      33
<PAGE>
 
    (ii) information concerning the business, assets, capital structure,
  financial performance and conditions and prospects of Continental and
  Horton;
     
    (iii) the financial presentations and opinions of Salomon Smith Barney to
  the Continental Board and Morgan Stanley to the Independent Directors to
  the effect that, as of December 18, 1997, and based upon and subject to
  certain matters stated in their respective opinions, the Exchange Ratio was
  fair to holders of Continental Common Stock from a financial point of view.
  See "Opinions of Financial Advisors--Opinion of Continental's Financial
  Advisor" and "Opinions of Financial Advisors--Opinion of Continental
  Independent Directors' Financial Advisor" for a discussion of Salomon Smith
  Barney's and Morgan Stanley's opinions. A copy of the Salomon Smith Barney
  and Morgan Stanley opinions, each of which is subject to certain
  limitations, qualifications, and assumptions, is included as Appendix C and
  Appendix D, respectively, and should be read carefully and in its entirety.
      
    (iv) the structure of the Merger as a tax-free exchange, the terms of the
  Merger Agreement, the amount and form of consideration, the Exchange Ratio
  and the currency to be received;
 
    (v) the fairness of the solicitation process as a whole, including
  Continental's ability to terminate the Merger Agreement in the event it
  received a superior proposal if required by the fiduciary duty of the
  directors subject to payment of a "break-up" fee;
 
    (vi) Horton's intention to operate Continental as a separate region and
  retain its name;
 
    (vii) the anticipated treatment of the Merger as a pooling of interests
  for financial accounting purposes;
 
    (viii) the right of Continental to designate two directors to sit on
  Horton's board of directors;
 
    (ix) the risk that earnings enhancements that may be available may not be
  realized;
 
    (x) the risk that the Merger may not be consummated as a result of a
  failure to satisfy the conditions to the Merger Agreement;
 
    (xi) the risk that the pace of Horton's acquisitions could adversely
  affect Horton's efforts to integrate acquisitions and manage the acquired
  companies profitably;
 
    (xii) the competitiveness of the homebuilding industry;
 
    (xiii) the fact that Mr. Horton and other affiliates of Horton currently
  own approximately 39% of Horton Common Stock and could effectively elect
  its entire Board of Directors and control its management, operations and
  affairs; and
 
    (xiv) the uncertainty as to the market price of Horton Stock.
 
  The preceding risks referenced in clauses (ix) through (xiv) above are
described in greater detail in "RISK FACTORS." In the judgment of the
Continental Board, the potential benefits of the Merger outweigh these
considerations.
   
  The foregoing discussion of the information and factors considered and given
weight by the Continental Board includes all of the material factors but is
not intended to be exhaustive. In view of the wide variety of factors
considered in connection with its evaluation of the Merger, the Continental
Board did not find it practicable to and did not attempt to rank or assign
relative weights to these factors. In addition, individual members of the
Continental Board may have given different weights to different factors.
Moreover, in relying on the presentations and opinions of Salomon Smith Barney
and Morgan Stanley, the Continental Board and the Independent Directors
considered their advisors' analyses as a whole and did not attempt to select
portions of the analyses, whether favorable or unfavorable, for special weight
in reaching the Continental Board's determination that the Merger is fair to
Continental and its stockholders.     
   
CERTAIN EXCHANGED INFORMATION     
   
  In connection with their diligence of each other, Horton and Continental
exchanged certain financial projections of future economic performance that
were prepared by their respective managements. Such     
 
                                      34
<PAGE>
 
   
information was provided by the companies to their respective financial
advisors, and certain of the information was used by such financial advisors
in the financial analyses they presented to the Horton and Continental Boards.
The Horton financial projections, based upon a September 30 fiscal year,
reflected: 1998, 1999 and 2000 revenues of $1,074.8 million, $1,208.0 million
and $1,343.8 million, respectively; 1998, 1999 and 2000 earnings before
interest, taxes, depreciation and amortization ("EBITDA") of $114.0 million,
$136.4 million and $156.8 million, respectively; and 1998, 1999 and 2000 net
income of $52.0 million, $61.6 million and $70.5 million, respectively. The
Continental financial projections, based upon a May 31 fiscal year, reflected:
1998, 1999 and 2000 revenues of $709.3 million, $834.1 million and $945.4
million, respectively; 1998, 1999 and 2000 EBITDA of $77.5 million, $94.5
million and $96.6 million, respectively; and 1998, 1999 and 2000 net income of
$31.5 million, $39.9 million and $41.7 million, respectively. The Horton and
Continental financial projections depend on future performance and numerous
other factors, including those set forth under the heading "RISK FACTORS" and
elsewhere in the Horton Reports and the Continental Reports and in this Joint
Proxy Statement/Prospectus. Achievement of these projections is dependent on,
among other things, the strength of new home markets, general economic
conditions, fluctuations in interest rates, changes in costs of materials,
supplies and labor and general competitive conditions. Horton and Continental
disclaim any duty to update such projections and make no representations as to
whether such projections will be achieved or otherwise. These financial
projections were provided as a part of the companies' diligence and their
respective ongoing dialogues with their financial advisors for purposes of
their analyses, and they were not prepared with a view toward public
disclosure. Neither the Horton nor the Continental projections addressed
Merger costs, and the Horton projections did not contemplate other
acquisitions subsequent to their preparation. No assurance can be given as to
future performance and actual results may vary materially from these
projections.     
 
OPINIONS OF FINANCIAL ADVISORS
 
 Opinion of Horton's Financial Advisor
 
  Horton selected DLJ as its exclusive financial advisor with respect to the
Merger because DLJ is a nationally recognized investment banking firm that has
substantial experience in the homebuilding industry and is familiar with
Horton, Continental and their respective businesses. As part of its investment
banking business, DLJ is regularly engaged in the valuation of businesses and
securities in connection with mergers, acquisitions, underwritings, sales and
distributions of listed and unlisted securities, private placements and
valuations for estate, corporate and other purposes.
 
  As part of its role as financial advisor to Horton, DLJ was asked to render
an opinion to the Board of Directors of Horton as to the fairness to Horton
and its stockholders of the consideration to be paid by Horton to holders of
Continental Common Stock pursuant to the Merger Agreement. On December 18,
1997, DLJ, delivered to the Board of Directors of Horton its written opinion
(the "DLJ Opinion") that, as of the date of such opinion and based upon and
subject to the provisions set forth in such opinion, the Exchange Ratio is
fair to Horton and its stockholders from a financial point of view.
 
  A COPY OF THE DLJ OPINION IS ATTACHED HERETO AS APPENDIX B. HOLDERS OF
HORTON COMMON STOCK ARE URGED TO READ THE DLJ OPINION IN ITS ENTIRETY FOR THE
ASSUMPTIONS MADE, THE MATTERS CONSIDERED AND THE LIMITS OF THE REVIEW MADE BY
DLJ IN CONNECTION WITH SUCH OPINION.
 
  The DLJ Opinion was prepared for the Horton Board of Directors and is
directed only to the fairness to Horton and its stockholders from a financial
point of view of the Exchange Ratio. The DLJ Opinion does not constitute a
recommendation to any stockholder as to how to vote on the transaction at the
Horton Stockholders Meeting. DLJ did not make any recommendation as to the
form or amount of consideration to be paid by Horton pursuant to the
transactions contemplated by the Merger Agreement. Such consideration was
determined in negotiations between Horton and Continental in which
negotiations DLJ advised Horton management. DLJ's opinion does not constitute
an opinion as to the prices at which Horton Common Stock will actually trade
at any time, including the Effective Time. No restrictions or limitations were
imposed by Horton upon DLJ with respect to the investigations made or the
procedures followed by DLJ in rendering the DLJ Opinion.
 
                                      35
<PAGE>
 
  In arriving at its opinion, DLJ reviewed the Merger Agreement. DLJ also
reviewed financial and other information that was publicly available or
furnished to it by Horton and Continental, including information provided
during discussions with their respective managements. Included in the
information provided to DLJ were certain internal financial projections of
Horton and Continental prepared by management of Horton and Continental,
respectively. In addition, DLJ compared certain financial and securities data
of Horton and Continental with various other companies whose securities are
traded in the public markets, reviewed historical stock prices and trading
volumes of Horton Common Stock and Continental Common Stock, reviewed prices
and financial data implied by the consideration paid in other business
combinations and conducted such other financial studies, analyses and
investigations as DLJ deemed appropriate for the purposes of its opinion. The
DLJ Opinion assumes that the Merger qualifies as a tax-free reorganization and
for pooling of interests accounting treatment.
 
  In rendering the DLJ Opinion, DLJ, with the consent of the Horton Board,
relied upon and assumed the accuracy, completeness and fairness of all of the
financial and other information that was available to it from public sources,
that was provided to it by Horton and Continental or their respective
representatives or that was otherwise reviewed by DLJ. DLJ also, with the
consent of the Horton Board, assumed that the financial projections supplied
to it were reasonably prepared on bases reflecting the best currently
available estimates and judgments of the managements of Horton and Continental
as to the future operating and financial performance of Horton and
Continental, respectively, and of the opportunities to enhance future earnings
through expansion of Continental's existing mortgage activities to markets
served by Horton and potential cost savings in several areas as a result of
the Merger. The savings anticipated by Horton, and assumed by DLJ, were
principally in the areas of state income tax planning; general, life, warranty
and health insurance; public company costs; financing and bank costs; home
construction and administrative costs through increased purchasing power; and
consistent company-wide policies in areas such as dues and subscriptions,
contributions, travel and employee benefits. DLJ has not assumed any
responsibility for making any independent evaluation or appraisal of the
assets or liabilities of Horton or Continental or for making any independent
verification of any information reviewed by it.
 
  The DLJ Opinion is necessarily based on economic, market, financial and
other conditions as they existed on, and on the information made available to
it as of, the date of the DLJ Opinion. Although subsequent developments may
affect its opinion, DLJ does not have any obligation to update, revise or
reaffirm its opinion.
 
  The following is a summary of certain factors considered and the principal
financial analyses performed by DLJ to arrive at its opinion dated as of
December 18, 1997. This summary includes the material factors considered and
analyses performed by DLJ but does not purport to be an exhaustive
description. DLJ drew no specific conclusions from any of these analyses but
subjectively factored its observations from these analyses into its
qualitative assessment of the relevant facts and circumstances.
   
  Pro Forma Merger Analysis. DLJ analyzed certain pro forma effects resulting
from the Merger. In conducting its analysis, DLJ relied upon the assumptions
described above and the financial projections provided by the managements of
Horton and Continental. Using the financial information and projections
provided to DLJ by Continental's and Horton's respective management, DLJ
reviewed the impact on Horton's 1998, 1999 and 2000 projected earnings per
share resulting from the Merger. DLJ's analysis separately considered
accretion/ dilution (i) on an unadjusted basis and (ii) giving effect to the
opportunities to enhance earnings estimated by Horton's management. The
amounts of pretax earnings enhancements estimated by Horton, and assumed by
DLJ, were $2.1 million, $13.1 million and $15.9 million for fiscal years 1998,
1999 and 2000, respectively. Actual results achieved by the combined companies
may vary from the amounts used and the variations may be material. This
analysis indicated that the Merger would be accretive to 1998, 1999 and 2000
projected earnings per share with synergies assuming an Exchange Ratio equal
to 2.37 (the "Median Exchange Ratio"). On an unadjusted basis, the analysis
indicated that the Merger would have no material impact on projected earnings
per share in 1998 and would be nominally dilutive to 1999 and 2000 projected
earnings per share. DLJ also considered the effect on its analysis of a
variance in the price of Horton Common Stock which would result in an exchange
ratio equal to 2.759 (the "High Exchange Ratio"). This analysis revealed that
the Merger would be accretive to     
 
                                      36
<PAGE>
 
1999 and 2000 projected earnings per share and nominally dilutive to 1998
projected earnings per share, in each case after giving effect to synergies.
On an unadjusted basis, the analysis indicated that the Merger would be
dilutive to 1998, 1999 and 2000 projected earnings per share in a range of
5.9% to 6.8%.
   
  Analysis of Certain Other Publicly Traded Companies. To provide contextual
data and comparative market information, DLJ compared selected historical
earnings and operating and financial ratios for Continental to corresponding
data and ratios of certain homebuilding companies whose securities are
publicly traded. In conducting its analysis, DLJ compared the ratios implied
by the consideration to be paid by Horton in the Merger to the ratios implied
from the market valuation of publicly traded companies selected by DLJ (the
"Homebuilding Companies") based upon qualitative factors which DLJ deemed
relevant based upon its experience in the homebuilding industry including
size, as measured by the number of homes delivered, revenue, lines of business
including market segment of target customers, and geographic areas in which
the comparable companies operate. The Homebuilding Companies included: Centex
Corp., Kaufman & Broad Home Corp., Lennar Corp., MDC Homes, Pulte Corp.,
Ryland Group, Inc., Standard Pacific Corp. and U.S. Home Corp. Although DLJ
used these companies for comparison purposes, none of such companies is
directly comparable to Continental or Horton. Accordingly, a complete analysis
of the results cannot be limited to a quantitative review and involves complex
considerations and judgments concerning differences in financial and operating
characteristics of the Homebuilding Companies and other factors which could
affect the public trading value of the Homebuilding Companies as well as that
of Continental. Data and ratios considered by DLJ included: the ratio of
enterprise value to (i) latest twelve months ("LTM") EBITDA and (ii) LTM
earnings before interest and taxes ("EBIT"); and the ratio of market price to
(i) LTM earnings per share ("EPS"); and (ii) book value. Enterprise value is
defined as the sum of the principal amount of a company's debt and minority
interests in consolidated subsidiaries plus the market value of its equity
securities less excess cash. EBITDA was selected for analysis by DLJ because
it is a widely used estimate of cash flows generated by operations. EBIT was
selected by DLJ because it is a measure of operating performance. Book value
was selected by DLJ because it is a widely used basis for determining the
inherent economic value in a homebuilding company. The ratio of enterprise
value to LTM EBITDA ranged from 6.5x to 11.4x for the Homebuilding Companies,
was 13.3x for Horton and was 7.6x for Continental. This compares to an implied
ratio of enterprise value to LTM EBITDA of 8.9x attributable to Continental
based on the stock price at the mid-point of the Median Exchange Ratio, or
$42.50 per share of Continental Common Stock (the "Median Exchange Price").
The ratio of enterprise value to LTM EBIT ranged from 7.8x to 12.0x for the
Homebuilding Companies, was 14.1x for Horton and was 8.0x for Continental.
This compares to an implied ratio of enterprise value to LTM EBIT of 9.3x
attributable to Continental based on the Median Exchange Price. The ratio of
market price to LTM EPS ranged from 10.9x to 24.7x for the Homebuilding
Companies, was 19.6x for Horton and was 11.7x for Continental. This compares
to an implied ratio of market price to LTM EPS of 14.2x attributable to
Continental based on the Median Exchange Price. The ratio of market price to
book value ranged from 1.0x to 2.6x for the Homebuilding Companies, was 2.8x
for Horton and was 1.5x for Continental (assuming conversion of the
Continental Convertible Notes into common equity). This compares to an implied
ratio of market price to book value of 1.8x attributable to Continental based
on the Median Exchange Price.     
   
  Comparable Merger and Acquisition Analysis. Using publicly available
information, DLJ reviewed the implied valuation multiples of three comparable
homebuilding merger transactions consisting of (acquiror/target): Lennar
Corp./Pacific Greystone Corp.; Horton/Torrey Group; and Continental/Milburn
Investments Inc. (collectively, the "Comparable Homebuilding Transactions").
DLJ selected the Comparable Homebuilding Transactions principally based on the
fact that the selected transactions were larger in total consideration
relative to the universe of homebuilding merger and acquisition transactions
over the prior five years. In electing to focus on the relatively larger
transactions, DLJ determined that relatively smaller transactions generally
may not serve well as comparable transactions for large public company
transactions because of the valuation distortion which is attributable to the
tax, accounting and structural issues attendant with a smaller entity.
Additionally, DLJ determined that smaller homebuilders generally have unique
capital structures and are frequently over-leveraged relative to large market
capitalization homebuilders which further complicates the comparison process.
Additionally, given the limitations on measuring the valuations in these small
company transactions, it was difficult to derive accurate valuation measures
of historical EBITDA, EBIT, EPS and book     
 
                                      37
<PAGE>
 
   
value. DLJ determined that a publicly traded enterprise, with a long-term
earnings history and measurable financial and operational performance should
be evaluated on a multiple basis of EBITDA, EBIT, and EPS as well as book
value for truly comparable transactions. Accordingly, for analytical purposes,
DLJ selected those transactions that it determined were more appropriate in
size and scope. The comparable transaction analysis is limited, however, as a
result of the following factors: (i) a very small number of relevant
transactions have taken place in the homebuilding industry; (ii) the
relatively small size of two of the three transactions analyzed; and (iii)
only one of the transactions analyzed pertains to a merger between two public
companies. Additionally, in reviewing the multiples in the comparable
transactions, DLJ considered the effects of the prevailing market conditions.
DLJ compared the ratios implied by the Median Exchange Ratio to the ratio of
enterprise value to LTM EBITDA and LTM EBIT implied by the consideration paid
in the Comparable Homebuilding Transactions and the ratio of equity value to
LTM EPS and book value implied by the consideration paid in the Comparable
Homebuilding Transactions. The ratio of enterprise value implied by the
consideration paid to (i) LTM EBITDA provided a range of 10.4x to 12.9x for
the Comparable Homebuilding Transactions compared to 8.9x for the Merger at
the Median Exchange Ratio, and (ii) LTM EBIT provided a range of 10.7x to
13.2x for the Comparable Homebuilding Transactions compared to 9.3x for the
Merger at the Median Exchange Ratio. The ratio of equity value implied by the
consideration paid to LTM EPS is of limited value given that only one of the
comparable transactions was between public companies, but produced a ratio of
10.3x compared to 14.2x for the Merger at the Median Exchange Ratio. The ratio
of equity value implied by the consideration paid to book value produced a
range of 1.2x to 2.2x for the Comparable Homebuilding Transactions compared to
1.8x for the Merger at the Median Exchange Ratio.     
 
  Contribution Analysis. DLJ reviewed the relative contribution to the
combined company after the Merger of Horton, as a stand alone enterprise, and
Continental, as a stand alone enterprise. DLJ relied upon estimates of 1998
and 1999 financial information provided by Horton's and Continental's
respective managements. At the Median Exchange Ratio, shareholders of Horton
and Continental will own approximately 60% and 40%, respectively, of the fully
diluted common stock of the combined company. Depending on the final Exchange
Ratio, shareholders of Horton and Continental will own a range of 56% to 61%
and 39% to 44%, respectively, of the fully diluted Common Stock of the
combined company. The projections made by Continental's and Horton's
managements indicate, over the two year period, that Horton would provide from
59.2% to 60.2% of combined revenues; from 59.9% to 60.5% of combined EBITDA;
from 59.4% to 59.9% of combined EBIT; and from 62.6% to 63.3% of combined net
income. On a corresponding basis Continental would provide from 39.8% to 40.8%
of combined revenues, from 39.5% to 40.1% of combined EBITDA; from 40.1% to
40.6% of combined EBIT; and from 37.3% to 37.9% of combined net income.
Assuming conversion of the Continental Convertible Notes, for fiscal year
1997, pro forma for the combined company, Continental and Horton would
contribute approximately 49% and 51% of book value. The foregoing analysis
does not include the effects of any Exchange Ratio greater than those in the
range of Exchange Ratios required by the Merger Agreement as DLJ was not asked
to address such ratios. See "THE MERGER AGREEMENT-Merger Consideration."
   
  Premium Analysis. DLJ calculated the premium, represented by multiplying
Horton's stock price by the Median Exchange Ratio to Continental's closing
stock prices on the day, week and four weeks prior to December 19, 1997, the
date the Merger was announced. Based upon Continental's closing stock price of
$35.06, $34.13 and $31.06 on December 18, December 11, and November 18, 1997,
respectively, the Median Exchange Ratio would have represented premiums of
20.5%, 23.8% and 36.0%, respectively, for the day before, the week prior to,
and four weeks prior to, the announcement of the Merger. DLJ also examined
transactions with a valuation range of $250.0 million to $1.0 billion,
occurring since January 1, 1994. In those transactions, DLJ first compared
premiums paid in (i) all publicly announced transactions (151 transactions),
and then in (ii) all publicly announced transactions with all stock
consideration (70 transactions). The average premium to the closing price of
the common stock of the targets on the day, week and four weeks prior to the
announcement of all such comparable transactions was 30.8%, 37.0% and 44.7%,
respectively. The average premium to the closing price of the common stock of
the targets on the day, week and four weeks prior to the announcement of all
stock consideration comparable transactions was 33.4%, 39.8% and 48.7%,
respectively.     
 
  Stock Price Trading History. DLJ also reviewed the history of trading prices
for the Continental Common Stock and the Horton Common Stock over the last
twelve months. Over the 52 weeks prior to the announcement
 
                                      38
<PAGE>
 
   
of the Merger, Continental Common Stock traded between $34.81 and $15.50 per
share and had a price immediately prior to announcement of the Merger of
$34.69 per share. DLJ also reviewed the history of trading prices for the
Continental Common Stock for the periods 90 days and 30 days prior to the
announcement of the Merger. Over the 90 days prior to the announcement of the
Merger, Continental Common Stock traded between $34.81 and $20.75 per share.
Over the 30 days prior to the announcement of the Merger, Continental Common
Stock traded between $34.81 and $29.75 per share. Over the 52 weeks prior to
the announcement of the Merger, Horton Common Stock traded between $9.25 and
$20.38 per share and had a price immediately prior to the announcement of the
Merger of $19.50 per share. DLJ also reviewed the history of trading prices
for the Horton Common Stock for the periods 90 days and 30 days prior to the
announcement of the Merger. Over the 90 days prior to the announcement of the
Merger, Horton Common Stock traded between $20.38 and $15.00 per share. Over
the 30 days prior to the announcement of the Merger, Horton Common Stock
traded between $20.38 and $17.00 per share. DLJ also reviewed the trading
volume of Continental Common Stock and Horton Common Stock over the above-
referenced periods. DLJ did not specifically review such information with the
Horton Board as this particular data did not materially impact DLJ's opinion
that the Exchange Ratio was fair to Horton and its stockholders from a
financial point of view.     
 
  The summary set forth above describes the material analyses performed and
factors considered by DLJ but does not purport to be an exhaustive
description. The preparation of a fairness opinion involves various
determinations as to the most appropriate and relevant methods of financial
analysis and the application of these methods to the particular circumstances
and, therefore, such an opinion is not readily susceptible to summary
description. Accordingly, notwithstanding the separate factors summarized
above, DLJ believes that its analysis must be considered as a whole and that
selecting portions of its analysis and the factors considered by it, without
considering all analyses and factors, could create an incomplete view of the
evaluation process underlying its opinions. Furthermore, in arriving at its
fairness opinion, DLJ did not attribute any particular weight to any analysis,
or factor considered by it, but rather made subjective and qualitative
judgments as to the significance and relevance of each analysis and factor. In
performing its analyses, DLJ made numerous assumptions with respect to
industry performance, business and economic conditions and other matters. The
analyses performed by DLJ are not necessarily indicative of actual values or
future results, which may be significantly more or less favorable than
suggested by such analyses.
 
  Pursuant to the terms of an engagement letter, as amended, Horton has agreed
to pay DLJ a fee of $600,000 for rendering its fairness opinion. In addition,
Horton has agreed to pay DLJ $1,725,000, less the amount set forth in the
preceding sentence, upon consummation of the Merger. Additionally, in the
event that Horton does not consummate the Merger and Horton receives any
termination fees from Continental, DLJ will receive 15.0% of any payment
received from Continental up to an amount not greater than $1,725,000. Horton
has also agreed to reimburse DLJ for its reasonable out-of-pocket expenses
(including the reasonable fees and expenses of DLJ's counsel) incurred in
connection with its engagement, and to indemnify DLJ and certain of its
related persons against certain liabilities in connection with its engagement,
including liabilities under the federal securities laws. The terms of the fee
arrangement with DLJ, which DLJ and Horton believe are customary in
transactions of this nature, were negotiated at arm's length between Horton
and DLJ. DLJ has performed investment banking and other services for Horton in
the past and has been compensated for such services. DLJ was the sole manager
for Horton's June 1997 offering of $150.0 million of 8.375% Senior Notes. DLJ
also acted as a co-manager for Horton's March 1997 offering of Common Stock.
 
  In the ordinary course of business, DLJ actively trades the debt and equity
securities of Horton and Continental for its own account and for the accounts
of its customers and accordingly, may at any time hold a long or short
position in such securities.
 
 Opinion of Continental's Financial Advisor
 
  Salomon Smith Barney was retained by Continental to act as its financial
advisor in connection with the proposed Merger. In connection with such
engagement, Continental requested that Salomon Smith Barney evaluate the
fairness, from a financial point of view, to the holders of Continental Common
Stock of the
 
                                      39
<PAGE>
 
consideration to be received by such holders in the Merger. On December 18,
1997, at a meeting of the Board of Directors of Continental held to evaluate
the proposed Merger, Salomon Smith Barney delivered an oral opinion (which
opinion was subsequently confirmed by delivery of a written opinion dated
December 18, 1997) to the Board of Directors of Continental to the effect
that, as of the date of such opinion and based upon and subject to certain
matters stated therein, the Exchange Ratio was fair, from a financial point of
view, to the holders of Continental Common Stock.
 
  In arriving at its opinion, Salomon Smith Barney reviewed the Merger
Agreement and held discussions with certain senior officers, directors and
other representatives and advisors of Continental and certain senior officers
and other representatives and advisors of Horton concerning the businesses,
operations and prospects of Continental and Horton. Salomon Smith Barney
examined certain publicly available business and financial information
relating to Continental and Horton as well as certain financial forecasts and
other information and data for Continental and Horton which were provided to
or otherwise discussed with Salomon Smith Barney by the respective managements
of Continental and Horton, including information relating to certain strategic
implications and operational benefits anticipated to result from the Merger.
Salomon Smith Barney reviewed the financial terms of the Merger as set forth
in the Merger Agreement in relation to: current and historical market prices
and trading volumes of Continental Common Stock and Horton Common Stock; the
historical and projected earnings and other operating data of Continental and
Horton; and the capitalization and financial condition of Continental and
Horton. Salomon Smith Barney also considered, to the extent publicly
available, the financial terms of other transactions recently effected which
Salomon Smith Barney considered relevant in evaluating the Merger and analyzed
certain financial, stock market and other publicly available information
relating to the businesses of other companies whose operations Salomon Smith
Barney considered relevant in evaluating those of Continental and Horton.
Salomon Smith Barney also evaluated the potential pro forma financial impact
of the Merger on Horton. In connection with its engagement, Salomon Smith
Barney was requested to approach, and held discussions with, third parties to
solicit indications of interest in a possible acquisition of Continental. In
addition to the foregoing, Salomon Smith Barney conducted such other analyses
and examinations and considered such other financial, economic and market
criteria as Salomon Smith Barney deemed appropriate in arriving at its
opinion. Salomon Smith Barney noted that its opinion was necessarily based
upon information available, and financial, stock market and other conditions
and circumstances existing and disclosed, to Salomon Smith Barney as of the
date of its opinion.
 
  In rendering its opinion, Salomon Smith Barney assumed and relied, without
independent verification, upon the accuracy and completeness of all financial
and other information and data publicly available or furnished to or otherwise
reviewed by or discussed with Salomon Smith Barney. With respect to financial
forecasts and other information and data provided to or otherwise reviewed by
or discussed with Salomon Smith Barney, the managements of Continental and
Horton advised Salomon Smith Barney that such forecasts and other information
and data were reasonably prepared on bases reflecting the best currently
available estimates and judgments of the managements of Continental and Horton
as to the future financial performance of Continental and Horton and the
strategic implications and operational benefits anticipated to result from the
Merger. Salomon Smith Barney assumed, with the consent of the Continental
Board, that the Merger will be treated as a pooling of interests in accordance
with generally accepted accounting principles and as a tax-free reorganization
for federal income tax purposes. Salomon Smith Barney did not express any
opinion as to what the value of the Horton Common Stock actually will be when
issued to Continental stockholders pursuant to the Merger or the prices at
which the Horton Common Stock will trade or otherwise be transferable
subsequent to the Merger. Salomon Smith Barney did not make and was not
provided with an independent evaluation or appraisal of the assets or
liabilities (contingent or otherwise) of Continental or Horton nor did Salomon
Smith Barney make any physical inspection of the properties or assets of
Continental and Horton. Although Salomon Smith Barney evaluated the Exchange
Ratio from a financial point of view, Salomon Smith Barney was not asked to
and did not recommend the specific consideration payable in the Merger, which
was determined through negotiation between Continental and Horton. No other
limitations were imposed by Continental on Salomon Smith Barney with respect
to the investigations made or procedures followed by Salomon Smith Barney in
rendering its opinion.
 
                                      40
<PAGE>
 
   
  THE FULL TEXT OF THE WRITTEN OPINION OF SALOMON SMITH BARNEY DATED DECEMBER
18, 1997, WHICH SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND
LIMITATIONS ON THE REVIEW UNDERTAKEN, IS ATTACHED HERETO AS APPENDIX C AND
SHOULD BE READ CAREFULLY IN ITS ENTIRETY. SALOMON SMITH BARNEY HAS CONSENTED
TO THE INCLUSION OF ITS OPINION LETTER TO THE BOARD OF DIRECTORS OF
CONTINENTAL AS APPENDIX C HERETO. IN GIVING SUCH CONSENT, SALOMON SMITH BARNEY
DOES NOT ADMIT THAT IT COMES WITHIN THE CATEGORY OF PERSONS WHOSE CONSENT IS
REQUIRED UNDER SECTION 7 OF THE SECURITIES ACT, OR THE RULES AND REGULATIONS
OF THE COMMISSION THEREUNDER, NOR DOES IT THEREBY ADMIT THAT IT IS AN EXPERT
WITH RESPECT TO ANY PART OF THE REGISTRATION STATEMENT OF WHICH THIS JOINT
PROXY STATEMENT/PROSPECTUS IS A PART WITHIN THE MEANING OF THE TERM "EXPERTS"
AS USED IN THE SECURITIES ACT, OR THE RULES AND REGULATIONS OF THE COMMISSION
THEREUNDER. THE OPINION OF SALOMON SMITH BARNEY IS DIRECTED TO THE BOARD OF
DIRECTORS OF CONTINENTAL AND RELATES ONLY TO THE FAIRNESS OF THE EXCHANGE
RATIO FROM A FINANCIAL POINT OF VIEW, DOES NOT ADDRESS ANY OTHER ASPECT OF THE
MERGER OR RELATED TRANSACTIONS AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY
STOCKHOLDER AS TO HOW SUCH STOCKHOLDER SHOULD VOTE AT THE CONTINENTAL SPECIAL
MEETING. THE SUMMARY OF THE OPINION OF SALOMON SMITH BARNEY SET FORTH IN THIS
JOINT PROXY STATEMENT/PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
THE FULL TEXT OF SUCH OPINION.     
 
  In preparing its opinion, Salomon Smith Barney performed a variety of
financial and comparative analyses, including those described below. The
summary describes the material analyses performed but does not purport to be
an exhaustive description. The preparation of a fairness opinion is a complex
analytic process involving various determinations as to the most appropriate
and relevant methods of financial analyses and the application of those
methods to the particular circumstances and, therefore, such an opinion is not
readily susceptible to summary description. Accordingly, Salomon Smith Barney
believes that its analyses must be considered as a whole and that selecting
portions of its analyses and factors, without considering all analyses and
factors, could create a misleading or incomplete view of the processes
underlying such analyses and opinion. In its analyses, Salomon Smith Barney
made numerous assumptions with respect to Continental, Horton, industry
performance, general business, economic, market and financial conditions and
other matters, many of which are beyond the control of Continental and Horton.
The estimates contained in such analyses and the valuation ranges resulting
from any particular analysis are not necessarily indicative of actual values
or predictive of future results or values, which may be significantly more or
less favorable than those suggested by such analyses. In addition, analyses
relating to the value of businesses or securities do not purport to be
appraisals or to reflect the prices at which businesses or securities actually
may be sold. Accordingly, such analyses and estimates are inherently subject
to substantial uncertainty. Salomon Smith Barney's opinion and analyses were
only one of many factors considered by the Board of Directors of Continental
in its evaluation of the Merger and should not be viewed as determinative of
the views of the Board of Directors or management of Continental with respect
to the Exchange Ratio or the proposed Merger.
   
  Selected Company Analysis. Using publicly available information, Salomon
Smith Barney analyzed, among other things, the market values and trading
multiples of Continental and the following 17 selected publicly traded
companies in the home building industry, consisting of (i) smaller
capitalization companies (companies with an equity market value of less than
$400 million as of December 18, 1997): Beazer Homes USA, Inc., Crossman
Communities, Inc., Engle Homes, Inc., The Fortress Group, Inc., Hovnanian
Enterprises, Inc., M.D.C. Holdings, Inc., M/I Schottenstein Homes, Inc., NVR
Inc., and The Ryland Group, Inc. (the "Smaller Cap Companies"), and (ii)
larger capitalization companies (companies with an equity market value of
greater than $400 million as of December 18, 1997): Centex Corporation, Del
Webb Corp., Horton, Kaufman & Broad Home Corp., Lennar Corporation, Pulte
Corporation, Toll Brothers, Inc., and U.S. Home Corporation (the "Larger Cap
Companies" and, together with the Smaller Cap Companies, the "Selected
Companies"). The Selected Companies were determined based on a combination of
factors such as size, relative operating performance, diversity of geographic
markets and/or types of business conducted generally. With respect to the
Selected Companies, Salomon Smith Barney focused primarily on the Smaller Cap
Companies, which Salomon Smith Barney considered to be most similar to
Continental based on the factors used in determining the Selected Companies
and, therefore, focused on the trading multiples of the Smaller Cap Companies
for purposes of deriving an implied equity reference range for Continental.
Salomon Smith Barney compared market values as     
 
                                      41
<PAGE>
 
multiples of estimated calendar 1997 and 1998 net income and most recent book
value, and adjusted market values (equity market value, plus total debt, less
cash and cash equivalents) as multiples of, among other things, latest 12
months earnings before interest, taxes, depreciation and amortization
("EBITDA"). Net income estimates for the Selected Companies were based on
estimates of selected investment banking firms and net income estimates for
Continental were based on internal estimates of the management of Continental.
All multiples were based on closing stock prices as of December 18, 1997. For
purposes of such analysis, Salomon Smith Barney assumed full conversion of
Continental Convertible Notes. Applying a range of selected multiples
(excluding those multiples which did not appear to accurately depict a
financial statistic) for the Smaller Cap Companies of estimated calendar 1997
and 1998 net income, book value as of November 30, 1997 and latest 12 months
EBITDA of 9.9x to 12.1x, 8.8x to 10.8x, 1.22x to 1.50x and 6.7x to 8.1x,
respectively, to corresponding financial data for Continental resulted in an
equity reference range for Continental of approximately $30.14 to $37.73 per
share on a fully diluted basis, as compared to the equity value implied by the
Exchange Ratio of approximately $44.50 per share based on the closing price
for Horton Common Stock on December 18, 1997.
 
  Selected Merger and Acquisition Transactions Analysis. Using publicly
available information, Salomon Smith Barney reviewed the purchase prices and
implied transaction multiples paid or proposed to be paid in 25 selected
transactions in the home building industry, consisting of
(acquiror/target): Crossman Communities, Inc./Cutter Homes, Ltd.; Lennar
Corp./Pacific Greystone Corp.; Monterey Homes Corporation/Legacy Homes Ltd.;
The Fortress Group, Inc./Don Galloway Homes, Inc.; The Fortress Group,
Inc./Wilshire Homes, Inc.; The Fortress Group, Inc./D.W. Hutson Construction
Company; Horton/Torrey Homes, Inc.; Horton/SGS Communities, Inc.;
Horton/Trimark Communities LLC; Beazer Homes USA, Inc./Trendmaker Homes
(Weyerhaeuser Real Estate Company); Continental/Westchester Homes; Kaufman &
Broad Home Corp./Rayco Ltd.; Beazer Homes USA, Inc./Del Mar Development Inc.;
M.D.C. Holdings, Inc./Mesa Homes of Riverside (Kemper Corp.); Horton/Regency
Development, Inc.; Horton/Arappco, Inc.; Beazer Homes USA, Inc./Bramalea Homes
Texas, Inc.; Continental/Heftler Realty; Eagle Homes Inc./Park Homes West
Inc.; Washington Homes Inc./Westminster Homes -- Homebuilding Division;
Continental/Aspen Homes; Horton/Joseph M. Miller Construction, Inc. & Argus
Development, Inc.; Continental/Milburn Investments Inc.; Beazer Homes USA,
Inc./Watt Housing Corporation; and Capital Pacific Homes/JM Peters Co. Inc.
(collectively, the "Selected Transactions"). Salomon Smith Barney compared
purchase prices in the Selected Transactions as multiples of latest 12 months
net income and book value, and transaction values as multiples of, among other
things, latest 12 months EBITDA. For purposes of such analysis, Salomon Smith
Barney assumed full conversion of the Continental Convertible Notes. Applying
a range of selected multiples for the Selected Transactions of latest 12
months net income, book value and EBITDA of 10.0x to 12.0x, 1.50x to 2.00x and
6.5x to 8.0x, respectively, to corresponding financial data for Continental
resulted in an equity reference range for Continental of approximately $30.44
to $39.63 per share on a fully diluted basis, as compared to the equity value
implied by the Exchange Ratio of approximately $44.50 per share based on the
closing price for Horton Common Stock on December 18, 1997.
 
  No company, transaction or business used in the "Selected Company Analysis"
or "Selected Merger and Acquisition Transactions Analysis" as a comparison is
identical to Continental, Horton or the Merger. Accordingly, an analysis of
the results of the foregoing is not entirely mathematical; rather, it involves
complex considerations and judgments concerning differences in financial and
operating characteristics and other factors that could affect the acquisition,
public trading or other values of the Selected Companies, the Selected
Transactions or the business segment, company or transaction to which they are
being compared.
 
  Contribution Analysis. Salomon Smith Barney analyzed the respective
contributions of Continental and Horton to, among other things, the estimated
book value of the pro forma combined company and to the estimated net income
and EBITDA of the pro forma combined company for fiscal years 1998 and 1999,
based on internal estimates of the managements of Continental and Horton and
assuming, for purposes of net income estimates, full conversion of Continental
Convertible Notes. This analysis indicated that (i) in fiscal year 1997,
Continental would contribute approximately 49.3% of book value, and Horton
would contribute approximately 50.7% of book value, of the pro forma combined
company, (ii) in fiscal year 1998, Continental would contribute
 
                                      42
<PAGE>
 
approximately 41.4% of net income and 40.6% of EBITDA, and Horton would
contribute approximately 58.6% of net income and 59.4% of EBITDA, of the pro
forma combined company, and (iii) in fiscal year 1999, Continental would
contribute approximately 39.7% of net income and 40.3% of EBITDA, and Horton
would contribute approximately 60.3% of net income and 59.7% of EBITDA, of the
pro forma combined company. Current stockholders of Continental would own
approximately 39.1% (based on the minimum Exchange Ratio), 39.8% (based on the
implied Exchange Ratio as of December 18, 1997) and 44.1% (based on the
maximum Exchange Ratio) of the equity value of the pro forma combined company
on a fully diluted basis upon consummation of the Merger, and Continental
would constitute approximately 38.6% (based on the minimum Exchange Ratio),
39.1% (based on the implied Exchange Ratio as of December 18, 1997) and 41.6%
(based on the Maximum Exchange Ratio), respectively, of the enterprise value
of the pro forma combined company.
   
  Pro Forma Merger Analysis. Salomon Smith Barney analyzed certain pro forma
effects resulting from the Merger, including, among other things, the impact
of the Merger on Horton's projected earnings per share ("EPS") for fiscal
years 1998 and 1999, based on internal estimates of the managements of
Continental and Horton and assuming, for purposes of such estimates, full
conversion of the Continental Convertible Notes. The results of the pro forma
merger analysis suggested that the Merger could be accretive to Horton's fully
diluted EPS in fiscal years 1998 and 1999 at the minimum Exchange Ratio of
2.250 and the implied Exchange Ratio as of December 18, 1997 of 2.312, and
dilutive to Horton's fully diluted EPS in fiscal years 1998 and 1999 at the
maximum Exchange Ratio of 2.759, both before and after giving effect to
approximately $3.0 million in annual cost savings and other potential
synergies anticipated by the management of Continental to result from the
Merger. The actual results achieved by the surviving corporation may vary from
projected results and the variations may be material.     
   
  Premium Analysis. Salomon Smith Barney analyzed the implied premium payable
in the Merger in comparison to the premiums paid in 56 transactions having
transaction values between $460 million and $600 million. The range of
premiums paid in such transactions based on the closing stock price of the
acquired company one day prior, one week prior, and one month prior, to public
announcement of the transaction were approximately (10.8)% to 173.7% (with a
mean of 31.9% and a median of 26.5%), (13.0)% to 133.2% (with a mean of 34.7%
and a median of 28.5%) and 0.3% to 163.7% (with a mean of 40.3% and a median
of 32.3%), respectively, as compared to the implied premiums payable in the
Merger, based on the closing price of Horton Common Stock on December 18,
1997, of approximately 26.9% (based on the closing price of Continental Common
Stock on December 18, 1997), 30.4% (based on the closing price of Continental
Common Stock one week prior to December 18, 1997), 43.3% (based on the closing
price of Continental Common Stock one month prior to December 18, 1997), 61.5%
(based on the closing price of Continental Common Stock three months prior to
December 18, 1997), 147.2% (based on the closing price of Continental Common
Stock six months prior to December 18, 1997), 52.1% (based on the closing
price of Continental Common Stock one week prior to October 6, 1997, the date
on which Continental publicly announced that it was exploring strategic
alternatives) and 81.6% (based on the closing prices of Continental Common
Stock one month prior to October 6, 1997). Salomon Smith Barney did not derive
an implied value per share for the Continental Common Stock from this
analysis.     
 
  Leveraged Buy-out Analysis. Salomon Smith Barney performed an analysis
designed to determine the price that could be paid by a financial investor to
complete a leveraged buy-out (an "LBO") of Continental, based on internal
estimates of the management of Continental. For purposes of such analysis,
Salomon Smith Barney assumed, among other things, (i) the transaction could be
financed using a capital structure consisting of bank debt, subordinated debt
and equity, with a latest 12 months pro forma total debt to EBITDA ratio of
approximately 5.4x, and (ii) an LBO investor would require a rate of return on
its equity investment in three to five years of approximately 25%, applying,
for such purposes, estimated net income multiples in connection with the
disposition of such equity investment of 9.0x to 11.0x. This analysis resulted
in an equity reference range for Continental of approximately $35.00 to $37.00
per share on a fully diluted basis, as compared to the equity value implied by
the Exchange Ratio of approximately $44.50 per share based on the closing
price of Horton Common Stock on December 18, 1997.
 
  Exchange Ratio Analysis. Salomon Smith Barney compared the historical ratio
of the average daily closing prices of Continental Common Stock to Horton
Common Stock over the three-month period preceding
 
                                      43
<PAGE>
 
October 6, 1997, the date on which Continental publicly announced that it was
pursuing strategic alternatives, and the 12-month period preceding December
18, 1997. The average exchange ratios over the three-month period preceding
October 6, 1997 and the 12-month period preceding December 18, 1997 were 1.706
and 1.758, respectively, as compared to the minimum Exchange Ratio of 2.250,
the maximum Exchange Ratio of 2.759 and the implied Exchange Ratio based on
the closing price of Horton Common Stock on December 18, 1997 of 2.312.
   
  Other Factors. In rendering its opinion, Salomon Smith Barney considered
certain other factors, including, among other things, a review of indications
of interest received from, and discussions with, third parties other than
Horton and selected published analysts' reports on Continental and Horton.
    
  Pursuant to the terms of Salomon Smith Barney's engagement, Continental has
agreed to pay Salomon Smith Barney for its services in connection with the
Merger an aggregate financial advisory fee equal to 0.70% of the total
consideration (including liabilities assumed) payable in the Merger. The
aggregate financial advisory fee payable to Salomon Smith Barney has been
estimated to be approximately $4.6 million. Continental has also agreed to
reimburse Salomon Smith Barney for travel and other out-of-pocket expenses
incurred by Salomon Smith Barney in performing its services, including the
fees and expenses of its legal counsel, and to indemnify Salomon Smith Barney
and related persons against certain liabilities, including liabilities under
the federal securities laws, arising out of Salomon Smith Barney's engagement.
 
  Salomon Smith Barney has advised Continental that, in the ordinary course of
business, Salomon Smith Barney and its affiliates may actively trade or hold
the securities of Continental and Horton for their own account or for the
account of customers and, accordingly, may at any time hold a long or short
position in such securities. Salomon Smith Barney has in the past provided
investment banking and financial advisory services to Continental and Horton
unrelated to the proposed Merger, for which services Salomon Smith Barney has
received compensation. In addition, Salomon Smith Barney and its affiliates
(including Travelers Group Inc. and its affiliates) may maintain relationships
with Continental and Horton and their respective affiliates.
 
  Salomon Smith Barney is an internationally recognized investment banking
firm and was selected by Continental based on its experience, expertise and
familiarity with Continental and its business. Salomon Smith Barney regularly
engages in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, competitive bids,
secondary distributions of listed and unlisted securities, private placements
and valuations for estate, corporate and other purposes.
 
 Opinion of Continental Independent Directors' Financial Advisor
 
  The Independent Directors retained Morgan Stanley to act as their financial
advisor in connection with the Merger. Morgan Stanley was selected by the
Independent Directors to act as their financial advisor based on Morgan
Stanley's qualifications, expertise and reputation, as well as Morgan
Stanley's investment banking relationship and familiarity with Continental. On
December 18, 1997, Morgan Stanley delivered to the Independent Directors an
opinion that, on and as of the date of such opinion, and based on assumptions
made, matters considered, and limits of review, as explained in the opinion,
the consideration to be received by the holders of shares of Continental
Common Stock pursuant to the Merger Agreement is fair from a financial point
of view to such holders.
 
  THE FULL TEXT OF MORGAN STANLEY'S OPINION, DATED AS OF DECEMBER 18, 1997,
WHICH SETS FORTH ASSUMPTIONS MADE, PROCEDURES FOLLOWED, MATTERS CONSIDERED AND
LIMITATIONS ON THE REVIEW UNDERTAKEN, IS ATTACHED AS APPENDIX D. CONTINENTAL
STOCKHOLDERS ARE URGED TO, AND SHOULD, READ MORGAN STANLEY'S OPINION CAREFULLY
AND IN ITS ENTIRETY. MORGAN STANLEY'S OPINION IS DIRECTED ONLY TO THE FAIRNESS
OF THE CONSIDERATION PURSUANT TO THE MERGER AGREEMENT FROM A FINANCIAL POINT
OF VIEW TO THE HOLDERS OF CONTINENTAL COMMON STOCK AND IT DOES NOT ADDRESS ANY
OTHER ASPECT OF THE MERGER AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY
HOLDER OF CONTINENTAL COMMON STOCK AS TO HOW TO VOTE AT THE CONTINENTAL
 
                                      44
<PAGE>
 
STOCKHOLDERS MEETING. THE SUMMARY OF THE MATERIAL ELEMENTS OF MORGAN STANLEY'S
OPINION SET FORTH HEREIN IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE FULL
TEXT OF SUCH OPINION.
 
  In connection with rendering its opinion, Morgan Stanley: (i) reviewed
certain publicly available statements and other information of Continental and
Horton; (ii) reviewed certain internal financial statements and other
financial and operating data concerning Continental and Horton prepared by the
managements of Continental and Horton; (iii) reviewed certain financial
projections prepared by the managements of Continental and Horton; (iv)
discussed the past and current operations and financial condition and the
prospects of Continental and Horton with senior executives of Continental and
Horton; (v) reviewed the reported prices and trading activity of the
Continental Common Stock and Horton Common Stock; (vi) compared the financial
performance of Continental and Horton and the prices and trading activity of
the Continental Common Stock and Horton Common Stock with that of certain
other comparable publicly-traded companies and their securities; (vii)
reviewed the financial terms, to the extent publicly available, of certain
comparable acquisition transactions; (viii) reviewed the Merger Agreement and
certain related documents; and (ix) performed such other analyses and
considered such other factors as Morgan Stanley considered appropriate.
 
  In rendering its opinion, Morgan Stanley assumed and relied upon, without
independent verification, the accuracy and completeness of the information
reviewed by Morgan Stanley for the purposes of its opinions. With respect to
the financial projections, Morgan Stanley assumed that they were reasonably
prepared on bases reflecting the best currently available estimates and
judgments of the future financial performances of Continental and Horton. In
addition, Morgan Stanley assumed that the Merger will be consummated in
accordance with the terms set forth in the Merger Agreement, including that
the Merger will be accounted for as a "pooling of interests" business
combination in accordance with U.S. generally accepted accounting principles
and the Merger will be treated as a tax-free reorganization and/or exchange,
each pursuant to the Internal Revenue Code. Morgan Stanley did not make any
independent valuation or appraisal of the assets or liabilities of Continental
and Horton nor was Morgan Stanley furnished with any such appraisals. Morgan
Stanley's opinion was necessarily based on economic, market and other
conditions as in effect on, and the information made available to Morgan
Stanley as of, the dates thereof. Morgan Stanley did not participate in the
sales process and was not authorized to solicit, and did not solicit interest
from any party with respect to the acquisition of the Company or any of its
assets, nor did Morgan Stanley negotiate with any of the parties in connection
with the Merger.
 
  No restrictions or limitations were imposed by the Independent Directors
upon Morgan Stanley with respect to the investigations made or the procedures
followed by Morgan Stanley in rendering its opinion.
 
  The following is a brief summary of the material analyses and examinations
performed by Morgan Stanley in connection with its opinion delivered on
December 18, 1997 and reviewed with the Independent Directors on the same day:
 
  Comparable Company Analysis. As a part of its analysis, Morgan Stanley
compared certain financial information of Continental with corresponding
publicly available information of a group of 17 publicly traded homebuilding
companies that Morgan Stanley considered comparable with Continental (the
"Comparables"). Historical financial information used in connection with the
ratios provided below with respect to the Comparables is as of the most
recently filed and reasonably available Form 10-Q for each at December 12,
1997. Market information used in ratios provided below is as of December 12,
1997. Earnings per share estimates for Continental were based on internal
Continental estimates and Comparables estimates were based on the most
recently available Institutional Brokers Estimate System ("IBES") and/or First
Call estimates. IBES and First Call are data services that monitor and publish
compilations of earnings estimates produced by selected research analysts.
 
  Morgan Stanley compared ratios of certain Continental financial information
to its equity valuation giving effect to the Merger to the same information
for the Comparables. The financial information used in the valuation analysis
was price to book value (which was 1.9x in the case of Continental giving
effect to the Merger and between 1.4x and 2.1x in the case of the Comparables)
and price to 1998 estimated earnings per share (which
 
                                      45
<PAGE>
 
was 12.6x in the case of Continental giving effect to the Merger and between
10.0x and 12.5x for the Comparables). The implied range of values for
Continental Common Stock derived from the analysis of the Comparables' market
price to book value and market price to 1998 estimated earnings per share
ranged from approximately $33.11 to $49.67 per share and $35.50 to $44.38 per
share, respectively.
 
  No company utilized as a comparison in the comparable companies analysis is
identical to Continental. In evaluating the comparable companies, Morgan
Stanley made judgments and assumptions with regard to industry performance,
general business, economic, market and financial conditions and other matters,
many of which are beyond the control of Continental, such as the impact of
competition on Continental and the industry generally, industry growth and the
absence of any adverse material change in the financial condition and
prospects of Continental or the industry or in the financial markets in
general.
 
  Discounted Cash Flow Analysis. Morgan Stanley performed a discounted cash
flow analysis of Continental based on certain financial projections provided
by the management of Continental for the fiscal years 1998 through 2001.
Morgan Stanley discounted the unlevered free cash flows of the Company over
the forecast period at a discount rate of 9.0%, representing an estimated
weighted average cost of capital range for Continental, and terminal values
based on a range of earnings before interest, tax, depreciation and
amortization ("EBITDA") multiples of 7.5x to 9.5x to arrive at a range of
estimated present values for the company. Such estimated present values were
then adjusted for long-term liabilities including debt, net of cash proceeds,
to arrive at an estimated net asset value. Based on this analysis, Morgan
Stanley calculated per share values for Continental ranging from approximately
$33.07 to $48.96.
 
  Historical Exchange Ratio Analysis. Morgan Stanley also computed the average
ratios of Continental Common Stock to Horton Common Stock trading prices over
the latest six month, one year, and three year periods. These ratios ranged
from approximately 1.76x to 1.97x. Morgan Stanley noted that the offer price
represented by the merger consideration of $44.58 per share of Continental
Common Stock represents as of December 12, 1997 a 2.25x ratio and a premium of
49.8% to the closing price of Continental Common Stock on October 3, 1997 (the
last trading day before Continental's public announcement of its intention to
examine strategic alternatives).
 
  Contribution Analysis. Morgan Stanley computed the contribution to the
combined entity's projected pro forma financial results for calendar year 1998
attributable to each of Continental and Horton (based on each Company's
internally prepared estimates). Morgan Stanley's computation showed, among
other things, that Continental and Horton would contribute to the combined
entity approximately 39.8% and 60.2%, respectively, of projected 1998 revenue;
40.1% and 59.9%, respectively, of projected 1998 EBITDA; and 40.4% and 59.6%,
respectively, of projected 1998 EBIT. Morgan Stanley calculated that the
implied exchange ratios equating to these three contribution ratios ranged
from 2.25x-2.30x. Morgan Stanley further calculated that the Exchange Ratio of
2.25x would result in an allocation between the holders of Continental Common
Stock and Horton Common Stock of a pro forma fully diluted ownership of the
combined entity equal to approximately 38% and 62%, respectively.
 
  Analyst Target Price Based Exchange Ratio Analysis. Morgan Stanley reviewed
published "target prices" (expected future values) from selected equity
research analysts for both Continental and Horton Common Stock. Morgan Stanley
reviewed target prices for Continental and Horton on an equal basis (as of
December 12, 1997 and as of the date of Continental's announcement of its
intent to examine strategic alternatives). The range of target prices observed
for Continental was $34.00-$37.00 and the range of target prices for Horton
was $20.00-$20.38, implying an exchange ratio range of between 1.67x and
1.85x.
 
  Precedent Transaction Analysis. As part of its analysis Morgan Stanley
compared certain financial information of the Merger with two precedent
transactions ("Precedent Transactions") between homebuilding companies that
Morgan Stanley deemed reasonably comparable to the Merger. Multiples of book
value and projected earnings implied by the consideration paid in the
Precedent Transactions were compared to the book value and 1998 estimated
earnings per share multiples implied by the Merger. The Precedent Transactions
 
                                      46
<PAGE>
 
consisted of the following (acquiror/acquiree): Lennar Corp./Pacific Greystone
Corp. and Kaufman & Broad Home Corp./Rayco, Ltd. Morgan Stanley noted that the
ratio of price to book value implied in the Merger was 1.9x for Continental
compared to a range of 1.4x to 1.9x for the Precedent Transactions and that
the ratio of acquisition price to 1998 estimated earnings per share multiple
implied in the Merger was 12.6x for Continental compared to a range of from
3.9x to 11.6x for the Precedent Transactions.
   
  Pro Forma Analysis of the Merger. Morgan Stanley analyzed the pro forma
impact of the Merger on Horton's projected earnings per share for the calendar
year 1998 and Horton's debt to book capital and 1998 EBITDA to total debt
ratios. Such analysis was based on projections prepared by Continental and
Horton management and considered the Merger with and without giving effect to
approximately $3.0 million in annual cost savings and other potential
synergies anticipated by Continental management. Morgan Stanley noted that,
assuming the Merger would be treated as a pooling of interests for accounting
purposes, the Merger would be accretive to Horton's earnings per share in 1998
and would reduce Horton's debt to book capital ratio and raise Horton's 1998
EBITDA to total debt coverage ratio. The actual results achieved by the
surviving corporation may vary from projected results and the variations may
be material.     
 
  The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description. Morgan
Stanley believes that its analyses must be considered as a whole and that
selecting portions of its analyses and of the factors considered by it,
without considering all analyses and factors, would create an incomplete view
of the processes underlying its opinions. The range of valuations resulting
from any particular analysis described above should therefore not be taken to
be Morgan Stanley's view of the actual value of Continental or Horton.
 
  In performing its analyses, Morgan Stanley made numerous assumptions with
respect to industry performance, general business and economic conditions and
other matters, many of which are beyond the control of Continental or Horton.
The analyses performed by Morgan Stanley are not necessarily indicative of
actual values, which may be significantly more or less favorable than
suggested by such analyses. Such analyses were prepared solely as part of
Morgan Stanley's analysis of the fairness from a financial point of view to
holders of Continental Common Stock of the merger consideration pursuant to
the Merger Agreement in the Merger and were provided to the Independent
Directors in connection with the delivery of Morgan Stanley's opinion dated
December 18, 1997. The analyses do not purport to be appraisals or to reflect
the prices at which Continental or Horton might actually be sold. In addition,
as described above, Morgan Stanley's opinion and presentation to the
Independent Directors was one of the many factors taken into consideration by
the Independent Directors in making the determination to approve the Merger.
Consequently, the Morgan Stanley analyses described above should not be viewed
as determinative of the Independent Directors' or Continental management's
opinion with respect to the value of Continental or of whether the Independent
Directors or Continental management would have been willing to agree to a
different exchange ratio pursuant to the Merger Agreement.
 
  The consideration to be received by the stockholders of Continental pursuant
to the Merger was determined through negotiations between Continental and
Horton and was approved by the Continental Board including the Independent
Directors. Morgan Stanley provided advice to the Independent Directors in the
latter stages of such negotiations; however, the decision to enter into the
Merger Agreement and to accept the formula of Horton Common Stock for each
share of Continental Common Stock was solely that of the Continental Board.
 
  The Independent Directors retained Morgan Stanley because of its experience
and expertise. Morgan Stanley is an internationally recognized investment
banking and advisory firm. Morgan Stanley, as part of its investment banking
business, is regularly engaged in the valuation of businesses and their
securities in connection with mergers and acquisitions, negotiated
underwritings, competitive biddings, secondary distributions of listed and
unlisted securities, private placements and valuations for corporate and other
purposes. In the course of its market-making and other trading activities,
Morgan Stanley may, from time to time, have a long or short position in, and
buy and sell, securities of Continental or Horton. In the past, Morgan Stanley
and its affiliates have provided financial advisory service to Continental and
have received customary fees in connection with these services.
 
  Continental has agreed to pay Morgan Stanley a fee for its financial
advisory services in connection with the Merger. Continental has paid Morgan
Stanley an advisory fee of $1.5 million: (i) $750,000 paid on the date
 
                                      47
<PAGE>
 
of Morgan Stanley's retention and (ii) $750,000 paid on December 1, 1997. In
addition, Continental has agreed to reimburse Morgan Stanley for its expenses
related to the engagement and to indemnify Morgan Stanley and its affiliates,
their respective directors, officers, agents and employees and each person, if
any, controlling Morgan Stanley, or any of its affiliates against certain
liabilities and expenses, including liabilities under federal securities laws,
in connection with Morgan Stanley's engagement.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
  In considering the recommendations of the Horton Board and the Continental
Board with respect to the Merger Agreement and the transactions contemplated
thereby, stockholders of Horton and Continental should be aware that certain
members of the management of Continental have certain interests in the Merger
that are different from, or in addition to, the interests of stockholders of
Continental generally.
 
  Directors and Officers. The Merger Agreement provides that Horton will use
its best efforts to elect W. Thomas Hickcox, a director and Chief Executive
Officer of Continental, and Bradley S. Anderson, the Interim Chairman of the
Board of Continental, as directors of Horton at the Effective Time.
 
  Indemnification; Directors and Officers Insurance. The Merger Agreement
provides that from and after the Effective Time, Horton will indemnify each
present and former director or officer of Continental to the fullest extent
permitted by applicable law and Horton's Certificate of Incorporation against
any liability or expense incurred in connection with all acts and omissions
arising out of such individuals' service as such. The Merger Agreement further
provides that Horton will maintain (through the continuation of Continental's
existing policy or the purchase of a "tail end" rider), if available, for a
period of not less than three years following the Effective Time,
Continental's current directors' and officers' liability insurance and
indemnification policy; provided that Horton will not be required to expend
more than 150% of the annual premium currently paid by Continental to procure
such insurance. See "THE MERGER AGREEMENT--Certain Covenants--Indemnification
and Insurance." See also "BUSINESS OF CONTINENTAL--Recent Developments" for a
description of a legal proceeding commenced against certain directors of
Continental alleging, among other things, breach of fiduciary duty for failure
to pursue a merger proposal by Horton.
 
 Existing Severance Agreements and Similar Arrangements; Non-Competition
Agreements.
 
  Executive Officer Employment Agreements. Continental entered into employment
agreements with certain executive officers effective as of December 1, 1997,
which will expire on November 30, 1999. Each employment agreement provides
that the executive will (i) participate in any bonus program maintained by
Continental or its successor and (ii) receive employee benefits at a level
generally available to other senior executives. Such employee benefits may not
be reduced except in connection with across-the-board reductions similarly
affecting substantially all senior executives or with such executive's written
consent. Continental or its successor may terminate the agreement (a) for
"Cause" as defined by the agreement, (b) in the event of a "permanent and
total disability" as defined by the agreement, and (c) without "Cause." Each
executive may terminate the agreement for "Good Reason" as defined by the
agreement or for any reason with proper notice. If Continental or its
successor terminates the agreement for "Cause" or due to a "permanent and
total disability," or if the executive terminates the agreement for a reason
other than "Good Reason," the executive will be entitled to receive his or her
base salary and other compensation and benefits actually earned as of the date
of such termination and amounts owed as reimbursement of business expenses
reasonably incurred. If Continental or its successor terminates the agreement
without "Cause" or if the executive terminates the agreement for "Good
Reason," the executive will be entitled to receive, among other things, (u)
his or her base salary and other compensation and benefits actually earned as
of the date of such termination; (v) amounts owed as reimbursement of business
expenses reasonably incurred; (w) a severance benefit described below; (x) a
bonus equal to a portion of his or her regular bonus awarded in the preceding
year with such portion determined by dividing the number of days of his or her
employment during the calendar year by 365 (366 in a leap year); (y) for a
certain period described below, other employee benefits comparable to those
received during the period of employment. The executives subject to these
employment agreements are Mr. Hickcox, Mr. Dickson, Ms. Collins, Mr. Ryan, and
 
                                      48
<PAGE>
 
Mr. Westfall. As amended, Mr. Hickcox's employment agreement provides for,
among other things, an annual salary of $300,000 per annum; a severance
benefit equal to the sum of his annual rate of base salary plus the average of
his three highest annual bonuses for any of the preceding five calendar years;
other employee benefits for a period of three years; and if any payment or
benefit would be subject to an excise tax or other penalties imposed by
Section 4999 of the Internal Revenue Code, an additional payment (the "gross-
up payment") such that the net amount retained by Mr. Hickcox after payment of
the excise tax and any other applicable taxes incident to such payments and
the "gross-up payment" will be equal to the amounts described above in this
sentence. As amended, Mr. Dickson's employment agreement provides for, among
other things, an annual salary of $176,000 per annum; a severance benefit
equal to the sum of his annual rate of base salary plus the average of his or
her three highest annual bonuses for any of the preceding five calendar years;
and other employee benefits for a period of two years. The other three
executives' employment agreements each provide for, among other things, an
annual salary of $150,000 per annum, in the case of Ms. Collins and Mr. Ryan,
and $165,000, in the case of Mr. Westfall; a severance benefit equal to two
times the sum of his or her annual rate of base salary plus the average of his
or her three highest annual bonuses for any of the preceding five calendar
years; and other employee benefits for a period of two years.
 
  On December 18, 1997, Mr. Hickcox and Mr. Dickson agreed with Horton to
amend their respective employment agreements effective as of the Effective
Time. Pursuant to these amendments, Mr. Hickcox and Mr. Dickson agreed, for a
period of the later of two years after the Effective Time or one year after he
leaves the employ of the surviving corporation, not to compete with the
surviving corporation within a specified territory that includes the regions
in which Continental has done business for the preceding twelve calendar
months. In consideration for their execution of the non-competition amendment
to their respective employment agreements, Horton agreed (A) to grant to Mr.
Hickcox and Mr. Dickson each an option to acquire 100,000 shares of Horton
Common Stock at the fair market value as of the date of the grant and vesting
over a ten-year period, pursuant to Horton's 1991 Stock Option Plan; (B) to
set their annual bonus payable under the executive bonus program during the
first two years following the Merger at 1.5%, in the case of Mr. Hickcox, and
1.25%, in the case of Mr. Dickson, of the annual pre-tax earnings of the
Continental region, except that, if such region is amalgamated with additional
operations, Horton and Messrs. Hickcox and Dickson will negotiate in good
faith a replacement formula for his annual bonus; and (C) if the respective
employment agreements are terminated by Horton without "Cause" or by Mr.
Hickcox or Mr. Dickson, respectively, for "Good Reason," to pay an amount
equal to two times, in the case of Mr. Hickcox, and one times, in the case of
Mr. Dickson, the sum of his annual rate of base salary plus the average of his
three highest annual bonuses for any of the preceding five calendar years.
Based on the pre-tax earnings of the Continental region for the fiscal year
ended May 31, 1997 of $49,751,000, Mr. Hickcox's bonus would have been
$746,265 and Mr. Dickson's bonus would have been $621,888.
 
  Severance Plans for Selected Presidents and Vice Presidents. Continental
enacted severance plans for selected presidents of divisions or subsidiaries
of Continental and selected vice-presidents of Continental and its
subsidiaries. These plans will survive the Merger and Horton will succeed to
the obligations under the plans. Although these plans may be amended or
terminated at any time, no amendment or termination adopted prior to June 1,
1999, in the case of the severance plan for selected presidents, or December
1, 1998, in the case of the severance plan for selected vice-presidents, may
adversely affect the rights of the selected participants. Each plan grants
severance benefits (i) to any participant whose employment is terminated by
Continental or its successor for reasons other than for "Cause" (as defined in
the plan) or "Permanent and Total Disability" (as defined in the plan) or (ii)
to any participant who terminates his or her employment for "good reason" (as
defined in the plan). In the case of the selected presidents, such severance
benefits include, among other things, (a) a severance payment equal to one or
one and a half times the sum of the participant's annual base salary plus the
average of his or her three highest annual bonuses for any of the preceding
five calendar years (for purposes of this calculation, a committee appointed
by the Board of Directors designates the multiple of one or one and a half
times annual base salary at the time the participant is selected to
participate in the plan); (b) a bonus equal to a portion of the participant's
regular bonus awarded in the preceding year with such portion determined by
dividing the number of days of his or her employment during the calendar year
by 365 (366 in a leap year); and (c) for a period of 12 or 18 months
(depending on the multiple previously selected for determining the amount of
the
 
                                      49
<PAGE>
 
severance payment), other employee benefits comparable to those received by
him or her during his or her period of employment. In the case of the selected
vice-presidents, such severance benefits include, among other things, (x)
payment of the participant's base salary for a six month period; (y) a bonus
equal to a portion of the participant's regular bonus awarded in the preceding
year with such portion determined by dividing the number of days of his or her
employment during the calendar year by 365 (366 in a leap year); and (z) for a
period of six months, other employee benefits comparable to those received by
her during his period of employment.
 
  Stock Options. As described herein under "THE MERGER AGREEMENT--Certain
Covenants--Continental Stock Options," the Merger Agreement provides that all
outstanding employee or director options to purchase shares of Continental
Common Stock will be assumed by Horton at the Effective Time, and each stock
option so assumed will be exercisable for that number of shares of Horton
Common Stock equal to the number of shares of Continental Common Stock subject
thereto multiplied by the Exchange Ratio. All directors, other than Ms. Rudd,
whose options will expire upon consummation of the Merger, and all executive
officers listed above have options under which they will receive the foregoing
benefit.
 
ACCOUNTING TREATMENT
 
  The Merger is expected to qualify as a "pooling of interests" for accounting
and financial reporting purposes. Under this method of accounting, the
recorded assets and liabilities of Horton and Continental will be carried
forward to the combined corporation at their recorded amounts, subject to any
adjustments required to conform the accounting policies of the two companies;
income of the combined company will include income of Horton and Continental
for the entire fiscal year in which the Merger occurs; and the reported income
of the separate companies for prior periods will be combined and restated as
income of the combined company. The Merger Agreement provides that a condition
to the consummation of the Merger is the receipt of letters as of the Closing
Date from Horton's and Continental's independent accountants as to the
appropriateness of such accounting for the Merger.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
  THE FOLLOWING DISCUSSION IS INTENDED ONLY AS A SUMMARY OF THE MATERIAL
UNITED STATES FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER AND DOES NOT
PURPORT TO BE A COMPLETE ANALYSIS OF ALL POTENTIAL TAX EFFECTS RELEVANT TO A
DECISION OF WHETHER CONTINENTAL STOCKHOLDERS SHOULD VOTE IN FAVOR OF THE
MERGER. THE DISCUSSION DOES NOT ADDRESS THE TAX CONSEQUENCES THAT MAY BE
RELEVANT TO A PARTICULAR CONTINENTAL STOCKHOLDER SUBJECT TO SPECIAL TREATMENT
UNDER CERTAIN UNITED STATES FEDERAL INCOME TAX LAWS, SUCH AS DEALERS IN
SECURITIES, FINANCIAL INSTITUTIONS, INSURANCE COMPANIES, CERTAIN RETIREMENT
PLANS, TAX-EXEMPT ORGANIZATIONS, NON-UNITED STATES PERSONS AND STOCKHOLDERS,
AND STOCKHOLDERS THAT ACQUIRED CONTINENTAL COMMON STOCK UPON THE EXERCISE OF
EMPLOYEE STOCK OPTIONS OR OTHERWISE AS COMPENSATION, AND DOES NOT ADDRESS ANY
CONSEQUENCES ARISING UNDER THE LAWS OF ANY STATE, LOCALITY OR FOREIGN
JURISDICTION. MOREOVER, THE TAX CONSEQUENCES OF THE MERGER TO HOLDERS OF
CONTINENTAL OPTIONS, CONTINENTAL CONVERTIBLE NOTES AND CONTINENTAL SENIOR
NOTES ARE NOT DISCUSSED. THE DISCUSSION IS BASED UPON THE INTERNAL REVENUE
CODE OF 1986, AS AMENDED, TREASURY REGULATIONS THEREUNDER AND ADMINISTRATIVE
RULINGS AND COURT DECISIONS AS OF THE DATE HEREOF. ALL OF THE FOREGOING ARE
SUBJECT TO CHANGE AND ANY SUCH CHANGE COULD AFFECT THE CONTINUING VALIDITY OF
THIS DISCUSSION. STOCKHOLDERS OF CONTINENTAL ARE URGED TO CONSULT THEIR OWN
TAX ADVISORS REGARDING THE TAX CONSEQUENCES OF THE MERGER TO THEM, INCLUDING
THE EFFECTS OF FEDERAL, STATE, LOCAL, FOREIGN AND OTHER TAX LAWS.
 
                                      50
<PAGE>
 
  The obligations of Horton and Continental to consummate the Merger are
conditioned on the receipt by Horton of an opinion from Gibson, Dunn &
Crutcher LLP, its counsel, and the receipt by Continental of an opinion from
Cahill Gordon & Reindel, its counsel, that the Merger constitutes a
reorganization under Section 368 of the Internal Revenue Code of 1986, as
amended (the "Code") such that the conversion of Continental Common Stock into
Horton Common Stock will be tax-free to the holders of Continental Common
Stock under Section 354(a) of the Code (except with respect to any cash
received in lieu of a fractional share interest in Horton Common Stock). No
ruling has been sought from the Internal Revenue Service as to the United
States federal income tax consequences of the Merger, and the opinions of
counsel will not be binding upon the Internal Revenue Service or any court.
 
  The opinions of counsel will be based in part upon representations made as
of the Effective Time by Horton and Continental, which counsel will assume to
be true, correct and complete. If the representations are inaccurate, the
opinions of counsel could be adversely affected.
 
  Based on the opinions of counsel, the material United States federal income
tax consequences of the Merger are as follows:
 
    (i) No gain or loss will be recognized by a Continental stockholder upon
  the exchange of his or her Continental Common Stock for Horton Common
  Stock, except that a holder of Continental Common Stock who receives cash
  in lieu of a fractional interest in Horton Common Stock will recognize gain
  or loss equal to the difference between such proceeds and the tax basis
  allocated to the fractional share interest. Such gain or loss will
  constitute capital gain or loss if such stockholder's Continental Common
  Stock is held as a capital asset at the Effective Time and will be long-
  term capital gain or loss if it is held for more than one year at the
  Effective Time.
 
    (ii) The tax basis of the Horton Common Stock received by a Continental
  stockholder will be the same as such stockholder's tax basis in the
  Continental Common Stock surrendered in exchange therefor, decreased by the
  tax basis allocated to any fractional share interest exchanged for cash.
 
    (iii) The holding period of the Horton Common Stock received by a
  Continental stockholder will include the period during which the
  Continental Common Stock surrendered in exchange therefor was held
  (provided that such Continental Common Stock was held by such Continental
  stockholder as a capital asset at the Effective Time).
 
  Certain Continental stockholders may be subject to backup withholding at a
rate of 31% on cash payments received in lieu of a fractional share interest
in Horton Common Stock. Backup withholding will not apply, however, to a
stockholder who (i) furnishes a correct taxpayer identification number ("TIN")
and certifies that he or she is not subject to backup withholding on the
substitute Form W-9 included in the letter of transmittal, (ii) provides a
certificate of foreign status on Form W-8, or (iii) is otherwise exempt from
backup withholding. A stockholder who fails to provide the correct TIN on Form
W-9 may be subject to a $50 penalty imposed by the Internal Revenue Service.
 
  Each Continental stockholder will be required to retain records and file
with such stockholder's United States federal income tax return a statement
setting forth certain facts relating to the Merger.
 
REGULATORY APPROVAL
 
  Under the HSR Act and the rules promulgated thereunder by the FTC, the
Merger may not be consummated until notifications have been given and certain
information has been furnished to the Antitrust Division and the FTC and
specified waiting period requirements have been satisfied. Horton and
Continental each filed with the Antitrust Division and the FTC a Notification
and Report Form for certain Mergers and Acquisitions (the "Notification and
Report Form") with respect to the Merger on January 14, 1998. On February 4,
1998, Horton and Continental received notice of early termination of the
waiting period.
 
                                      51
<PAGE>
 
  At any time before or after the Special Meetings, state antitrust
authorities could take action under their antitrust laws as they deem
necessary or desirable in the public interest, including seeking to enjoin the
Merger or seeking the divestiture of assets of Horton or Continental. Such
action could include seeking to enjoin the consummation of the Merger or
seeking divestiture of certain assets of Horton or Continental. Private
parties may also seek to take legal action under the antitrust laws under
certain circumstances. There can be no assurance that a challenge to the
Merger on antitrust grounds will not be made or, if such a challenge is made,
of the result thereof.
 
STOCK EXCHANGE LISTING
 
  It is a condition to the Merger that the shares of Horton Common Stock to be
issued to Continental stockholders in the Merger will have been approved for
listing on the NYSE, subject only to official notice of issuance.
 
CONTINENTAL DEBT
 
  As a result of the Merger, the Continental Convertible Notes will become
convertible into shares of Horton Common Stock. The Continental Convertible
Notes are currently outstanding in the aggregate principal amount of
$86,150,000, have a conversion rate of 42.105 shares of Continental Common
Stock (equivalent to a conversion price of approximately $23.75 per share) per
$1,000 principal amount, and are redeemable at the option of Continental at
certain premiums beginning on November 1, 1998. In the Merger, the Convertible
Notes will become convertible into a number of shares of Horton Common Stock
equal to the product of such conversion rate times the Exchange Ratio. The
Merger will not constitute a "change in control" for the purposes of the
indenture for the Continental Convertible Notes.
 
  The Merger will constitute a "change in control" with respect to the
Continental Senior Notes currently outstanding in the aggregate principal
amount of $150,000,000, and Horton will be required to offer to repurchase
such notes from the holders thereof within 75 days after the Closing Date at a
purchase price of 101% of the principal amount thereof, plus accrued interest.
In addition, the Merger constitutes a "change in control" under Continental's
revolving and warehouse lines of credit, which were outstanding in the
aggregate principal amount of approximately $58 million as of January 12,
1998. Horton expects to finance the purchase of any Continental Senior Notes
as may be tendered for purchase and to refinance Continental's existing
revolving and warehouse lines of credit from Horton's existing credit lines.
The Continental Senior Notes bear interest at the rate of 10% per annum.
Continental's revolving and warehouse lines of credit currently bear interest
at rates ranging from LIBOR plus 135 basis points to LIBOR plus 175 basis
points per annum. Horton's existing credit lines currently bear interest at
rates per annum ranging from LIBOR plus 85 basis points to LIBOR plus 127.5
basis points per annum.
 
CERTAIN FEDERAL SECURITIES LAWS CONSEQUENCES
 
  All shares of Horton Common Stock received by Continental stockholders in
the Merger will be freely transferable, except that (i) shares of Horton
Common Stock received by persons who are deemed to be "affiliates" (as such
term is defined under the Securities Act) of Continental (the "Continental
Affiliates") at the time of the Continental Stockholders Meeting may be resold
by them only in transactions permitted by the resale provisions of Rule 145
promulgated under the Securities Act or as otherwise permitted under the
Securities Act, and (ii) shares of Horton Common Stock received by persons who
are deemed to be affiliates of Horton may be resold by them only in
transactions permitted by Rule 144 promulgated under the Securities Act or as
otherwise permitted under the Securities Act. Persons who may be deemed to be
affiliates of Continental and/or Horton, as the case may be, generally include
individuals or entities that control, are controlled by, or are under common
control with, such person and may include certain officers and directors of
such person as well as principal stockholders of such person. The Merger
Agreement requires Continental to use reasonable efforts cause the Continental
Affiliates to deliver to Horton a letter agreement to the effect that they
will not offer or sell or otherwise dispose of any of the shares of Horton
Common Stock issued to them in the Merger in violation
 
                                      52
<PAGE>
 
of the Securities Act or the rules and regulations promulgated by the
Commission thereunder. In addition, in order to help assure treatment of the
Merger as a pooling of interests, the Merger Agreement requires Horton and
Continental to use their reasonable efforts to cause their affiliates to
deliver to them letter agreements to the effect that they will not transfer
any securities of Horton or Continental, subject to certain de minimis
exceptions, until such time as financial results covering at least 30 days of
post-Merger combined operations of Horton and Continental have been published
by Horton.
 
NO DISSENTERS' RIGHTS
 
  Holders of Continental Common Stock and Horton Common Stock are not entitled
to dissenters' appraisal rights under the DGCL in connection with the Merger
because the Continental Common Stock and the Horton Common Stock were listed
on the NYSE on the Continental Record Date and the Horton Record Date,
respectively, and the Horton Common Stock will be listed on the NYSE at the
Effective Time.
 
                                      53
<PAGE>
 
                             THE MERGER AGREEMENT
 
  The following is a brief summary of the material provisions of the Merger
Agreement, a copy of which is attached as Appendix A to this Joint Proxy
Statement/Prospectus and is incorporated herein by reference. This summary is
qualified in its entirety by reference to the full and complete text of the
Merger Agreement.
 
THE MERGER
 
  Pursuant to the Merger Agreement and subject to the terms and conditions
thereof, Continental will be merged with and into Horton, with Horton as the
surviving corporation. As a result of the Merger, Horton will succeed to the
assets, liabilities and businesses of Continental.
 
  Subject to the terms and conditions of the Merger Agreement, the closing of
the transactions contemplated thereby will take place on a date specified by
the parties to the Merger Agreement, which will be no later than the second
business day after the day on which certain of the conditions set forth
therein have been satisfied or waived (assuming the prior satisfaction or
waiver of all other conditions set forth therein), unless another date is
agreed to by the parties (the date of consummation of the Merger being
"Closing Date"). The Merger will become effective upon the filing of a
certificate of merger with the Secretary of State of the State of Delaware
(the time of such filing being the "Effective Time").
 
MERGER CONSIDERATION
 
  Conversion of Continental Common Stock. At the Effective Time, by virtue of
the Merger and without any action on the part of Horton, Continental or the
holders of any of the securities of Horton or Continental, each share of
Continental Common Stock issued and outstanding immediately prior to the
Effective Time (other than treasury shares, shares held by any direct or
indirect wholly owned subsidiary of Continental and shares held directly or
indirectly by Horton or any direct or indirect wholly owned subsidiary of
Horton) will be converted into the right to receive shares of Horton Common
Stock in an amount equal to the Exchange Ratio (defined below). The Exchange
Ratio shall be determined in accordance with the following:
 
    (i) if the Stock Value (as defined below) is greater than or equal to
  $16.878 and less than or equal to $18.776, the Exchange Ratio shall be
  2.37;
 
    (ii) if the Stock Value is less than $16.878 and greater than $14.50, the
  Exchange Ratio shall equal the quotient obtained by dividing $40.00 by the
  Stock Value (rounded to the nearest one thousandth);
 
    (iii) if the Stock Value is more than $18.776 and less than $19.78, the
  Exchange Ratio shall equal the quotient obtained by dividing $44.50 by the
  Stock Value (rounded to the nearest one thousandth);
 
    (iv) if the Stock Value is less than or equal to $14.50, the Exchange
  Ratio shall be 2.759; provided that the Exchange Ratio shall equal the
  quotient obtained by dividing $35.00 by the Stock Value (rounded to the
  nearest one thousandth) if the Stock Value is less than $12.69 and Horton
  so elects; and
 
    (v) if the Stock Value is more than or equal to $19.78, the Exchange
  Ratio shall be 2.25.
 
If the Stock Value is less than $12.69, Continental may elect to terminate the
Merger Agreement unless Horton elects to have the Exchange Ratio equal the
quotient obtained by dividing $35.00 by the Stock Value. (See "Termination of
the Merger Agreement"). If between the date of the Merger Agreement and the
Effective Time, there shall have been a change in the number of outstanding
shares of Horton Common Stock by reason of a stock split (including a reverse
split) of the Horton Common Stock or a dividend payable in Horton Common Stock
or any other distribution of securities to holders of Horton Common Stock with
respect to their Horton Common Stock (including without limitation such a
distribution made in connection with a recapitalization, reclassification,
merger, consolidation, reorganization or similar transaction), the Exchange
Ratio and the dollar amounts set forth in clauses (i) through (v) above shall
be appropriately adjusted to reflect such change. The term "Stock Value" means
the average of the closing prices of Horton Common Stock as reported for New
York Stock Exchange Composite Transactions for 15 randomly selected trading
days within the 30 consecutive
 
                                      54
<PAGE>
 
trading days ending on the date that is five trading days prior to the
anticipated Closing Date. The selection of trading days will be made by lot,
and the selection process will be supervised jointly by DLJ and Salomon Smith
Barney.
 
  Each share of Continental Common Stock issued and outstanding immediately
prior to the Effective Time (other than treasury shares, shares held by any
direct or indirect wholly owned subsidiary of Continental and shares held
directly or indirectly by Horton or any direct or indirect wholly owned
subsidiary of Horton) will at the Effective Time no longer be outstanding and
will automatically be canceled and retired and will cease to exist, and each
certificate previously evidencing any such shares will thereafter represent
the right to receive only the shares of Horton Common Stock and cash in lieu
of any fractional shares of Horton Common Stock. The holders of such
Certificates will cease to have any rights with respect to the shares of
Continental Common Stock previously represented thereby, except as otherwise
provided in the Merger Agreement or by law. Such Certificates will be
exchanged for certificates evidencing whole shares of Horton Common Stock
issued in consideration therefor. No fractional shares of Horton Common Stock
will be issued and, in lieu thereof, a cash payment will be made as described
below under "Merger Consideration--Fractional Shares."
 
  Treasury Stock, Stock Held by any Direct or Indirect Wholly Owned Subsidiary
of Continental and Stock Owned by Horton or any Direct or Indirect Wholly
Owned Subsidiary of Horton. Each share of Continental Common Stock held in the
treasury of Continental, each share of Continental Common Stock held by any
direct or indirect wholly owned subsidiary of Continental and each share of
Continental Common Stock owned by Horton or any direct or indirect wholly
owned subsidiary of Horton immediately prior to the Effective Time will be
canceled and extinguished without any conversion thereof and no payment will
be made with respect thereto.
 
  Fractional Shares. Each holder of Continental Common Stock exchanged
pursuant to the Merger who would otherwise have been entitled to receive a
fraction of a share of Horton Common Stock (after taking into account all
Certificates delivered by such holder) shall receive, in lieu thereof, cash
(without interest) in an amount equal to such fractional part of a share of
Horton Common Stock multiplied by the per share closing price of Horton Common
Stock on the Closing Date (or, if shares of Horton Common Stock do not trade
on such date, the first day of trading of Horton Common Stock after the
Effective Time). Such payment of cash consideration in lieu of issuing
fractional shares is not separately bargained for consideration, but merely
represents a mechanical rounding off for purposes of simplifying the corporate
and accounting complexities which would otherwise be caused by the issuance of
fractional shares.
 
  No Change in Horton Common Stock. The Merger Agreement provides that the
shares of Horton Common Stock held by Horton stockholders will remain
unchanged in the Merger.
 
CONVERSION PROCEDURE
 
  A letter of transmittal (together with instructions for use in effecting the
exchange of Certificates (defined below) for Merger Consideration) will be
mailed as soon as practicable after the Effective Time to each holder of
record of a certificate or certificates which immediately prior to the
Effective Time represented outstanding shares of Continental Common Stock (the
"Certificates"). Upon surrender of a Certificate for cancellation to the
Exchange Agent, together with a properly executed letter of transmittal, the
holder of such Certificate will be entitled to receive a certificate
representing shares of Horton Common Stock and cash in lieu of any fractional
share of Horton Common Stock and the Certificate surrendered will forthwith be
canceled. If any cash or any certificate representing Horton Common Stock is
to be paid to or issued in a name other than that in which the Certificate
surrendered in exchange therefor is registered, a certificate representing the
proper number of shares of Horton Common Stock may be issued to a person other
than the person in whose name the Certificate so surrendered is registered, if
such Certificate shall be properly endorsed or otherwise be in proper form for
transfer and the person requesting such payment shall pay to the Exchange
Agent any transfer or other taxes required by reason of the issuance of shares
of Horton Common Stock to a person other than the registered holder of such
Certificate or establish to the satisfaction of the Exchange Agent that such
tax has been paid or is not applicable. If, after the Effective Time,
Certificates are presented to the Horton, as the surviving corporation, or the
 
                                      55
<PAGE>
 
Exchange Agent for any reason, they shall be canceled and exchanged as
provided in the Merger Agreement, except as otherwise provided by law.
 
  HOLDERS OF CONTINENTAL COMMON STOCK SHOULD NOT SEND ANY CERTIFICATES
REPRESENTING CONTINENTAL COMMON STOCK WITH THE ENCLOSED PROXY CARD. A LETTER
OF TRANSMITTAL WILL BE MAILED AS SOON AS PRACTICABLE AFTER THE EFFECTIVE TIME
TO EACH HOLDER OF RECORD OF OUTSTANDING CONTINENTAL COMMON STOCK. CONTINENTAL
STOCKHOLDERS SHOULD SEND CERTIFICATES REPRESENTING CONTINENTAL COMMON STOCK TO
THE EXCHANGE AGENT ONLY AFTER THEY RECEIVE, AND ONLY IN ACCORDANCE WITH, THE
INSTRUCTIONS CONTAINED IN THE LETTER OF TRANSMITTAL.
 
CERTAIN REPRESENTATIONS AND WARRANTIES
 
  The Merger Agreement contains customary representations and warranties by
both Horton and Continental as to: (i) due organization and good standing and
corporate power to operate their respective businesses; (ii) ownership of
significant subsidiaries and due organization and good standing and corporate
power to operate the respective businesses of the subsidiaries and other
equity investments in excess of $100,000; (iii) authorized, reserved and
issued capital stock, stock options and similar securities; (iv) corporate
authority to enter into the Merger Agreement and consummate the Merger; (v)
material contracts; (vi) the noncontravention of the Merger Agreement or the
Merger with the charter, bylaws, other agreements, judgments or law; (vii)
required governmental filings and consents; (viii) compliance with applicable
laws or other agreements; (ix) valid possession of and compliance with all
necessary government permits; (x) the filing of certain documents with the
Commission and the accuracy of information contained in such documents; (xi)
the accuracy of information contained in certain financial statements; (xii)
the absence of certain material changes or events; (xiii) the absence of
undisclosed liabilities; (xiv) the absence of certain litigation; (xv) the
absence of material liabilities under and compliance with employee benefit
plans and other compensation arrangements; (xvi) the absence of material labor
disputes; (xvii) the absence of material restrictions on business activities;
(xviii) ownership or rights to acquire certain real property suitable for use
in the respective businesses; (xix) tax matters; (xx) ownership or rights to
use intellectual property; (xxi) the absence of material environmental
liabilities; (xxii) insurance matters; (xxiii) use of brokers, finders and
investment bankers; (xxiv) actions affecting certain tax and accounting
matters; and (xxv) the receipt of certain letters regarding certain accounting
matters.
 
  In addition, Continental has made certain representations and warranties in
the Merger Agreement relating to (i) the absence of certain interested party
transactions; (ii) fairness opinions; (iii) the inapplicability of certain
restrictions under Delaware law and of the Arizona Corporate Takeover Statute;
and (iv) the identity of certain affiliates.
 
  In addition, Horton has made certain representations and warranties in the
Merger Agreement relating to (i) its ability to issue and deliver shares of
Horton Common Stock in the Merger; (ii) its intent to acquire Continental
Common Stock for its own account and not for distribution; and (iii) its
ability to pay certain debts of Continental.
 
CERTAIN COVENANTS
 
  Conduct of Business Pending the Merger. Pursuant to the Merger Agreement,
Horton and Continental have made various customary covenants relating to the
conduct of their respective businesses prior to the Merger. Continental has
agreed that, prior to the Effective Time, it will carry on its business in the
ordinary course in the manner consistent with its practices prior to the date
of the Merger Agreement and will use reasonable commercial efforts to preserve
substantially intact its business organization, to keep available the services
of its present officers, employees and consultants, and to preserve the
relationships with customers, suppliers and other persons with significant
business relationships. Specifically, Continental has agreed, among other
things, that prior to the Effective Time it will not: (i) amend its
certificate of incorporation, bylaws or the organizational documents of its
subsidiaries; (ii) issue, sell, or pledge any shares of its capital stock, any
other voting securities or any securities convertible into, or any rights,
warrants or options to acquire, any such shares, voting securities or
convertible securities (other than the issuance of Continental Common Stock
pursuant to any previously granted stock option or upon conversion of
previously issued convertible notes); (iii) sell, pledge, or encumber
 
                                      56
<PAGE>
 
any of its assets except for (a) sales of assets in the ordinary course of
business consistent with past practice, (b) disposition of obsolete or
worthless assets, (c) sales of immaterial assets not in excess of $100,000
individually, and (d) liens on assets to secure purchase money and
construction financings in the ordinary course of business consistent with
past practice or arising under existing lines of credit; (iv) (x) declare, set
aside, make or pay any dividend or other distribution in respect of any of its
capital stock, except quarterly cash dividends not in excess of $.05 per share
paid in accordance with past practice and except that a wholly owned
Continental subsidiary may declare and pay a dividend or make advances to its
parent or to Continental, (y) split, combine or reclassify any of its capital
stock or issue or authorize or propose the issuance of any other securities in
respect of, in lieu of or in substitution for shares of its capital stock, or
(z) amend the terms or change the period of exercisability of, purchase,
repurchase, redeem or otherwise acquire, any of its securities, including
without limitation shares of Continental Common Stock or any option, warrant
or right, directly or indirectly, to acquire shares of Continental Common
Stock, or propose to do any of the foregoing actions described in this clause
(iv)(z); (v)(A) acquire any business organization or division thereof, (B)
incur or guarantee any indebtedness except under existing lines of credit in
the ordinary course of business consistent with past practice or make any
loans or advances (other than loans or advances to or from Continental
subsidiaries or pursuant to existing contracts or contracts for the
acquisition or development of land entered into in the ordinary course of
business consistent with past practice), (C) enter into or amend any
agreement, other than in the ordinary course of business consistent with past
practice, that is or would be material to Continental and its subsidiaries
taken as a whole, or (D) authorize any capital expenditures or purchase of
fixed assets (other than the purchase of land in the ordinary course of
business consistent with past practice) which are, in the aggregate, in excess
of $100,000 individually or $1,000,000 in the aggregate; (vi) except as may be
required by law, increase the compensation of its officers or employees, grant
any severance pay to any director, officer or other employee, or enter into
any employment or severance agreement with any director, officer or other
employee, or establish or change any other compensation arrangement for the
benefit of any current or former directors, officers or employees, except
increases in annual compensation for employees in the ordinary course of
business consistent with past practice to the extent such compensation
increases do not result in a material increase in compensation expense to
Continental; (vii) change accounting policies or procedures; (viii) make
certain material tax elections or decisions inconsistent with past practice;
or (ix) take any of the foregoing actions or any action which would make any
of the representations or warranties of Continental untrue or incorrect in any
material respect or prevent Continental from performing in any material
respect its covenants under the Merger Agreement.
 
  Horton has agreed that, prior to the Effective Time, it will not: (i) amend
its certificate of incorporation or bylaws other than incident to a stock
split or combination; (ii) (a) declare, set aside, make or pay any dividend in
respect of any of its capital stock, except for quarterly cash dividends paid
out of current earnings and stock dividends and except that a wholly owned
Horton subsidiary may declare and pay a dividend to its parent or Horton or
(b) reclassify any of its capital stock or issue any other security in respect
of, in lieu of or in substitution for shares of its capital stock; (iii)
acquire any business organization or division thereof if such transaction
would prevent or materially delay the consummation of the Merger or if the
amount of consideration exceeds the largest amount of consideration paid by
Horton in an acquisition prior to the date of the Merger Agreement; (iv) issue
any shares of capital stock (except pursuant to stock options issued under
Horton's stock option plans or in any stock dividend) in one transaction or
series of related transactions if the shares so issued constitute more than
15% of the outstanding shares of such class (after giving effect to such
issuance) and (v) take any of the foregoing actions or any action which would
make any of the representations or warranties of Horton untrue or incorrect in
any material respect or prevent Horton from performing in any material respect
its covenants under the Merger Agreement.
 
  No Solicitation. Pursuant to the Merger Agreement, Continental has agreed
that it, its subsidiaries and its officers, directors, employees,
representatives and agents will cease, as of December 18, 1997, any
discussions with any parties with respect to any Third Party Acquisition (as
defined below). Continental, its subsidiaries and its officers, directors,
employees, representatives and agents will not participate in any discussions
or provide any non-public information to any person or group (other than
Horton or any designees of Horton) concerning any Third Party Acquisition;
provided, however, that (i) nothing in the Merger Agreement prevents the
 
                                      57
<PAGE>
 
Continental Board from taking or disclosing to Continental's stockholders a
position contemplated by Rules 14d-9 and 14e-2 promulgated under the Exchange
Act with regard to any tender offer and (ii) Continental may make inquiry of
and participate in discussions with any person or group who has submitted
after the date of the Merger Agreement an unsolicited and unencouraged
Superior Proposal if, and to the extent, the Continental Board determines in
its good faith judgment, as advised by outside legal counsel, that it is
required to do so to comply with its fiduciary duties. Under the Merger
Agreement, the Continental Board may not withdraw its recommendation of the
Merger Agreement or the Merger or approve, recommend or cause Continental to
enter into any agreement with respect to a Third Party Acquisition.
Notwithstanding the foregoing, if the Continental Board determines in its good
faith judgment, as advised by outside counsel, that it is required to do so in
order to comply with its fiduciary duties, the Continental Board may withdraw
its recommendation of the Merger or approve or recommend a Superior Proposal,
but only (i) after providing reasonable notice to Horton and (ii) if Horton
does not, within three business days, make an offer which the Continental
Board determines in its good faith judgment (based on the advice of a
financial advisor of nationally recognized reputation) to be as favorable to
the Continental stockholders as such Superior Proposal; provided, however,
that Continental is not entitled to enter into any agreement with respect to a
Superior Proposal unless and until the Merger Agreement is terminated by its
terms. Any disclosure that the Continental Board may be compelled to make with
respect to the receipt of a proposal for a Third Party Acquisition in order to
comply with its fiduciary duties or Rule 14d-9 or 14e-2 will not violate the
Merger Agreement provided that such disclosure states that no action will be
taken by the Continental Board with respect to the withdrawal of its
recommendation of the Merger or the approval or recommendation of any Third
Party Acquisition except in accordance with the Merger Agreement. A "Third
Party Acquisition" means the occurrence of any of the following events: (A)
the acquisition of Continental by merger or otherwise by any person other than
Horton or any affiliate thereof (a "Third Party"); (B) the acquisition by a
Third Party of more than 35% of the total assets of Continental and
Continental's subsidiaries taken as a whole; (C) the acquisition by a Third
Party of 35% or more of the outstanding Continental Common Stock; (D) the
adoption by Continental of a plan of liquidation or the declaration or payment
of an extraordinary dividend; or (E) the repurchase by Continental or any
Continental subsidiary of more than 35% of the outstanding Continental Common
Stock. A "Superior Proposal" means any bona fide proposal to acquire directly
or indirectly for consideration consisting of cash and/or securities more than
50% of Continental Common Stock then outstanding or all or substantially all
the assets of Continental and otherwise on terms which the Continental Board
determines to be more favorable to Continental's stockholders than the Merger.
 
  Meetings of Stockholders. Pursuant to the Merger Agreement, both Continental
and Horton have agreed to take all necessary action, in accordance with
applicable law and their respective certificates of incorporation and bylaws,
to duly call, give notice of, convene and hold meetings of stockholders as
soon as practicable after the effectiveness of the Registration Statement. The
Continental Board and the Horton Board have agreed to recommend such approval
and to take all lawful action to solicit such approvals. However, the
Continental Board may change its recommendation or withdraw its solicitation
upon its approval of a Superior Proposal in the manner described in "No
Solicitation."
 
  Continental Stock Options. Under the terms of the Merger Agreement, at the
Effective Time, each outstanding option to purchase Continental Common Stock
granted under the Continental stock option plans, whether or not then vested
or exercisable, will be assumed by Horton, in accordance with the terms of the
applicable stock option plan and any stock option agreement by which it is
evidenced. Each stock option so assumed will be exercisable for that number of
shares of Horton Common Stock equal to the number of shares of Continental
Common Stock subject thereto multiplied by the Exchange Ratio, and shall have
an exercise price per share equal to the exercise price per share of
Continental Common Stock divided by the Exchange Ratio. Pursuant to the Merger
Agreement, Horton has agreed, as soon as reasonably practicable after the
Effective Time, to deliver to holders of Continental stock options appropriate
notices setting forth such holders' rights pursuant to the Continental stock
option plans, and any stock option agreement evidencing such stock options
which will continue in full force and effect on the same terms and conditions
as in effect immediately prior to the Effective Time subject to the
adjustments required by the Merger Agreement whereby Horton assumes such
options as adjusted by the Exchange Ratio. Horton has agreed to comply with
the terms of the Continental stock option
 
                                      58
<PAGE>
 
plans, and such agreements as so adjusted. Horton has agreed to take all
corporate action necessary to reserve for issuance a sufficient number of
shares of Horton Common Stock for delivery upon exercise of such stock options
and, as soon as practicable after the Effective Time, to file with the
Commission a registration statement on Form S-8 with respect to such shares
and to use its reasonable efforts to maintain the effectiveness of such
registration statement. The assumption by Horton of the stock options
outstanding under the Continental stock option plans will not reduce the
number of shares of Horton Common Stock that may be subject to future grants
of stock options under Horton's stock option plan.
 
  Board Representation. Pursuant to the terms of the Merger Agreement, Horton
has agreed to use its best efforts, whether through increase in the size of
its Board of Directors or otherwise, to cause the appointment or election as
directors of Horton at the Effective Time of two individuals designated by
Continental. Continental has designated W. Thomas Hickcox and Bradley S.
Anderson for appointment or election as directors of Horton.
 
  Indemnification and Insurance. From and after the Effective Time, Horton has
agreed, to the fullest extent permitted under applicable law and Horton's
Certificate of Incorporation and Bylaws (including Section 145(h) of the
DGCL), to indemnify and hold harmless, each present and former director or
officer of Continental, determined as of the Effective Time (collectively, the
"Indemnified Parties"), against any costs or expenses (including reasonable
attorneys' fees), judgments, fines, losses, claims, damages and liabilities
incurred in connection with, and amounts paid in settlement of, any claim,
action, suit, proceeding or investigation, whether civil, criminal,
administrative or investigative and wherever asserted, brought or filed,
arising out of or pertaining to any acts or omissions or alleged acts or
omissions by them in their capacities as such; provided that, as to claims
existing as of the Effective Time, in no event will Horton be obligated to
provide indemnification in excess of the indemnification that Continental is
required to provide under its Certificate of Incorporation or Bylaws as in
effect as of the date of the Merger Agreement. For a period of three years
after the Effective Time, Horton has agreed to maintain (through the
continuation or endorsement of Continental's existing policy or the purchase
of a "tail-end" rider permitted by such policy) in effect, if available, the
directors' and officers' liability insurance covering those persons who are
currently covered by Continental's directors' and officers' liability
insurance policy on the terms (including the amounts of coverage and the
amounts of deductibles, if any) applicable to them as of the date of the
Merger Agreement; provided that in no event will Horton be required to spend
in excess of 150% of the annual premium currently paid by Continental for such
coverage, and provided further that, if the premium for such coverage exceeds
such amount, Horton will maintain the greatest coverage available for such
150% of the annual premium. Horton's obligation to provide such
indemnification and insurance will survive the Merger. In the event that
Horton or any of its successors or assigns (i) consolidates or merges into any
other person or entity and shall not be the continuing or surviving
corporation or entity in such consolidation or merger, or (ii) transfers all
or substantially all of its properties and assets to any person or entity,
then, and in such case, proper provisions shall be made so that the successors
and assigns of Horton (as the case may be) assume the obligations discussed in
this paragraph.
 
  Employee Benefits. For the period of six months beginning as of the
Effective Time, Horton has agreed to pay salaries and wages and (to the extent
permitted by applicable law) to provide employee benefits to persons who are
employees of Continental or its subsidiaries immediately before the Effective
Time that are at least substantially equivalent in the aggregate to those paid
and provided by Continental and its subsidiaries before the Effective Time
(other than stock options or other equity-based compensation). For the period
of six months beginning at the end of the period described in the preceding
sentence, Horton has agreed to provide, to the extent permitted by applicable
law, employee benefits to such persons that are at least substantially
equivalent in the aggregate to those then provided by Horton and Horton's
subsidiaries generally to their other employees. This agreement by Horton does
not require Horton or any of its subsidiaries to continue the employment or
position of any specific person, but is subject to any employment or severance
agreements in effect as of the date of the Merger Agreement.
 
  Certain Other Covenants. Both Continental and Horton have also agreed: (i)
to use all reasonable efforts in promptly preparing and filing as soon as
practicable notifications under the HSR Act and respond as promptly
 
                                      59
<PAGE>
 
as practicable to any inquiries received from governmental authorities for
additional information or documentation in connection with antitrust matters;
(ii) subject to previously entered confidentiality agreements, upon reasonable
notice and subject to other restrictions, (a) to afford to the officers,
employees, accountants, counsel and other representatives of the other party
reasonable access to all its properties, books, contracts, commitments and
records, (b) to furnish promptly all information concerning its business,
properties and personnel as such other party may reasonably request, and (c)
to make available to the other appropriate individuals for discussion of the
other's business, properties and personnel as such other party may reasonably
request; (iii) to cooperate in the filing of a registration statement on Form
S-4 and obtain all necessary state securities laws, permits or approvals; (iv)
that Horton shall use its reasonable best efforts to file a listing
application with the NYSE, and will use reasonable best efforts to cause such
shares to be listed prior to the Closing Date; (v) to use all reasonable
efforts to obtain certain letters from their respective accountants; (vi) to
use their reasonable efforts to cause each of their respective directors,
executive officers, and affiliates to execute and deliver to Horton an
agreement in the form attached to the Merger Agreement relating to the
disposition of shares of Continental Common Stock, Horton Common Stock, and
the shares of Horton Common Stock issuable pursuant to the Merger; (vii) that
Horton will cause the prompt publication of the combined financial results
after the end of the first calendar quarter to end after the first full
calendar month after the Effective Time; (viii) to give prompt notice of (A)
any event likely to cause any representation or warranty to be untrue or
inaccurate the result of which would have a material adverse effect on the
respective party or (B) any failure to materially comply with any covenant or
agreement, provided that such notice will not affect the remedies available to
the party receiving such notice; (ix) to use all reasonable efforts to take
all actions or other things necessary, proper or advisable to consummate the
Merger and to obtain in a timely manner all material waivers, consents and
approvals and to effect all necessary registrations and filings and otherwise
to satisfy in all material respects all conditions precedent to its
obligations; (x) to consult with each other prior to issuing any press release
or public statement; and (xi) not to take before the Effective Time, and to
use commercially reasonable best efforts not to take after the Effective Time,
any action which would disqualify the Merger as a "pooling of interests" for
accounting purposes or which would prevent the Merger from constituting a tax-
free reorganization (except with respect to cash received in lieu of
fractional shares).
 
CONDITIONS TO THE MERGER
 
  The obligations of Horton and Continental to consummate the Merger are
subject to the fulfillment or waiver of various conditions ("Mutual
Conditions"), including, among others: (i) there is not in effect any
(a) temporary restraining order, preliminary or permanent injunction or other
order issued by any court of competent jurisdiction or other legal restraint
or prohibition preventing the consummation of the Merger or (b) statute, rule,
regulation or order enacted, entered, enforced or applicable to the Merger
which makes the consummation of the Merger illegal; (ii) there has not been
instituted or pending any action or proceeding by any governmental authority
or administrative agency, before any governmental authority, administrative
agency or court of competent jurisdiction, nor has there been in effect any
judgment, decree or order of any governmental authority, administrative agency
or court of competent jurisdiction, seeking to prohibit or limit Horton from
exercising all material rights and privileges pertaining to its ownership of
the assets of Continental taken as a whole or the ownership or operation by
Horton or any Horton Subsidiary of all or a material portion of the business
or assets of Horton as the surviving corporation and its subsidiaries taken as
a whole, or seeking to compel Horton or any Horton subsidiary to dispose of or
hold separate all or any material portion of the business or assets of Horton
as the surviving corporation and its subsidiaries taken as a whole, as a
result of the Merger or the transactions contemplated by the Merger Agreement;
(iii) the expiration or termination of the applicable waiting period under the
HSR Act; (iv) approval by the stockholders of Horton and Continental of the
Horton Proposal and the Continental Proposal, respectively; (v) the listing on
the NYSE of the Horton Common Stock to be issued in connection with the
Merger, subject to official notice of issuance; (vi) the effectiveness of the
Registration Statement and the absence of any stop order suspending the
effectiveness thereof and no proceeding for that purpose having been initiated
by the Commission or any state regulatory authorities; and (vii) the receipt
of all consents, authorizations, orders and approvals of (or filings or
registrations with) any governmental commission, board or other regulatory
body, the absence of which would have a material adverse effect on the
 
                                      60
<PAGE>
 
Horton (before or as surviving corporation after the Merger), any Horton
subsidiary or any Continental subsidiary, except for filings in connection
with the Merger and any other documents required to be filed after the
Effective Time.
 
  The obligation of Horton to consummate the Merger is subject to the
fulfillment or waiver of certain conditions ("Horton Conditions"), including,
among others: (i) the representations and warranties made by Continental in
the Merger Agreement are true as of the Closing Date with the same effect as
if made as of the Closing Date (except to the extent such representations or
warranties specifically relate to an earlier date, in which case such
representations and warranties shall have been true as of the earlier date),
except for such untruths or inaccuracies that would not, individually or in
the aggregate, have a material adverse effect on Continental, and Continental
shall have performed and complied in all material respects with all agreements
and covenants set forth in the Merger Agreement to be performed or complied
with by it on or prior to the Closing Date; (ii) the receipt of a certificate,
executed by a duly authorized officer of Continental, dated the Closing Date,
certifying as to the fulfillment of the conditions described in the preceding
clause (i); (iii) the qualification of the Merger for "pooling of interests"
accounting treatment and the receipt of a letter as of the Closing Date from
Horton's independent accountants as to the appropriateness of such accounting
for the Merger; and (iv) the receipt of a tax opinion.
 
  The obligation of Continental to consummate the Merger is subject to the
fulfillment or waiver of certain conditions ("Continental Conditions"),
including, among others: (i) the representations and warranties made by Horton
in the Merger Agreement are true as of the Closing Date with the same effect
as if made as of the Closing Date (except to the extent such representations
or warranties specifically relate to an earlier date, in which case such
representations and warranties shall have been true as of the earlier date),
except for such untruths or inaccuracies that would not, individually or in
the aggregate, have a material adverse effect on Horton, and Horton shall have
performed and complied in all material respects with all agreements and
covenants set forth in the Merger Agreement to be performed or complied with
by it on or prior to the Closing Date; (ii) the receipt of a certificate,
executed by a duly authorized officer of Horton, dated the Closing Date,
certifying as to the fulfillment of the conditions described in the preceding
clause (i); (iii) the qualification of the Merger for "pooling of interests"
accounting treatment and the receipt of a letter as of the Closing Date from
Continental's independent accountants to such effect; and (iv) the receipt of
a tax opinion.
 
  Whether Horton or Continental would be willing to waive any particular
condition, if it were to become evident that any such condition could not be
satisfied, would depend on all the facts and circumstances pertaining to such
event.
 
TERMINATION OF THE MERGER AGREEMENT
 
  The Merger Agreement may be terminated at any time prior to the Effective
Time, whether before or after the approval by Horton's or Continental's
stockholders of the Horton Proposal or Continental Proposal, as applicable:
(i) by mutual written consent of Horton and Continental; (ii) by either Horton
or Continental under the following circumstances: (a) if, upon a vote at a
duly held meeting of stockholders or any adjournment thereof, any required
approval of the holders of Continental Common Stock shall not have been
obtained; (b) if the Merger is not consummated on or before May 31, 1998,
unless the failure to consummate the Merger is the result of a willful and
material breach of the Merger Agreement by the party seeking to terminate the
Merger Agreement; (c) if a court of competent jurisdiction or governmental,
regulatory or administrative agency or commission shall have issued a
nonappealable final order, decree or ruling or taken any other action having
the effect of permanently restraining, enjoining or otherwise prohibiting the
Merger (provided that the right to terminate the Merger Agreement under this
clause (c) is not available to any party who has not complied with its
obligations to use all reasonable efforts to take all actions or other things
necessary, proper or advisable to consummate and make effective as promptly as
practicable the Merger, to obtain in a timely manner all material waivers,
consents and approvals and to effect all necessary registrations and filings,
and otherwise to satisfy in all material respects all conditions precedent to
its obligations under the Merger Agreement and such noncompliance materially
contributed to the issuance of any such order, decree or ruling or the taking
of such
 
                                      61
<PAGE>
 
action); (d) if the other party materially breaches any representation,
warranty, covenant or other agreement contained in the Merger Agreement which
would give rise to the failure of certain Conditions to the Merger described
above (a "Terminating Breach") (provided the terminating party is not then in
material breach of any representation, warranty, covenant or other agreement
contained in the Merger Agreement), provided that, if such Terminating Breach
is curable by Continental or Horton, as the case may be, through the exercise
of its reasonable efforts and for so long as Continental or Horton, as the
case may be, continues to exercise such reasonable efforts, neither Horton nor
Continental, respectively, may terminate the Merger Agreement for the reason
described in this clause (ii)(d); or (e) if, upon a vote at a duly held
meeting of stockholders or any adjournment thereof, any required approval of
the holders of the Horton Common Stock shall not have been obtained; (iii) by
either Horton or Continental in the event that (x) all of such party's Mutual
Conditions have been satisfied and (y) any Continental or Horton Condition, as
the case may be, is not capable of being satisfied prior to May 31, 1998; (iv)
by Continental if the Continental Board has received a Superior Proposal (as
defined below), the Continental Board by requisite vote determines in its good
faith judgment, as advised by outside counsel, that it is required to do so in
order to comply with its fiduciary duties, withdraws its recommendation of the
Merger or approves or recommends such Superior Proposal, and the Continental
Board complies with the applicable provisions described in "Termination Fee;
Payment of Expenses," including the payment of the Termination Fee, and the
provisions described in "Certain Covenants--No Solicitation," including
providing Horton the opportunity to make an offer which the Continental Board
by requisite vote determines in its good faith judgment (based on the advice
of a financial advisor of nationally recognized reputation) to be as favorable
to the Continental stockholders as such Superior Proposal; (v) by Horton if
the Continental Board shall have recommended to the Continental stockholders a
Superior Proposal, or the Continental Board shall have withdrawn its
recommendation of the Merger Agreement or the Merger, provided that any
disclosure that the Continental Board is compelled to make of the receipt of a
proposal for a Third Party Acquisition (as defined below) in order to comply
with its fiduciary duties or Rule 14d-9 or 14e-2 of the Exchange Act shall not
in and of itself constitute the withdrawal of its recommendation of the Merger
or the approval or recommendation of any Third Party Acquisition except as
described in "Certain Covenants--No Solicitation"; or (vi) by Continental if
the Stock Value is less than $12.69, unless prior to the Closing Date Horton
elects to have the Exchange Ratio equal to the quotient obtained by dividing
$35.00 by the Stock Value (rounded to the nearest one thousandth). A "Superior
Proposal" means any bona fide proposal to acquire directly or indirectly for
consideration consisting of cash and/or securities more than 50% of
Continental Common Stock then outstanding or all or substantially all the
assets of Continental and otherwise on terms which the Continental Board by
requisite vote determines in its good faith judgment (based on the advice of a
financial advisor of nationally recognized reputation) to be more favorable to
Continental's stockholders than the Merger. A "Third Party Acquisition" means
the occurrence of any of the following events: (A) the acquisition of
Continental by merger or otherwise by any person other than Horton or any
affiliate thereof (a "Third Party"); (B) the acquisition by a Third Party of
more than 35% of the total assets of Continental and Continental's
subsidiaries taken as a whole; (C) the acquisition by a Third Party of 35% or
more of the outstanding Continental Common Stock; (D) the adoption by
Continental of a plan of liquidation or the declaration or payment of an
extraordinary dividend; or (E) the repurchase by Continental or any
Continental subsidiary of more than 35% of the outstanding Continental Common
Stock. See "Termination Fee; Payment of Expenses."
 
TERMINATION FEE; PAYMENT OF EXPENSES
 
  Generally, Horton and Continental will each pay their own expenses in
connection with the Merger. However, the Merger Agreement provides that
Continental is required to pay to Horton the amount of $12,000,000 (the
"Termination Fee") immediately upon the occurrence of any of the following
events: (i) Horton terminates the Merger Agreement because the Continental
Board shall have recommended to the Continental stockholders a Superior
Proposal, or the Continental Board shall have withdrawn its recommendation of
the Merger Agreement or the Merger as described in "Termination of the Merger
Agreement;" (ii) Continental terminates the Merger Agreement because the
Continental Board has received a Superior Proposal, which the Continental
Board determines in its good faith judgment, as advised by outside counsel,
that it is required to do so in order to comply with its fiduciary duties,
withdraws its recommendation of the Merger
 
                                      62
<PAGE>
 
or approves or recommends such Superior Proposal as described in "Termination
of the Merger Agreement;" (iii) Horton terminates the Merger Agreement
pursuant to a Terminating Breach by Continental and within twelve months
thereafter Continental enters into an agreement with respect to a Third Party
Acquisition or a Third Party Acquisition occurs involving any party (or any
affiliate thereof) (a) with whom Continental (or its agents) had negotiations
with a view to a Third Party Acquisition, (b) to whom Continental (or its
agents) furnished information with a view to a Third Party Acquisition or (c)
who had submitted a proposal or expressed an interest in a Third Party
Acquisition, in the case of each of clauses (a), (b) and (c), prior to such
termination; or (iv) either party terminates the Merger Agreement pursuant to
its right to do so if, upon a vote at a duly held meeting of stockholders or
any adjournment thereof, any required approval of the holders of Continental
Common Stock shall not have been obtained and at the time of the Continental
stockholders meeting at which Continental failed to obtain the requisite vote
there was outstanding an offer by a Third Party to consummate a Third Party
Acquisition involving the payment of consideration to stockholders of
Continental with a value in excess of the value of the shares of Horton Common
Stock to be received pursuant to the Merger Agreement and within twelve months
thereafter Continental enters into an agreement with respect to such Third
Party Acquisition or such Third Party Acquisition occurs.
 
  In the event the Merger Agreement is terminated by Horton or (when a
proposal for a Third Party Acquisition is pending) Continental, pursuant to
its right to do so if, upon a vote at a duly held meeting of stockholders or
any adjournment thereof, any required approval of the holders of Continental
Common Stock shall not have been obtained, and at the time of termination
Horton is not in breach of its material obligations, Continental shall,
promptly after termination of the Merger Agreement, reimburse Horton for all
documented out-of-pocket expenses and fees whether incurred prior to, on or
after the date of the Merger Agreement, in connection with the Merger and the
consummation of all the transactions contemplated by the Merger Agreement;
provided that in no event shall Continental be required to pay in excess of an
aggregate of $1,500,000 pursuant to this sentence. If Continental is required
to pay to Horton the Termination Fee upon the occurrence of the event
described in clause (iv) of the first sentence to the preceding paragraph, the
amount to be paid shall be reduced by any amount theretofore paid pursuant to
the preceding sentence. In the event the Merger Agreement is terminated by
Continental pursuant to its right to do so if, upon a vote at a duly held
meeting of stockholders or any adjournment thereof, any required approval of
the holders of Horton Common Stock shall not have been obtained, and at the
time of termination Continental is not in breach of its material obligations,
Horton shall, promptly after termination of the Merger Agreement, reimburse
Continental for all documented out-of-pocket expenses and fees whether
incurred prior to, on or after the date of the Merger Agreement, in connection
with the Merger and the consummation of all the transactions contemplated by
the Merger Agreement; provided that in no event shall Horton be required to
pay in excess of an aggregate of $1,500,000 pursuant to this sentence.
 
                              BUSINESS OF HORTON
 
  General. Horton is engaged primarily in the construction and sale of single-
family homes in metropolitan areas of the Mid-Atlantic, Midwest, Southeast,
Southwest, and West regions of the United States. Horton offers high-quality
homes with custom features, designed principally for the entry-level and move-
up market segments. Horton's homes generally range in size from 1,000 to 5,000
square feet and range in price from $80,000 to $600,000. For the year ended
September 30, 1997, Horton closed homes with an average sales price
approximating $166,700.
   
  Horton is one of the most geographically diversified homebuilders in the
United States, with operating divisions in 21 states and 35 markets. These
markets include Albuquerque, Atlanta, Austin, Birmingham, Charleston,
Charlotte, Chicago, Cincinnati, Dallas/Fort Worth, Denver, Greensboro,
Greenville and Hilton Head, S.C., Houston, Jacksonville, Kansas City, Las
Vegas, Los Angeles, Minneapolis/St. Paul, Myrtle Beach, S.C., Nashville, New
Jersey, Orlando, Newport News, Va., Pensacola, Phoenix, Raleigh/Durham,
Richmond, Salt Lake City, San Diego, South Florida, St. Louis, Tucson,
Wilmington, N.C. and Suburban Washington, D.C.     
 
                                      63
<PAGE>
 
  Horton was incorporated in Delaware on July 1, 1991, to acquire all of the
assets and businesses of 25 predecessor companies, which were residential home
construction and development companies owned or controlled by Donald R.
Horton.
 
  Horton's principal executive offices are located at 1901 Ascension
Boulevard, Suite 100, Arlington, Texas 76006, and its telephone number is
(817) 856-8200.
 
  Recent Developments. On February 17, 1998, Horton completed the acquisition
(the "Dobson Acquisition") of all of the stock of C. Richard Dobson Builders,
Inc. and certain of its affiliated companies (collectively, "Dobson") for
$22.9 million, subject to downward adjustment. In the acquisition Horton also
refinanced approximately $49.2 million of Dobson's debt.
 
  Dobson is engaged in the construction and sale of high-quality, single-
family homes targeted for the entry-level and move-up markets. Dobson is a
leading builder in the Southeast with operations in eleven markets
including: Greenville, Charleston, Myrtle Beach and Hilton Head, South
Carolina; Charlotte, Greensboro, Raleigh and Wilmington, North Carolina;
Richmond and Newport News, Virginia; and Jacksonville, Florida. Dobson's homes
generally range in size from 1,200 to 3,500 square feet and in price from
$90,000 to $300,000, with an average selling price of approximately $155,000
for its fiscal year ended August 31, 1997. During the fiscal year ended August
31, 1997, Dobson closed 827 homes, generating revenues of $128.3 million. At
the time of the acquisition, Dobson had 293 homes, with a value of
approximately $48.0 million, in backlog of homes under contract.
 
  Horton believes that the Dobson Acquisition will be consistent with its
strategy of selectively pursuing acquisition of homebuilders that have an
excellent reputation, a track record of profitability and a strong management
team.
 
                            BUSINESS OF CONTINENTAL
 
  General. Continental designs, constructs and sells high quality single-
family homes targeted primarily to entry-level and first-time move-up
homebuyers. Continentals' homes generally range in size from 1,000 to 4,000
square feet and range in price from $59,000 to $435,000. For the year ended
May 31, 1997, Continental closed homes with an average sales price
approximating $139,000. Continental is the largest non-retirement homebuilder
in the Phoenix market and the largest homebuilder in the Austin market.
Continental entered the Austin, San Antonio, South Florida and Dallas markets
in July 1993, January 1994, November 1994 and June 1996, respectively, through
acquisitions of existing homebuilders. In July 1996, Continental began selling
homes at "Arizona Traditions," its first active adult community. The community
has approximately 1,800 home sites, a golf course, community center and many
other amenities. Continental complements its homebuilding activities by
providing mortgage banking services to its homebuyers and to third parties in
all locations.
 
  Continental was incorporated in Delaware in June 1986. Continental's
principal executive offices are located at 7001 N. Scottsdale Road, Suite
2050, Scottsdale, Arizona 85253; its telephone number is (602) 483-0006.
 
  Recent Developments. On December 11, 1997, Continental was named a nominal
defendant, and certain directors of Continental were named defendants, in a
purported class action suit brought by Brickell Partners filed in the State of
Delaware alleging breach of fiduciary duty for failure to proceed with a
merger proposal by Horton. Continental does not believe this litigation will
have a material adverse effect on its financial position or operating results.
 
                                      64
<PAGE>
 
                  COMPARATIVE PER SHARE PRICES AND DIVIDENDS
 
HORTON
 
  Horton Common Stock is listed and traded on the NYSE. The following table
sets forth the high and low sales prices per share of Horton Common Stock as
reported for NYSE Composite Transactions, and the dividends paid on Horton
Common Stock, for the calendar quarterly periods presented below:
 
<TABLE>   
<CAPTION>
                                                                 HORTON
                                                              COMMON STOCK
                                                         -----------------------
                                                          HIGH   LOW   DIVIDENDS
                                                         ------ ------ ---------
<S>                                                      <C>    <C>    <C>
1995:
 Quarter Ended March 31................................. $ 6.30 $ 5.31      --
 Quarter Ended June 30..................................   8.93   5.61      --
 Quarter Ended September 30.............................  10.50   8.52      --
 Quarter Ended December 31..............................  11.00   8.91      --
1996:
 Quarter Ended March 31................................. $11.92 $ 8.91      --
 Quarter Ended June 30..................................  10.75   8.63      --
 Quarter Ended September 30.............................  10.38   7.50      --
 Quarter Ended December 31..............................  11.38   8.63      --
1997:
 Quarter Ended March 31................................. $13.00 $10.13  $  0.02
 Quarter Ended June 30..................................  12.50   9.00     0.02
 Quarter Ended September 30.............................  17.25  10.19     0.02
 Quarter Ended December 31..............................  21.00  15.00     0.02
1998
 First Quarter (through March 5, 1998).................. $23.63 $16.56  $0.0225
</TABLE>    
   
  On December 18, 1997, the last full trading day prior to announcement of the
proposed Merger, the closing price per share of Horton Common Stock as
reported for NYSE Composite Transactions was $19.25. On March 5, 1998, the
closing price per share of Horton Common Stock as reported for the NYSE
Composite Transactions was $23.06. Stockholders are urged to obtain current
market quotations.     
 
CONTINENTAL
 
  Continental Common Stock is listed and traded on the NYSE. The following
table sets forth the high and low sales prices per share of Continental Common
Stock as reported for NYSE Composite Transactions, and the dividends paid on
Continental Common Stock, for the calendar quarters presented below:
 
<TABLE>   
<CAPTION>
                                                               CONTINENTAL
                                                              COMMON STOCK
                                                         -----------------------
                                                          HIGH   LOW   DIVIDENDS
                                                         ------ ------ ---------
<S>                                                      <C>    <C>    <C>
1995:
 Quarter Ended March 31................................. $14.13 $11.00   $0.05
 Quarter Ended June 30..................................  17.88  11.50    0.05
 Quarter Ended September 30.............................  22.63  16.63    0.05
 Quarter Ended December 31..............................  24.88  17.75    0.05
1996:
 Quarter Ended March 31................................. $25.25 $19.75   $0.05
 Quarter Ended June 30..................................  26.00  20.00    0.05
 Quarter Ended September 30.............................  21.63  17.13    0.05
 Quarter Ended December 31..............................  21.38  16.00    0.05
1997:
 Quarter Ended March 31................................. $22.13 $16.38   $0.05
 Quarter Ended June 30..................................  18.50  15.38    0.05
 Quarter Ended September 30.............................  29.44  17.63    0.05
 Quarter Ended December 31..............................  40.63  28.63    0.05
1998
 First Quarter (through March 5, 1998).................. $48.63 $39.06   $0.05
</TABLE>    
 
                                      65
<PAGE>
 
   
  On December 18, 1997, the last full trading day prior to announcement of the
Merger, the closing price per share of Continental Common Stock as reported
for NYSE Composite Transactions was $35.06. On March 5, 1998, the closing
price per share of Continental Common Stock as reported for NYSE Composite
Transactions was $48.13. Stockholders are urged to obtain current market
quotations.     
 
EQUIVALENT PRO FORMA VALUE
   
  The equivalent pro forma value of one share of Continental Common Stock on
December 18, 1997 and March 5, 1998, calculated by multiplying the closing
price of one share of Horton Common Stock on the dates listed above by the
Exchange Ratio that would have been in effect if the Merger had been
consummated and the Stock Value equaled the closing price per share of the
Horton Common Stock on such dates, is $44.50 and $51.89, respectively.     
 
POST-MERGER DIVIDEND POLICY
 
  Horton has paid a quarterly cash dividend to holders of Horton Common Stock
since February 1997. It is the current intention of the Horton Board to
declare dividends on the Horton Common Stock following the Merger initially in
the amount of $.0225 per share per quarter, or $.09 per share per year. Future
dividends will be determined by the Horton Board in light of the results of
operations and financial condition of Horton and such other factors as the
Horton Board considers relevant.
 
                                      66
<PAGE>
 
          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
  The following unaudited pro forma condensed combined financial statements,
including the notes thereto, are qualified in their entirety by reference to,
and should be read in conjunction with, the historical consolidated financial
statements of Horton and Continental, including the notes thereto,
incorporated herein by reference.
 
  The unaudited pro forma condensed combined financial statements assume a
business combination between Horton and Continental accounted for on a
pooling-of-interests basis and are based on each company's respective
historical audited and unaudited consolidated financial statements and notes
thereto, which are incorporated herein by reference except for Continental's
1997 financial statements. The unaudited pro forma condensed combined balance
sheet combines Horton's and Continental's consolidated condensed balance
sheets as of December 31, 1997, giving effect to the Merger as if it had
occurred on December 31, 1997.
 
  The unaudited pro forma combined condensed statements of income combine
Horton's historical results for each of the three months ended December 31,
1996 and 1997, and each of the years ended September 30, 1995, 1996 and 1997,
with Continental's historical results for each of the three months ended
December 31, 1996 and 1997, each of the years ended May 31, 1995 and 1996, and
the twelve months ended September 30, 1997, respectively, giving effect to the
Merger as if it had occurred on October 1, 1994. Additionally, the unaudited
pro forma combined condensed statements of income for the year ended September
30, 1997, and the three months ended December 31, 1996, contain the results of
operations of Torrey prior to its acquisition by Horton.
 
  As permitted by Commission regulations, Continental's four-month period
ending September 30, 1996 has been omitted from the unaudited pro forma
condensed combined statements of income. Continental's Revenues, Net Income,
and Diluted Net Income Per Share were $234.4 million, $11.2 million, and
$1.15, respectively, for such four-month period. Continental's Dividends Per
Common Share during such four-month period amounted to $.05.
 
  The pro forma information is presented for illustrative purposes only and is
not necessarily indicative of the operating results or financial position that
would have occurred if the Merger had been consummated at the beginning of the
earliest period presented, nor is it necessarily indicative of future
operating results or the future financial position of Horton.
 
                                      67
<PAGE>
 
          UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME
 
  YEARS ENDED SEPTEMBER 30, 1995, 1996 AND 1997 FOR HORTON AND YEARS ENDED MAY
  31, 1995 AND 1996 AND TWELVE MONTHS ENDED SEPTEMBER 30, 1997 FOR CONTINENTAL
                (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                HORTON           TORREY      CONTINENTAL            PRO FORMA COMBINED
                         ----------------------  ------  ----------------------  --------------------------
                          1995    1996    1997    1997    1995    1996    1997    1995     1996      1997
                         ------  ------  ------  ------  ------  ------  ------  ------  --------  --------
<S>                      <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>     <C>       <C>
HOMEBUILDING
Revenues................ $437.4  $547.3  $837.3  $80.9   $425.4  $588.9  $730.2  $862.8  $1,136.2  $1,648.4
Cost of sales...........  359.8   449.0   685.4   70.1    350.2   481.0   607.2   710.0     930.0   1,362.7
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
                           77.6    98.3   151.9   10.8     75.2   107.9   123.0   152.8     206.2     285.7
Selling, general and
 administrative
 expense................   44.5    53.9    89.4   12.1     46.4    62.2    73.7    90.9     116.1     175.2
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
                           33.1    44.4    62.5   (1.3)    28.8    45.7    49.3    61.9      90.1     110.5
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
FINANCING
Revenues................    --      --      --     --       6.7    11.5    11.0     6.7      11.5      11.0
Selling, general and
 administrative
 expense................    --      --      --     --       5.6     7.0     8.7     5.6       7.0       8.7
Interest expense........    --      --      --     --       2.4     1.8     0.7     2.4       1.8       0.7
Interest (income).......    --      --      --     --      (2.6)   (2.1)   (1.4)   (2.6)     (2.1)     (1.4)
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
                            --      --      --     --       1.3     4.8     3.0     1.3       4.8       3.0
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
                           33.1    44.4    62.5   (1.3)    30.1    50.5    52.3    63.2      94.9     113.5
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
OTHER
Interest expense........    1.2     1.5     5.2    0.2      5.4     6.0     5.1     6.6       7.5      10.5
Other (income)..........   (0.6)   (1.5)   (2.6)  (2.0)    (0.8)   (0.9)   (2.0)   (1.4)     (2.4)     (6.6)
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
Income before income
 taxes..................   32.5    44.4    59.9    0.5     25.5    45.4    49.2    58.0      89.8     109.6
Income taxes............   12.0    17.0    23.7    0.2     11.6    19.6    20.1    23.6      36.6      44.0
                         ------  ------  ------  -----   ------  ------  ------  ------  --------  --------
Income from continuing
 operations............. $ 20.5  $ 27.4  $ 36.2  $ 0.3   $ 13.9  $ 25.8  $ 29.1  $ 34.4  $   53.2  $   65.6
                         ======  ======  ======  =====   ======  ======  ======  ======  ========  ========
Income from continuing
 operations per common
 share:
  Basic................. $ 0.75  $ 0.89  $ 1.03          $ 1.99  $ 3.71  $ 4.22  $ 0.80  $   1.15  $   1.29
  Diluted...............   0.74    0.87    1.01            1.82    3.00    3.08    0.77      1.06      1.15
Dividends per common
 share..................    --      --   $ 0.06          $ 0.20  $ 0.20  $ 0.20     --        --   $   0.06
                         ======  ======  ======          ======  ======  ======  ======  ========  ========
Weighted average number
 of common shares
 outstanding for
 (millions):
 Basic..................   27.3    30.7    35.1             6.9     7.0     6.9    43.0      46.4      50.9
 Diluted................   27.8    31.4    35.9             8.5     9.5    10.6    46.9      52.9      60.0
                         ======  ======  ======          ======  ======  ======  ======  ========  ========
</TABLE>
 
 
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       68
<PAGE>
 
          UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME
 
                 THREE MONTHS ENDED DECEMBER 31, 1996 AND 1997
                (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<TABLE>
<CAPTION>
                                                                    PRO FORMA
                             HORTON       TORREY   CONTINENTAL      COMBINED
                          --------------  ------  --------------  --------------
                           1996    1997    1996    1996    1997    1996    1997
                          ------  ------  ------  ------  ------  ------  ------  
HOMEBUILDING
- ------------
<S>                       <C>     <C>     <C>     <C>     <C>     <C>     <C>     
Revenues................  $144.4  $231.2  $62.4   $186.9  $187.5  $393.7  $418.7
Cost of sales...........   118.0   187.3   53.1    154.4   155.3   325.5   342.6
                          ------  ------  -----   ------  ------  ------  ------  
                            26.4    43.9    9.3     32.5    32.2    68.2    76.1
Selling, general and
 administrative
 expense................    15.1    25.7    7.5     17.9    20.0    40.5    45.7
                          ------  ------  -----   ------  ------  ------  ------  
                            11.3    18.2    1.8     14.6    12.2    27.7    30.4
                          ------  ------  -----   ------  ------  ------  ------  
FINANCING
- ---------
Revenues................     --      --     --       2.5     3.5     2.5     3.5
Selling, general and
 administrative
 expense................     --      --     --       2.0     2.6     2.0     2.6
Interest expense........     --      --     --       0.1     0.3     0.1     0.3
Interest (income).......     --      --     --      (0.3)   (0.5)   (0.3)   (0.5)
                          ------  ------  -----   ------  ------  ------  ------  
                             --      --     --       0.7     1.1     0.7     1.1
                          ------  ------  -----   ------  ------  ------  ------  
                            11.3    18.2    1.8     15.3    13.3    28.4    31.5
                          ------  ------  -----   ------  ------  ------  ------  
OTHER
- -----
Interest expense........     0.8     1.2    0.2      1.5     1.3     2.5     2.5
Other (income)..........    (0.7)   (0.8)  (0.1)    (0.4)   (0.6)   (1.2)   (1.4)
                          ------  ------  -----   ------  ------  ------  ------  
Income before income
 taxes..................    11.2    17.8    1.7     14.2    12.6    27.1    30.4
Income taxes............     4.4     7.0    0.7      5.6     5.1    10.7    12.1
                          ------  ------  -----   ------  ------  ------  ------  
Income from continuing
 operations.............  $  6.8  $ 10.8  $ 1.0   $  8.6  $  7.5  $ 16.4  $ 18.3
                          ======  ======  =====   ======  ======  ======  ======  
Income from continuing
 operations per common
 share:
 Basic..................  $ 0.21  $ 0.29          $ 1.24  $ 1.09  $ 0.34  $ 0.35
 Diluted................    0.21    0.28            0.89    0.79    0.30    0.31
Dividends per common
 share..................     --   $ 0.02          $ 0.05  $ 0.05     --   $ 0.02
                          ======  ======          ======  ======  ======  ======  
Weighted average number
 of common shares
 outstanding for
 (millions):
 Basic..................    32.4    37.3             6.9     6.9    48.8    52.8
 Diluted................    33.0    38.8            10.6    10.7    57.7    62.8
                          ======  ======          ======  ======  ======  ======  
</TABLE>
     
  See accompanying notes to pro forma condensed combined financial statements.
                                          
                                       69
<PAGE>
 
              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
 
                               DECEMBER 31, 1997
                             (DOLLARS IN MILLIONS)
 
<TABLE>
<CAPTION>
                                                                      PRO FORMA
                                                   HORTON CONTINENTAL COMBINED
                                                   ------ ----------- ---------
<S>                                                <C>    <C>         <C>
                      ASSETS
HOMEBUILDING
Cash.............................................. $ 40.4   $ 32.7    $   73.1
Inventories.......................................  653.2    435.9     1,089.1
Property and equipment, net.......................   12.9      4.0        16.9
Earnest money deposits and other assets...........   28.6     31.3        59.9
Excess of cost over net assets acquired (net).....   30.0      8.8        38.8
                                                   ------   ------    --------
                                                    765.1    512.7     1,277.8
                                                   ------   ------    --------
FINANCING
Mortgage loans held for sale......................    --      34.3        34.3
Other assets......................................    --       0.4         0.4
                                                   ------   ------    --------
                                                      --      34.7        34.7
                                                   ------   ------    --------
                                                   $765.1   $547.4    $1,312.5
                                                   ======   ======    ========
                   LIABILITIES
HOMEBUILDING
Accounts payable and other liabilities............ $ 99.8   $ 51.4    $  151.2
Notes payable.....................................  392.1    303.6       695.7
                                                   ------   ------    --------
                                                    491.9    355.0       846.9
                                                   ------   ------    --------
FINANCING
Notes payable.....................................    --      15.9        15.9
Other liabilities.................................    --       0.4         0.4
                                                   ------   ------    --------
                                                      --      16.3        16.3
                                                   ------   ------    --------
                                                    491.9    371.3       863.2
                                                   ------   ------    --------
Minority interests................................    --       3.7         3.7
                                                   ------   ------    --------
               STOCKHOLDERS' EQUITY
Preferred stock...................................    --       --          --
Common stock......................................    0.4      0.1         0.5
Treasury stock, at cost...........................    --      (2.9)        --
Additional capital................................  211.1     61.0       269.2
Retained earnings.................................   61.7    114.2       175.9
                                                   ------   ------    --------
                                                    273.2    172.4       445.6
                                                   ------   ------    --------
                                                   $765.1   $547.4    $1,312.5
                                                   ======   ======    ========
</TABLE>
 
  See accompanying notes to pro forma condensed combined financial statements.
 
                                       70
<PAGE>
 
     NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
NOTE 1. BASIS OF PRESENTATION
 
  The unaudited pro forma condensed combined income statements combine the
historical income statements of Horton for each of the three months ended
December 31, 1996 and 1997, and the years ended 1995, 1996 and 1997, with the
historical income statements of Continental for each of the three months ended
December 31, 1996 and 1997, the years ended May 31, 1995 and 1996, and the
twelve months ended September 30, 1997, respectively. Additionally, the
Unaudited Pro Forma Condensed Combined Statements of Income for the year ended
September 30, 1997 and the three months ended December 31, 1996 contain the
results of operations of Torrey prior to acquisition.
 
  Horton has a fiscal year ending September 30, and Continental has a fiscal
year ending May 31. Accordingly, the unaudited pro forma condensed combined
financial statements for the year ended September 30, 1997 include
Continental's financial statements conformed to Horton's fiscal year end.
 
  No adjustments have been made in these pro forma financial statements to
conform the accounting policies of the combining companies. The nature and
extent of such adjustments, if any, are not expected to be significant.
 
 Net Income Per Share
 
  In 1997, the Financial Accounting Standards Board issued FAS 128 that
replaced previously reported primary and fully diluted earnings per share with
basic and diluted earnings per share.
 
  Basic net income per share is based upon the weighted average number of
shares of common stock outstanding during each year.
 
  Diluted net income per share is based upon the weighted average number of
shares of common stock outstanding during each year, adjusted for the effects
of dilutive securities.
 
  Net Income per share amounts for all periods presented have been restated
for FAS 128.
 
NOTE 2. PRO FORMA NET INCOME PER SHARE AND NUMBER OF SHARES OUTSTANDING
 
  The number of shares of Horton Common Stock which will be issued in exchange
for the outstanding shares of Continental is based on an Assumed Exchange
Ratio of 2.25 shares of Horton Common Stock for each share of Continental
Common Stock outstanding immediately prior to the Effective Time. The 2.25
Assumed Exchange Ratio was used in preparing the pro forma condensed combined
financial data and the following table provides the pro forma number of shares
to be issued in connection with the Merger:
 
<TABLE>
<CAPTION>
                                                                   (SHARES IN
                                                                   MILLIONS)
   <S>                                                             <C>
   Number of outstanding shares of Continental Common Stock as of
    December 31, 1997.............................................     6.9
   Exchange Ratio.................................................    2.25
                                                                      ----
   Number of shares of Horton Common Stock issued in the Merger...    15.4
   Number of outstanding shares of Horton Common Stock as of
    December 31, 1997.............................................    37.4
                                                                      ----
   Number of shares of Horton Common Stock outstanding after the
    Merger........................................................    52.8
                                                                      ====
</TABLE>
 
  The pro forma combined Net Income Per Share From Continuing Operations for
each of the three months ended December 31, 1996 and 1997, and the year ended
September 30, 1997, is based on the combined weighted average number of common
shares of Horton and Continental for each of the three months ended December
31, 1996 and 1997 and the year ended September 30, 1997, using an Assumed
Exchange Ratio of 2.25 shares of Horton Common Stock for each outstanding
share of Continental Common Stock. The actual number of shares of Horton
Common Stock to be issued in the Merger will be determined prior to the
Effective Time.
 
                                      71
<PAGE>
 
   
  Under the highest Exchange Ratio to which Horton is potentially obligated
under the Merger Agreement, a maximum of 2.759 shares of Horton Common Stock
may be issued for each outstanding share of Continental Common Stock. If an
Exchange Ratio of 2.759 were used, the number of shares of Horton Common Stock
outstanding after the Merger would be 56.3 million. Use of the 2.759 Exchange
Ratio to compute the pro forma combined Net Income Per Share From Continuing
Operations amounts for the year ended September 30, 1997 and each of the three
months ended December 31, 1996 and 1997, would have had the following effects:
    
<TABLE>
<CAPTION>
                                                                 THREE MONTHS
                                                                     ENDED
                                                    YEAR ENDED   DECEMBER 31,
                                                   SEPTEMBER 30, -------------
                                                       1997       1996   1997
                                                   ------------- ------ ------
<S>                                                <C>           <C>    <C>
Pro forma combined net income per share from con-
 tinuing operations:
  Basic...........................................     $1.20      $0.31  $0.33
  Diluted.........................................      1.06       0.27   0.28
</TABLE>
 
NOTE 3. MERGER-RELATED EXPENSES
 
  It is estimated that direct costs of the Merger, consisting primarily of
transaction costs for investment bankers' fees, attorneys' and accountants'
fees, and financial printing and other related charges, approximating $12.0
million will be incurred. Such expenses will be deferred when incurred and
charged to expense upon Consummation of the Merger. They are not recorded in
the pro forma condensed combined financial statements.
 
NOTE 4. PRO FORMA ADJUSTMENTS
 
  Adjustments have been included in the pro forma combined condensed balance
sheet to reflect the Exchange Ratio described in Note 2 above.
 
  The only pro forma adjustment to reflect the effect of the Merger
transaction on the pro forma condensed combined balance sheet at December 31,
1997, was the retirement of Continental treasury stock and the ensuing charge
to Additional Capital.
 
NOTE 5. DIVIDENDS
 
  The pro forma combined Dividends Per Common Share are not necessarily
indicative of dividends to be paid to holders of Horton Common Stock in future
periods. It is the current intention of the Horton Board to declare quarterly
cash dividends following the Merger initially in the amount of $.0225 per
share of Horton Common Stock. Future dividends will be determined by the
Horton Board in light of the earnings and financial condition of Horton and
its subsidiaries and other factors. See "COMPARATIVE PER SHARE PRICES AND
DIVIDENDS--Post-Merger Dividend Policy."
 
NOTE 6. EXTRAORDINARY LOSSES
 
  For the years ended May 31, 1996 and 1995, Continental incurred net
extraordinary losses from the extinguishment of debt of $6.9 million and $0.3
million, respectively. Additionally, the Merger creates a "change of control"
under the Continental Senior Note indenture, which requires the Company to
offer to repurchase such notes at a premium. Were such notes repurchased at
December 31, 1997, Horton would have incurred a net extraordinary loss of $3.0
million.
   
NOTE 7. TORREY PURCHASE     
   
  Purchase accounting adjustments relating to the acquisition of Torrey
principally related to increased valuations of inventory and had the effect of
increasing Horton's cost of sales for the year ending September 30, 1997 by
$5.4 million.     
 
                                      72
<PAGE>
 
                    HISTORICAL AND PRO FORMA CAPITALIZATION
 
  The following table sets forth the capitalization of Horton and Continental
as of December 31, 1997 and the pro forma capitalization of Horton and
Continental after giving effect to the Merger using the Assumed Exchange Ratio
of 2.25. This table should be read in conjunction with the "UNAUDITED PRO
FORMA CONDENSED COMBINED FINANCIAL STATEMENTS" included elsewhere in this
Joint Proxy Statement/Prospectus and the Horton and Continental historical
consolidated financial statements, including the notes thereto, which are
incorporated by reference in this Joint Proxy Statement/Prospectus. See
"INCORPORATION OF CERTAIN INFORMATION BY REFERENCE."
 
<TABLE>
<CAPTION>
                                  HISTORICAL
                              ------------------
                              HORTON CONTINENTAL ADJUSTMENTS(2) PRO FORMA(1)(2)
                              ------ ----------- -------------- ---------------
                                            (DOLLARS IN MILLIONS)
<S>                           <C>    <C>         <C>            <C>
Debt:
  Notes payable.............. $244.7   $ 84.8        $ --          $  329.5
  8 3/8% Senior Notes due
   2004......................  147.4      --           --             147.4
  10% Senior Notes due 2006..    --     148.5          --             148.5
  6 7/8% Convertible
   Subordinated Notes
   due 2002..................    --      86.2          --              86.2
                              ------   ------        -----         --------
    Total debt...............  392.1    319.5          --             711.6
                              ------   ------        -----         --------
Stockholders Equity(1):
  Preferred Stock............    --       --           --               --
  Common stock...............    0.4      0.1          --               0.5(5)
  Treasury stock, at
   cost(3)...................    --      (2.9)         2.9              --
  Additional capital(3)......  211.1     61.0         (2.9)           269.2(5)
  Retained earnings(4).......   61.7    114.2          --             175.9
                              ------   ------        -----         --------
                               273.2    172.4          --             445.6
                              ------   ------        -----         --------
                              $665.3   $491.9        $ --          $1,157.2
                              ======   ======        =====         ========
</TABLE>
- --------
(1) Assumes that none of the Continental Senior Notes will be required to be
    repurchased in connection with the Merger. Horton will be required to
    offer to repurchase such notes at 101% of the principal amount from the
    holders within 75 days of the effective date of the Merger. Also assumes
    that none of the Continental Convertible Notes will be converted in
    connection with the Merger. As a result of the Merger, assuming the
    Assumed Exchange Ratio of 2.25, such notes will be convertible into an
    aggregate of 8.2 million shares of Horton Common Stock.
(2) Does not reflect 2.9 million additional shares of Horton Common Stock
    subject to outstanding options as of December 31, 1997 under Horton's
    stock plan. Also does not reflect 0.6 million additional shares of Horton
    Common Stock subject to outstanding options as of December 31, 1997 under
    Continental's stock plans that will be assumed by Horton in the Merger,
    assuming the Assumed Exchange Ratio of 2.25.
(3) Continental treasury stock is retired and charged to Additional Capital.
(4) The Merger creates a "change of control" under the Continental Senior Note
    indenture, which requires Horton to offer to repurchase such notes at a
    premium. Were such notes repurchased at December 31, 1997, Horton would
    have incurred a net extraordinary loss of $3.0 million.
   
(5) Under the highest Exchange Ratio to which Horton is potentially obligated
    under the Merger Agreement, a maximum of 2.759 shares of Horton Common
    Stock may be issued for each outstanding share of Continental Common
    Stock. If an Exchange Ratio of 2.759 were used, the Pro Forma Common stock
    would be $.6 million and Additional capital would be $269.1 million. There
    would be no change in total pro forma capitalization.     
 
                                      73
<PAGE>
 
                      DESCRIPTION OF HORTON CAPITAL STOCK
   
  Horton's authorized capital stock is 100,000,000 shares of Common Stock, par
value $.01 per share, and 30,000,000 shares of preferred stock, par value $.10
per share. At February 23, 1998, 37,391,761 shares of Horton Common Stock and
no shares of preferred stock were outstanding.     
 
HORTON PREFERRED STOCK
 
  The Horton Board of Directors is authorized, subject to any limitations
prescribed by law, to provide for the issuance of shares of preferred stock
(the "Horton Preferred Stock") in one or more series, and by filing a
certificate pursuant to the applicable law of the State of Delaware, to
establish from time to time the number of shares to be included in each such
series, and to fix the designations, powers, preferences and rights of the
shares of each such series and any qualifications, limitations or restrictions
thereof. The number of authorized shares of Horton Preferred Stock may be
increased or decreased (but not below the number of shares thereof then
outstanding) by the affirmative vote of the holders of a majority of the
shares of Horton Common Stock, without a vote of the holders of the Horton
Preferred Stock, or of any series thereof, unless a vote of any such holders
is required pursuant to the certificate or certificates establishing the
series of Horton Preferred Stock.
 
HORTON COMMON STOCK
 
  Holders of shares of Horton Common Stock are entitled to one vote for each
share held of record on all matters submitted to a vote of stockholders. There
are no cumulative voting rights with respect to the election of directors.
Accordingly, the holder or holders of a majority of the outstanding shares of
Horton Common Stock will be able to elect the entire Board of Directors of
Horton. Holders of Horton Common Stock have no preemptive rights and are
entitled to such dividends as may be declared by the Board of Directors of
Horton out of funds legally available therefor. The Horton Common Stock is not
entitled to any sinking fund, redemption or conversion provisions. On
liquidation, dissolution or winding up of Horton, the holders of Horton Common
Stock are entitled to share ratably in the net assets of Horton remaining
after the payment of all credits and liquidation preferences of Horton
Preferred Stock, if any. The outstanding shares of Horton Common Stock are
duly authorized, validly issued, fully paid and nonassessable. The transfer
agent and registrar for the Horton Common Stock is American Stock Transfer &
Trust Company, New York, New York.
 
  Horton currently has the following provisions in its charter or bylaws which
could be considered to be "anti-takeover" provisions: (i) an article in its
charter prohibiting stockholder action by written consent; (ii) an article in
its charter requiring the affirmative vote of the holders of two-thirds of the
outstanding shares of Horton Common Stock to remove a director; (iii) a bylaw
limiting the persons who may call special meetings of stockholders to the
Board of Directors or a committee thereof so empowered by the Horton Board,
the Horton Bylaws or by law; and (iv) a bylaw providing time limitations for
nominations for election to the Board of Directors or for proposing matters
which can be acted upon at stockholders' meetings. These provisions may have
the effect of delaying stockholder actions with respect to certain business
combinations and the election of new members to the Board of Directors. As
such, the provisions could have the effect of discouraging open market
purchases of Horton Common Stock because they may be considered
disadvantageous by a stockholder who desires to participate in a business
combination or elect a new director. Additionally, the issuance of Horton
Preferred Stock under certain circumstances could have the effect of delaying
or preventing a change of control or other corporate action.
 
  Horton is a Delaware corporation and is subject to Section 203 of the DGCL.
In general, Section 203 prevents an "interested stockholder" (defined
generally as a person owning 15% or more of Horton's outstanding voting stock)
from engaging in a "business combination" with Horton for three years
following the date that person became an interested stockholder unless: (i)
before that person became an interested stockholder, the Board of Directors of
Horton approved the transaction in which the interested stockholder became an
interested stockholder or approved the business combination; (ii) upon
completion of the transaction that resulted in the interested stockholder
becoming an interested stockholder, the interested stockholder owned
 
                                      74
<PAGE>
 
at least 85% of the voting stock of Horton outstanding at the time the
transaction commenced (excluding stock held by persons who are both directors
and officers of Horton or by certain employee stock plans); or (iii) on or
following the date on which that person became an interested stockholder, the
business combination is approved by Horton's Board and authorized at a meeting
of stockholders by the affirmative vote of the holders of at least 66 2/3% of
the outstanding voting stock of Horton (excluding shares held by the
interested stockholder). A "business combination" includes mergers, asset
sales and other transactions resulting in a financial benefit to the
interested stockholder.
 
                      COMPARISON OF STOCKHOLDERS' RIGHTS
 
  General. At the Effective Time, the stockholders of Continental will become
stockholders of Horton. As stockholders of Horton, their rights will be
governed by the DGCL and the Horton Certificate and Horton Bylaws rather than
the Continental Certificate and Continental Bylaws. Following are summaries of
certain differences between the rights of Horton stockholders and the rights
of Continental stockholders. For additional information regarding the rights
of Horton's stockholders, see "DESCRIPTION OF HORTON CAPITAL STOCK" and "THE
SPECIAL MEETINGS--Voting Rights; Votes Required for Approval."
 
  Both Horton and Continental are organized under the laws of the State of
Delaware. Any differences, therefore, in the rights of holders of Horton
capital stock and Continental capital stock arise solely from differences in
their respective certificates of incorporation and bylaws. The Horton
Certificate and Horton Bylaws are substantially similar to the Continental
Certificate and the Continental Bylaws, except for certain matters as
described herein.
   
  Authorized Capital. As of February 23, 1998, the total number of authorized
shares of capital stock of Horton is 130,000,000 consisting of 100,000,000
shares of Horton Common Stock, of which 2,853,924 shares are reserved for
future issuance upon exercise of outstanding stock options, and 30,000,000
shares of Horton Preferred Stock. See "DESCRIPTION OF HORTON CAPITAL STOCK--
Horton Common Stock" and "DESCRIPTION OF HORTON CAPITAL STOCK--Horton
Preferred Stock."     
 
  As of February 23, 1998, the total number of authorized shares of capital
stock of Continental is 22,000,000, consisting of 20,000,000 shares of
Continental Common Stock, of which 263,150 shares are reserved for issuance
upon exercise of outstanding stock options, and 3,627,346 shares are reserved
for future issuance in connection with the Continental Convertible Notes, and
2,000,000 shares of preferred stock.
 
  Removal of Directors. Under the Horton Certificate, no director may be
removed without the affirmative vote of not less than 66 2/3% of the total
voting power of all outstanding shares of voting stock of Horton. The
Continental Bylaws provide that any or all directors may be removed from
office at any time without cause by vote of the stockholders.
 
  Filling Vacancies on the Board of Directors. Pursuant to the Horton Bylaws,
any vacancy in the Horton Board may be filled by the vote of a majority of the
directors then in office, although less than a quorum of the Horton Board, or
by a sole remaining director. Under the Continental Bylaws, any vacancy in the
Continental Board may be filled by the vote of a majority of the remaining
directors, although less than a quorum of the Continental Board.
 
  Stockholder Meetings and Provisions for Notices. The Horton Certificate and
Bylaws provide that special meetings of stockholders may be called only by the
Horton Board, or by a committee of the Horton Board which has been duly
designated by the Horton Board and whose powers and authority include the
power to call such meetings. The Continental Bylaws provide that a special
meeting of stockholders may be called by the Continental Board, the President
or holders of not less than 10% of the outstanding shares entitled to vote.
 
                                      75
<PAGE>
 
  Pursuant to the Horton Bylaws, written notice of every meeting of
stockholders stating the place, date and hour of the meeting and, in the case
of a special meeting, the purpose or purposes for which the meeting is called,
shall be given not less than ten nor more than 60 days before the date of the
meeting.
 
  Pursuant to the Continental Bylaws, written notice of the annual meeting of
stockholders stating the place, day and hour of the annual meeting shall be
given to each stockholder entitled to vote at such meeting between ten and 60
days before the date of such meeting, either personally or by mail. Written
notice of a special meeting must also state at whose direction or request the
meeting is called, and the purpose or purposes for which the meeting is
called, and only such business as is stated in such notice shall be acted upon
thereat.
 
  Stockholder Action Without A Meeting. Under the Horton Certificate, as
permitted by the DGCL, no action may be taken by the stockholders except at a
meeting. The Continental Bylaws permit actions to be taken by written consent
of the stockholders without a meeting.
 
  Quorum. Under the Horton Bylaws, a quorum for the transaction of business at
any stockholder meeting consists of the holders of a majority of the voting
power of all of the shares entitled to vote, represented in person or by
proxy. Under the Continental Bylaws, a quorum for the transaction of business
at any stockholder meeting consists of the holders of a majority of the voting
power of all of the shares entitled to vote, represented in person or by
proxy, at such meeting.
 
  Voting by Stockholders. Under the Horton Bylaws, except as required by law
or the Horton Certificate, action by Horton stockholders is taken by the vote
of the holders of a majority of the voting power of the stock represented and
entitled to vote at a meeting of stockholders at which a quorum is present.
However, the Horton Certificate requires the affirmative vote of two-thirds of
the voting power represented by the outstanding stock entitled to vote to
amend the Horton Certificate to (i) allow stockholder action by written
consent, (ii) change the ability of the Horton Board to amend the Horton
Bylaws, (iii) change the stockholder vote required to change the size of the
Horton Board or (iv) change the provisions regarding special meetings of
stockholders.
 
  Under the Continental Bylaws, except as required by law or by written
consent as provided in the Continental Bylaws, action by Continental
stockholders is taken by a majority of the votes cast at a meeting of
stockholders, except for the election of directors which requires a plurality.
Each holder of Continental Common Stock is entitled to one vote in person or
by proxy for each share of Common Stock outstanding in his or her name on the
records of Continental.
 
  Interested Director Transactions. Under the DGCL, certain contracts or
transactions in which one or more of a corporation's directors has an interest
are not void or voidable solely by reason of such interest provided that one
of the following conditions is met: (i) such contract or transaction is
approved by the stockholders or by a majority of disinterested members of the
board of directors or, in certain circumstances, a committee thereof if the
material facts are disclosed or known thereto, or (ii) the contract or
transaction was fair to the corporation at the time it was approved.
 
  Indemnification and Limitation of Liability. The Horton Certificate provides
that each person who serves as a director or officer of Horton or any entity
owned or controlled by Horton shall be indemnified by Horton to the fullest
extent permitted by DGCL, provided, however, that Horton will not indemnify
any person with respect to service as a director, officer, employee or agent
of Provident Bancorp of Texas, Inc. Horton may enter into agreements with any
person providing for indemnification greater or different than that provided
in the Horton Certificate. In addition, the Horton Certificate provides that
to the full extent permitted by the DGCL, no Horton Director will be
personally liable to Horton or its stockholders for or with respect to any
acts or omissions in the performance of his or her duties as a Horton
director.
 
  The Continental Certificate provides that Continental will indemnify to the
fullest extent permitted by Sections 102(b)(7) and 145 of the DGCL, as amended
from time to time, each person that such Sections grant Continental the power
to indemnify. In addition, the Continental Certificate provides that, to the
extent provided
 
                                      76
<PAGE>
 
in the DGCL, no director of Continental will be liable to Continental or to
its stockholders for monetary damages for breach of fiduciary duty as a
director, except with respect to (i) a breach of the director's duty of
loyalty to Continental or its stockholders, (ii) acts or omissions not in good
faith or which involve intentional misconduct or knowing violation of law,
(iii) liability under Section 174 of the DGCL, or (iv) a transaction from
which the director derived an improper personal benefit. By reference to
Delaware law, each Certificate also specifies certain procedures, presumptions
and remedies that apply with respect to the right to indemnification and the
advancement of expenses provided for therein.
 
  Amendment of Bylaws. Under the Horton Certificate, the Horton Bylaws may be
altered, amended or repealed, or new Bylaws may be adopted, by either the
stockholders or by the Board of Directors; however, the Horton Bylaws provide
that the stockholders may not amend the provisions of the Horton Bylaws
regarding annual meetings, the number and term of office of directors, or the
election and nomination of directors, except upon the affirmative vote of not
less than 66 2/3% of the total voting power of all outstanding shares of
voting stock of Horton. The Continental Bylaws provide that the Continental
Bylaws may be altered, amended or repealed, or new Bylaws may be adopted by a
majority vote of the Continental stockholders or by the majority of the entire
Continental Board, but any Bylaw adopted by the Continental Board may be
amended or repealed by the stockholders.
 
                                 LEGAL MATTERS
 
  The validity of the Horton Common Stock to be issued in the Merger has been
passed upon by Gibson, Dunn & Crutcher LLP.
 
  An opinion with respect to the tax consequences of the Merger has been and
will be given by Gibson, Dunn & Crutcher LLP. An opinion with respect to the
tax consequences of the Merger has been and will be given by Cahill Gordon &
Reindel (a partnership including a professional corporation).
 
                                    EXPERTS
 
  The consolidated financial statements of D.R. Horton, Inc. and its
subsidiaries appearing in Horton's Annual Report on Form 10-K for the fiscal
year ended September 30, 1997, have been audited by Ernst & Young LLP,
independent auditors, as set forth in their report thereon included therein
and incorporated herein by reference. Such consolidated financial statements
are incorporated herein by reference in reliance upon such report given upon
the authority of such firm as experts in accounting and auditing.
   
  The combined financial statements of S.G. Torrey Atlanta, Ltd. and
Affiliates appearing in Horton's Current Report on Form 8-K dated February 27,
1997, have been audited by Whittington, McLemore, Land, Davis & White, P.C.,
independent auditors, as set forth in their report thereon included therein
and incorporated herein by reference. Such combined financial statements are
incorporated herein by reference in reliance upon such report given upon the
authority of such firm as experts in accounting and auditing.     
 
  The consolidated financial statements of Continental Homes Holding Corp. and
its subsidiaries appearing in Continental's Annual Report on Form 10-K for the
fiscal year ended May 31, 1997, have been audited by Arthur Andersen LLP,
independent public accountants, as set forth in their report thereon included
therein and incorporated herein by reference. Such consolidated financial
statements are incorporated herein by reference in reliance upon such report
given upon the authority of said firm as experts in accounting and auditing.
 
  It is expected that representatives of Ernst & Young LLP, Horton's
independent accountants, will be present at the Horton Stockholders Meeting
and representatives of Arthur Andersen LLP, Continental's independent
accountants, will be present at the Continental's Stockholders Meeting, where
they will have an opportunity to respond to appropriate questions of
stockholders and to make a statement if they so desire.
 
                                      77
<PAGE>
 
                             STOCKHOLDER PROPOSALS
 
  If the Merger is consummated, the first annual meeting of the stockholders
of Horton after such consummation is expected to be held on or about January
21, 1999. If the Merger is not consummated, the 1999 annual meeting of the
stockholders of Horton is expected to be held on or about January 21, 1999 and
the 1998 annual meeting of the stockholders of Continental is expected to be
held on or about August 28, 1998.
   
  Subject to the foregoing, if any Horton stockholder intends to present a
proposal at the 1999 annual meeting of the stockholders of Horton and wishes
to have such proposal considered for inclusion in the proxy materials for such
meeting, such holder must submit the proposal to the Secretary of Horton in
writing so as to be received at the principal executive offices of Horton by
August 13, 1998. Such proposals must also meet the other requirements of the
rules of the Commission relating to stockholders' proposals. In addition, the
Bylaws of Horton provide that only stockholder proposals submitted in a timely
manner to the Secretary of Horton may be acted upon at an annual meeting of
stockholders. To be timely, a stockholder's notice must be delivered to, or
mailed and received at, the principal executive offices of Horton not less
than 30 calendar days prior to the date of the originally scheduled meeting;
provided, however, that, if less than 40 calendar days' notice or prior public
disclosure of the date of the scheduled meeting is given or made by Horton,
notice by the stockholder to be timely must be so received not later than the
close of business on the tenth calendar day following the earlier of the day
on which such notice of the date of the scheduled meeting was mailed or the
day on which such public disclosure was made. If the Merger is not
consummated, the only stockholder proposals eligible to be considered for
inclusion in the proxy materials for the 1999 and 1998 annual meetings of
Horton and Continental, respectively, will be those which have been duly
submitted to the Secretary of Horton by August 13, 1998 or the Secretary of
Continental by March 26, 1998, as the case may be, as provided in the
respective Annual Meeting Proxy Statements of Horton and Continental.     
 
                                      78
<PAGE>
 
                        INDEX OF SELECTED DEFINED TERMS
<TABLE>   
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C> 
Antitrust Division........................................................... 9
Assumed Exchange Ratio........................................................1
Calculation Period........................................................... 1
Certificates................................................................ 55
Closing Date................................................................ 54
Code........................................................................ 51
Commission................................................................... 1
Comparable Homebuilding Transactions........................................ 37
Comparables................................................................. 45
Continental.................................................................. 1
Continental Affiliates...................................................... 52
Continental Board............................................................ 7
Continental Bylaws........................................................... 7
Continental Common Stock..................................................... 1
Continental Conditions...................................................... 61
Continental Convertible Notes................................................ 1
Continental Proposal......................................................... 1
Continental Record Date...................................................... 7
Continental Reports.......................................................... 3
Continental Senior Notes.................................................... 10
Continental Stockholders Meeting............................................. 1
DGCL......................................................................... 6
DLJ.......................................................................... 7
DLJ Opinion................................................................. 35
Dobson...................................................................... 64
Dobson Acquisition.......................................................... 64
EBIT........................................................................ 37
EBITDA...................................................................... 35
Effective Time.............................................................. 10
EPS......................................................................... 37
Exchange Act................................................................. 3
Exchange Agent.............................................................. 10
Exchange Ratio............................................................... 1
FTC.......................................................................... 9
gross-up payment............................................................ 46
High Exchange Ratio......................................................... 35
Homebuilding Companies...................................................... 35
Horton....................................................................... 1
Horton Board................................................................. 7
Horton Bylaws................................................................ 6
Horton Common Stock.......................................................... 1
Horton Conditions........................................................... 61
Horton Preferred Stock...................................................... 74
Horton Proposal.............................................................. 1
Horton Record Date........................................................... 6
Horton Reports............................................................... 3
Horton Stockholders Meeting.................................................. 1
HSR Act...................................................................... 9
IBES........................................................................ 45
Indemnified Parties......................................................... 59
Independent Directors........................................................ 8
Larger Cap Companies........................................................ 41
LBO......................................................................... 43
LTM......................................................................... 37
Median Exchange Ratio....................................................... 37
Merger....................................................................... 1
Merger Agreement............................................................. 1
Morgan Stanley............................................................... 8
Mutual Conditions........................................................... 60
Notification and Report Form................................................ 51
NYSE......................................................................... 3
Precedent Transactions...................................................... 44
Registration Statement....................................................... 1
Salomon Smith Barney......................................................... 8
Securities Act............................................................... 1
Selected Companies.......................................................... 41
Selected Transactions....................................................... 42
Smaller Cap Companies....................................................... 41
Special Meetings............................................................. 1
Stock Value.................................................................. 1
Superior Proposal........................................................... 56
Terminating Breach.......................................................... 63
Termination Fee............................................................. 14
Third Party................................................................. 58
Third Party Acquisition..................................................... 58
TIN......................................................................... 51
</TABLE>    
 
                                       79
<PAGE>
 
                                                                      APPENDIX A
 
                          AGREEMENT AND PLAN OF MERGER
 
                                    BETWEEN
 
                               D. R. HORTON, INC.
 
                                      AND
 
                        CONTINENTAL HOMES HOLDING CORP.
 
                         DATED AS OF DECEMBER 18, 1997
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
 <C>         <S>                                                           <C>
 ARTICLE 1.  THE MERGER..................................................  A-1
      1.1.   The Merger..................................................  A-1
             1.1.1. Effective Time......................................   A-1
             1.1.2. Closing.............................................   A-1
      1.2.   Effective Time..............................................  A-1
      1.3.   Effect of the Merger........................................  A-1
      1.4.   Certificate of Incorporation, By-Laws.......................  A-2
             1.4.1. Certificate of Incorporation........................   A-2
             1.4.2. By-Laws.............................................   A-2
      1.5.   Directors and Officers......................................  A-2
 ARTICLE 2.  EFFECT OF THE MERGER ON THE CAPITAL STOCK OF THE CONSTITUENT
             CORPORATIONS; EXCHANGE OF CERTIFICATES......................  A-2
      2.1.   Effect on Capital Stock.....................................  A-2
             2.1.1. No Conversion of DRHI Common Stock..................   A-2
                        Cancellation of Certain Shares of Company Common
             2.1.2. Stock...............................................   A-2
             2.1.3. Conversion of the Company Shares....................   A-2
             2.1.4. Stock Options.......................................   A-3
             2.1.5. Adjustment of Exchange Ratio........................   A-3
             2.1.6. Convertible Notes...................................   A-3
             2.1.7. No Appraisal Rights.................................   A-3
      2.2.   Exchange of Certificates....................................  A-3
             2.2.1. Exchange Agent......................................   A-3
             2.2.2. Exchange Procedures.................................   A-3
             2.2.3. Distribution with Respect to Unexchanged Shares.....   A-4
             2.2.4. No Further Ownership Rights in Company Shares.......   A-4
             2.2.5. No Fractional Shares................................   A-4
             2.2.6. Termination of Exchange Fund........................   A-5
             2.2.7. No Liability........................................   A-5
             2.2.8. Investment of Exchange Fund.........................   A-5
             2.2.9. Transfer Taxes......................................   A-5
 ARTICLE 3.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY...............  A-5
      3.1.   Organization, Existence and Good Standing of the Company....  A-5
                     Organization, Existence and Good Standing of Company
      3.2.   Subsidiaries................................................  A-6
      3.3.   Capitalization..............................................  A-6
             3.3.1. Capitalization of Company and Company Subsidiaries..   A-6
                        Obligations to Issue Capital Stock of Company or
             3.3.2. Company Subsidiaries................................   A-6
      3.4.   Authority Relative to this Agreement; Recommendation........  A-7
      3.5.   Company Material Contracts..................................  A-7
      3.6.   No Conflict.................................................  A-7
      3.7.   Required Filings and Consents...............................  A-7
      3.8.   Compliance..................................................  A-7
      3.9.   Permits.....................................................  A-8
      3.10.  SEC Filings.................................................  A-8
      3.11.  Financial Statements........................................  A-8
      3.12.  Absence of Certain Changes or Events........................  A-8
      3.13.  No Undisclosed Liabilities..................................  A-8
      3.14.  Absence of Litigation.......................................  A-9
</TABLE>
 
                                       i
<PAGE>
 
<TABLE>
<CAPTION>
                                                                          PAGE
                                                                          ----
 <C>         <S>                                                          <C>
      3.15.  Employee Benefit Plans......................................  A-9
             3.15.1. Company Employee Plans.............................   A-9
             3.15.2. Absence of Certain Events..........................   A-9
      3.16.  Labor Matters............................................... A-10
      3.17.  Restrictions on Business Activities......................... A-10
      3.18.  Real Property............................................... A-10
      3.19.  Taxes....................................................... A-11
      3.20.  Intellectual Property....................................... A-12
      3.21.  Environmental Matters....................................... A-12
      3.22.  Interested Party Transactions............................... A-13
      3.23.  Insurance................................................... A-13
      3.24.  Opinions of Financial Advisors.............................. A-13
      3.25.  Brokers..................................................... A-13
              Section 203 of the Delaware Law; Arizona Corporate Takeover
      3.26.  Statute..................................................... A-13
      3.27.  Tax Treatment; Pooling Matters.............................. A-14
      3.28.  Affiliates.................................................. A-14
      3.29.  Pooling..................................................... A-14
 ARTICLE 4.  REPRESENTATIONS AND WARRANTIES OF DRHI...................... A-14
      4.1.   Organization, Existence and Good Standing of DRHI........... A-14
                    Organization, Existence and Good Standing of the DRHI
      4.2.   Subsidiaries................................................ A-14
      4.3.   Capitalization.............................................. A-15
             4.3.1.  Capitalization of DRHI and the DRHI Subsidiary.....  A-15
                       Obligations to Issue Capital Stock of DRHI or the
             4.3.2.  DRHI Subsidiaries..................................  A-15
      4.4.   Authority Relative to this Agreement........................ A-15
      4.5.   DRHI Material Contracts..................................... A-15
      4.6.   No Conflict................................................. A-16
      4.7.   Required Filings and Consents............................... A-16
      4.8.   Compliance.................................................. A-16
      4.9.   Permits..................................................... A-16
      4.10.  SEC Filings................................................. A-16
      4.11.  Financial Statements........................................ A-17
      4.12.  Absence of Certain Changes or Events........................ A-17
      4.13.  No Undisclosed Liabilities.................................. A-17
      4.14.  Absence of Litigation....................................... A-17
      4.15.  Employee Benefit Plans...................................... A-17
             4.15.1. DRHI Employee Plans................................  A-17
             4.15.2. Absence of Certain Events..........................  A-18
      4.16.  Labor Matters............................................... A-18
      4.17.  Restrictions on Business Activities......................... A-18
      4.18.  Real Property............................................... A-18
      4.19.  Taxes....................................................... A-19
      4.20.  Intellectual Property....................................... A-20
      4.21.  Environmental Matters....................................... A-21
      4.22.  Insurance................................................... A-21
      4.23.  Brokers..................................................... A-21
      4.24.  DRHI Common Stock........................................... A-21
      4.25.  Tax Treatment; Pooling Matters.............................. A-21
      4.26.  Investment Intent........................................... A-21
      4.27.  Sufficient Funds............................................ A-22
      4.28.  Pooling..................................................... A-22
</TABLE>
 
                                       ii
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
 <C>         <S>                                                            <C>
 ARTICLE 5.  CONDUCT OF BUSINESS PENDING THE MERGER........................ A-22
      5.1.   Conduct of Business by the Company Pending the Merger......... A-22
      5.2.   No Solicitation............................................... A-23
      5.3.   Conduct of Business by DRHI Pending the Merger................ A-24
 ARTICLE 6.  ADDITIONAL AGREEMENTS......................................... A-25
      6.1.   HSR Act....................................................... A-25
      6.2.   Access to Information; Confidentiality........................ A-25
      6.3.   Registration Statement........................................ A-26
      6.4.   Meetings of Stockholders...................................... A-27
      6.5.   Pooling and Tax-Free Reorganization Treatment................. A-28
      6.6.   Affiliate and Pooling Agreements.............................. A-28
      6.7.   Company Stock Options......................................... A-28
      6.8.   Board Representation.......................................... A-28
      6.9.   Publication of Combined Results............................... A-29
      6.10.  Indemnification and Insurance................................. A-29
      6.11.  Notification of Certain Matters............................... A-29
      6.12.  Further Action................................................ A-29
      6.13.  Public Announcements.......................................... A-30
      6.14.  Employee Benefits............................................. A-30
 ARTICLE 7.  TERMINATION, AMENDMENT AND WAIVER............................. A-30
      7.1.   Termination................................................... A-30
      7.2.   Effect of Termination......................................... A-31
 ARTICLE 8.  CONDITIONS TO CLOSING......................................... A-31
      8.1.   Mutual Conditions............................................. A-31
             8.1.1. No Injunctions or Restraints; Illegality..............  A-31
             8.1.2. Governmental Actions..................................  A-32
             8.1.3. HSR Act...............................................  A-32
             8.1.4. Company Stockholder Approval..........................  A-32
             8.1.5. DRHI Stockholder Approval.............................  A-32
             8.1.6. Listing...............................................  A-32
             8.1.7. Registration Statement................................  A-32
             8.1.8. Consents..............................................  A-32
      8.2.   Conditions to Obligations of DRHI............................. A-32
      8.3.   Conditions to Obligations of the Company...................... A-33
 ARTICLE 9.  GENERAL PROVISIONS............................................ A-33
      9.1.   Expenses...................................................... A-33
                Effectiveness of Representations, Warranties, Covenants and
      9.2.   Agreements.................................................... A-34
      9.3.   Notices....................................................... A-34
      9.4.   Certain Definitions........................................... A-35
      9.5.   Amendment..................................................... A-36
      9.6.   Waiver........................................................ A-36
      9.7.   Headings...................................................... A-36
      9.8.   Severability.................................................. A-36
      9.9.   Entire Agreement.............................................. A-36
      9.10.  Assignment.................................................... A-36
      9.11.  Parties in Interest........................................... A-36
      9.12.  Failure or Indulgence Not Waiver; Remedies Cumulative......... A-36
      9.13.  Governing Law................................................. A-36
      9.14.  Counterparts.................................................. A-37
 Exhibit 6.6 Forms of Agreement regarding disposition of shares
</TABLE>
 
                                      iii
<PAGE>
 
                                 DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                         PAGE
                                                                       ---------
<S>                                                                    <C>
1997 Company Balance Sheet............................................       A-8
1997 DRHI Balance Sheet...............................................      A-17
affiliate.............................................................      A-35
Agreement.............................................................       A-1
Antitrust Division....................................................      A-25
beneficial owner......................................................      A-35
Blue Sky Laws.........................................................       A-7
business day..........................................................      A-35
Certificate of Merger.................................................       A-1
Certificates..........................................................       A-4
Closing Date..........................................................       A-1
Code..................................................................       A-1
Company...............................................................       A-1
Company Affiliates....................................................      A-14
Company Board.........................................................       A-1
Company Common Stock..................................................       A-1
Company Disclosure Schedule...........................................       A-5
Company Employee Plans................................................      A-10
Company ERISA Affiliate...............................................      A-10
Company Permits.......................................................       A-8
Company SEC Reports...................................................       A-8
Company Shares........................................................       A-1
Company Stock Plan....................................................       A-3
Company Stockholder Meeting...........................................      A-27
Company Subsidiary....................................................       A-9
Confidentiality Letters...............................................      A-26
control...............................................................      A-35
Convertible Notes.....................................................       A-3
Delaware Law..........................................................       A-1
DLJ...................................................................      A-21
DRHI..................................................................       A-1
DRHI Common Stock.....................................................       A-2
DRHI Disclosure Schedule..............................................      A-14
DRHI Employee Plans...................................................      A-17
DRHI ERISA Affiliate..................................................      A-17
DRHI Material Contracts...............................................      A-15
DRHI Permits..........................................................      A-16
DRHI Preferred Stock..................................................      A-15
DRHI SEC Reports......................................................      A-16
DRHI Shares...........................................................       A-3
DRHI Stockholder Meeting..............................................      A-27
DRHI Subsidiary.......................................................      A-14
Effective Time........................................................       A-1
Environmental Law.....................................................      A-13
ERISA................................................................. A-9, A-17
Exchange Act..........................................................       A-7
Exchange Agent........................................................       A-3
</TABLE>
 
                                       iv
<PAGE>
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Exchange Fund..............................................................  A-3
Exchange Ratio.............................................................  A-2
FTC........................................................................ A-25
Governmental Entity........................................................  A-7
Hazardous Substance........................................................ A-13
HSR Act....................................................................  A-7
Indemnified Parties........................................................ A-29
IRS........................................................................  A-9
material adverse effect.................................................... A-35
Material Contracts.........................................................  A-7
Merger.....................................................................  A-1
Morgan Stanley............................................................. A-13
Mr. Anderson............................................................... A-28
Notice of Superior Proposal................................................ A-24
NYSE....................................................................... A-21
PBGC.......................................................................  A-9
person..................................................................... A-35
Proxy Statement............................................................ A-26
Registration Statement..................................................... A-26
Salomon Smith Barney....................................................... A-13
SEC........................................................................  A-7
Securities Act.............................................................  A-7
Stock Option...............................................................  A-3
Stock Value................................................................  A-3
subsidiary................................................................. A-35
Superior Proposal.......................................................... A-24
Surviving Corporation......................................................  A-1
Tax........................................................................ A-11
Tax Returns................................................................ A-11
Taxes...................................................................... A-11
Terminating Breach......................................................... A-31
Third Party................................................................ A-24
Third Party Acquisition.................................................... A-24
trading day................................................................ A-36
Transfer Taxes.............................................................  A-5
</TABLE>
 
                                       v
<PAGE>
 
                         AGREEMENT AND PLAN OF MERGER
 
  AGREEMENT AND PLAN OF MERGER, dated as of December 18, 1997 (the
"Agreement"), between D. R. HORTON, INC., a Delaware corporation ("DRHI"), and
CONTINENTAL HOMES HOLDING CORP., a Delaware corporation (the "Company").
 
  WHEREAS, the Board of Directors of DRHI and the Board of Directors of the
Company (the "Company Board") have approved the merger of the Company with and
into DRHI (the "Merger") in accordance with the Delaware General Corporation
Law (the "Delaware Law"), upon the terms and conditions set forth in this
Agreement, whereby each share of common stock, par value $.01 per share, of
the Company (the "Company Common Stock"), not owned directly or indirectly by
the Company, will be converted into the right to receive the merger
consideration provided for herein (the Company Common Stock may be sometimes
hereinafter referred to as the "Company Shares");
 
  WHEREAS, each of DRHI and the Company desire to make certain
representations, warranties, covenants and agreements in connection with the
Merger and also to prescribe various conditions to the Merger; and
 
  WHEREAS, for federal income Tax purposes, it is intended that the Merger
shall qualify as a reorganization under the provisions of Section 368 of the
Internal Revenue Code of 1986, as amended (the "Code");
 
  NOW, THEREFORE, in consideration of the premises, and the mutual covenants
and agreements contained herein, the parties hereto do hereby agree as
follows:
 
                                  ARTICLE 1.
 
                                  The Merger
 
  1.1 The Merger.
 
    1.1.1 Effective Time. At the Effective Time (as defined below), and
  subject to and upon the terms and conditions of this Agreement and the
  Delaware Law, the Company shall be merged with and into DRHI, the separate
  corporate existence of the Company shall cease, and DRHI shall continue as
  the surviving corporation. DRHI as the surviving corporation after the
  Merger is hereinafter sometimes referred to as the "Surviving Corporation."
  The name of the Surviving Corporation shall be D. R. Horton, Inc.
 
    1.1.2. Closing. Unless this Agreement shall have been terminated and the
  transactions herein contemplated shall have been abandoned pursuant to
  Section 7.7. and subject to the satisfaction or waiver of the conditions
  set forth in Article 8., the consummation of the Merger will take place as
  promptly as practicable (and in any event within two business days) after
  satisfaction or waiver of the conditions set forth in Article 8., at the
  offices of Gibson, Dunn & Crutcher LLP, Dallas, Texas, unless another date,
  time or place is agreed to in writing by the parties hereto (the date of
  the consummation of the Merger being the "Closing Date").
 
  1.2. Effective Time. As promptly as practicable (and in any event within two
business days) after the satisfaction or waiver of the conditions set forth in
Article 8., the parties hereto shall cause the Merger to be consummated by
filing a certificate of merger as contemplated by the Delaware Law (the
"Certificate of Merger"), together with any required related certificates,
with the Secretary of State of the State of Delaware, in such form as required
by, and executed in accordance with the relevant provisions of, the Delaware
Law (the time of such filing being the "Effective Time").
 
  1.3. Effect of the Merger. At the Effective Time, the effect of the Merger
shall be as provided in this Agreement, the Certificate of Merger and the
applicable provisions of the Delaware Law. Without limiting the generality of
the foregoing, and subject thereto, at the Effective Time all the property,
rights, privileges, powers
 
                                      A-1
<PAGE>
 
and franchises of the Company and DRHI shall vest in the Surviving
Corporation, and all debts, liabilities and duties of the Company and DRHI
shall become the debts, liabilities and duties of the Surviving Corporation.
 
  1.4. Certificate of Incorporation, By-Laws.
 
    1.4.1. Certificate of Incorporation. At the Effective Time the
  Certificate of Incorporation of DRHI, as in effect immediately prior to the
  Effective Time, shall be the Certificate of Incorporation of the Surviving
  Corporation until thereafter amended as provided by the Delaware Law and
  such Certificate of Incorporation.
 
    1.4.2. By-Laws. The Bylaws of DRHI, as in effect immediately prior to the
  Effective Time, shall be the Bylaws of the Surviving Corporation until
  thereafter amended as provided by the Delaware Law, the Certificate of
  Incorporation of the Surviving Corporation and such Bylaws.
 
  1.5. Directors and Officers. The directors of DRHI immediately prior to the
Effective Time shall be the initial directors of the Surviving Corporation,
each to hold office in accordance with the Certificate of Incorporation and
Bylaws of the Surviving Corporation, subject to Section 6.8., and the officers
of DRHI shall be the initial officers of the Surviving Corporation, in each
case until their respective successors are duly elected or appointed and
qualified.
 
                                  ARTICLE 2.
 
               Effect of the Merger on the Capital Stock of the
              Constituent Corporations; Exchange of Certificates
 
  2.1. Effect on Capital Stock. As of the Effective Time, by virtue of the
Merger and without any action on the part of DRHI, the Company or any holder
of any of the following securities:
 
    2.1.1. No Conversion of DRHI Common Stock. Each share of common stock,
  par value $.01 per share, of DRHI ("DRHI Common Stock") issued and
  outstanding immediately prior to the Effective Time shall continue to be
  issued and outstanding DRHI Common Stock. Any DRHI Common Stock held in
  DRHI's treasury immediately prior to the Effective Time shall continue to
  be held in treasury of the Surviving Corporation at the Effective Time.
 
    2.1.2. Cancellation of Certain Shares of Company Common Stock. Each
  Company Share held in the treasury of the Company and each Company Share
  owned by DRHI or any direct or indirect wholly owned subsidiary of the
  Company or DRHI immediately prior to the Effective Time shall cease to be
  outstanding, be canceled and retired without payment of any consideration
  therefor and cease to exist.
 
    2.1.3. Conversion of the Company Shares. At the Effective Time, each
  Company Share (other than the Company Shares to be canceled in accordance
  with Section 2.1.2.), issued and outstanding immediately prior to the
  Effective Time shall be converted into the right to receive the number of
  shares of DRHI Common Stock determined in accordance with this Section
  2.1.3. (the "Exchange Ratio").
 
      (a) If the Stock Value is greater than or equal to $16.878 and less
    than or equal to $18.776, the Exchange Ratio shall be 2.37.
 
      (b) If the Stock Value is less than $16.878 and greater than $14.50,
    the Exchange Ratio shall equal the quotient obtained by dividing $40.00
    by the Stock Value (rounded to the nearest one thousandth).
 
      (c) If the Stock Value is more than $18.776 and less than $19.78, the
    Exchange Ratio shall equal the quotient obtained by dividing $44.50 by
    the Stock Value (rounded to the nearest one thousandth).
 
      (d) If the Stock Value is less than or equal to $14.50, the Exchange
    Ratio shall be 2.759; provided that the Exchange Ratio shall equal the
    quotient obtained by dividing $35.00 by the Stock Value (rounded to the
    nearest one thousandth) if the Stock Value is less than $12.69 and DRHI
    so elects as provided in Section 7.1.(f).
 
                                      A-2
<PAGE>
 
      (e) If the Stock Value is more than or equal to $19.78, the Exchange
    Ratio shall be 2.25.
 
      (f) The term "Stock Value" means the average of the closing prices of
    DRHI Common Stock as reported for New York Stock Exchange Composite
    Transactions for 15 randomly selected trading days within the 30
    consecutive trading days ending on the date that is five trading days
    prior to the Closing Date. The random selection of trading days shall
    be supervised jointly by the financial advisors retained by the parties
    in connection with the transactions contemplated hereby.
 
  All such shares of DRHI Common Stock shall be fully paid and nonassessable
and are hereinafter sometimes referred to as the "DRHI Shares." Upon such
conversion, all such Company Shares shall be canceled and cease to exist, and
each holder thereof shall cease to have any rights with respect thereto other
than the right to receive DRHI Shares issued in exchange therefor and cash in
lieu of fractional DRHI Shares in accordance with the terms provided herein.
 
    2.1.4. Stock Options. At the Effective Time, each outstanding option to
  purchase Company Common Stock (a "Stock Option") granted under the
  Company's 1988 Stock Incentive Plan or 1986 Stock Incentive Plan
  (collectively, the "Company Stock Plans"), whether or not then vested or
  exercisable, shall be assumed by the Surviving Corporation, in accordance
  with the terms of the Company Stock Plan pursuant to which it was granted
  and any stock option agreement by which it is evidenced. It is intended
  that the foregoing provisions shall be undertaken in a manner that will not
  constitute a "modification" as defined in Section 424 of the Code, as to
  any stock option which is an "incentive stock option." Each Stock Option so
  assumed shall be exercisable for that number of shares of DRHI Common Stock
  equal to the number of the Company Shares subject thereto multiplied by the
  Exchange Ratio, and shall have an exercise price per share equal to the
  exercise price per Company Share divided by the Exchange Ratio.
 
    2.1.5. Adjustment of Exchange Ratio. If after the date hereof and prior
  to the Effective Time there shall have been a change in the DRHI Common
  Stock, by reason of a stock split (including a reverse split) of the DRHI
  Common Stock or a dividend payable in the DRHI Common Stock, or any other
  distribution of securities to holders of the DRHI Common Stock with respect
  to their DRHI Common Stock (including without limitation such a
  distribution made in connection with a recapitalization, reclassification,
  merger, consolidation, reorganization or similar transaction) or otherwise,
  then the Exchange Ratio and the dollar amounts set forth in clauses (a)
  through (f) of Section 2.1.3., shall be appropriately adjusted.
 
    2.1.6. Convertible Notes. At the Effective Time, each of the Company's 6
  7/8% Convertible Subordinated Notes due March 2002 (the "Convertible
  Notes") shall be convertible for that number of shares of DRHI Common Stock
  equal to the number of the Company Shares into which the Convertible Notes
  are then convertible multiplied by the Exchange Ratio.
 
    2.1.7. No Appraisal Rights. The holders of the Company Shares and the
  holders of shares of DRHI Common Stock shall not be entitled to appraisal
  rights in respect of the Merger.
 
  2.2. Exchange of Certificates.
 
    2.2.1. Exchange Agent. Prior to the Effective Time, DRHI shall enter into
  an agreement with a bank or trust company designated by DRHI (the "Exchange
  Agent"), providing that DRHI shall deposit with the Exchange Agent as of
  the Effective Time, for the benefit of the holders of the Company Shares,
  for exchange in accordance with this Section 2.2. through the Exchange
  Agent, (i) certificates representing the shares of DRHI Common Stock
  issuable pursuant to Section 2.1. and (ii) cash in an amount equal to the
  aggregate amount required to be paid in lieu of fractional interests of
  DRHI Common Stock pursuant to Section 2.2.5. (such shares of DRHI Common
  Stock, together with any dividends or distributions with respect thereto
  with a record date after the Effective Time and the cash referred to in
  clause (ii) of this Section 2.2.1. being hereinafter referred to as the
  "Exchange Fund") in exchange for outstanding Company Shares.
 
    2.2.2. Exchange Procedures. As soon as practicable after the Effective
  Time, the Exchange Agent shall mail to each holder of record of a
  certificate or certificates which immediately prior to the Effective
 
                                      A-3
<PAGE>
 
  Time represented outstanding Company Shares (the "Certificates") whose
  shares were converted into the right to receive the merger consideration
  provided for in Section 2.1., (i) a letter of transmittal and (ii)
  instructions for use in effecting the surrender of the Certificates in
  exchange for certificates representing shares of DRHI Common Stock. Upon
  surrender of a Certificate for cancellation to the Exchange Agent, together
  with such letter of transmittal, duly executed, and such other documents as
  may reasonably be required by the Exchange Agent, the holder of such
  Certificate shall be entitled to receive in exchange therefor a certificate
  representing that number of whole shares of DRHI Common Stock and cash
  which such holder has the right to receive pursuant to the provisions of
  Sections 2.1 and 2.2. and the Certificate so surrendered shall forthwith be
  canceled. If any cash or any certificate representing DRHI Shares is to be
  paid to or issued in a name other than that in which the Certificate
  surrendered in exchange therefor is registered, a certificate representing
  the proper number of shares of DRHI Common Stock may be issued to a person
  other than the person in whose name the Certificate so surrendered is
  registered, if such Certificate shall be properly endorsed or otherwise be
  in proper form for transfer and the person requesting such payment shall
  pay to the Exchange Agent any transfer or other Taxes required by reason of
  the issuance of shares of DRHI Common Stock to a person other than the
  registered holder of such Certificate or establish to the satisfaction of
  the Exchange Agent that such Tax has been paid or is not applicable. Until
  surrendered as contemplated by this Section 2.2., each Certificate shall be
  deemed at any time after the Effective Time to represent only the right to
  receive upon such surrender the certificate representing shares of DRHI
  Common Stock and cash in lieu of any fractional shares of DRHI Common Stock
  as contemplated by this Section 2.2. No interest will be paid or will
  accrue on any cash payable in lieu of any fractional shares of DRHI Common
  Stock.
 
    2.2.3. Distribution with Respect to Unexchanged Shares. No dividends or
  other distributions with respect to DRHI Common Stock with a record date
  after the Effective Time shall be paid to the holder of any unsurrendered
  Certificate with respect to DRHI Common Stock represented thereby and no
  cash payment in lieu of fractional shares shall be paid to any such holder
  pursuant to Section 2.2.5. until the surrender of such Certificate in
  accordance with this Section 2.2. Subject to the effect of applicable laws,
  following surrender of any such Certificate, there shall be paid to the
  holder of the certificates representing whole shares of DRHI Common Stock
  issued in exchange therefor, without interest, (i) at the time of such
  surrender, the amount of any cash payable in lieu of a fractional share of
  DRHI Common Stock to which such holder is entitled pursuant to Section
  2.2.5. and the amount of dividends or other distributions with a record
  date after the Effective Time theretofore paid with respect to such whole
  shares of the DRHI Common Stock, and (ii) at the appropriate payment date,
  the amount of dividends or other distributions with a record date after the
  Effective Time but prior to such surrender and with a payment date
  subsequent to such surrender payable with respect to such whole shares of
  DRHI Common Stock. If any holder of converted Company Shares shall be
  unable to surrender such holder's Certificates because such Certificates
  shall have been lost or destroyed, such holder may deliver in lieu thereof
  an affidavit and indemnity bond in form and substance and with surety
  reasonably satisfactory to DRHI.
 
    2.2.4. No Further Ownership Rights in Company Shares. All shares of DRHI
  Common Stock issued upon the surrender for exchange of Certificates in
  accordance with the terms of this Article 2. (including any cash paid
  pursuant to Sections 2.2.3. or 2.2.5.) shall be deemed to have been issued
  and paid in full satisfaction of all rights pertaining to the Company
  Shares theretofore represented by such Certificates. If, after the
  Effective Time, Certificates are presented to the Surviving Corporation or
  the Exchange Agent for any reason, they shall be canceled and exchanged as
  provided in this Article 2., except as otherwise provided by law.
 
    2.2.5. No Fractional Shares. No certificates or scrip representing
  fractional shares of DRHI Common Stock shall be issued upon the surrender
  for exchange of Certificates, and such fractional share interests will not
  entitle the owner thereof to vote or to any rights of a stockholder of
  DRHI. Notwithstanding any other provision of this Agreement, each holder of
  Company Shares exchanged pursuant to the Merger who would otherwise have
  been entitled to receive a fraction of a share of DRHI Common Stock (after
  taking into account all Certificates delivered by such holder) shall
  receive, in lieu thereof, cash (without interest) in an amount equal to
  such fractional part of a share of DRHI Common Stock multiplied by the per
  share
 
                                      A-4
<PAGE>
 
  closing price of DRHI Common Stock on the date of the Effective Time (or,
  if shares of DRHI Common Stock do not trade on such date, the first date of
  trading of DRHI Common Stock after the Effective Time). The parties
  acknowledge that payment of the cash consideration in lieu of issuing
  fractional shares was not separately bargained for consideration but merely
  represents a mechanical rounding off for purposes of simplifying the
  corporate and accounting complexities which would otherwise be caused by
  the issuance of fractional shares.
 
    2.2.6. Termination of Exchange Fund. Any portion of the Exchange Fund
  which remains undistributed to the holders of the Certificates for six
  months after the Effective Time shall be delivered to DRHI, upon demand,
  and any holders of the Certificates who have not theretofore complied with
  this Article 2. shall thereafter look only to DRHI for payment of DRHI
  Common Stock, any cash in lieu of fractional shares of DRHI Common Stock
  and any dividends or distributions with respect to DRHI Common Stock.
 
    2.2.7. No Liability. None of DRHI, the Company or the Exchange Agent
  shall be liable to any person in respect of any shares of DRHI Common Stock
  (or dividends or distributions with respect thereto) or cash from the
  Exchange Fund delivered to a public official pursuant to any applicable
  abandoned property, escheat or similar law. If any Certificates shall not
  have been surrendered prior to the end of the applicable period after the
  Effective Time under escheat laws (or immediately prior to such earlier
  date on which any shares of DRHI Common Stock, any cash in lieu of
  fractional shares of DRHI Common Stock or any dividends or distributions
  with respect to DRHI Common Stock in respect of such Certificates would
  otherwise escheat to or become the property of any governmental entity),
  any such shares, cash, dividends or distributions in respect of such
  Certificates shall, to the extent permitted by applicable law, become the
  property of the Surviving Corporation, free and clear of all claims or
  interest of any person previously entitled thereto.
 
    2.2.8. Investment of Exchange Fund. The Exchange Agent shall invest any
  cash included in the Exchange Fund on a daily basis as directed by DRHI.
  Any interest and other income resulting from such investments shall be paid
  to DRHI.
 
    2.2.9. Transfer Taxes. DRHI and the Company shall cooperate in the
  preparation, execution and filing of all returns, applications or other
  documents regarding any real property transfer, stamp, recording,
  documentary or other taxes and any other fees and similar taxes which
  become payable in connection with the Merger other than transfer or stamp
  taxes payable in respect of transfers pursuant to the third sentence of
  Section 2.2.2. (collectively, "Transfer Taxes"). From and after the
  Effective Time, DRHI shall pay or cause to be paid, without deduction or
  withholding from any amounts payable to the holders of Company Shares, all
  Transfer Taxes.
 
                                  ARTICLE 3.
 
                 Representations and Warranties of the Company
 
  The Company hereby represents and warrants to DRHI that, except as set forth
in written disclosure schedule delivered on or prior to the date hereof by the
Company to DRHI that is arranged in paragraphs corresponding to the numbered
and lettered paragraphs contained in this Article 3. (the "Company Disclosure
Schedule"):
 
  3.1. Organization, Existence and Good Standing of the Company. The Company
is a corporation duly organized, validly existing and in good standing under
the laws of the State of Delaware. The Company has all necessary corporate
power and authority to own its properties and assets and to carry on its
business as presently conducted. The Company is qualified to do business and
is in good standing in each jurisdiction where the nature or character of the
property owned, leased or operated by it or the nature of the business
transacted by it makes such qualification necessary, except where the failure
to be so qualified or be in good standing would not have a Company Material
Adverse Effect. The Company has delivered to DRHI a complete and correct copy
of its Certificate of Incorporation and Bylaws as amended to the date hereof.
 
                                      A-5
<PAGE>
 
  3.2. Organization, Existence and Good Standing of Company
Subsidiaries. Section 3.2. of the Company Disclosure Schedule sets forth a
list of all subsidiaries of the Company (a "Company Subsidiary"), the
jurisdiction of incorporation or organization, as applicable, of each Company
Subsidiary, the type of each Company Subsidiary, the percentage of the
Company's and Company Subsidiaries' ownership of the outstanding voting stock
of each such corporate Company Subsidiary, the authorized and outstanding
capital stock of each such corporate Company Subsidiary, and the type and
percentage of the Company's and Company Subsidiaries' ownership interest in
each other Company Subsidiary. Each Company Subsidiary is a corporation,
business trust, general or limited partnership or limited liability company
(as specified in Section 3.2. to the Company Disclosure Schedule) duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation or organization, as applicable. Each Company
Subsidiary has all necessary entity power and authority to own its properties
and assets and to carry on its business as presently conducted. Each Company
Subsidiary is qualified to do business and is in good standing in each
jurisdiction where the nature or character of the property owned, leased or
operated by it or the nature of the business transacted by it makes such
qualification necessary, except where the failure to be so qualified or be in
good standing would not have a Company Material Adverse Effect. Except for the
Company Subsidiaries, the Company does not, directly or indirectly, own any
equity interest in any other corporation, association, partnership, joint
venture, business organization or limited liability company or other entity,
with respect to which interest the Company or any Company Subsidiary has
invested or is required to invest $100,000 or more, excluding securities in
any publicly traded company held for investment and comprising less than five
percent of the outstanding voting securities of such company.
 
  3.3. Capitalization.
 
    3.3.1. Capitalization of Company and Company Subsidiaries. The authorized
  capital stock of the Company consists solely of 20,000,000 shares of
  Company Common Stock and 2,000,000 shares of preferred stock, $.01 par
  value per share. As of the date hereof: (i) 6,863,686 shares of Company
  Common Stock were issued and outstanding and 217,845 shares of Company
  Common Stock were held in treasury, and no shares of preferred stock were
  issued and outstanding; (ii) 834,345 shares of Company Common Stock were
  reserved for future issuance pursuant to outstanding stock options, and
  (iii) 3,630,925 shares of Company Common Stock were reserved for future
  issuance in connection with the Convertible Notes. All of the outstanding
  shares of Company Common Stock, and all shares of Company Common Stock
  which may be issued prior to the Effective Time upon exercise of any option
  or conversion right will be, validly issued, fully paid and nonassessable
  and free of preemptive rights. Except as set forth above, as of the date
  hereof there are outstanding no shares of capital stock or other voting
  securities of the Company and no equity equivalent interests in the
  ownership or earnings of the Company or the Company Subsidiaries. All of
  the outstanding shares of capital stock, or other ownership interest, of
  each Company Subsidiary is validly issued, fully paid and nonassessable,
  and is owned by the Company or another Company Subsidiary free and clear of
  all security interests, liens, claims, pledges, charges or other
  encumbrances of any nature whatsoever.
 
    3.3.2. Obligations to Issue Capital Stock of Company or Company
  Subsidiaries. Section 3.3.2. of the Company Disclosure Schedule sets forth
  a true and complete list of all outstanding rights to purchase Company
  Common Stock, the name of each holder thereof, the number of shares
  purchasable thereunder and the per share exercise or purchase price of each
  right. Except with respect to the Convertible Notes, there are no
  securities of the Company or any Company Subsidiary convertible or
  exchangeable for shares of capital stock or voting securities of the
  Company or any Company Subsidiary, no options, warrants or other similar
  rights, agreements, arrangements or commitments of any character obligating
  the Company or any Company Subsidiary to issue or sell any shares of
  capital stock of, or other equity interests in, the Company or any Company
  Subsidiary. There are no obligations, contingent or otherwise, of the
  Company or any Company Subsidiary to repurchase, redeem or otherwise
  acquire any shares of Company Common Stock or the capital stock or other
  equity interest of any Company Subsidiary or to make any investment (in the
  form of a loan, capital contribution or otherwise) in any Company
  Subsidiary.
 
                                      A-6
<PAGE>
 
  3.4. Authority Relative to this Agreement; Recommendation. The Company has
all necessary corporate power and authority to execute and deliver this
Agreement and to perform its obligations hereunder and to consummate the
transactions contemplated hereby. The execution and delivery of this Agreement
by the Company and the consummation by the Company of the transactions
contemplated hereby have been duly and validly authorized by all necessary
corporate action, and no other corporate proceedings on the part of the
Company are necessary to authorize this Agreement or to consummate the
transactions so contemplated (other than the adoption of this Agreement by the
holders of a majority of the outstanding shares of Company Common Stock
entitled to vote in accordance with the Delaware Law and the Company's
Certificate of Incorporation and Bylaws). This Agreement has been duly and
validly executed and delivered by the Company and, assuming the due
authorization, execution and delivery by DRHI constitutes a legal, valid and
binding obligation of the Company enforceable against the Company in
accordance with its terms. The Company Board has unanimously resolved to
recommend that the stockholders of the Company adopt and approve this
Agreement.
 
  3.5. Company Material Contracts. Section 3.5. of the Company Disclosure
Schedule sets forth a list of all agreements to which the Company or any
Company Subsidiary is a party or by which any of them is bound which, as of
the date hereof: (i) are required to be filed as "material contracts" with the
Securities and Exchange Commission (the "SEC") pursuant to the requirements of
the Securities Exchange Act of 1934, as amended (the "Exchange Act"); (ii)
under which the consequences of a default, nonrenewal or termination would
have a Company Material Adverse Effect; or (iii) pursuant to which payments
might be required or acceleration of benefits may be required upon a "change
of control" of the Company, or upon execution of this Agreement by the Company
or the performance by the Company of its obligations hereunder (collectively,
the "Material Contracts").
 
  3.6. No Conflict. The execution and delivery of this Agreement by the
Company does not, and the performance of this Agreement by the Company will
not, (i) conflict with or violate the Certificate of Incorporation or Bylaws
of the Company, (ii) conflict with or violate any law, rule, regulation,
order, judgment or decree applicable to the Company or any Company Subsidiary
or by which its or any of their respective properties is bound or affected, or
(iii) result in any breach of or constitute a default (or an event that with
notice or lapse of time or both would become a default) under, or impair the
rights of the Company or any Company Subsidiary or alter the rights or
obligations of any third party under, or give to others any rights of
termination, amendment, acceleration or cancellation, or result in the
creation of a lien or encumbrance on any of the properties or assets of the
Company or any Company Subsidiary pursuant to any note, bond, mortgage,
indenture, contract, agreement, lease, license, permit, franchise or other
instrument or obligation to which the Company or any Company Subsidiary is a
party or by which the Company or any Company Subsidiary or any of their
respective properties is bound or affected, except in any such case for any
such conflicts, violations, breaches, defaults or other occurrences that would
not have a Company Material Adverse Effect.
 
  3.7. Required Filings and Consents. The execution and delivery of this
Agreement by the Company does not, and the performance of this Agreement by
the Company will not, require any consent, approval, authorization or permit
of, or filing with or notification to, any governmental or regulatory
authority, domestic or foreign, federal, state or local ("Governmental
Entity"), except (i) for applicable requirements, if any, of the Securities
Act of 1933, as amended (the "Securities Act"), the Exchange Act, state
securities laws ("Blue Sky Laws"), the pre-merger notification requirements of
the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR
Act"), and the filing and recordation of appropriate merger or other documents
as required by the Delaware Law, and (ii) where the failure to obtain such
consents, approvals, authorizations or permits, or to make such filings or
notifications, would not prevent or delay consummation of the Merger, or
otherwise prevent or delay the Company from performing its obligations under
this Agreement, or would not otherwise have a Company Material Adverse Effect.
 
  3.8. Compliance. Neither the Company nor any Company Subsidiary is in
conflict with, or in default or violation of, (i) any law, rule, regulation,
order, judgment or decree applicable to the Company or any Company Subsidiary
or by which its or any of their respective properties is bound or affected or
(ii) any note, bond,
 
                                      A-7
<PAGE>
 
mortgage, indenture, contract, agreement, lease, license, permit, franchise or
other instrument or obligation, except for any such conflicts, defaults or
violations which would not individually or in the aggregate have a Company
Material Adverse Effect.
 
  3.9. Permits. The Company and each Company Subsidiary hold all permits,
licenses, easements, variances, exemptions, consents, certificates, orders and
approvals from Governmental Entities necessary for the operation of the
business of the Company and the Company Subsidiaries as it is now being
conducted (collectively, the "Company Permits"), except where the failure to
hold such Company Permits would not have a Company Material Adverse Effect.
The Company and the Company Subsidiaries are in compliance with the terms of
the Company Permits, except where the failure to so comply would not have a
Company Material Adverse Effect.
 
  3.10. SEC Filings. The Company has filed all forms, reports and documents
required to be filed by it with the SEC. The Company has made available to
DRHI (i) its Annual Reports on Form 10-K for the fiscal years ended May 31,
1996 and 1997, (ii) its Quarterly Report on Form 10-Q for the period ended
August 31, 1997, (iii) all proxy statements relating to the Company's meetings
of stockholders (whether annual or special) held since June 1, 1996, (iv) all
other reports or registration statements (other than Reports on Form 10-Q not
referred to in clause (ii) above) filed by the Company with the SEC since June
1, 1996, and (v) all amendments and supplements to all such reports and
registration statements filed by the Company with the SEC since June 1, 1996
(collectively, the "Company SEC Reports"). The Company SEC Reports (i) were
prepared in all material respects in accordance with the requirements of the
Securities Act or the Exchange Act, as the case may be, and (ii) did not at
the time they were filed (or if amended or superseded by a filing prior to the
date of this Agreement, then on the date of such filing) contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they were made, not misleading. None of
the Company Subsidiaries is required to file any forms, reports or other
documents with the SEC.
 
  3.11. Financial Statements. Each of the consolidated financial statements
(including, in each case, any related notes thereto) contained in the Company
SEC Reports was prepared in accordance with generally accepted accounting
principles applied on a consistent basis throughout the periods involved
(except as may be indicated in the notes thereto), and each fairly presents in
all material respects the consolidated financial position of the Company and
its consolidated subsidiaries as at the respective dates thereof and the
consolidated statements of income and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal and recurring year-end adjustments. The Company is in full compliance
with Section 13(b)(2) of the Exchange Act.
 
  3.12. Absence of Certain Changes or Events. Except as set forth in the
Company SEC Reports, since June 1, 1997, there has not occurred: (i) any
Company Material Adverse Effect or any event, change or effect which could
reasonably be expected to have a Company Material Adverse Effect; (ii) any
amendments or changes in the Certificate of Incorporation or Bylaws of the
Company; (iii) any damage to, destruction or loss of any asset of the Company
or any Company Subsidiary (whether or not covered by insurance) that would
have a Company Material Adverse Effect; (iv) any material change by the
Company in its accounting methods, principles or practices; (v) any material
revaluation by the Company of any of its assets, including, without
limitation, writing off notes or accounts receivable other than in the
ordinary course of business; or (vi) any action or event that would have
required the consent of DRHI pursuant to Section 5.1. had such action or event
occurred after the date of this Agreement.
 
  3.13. No Undisclosed Liabilities. Neither the Company nor any Company
Subsidiary has any liabilities (absolute, accrued, contingent or otherwise),
except liabilities (a) in the aggregate adequately provided for in the
Company's balance sheet (including any related notes thereto) as of August 31,
1997 (the "1997 Company Balance Sheet"), (b) incurred in the ordinary course
of business before the date of 1997 Company Balance Sheet and not required
under generally accepted accounting principles to be reflected on the 1997
Company Balance
 
                                      A-8
<PAGE>
 
Sheet, (c) disclosed in the Company SEC Reports, or (d) incurred since August
31, 1997 in the ordinary course of business consistent with past practice or
in connection with this Agreement, that would not, individually or in the
aggregate, have a Company Material Adverse Effect.
 
  3.14. Absence of Litigation. Except as set forth in the Company SEC Reports,
there are no claims, actions, suits, proceedings or investigations pending or,
to the knowledge of the Company, threatened against the Company or any Company
Subsidiary or any properties or rights of the Company or any Company
Subsidiary before any court, arbitrator or administrative, governmental or
regulatory authority or body, domestic or foreign, that could reasonably be
expected to have a Company Material Adverse Effect or that could reasonably be
expected to prevent or delay consummation of the Merger, or otherwise prevent
or delay the Company from performing its obligations under this Agreement.
 
  3.15. Employee Benefit Plans.
 
    3.15.1 Company Employee Plans. Section 3.15. of the Company Disclosure
  Schedule lists all employee pension plans (as defined in Section 3(2) of
  the Employee Retirement Income Security Act of 1974, as amended ("ERISA")),
  all employee welfare plans (as defined in Section 3(1) of ERISA) and all
  other bonus, stock option, stock purchase, incentive, deferred
  compensation, supplemental retirement, severance and other similar fringe
  or employee benefit plans, programs or arrangements, and any employment,
  executive compensation, consulting or severance agreements, written or
  otherwise, for the benefit of, or relating to, any employee of or
  consultant to the Company, any trade or business (whether or not
  incorporated) which is a member of a controlled group including the Company
  or which is under common control with the Company (a "Company ERISA
  Affiliate") within the meaning of Section 414 of the Code, or any Company
  Subsidiary, as well as each plan with respect to which the Company or a
  Company ERISA Affiliate could incur liability under Section 4069 (if such
  plan has been or were terminated) or Section 4212 of ERISA (collectively
  the "Company Employee Plans"). There have been made available to DRHI
  copies of (i) each such written Company Employee Plan (other than those
  referred to in Section 4(b)(4) of ERISA), (ii) the most recent annual
  report on Form 5500 series, with accompanying schedules and attachments,
  filed with respect to each Company Employee Plan required to make such a
  filing, and (iii) the most recent actuarial valuation for each Company
  Employee Plan subject to Title IV of ERISA.
 
    3.15.2. Absence of Certain Events. (i) None of the Company Employee Plans
  provides retiree medical or other retiree welfare benefits to any person
  (other than as required under COBRA), and none of the Company Employee
  Plans is a "multiemployer plan" as such term is defined in Section 3(37) of
  ERISA; (ii) there has been no non-exempt "prohibited transaction," as such
  term is defined in Section 406 of ERISA and Section 4975 of the Code, with
  respect to any Company Employee Plan, which would result in a Company
  Material Adverse Effect; (iii) all Company Employee Plans are in compliance
  with the requirements prescribed by any and all statutes (including ERISA
  and the Code), orders, or governmental rules and regulations currently in
  effect with respect thereto (including all applicable requirements for
  notification to participants or the Department of Labor, the Pension
  Benefit Guaranty Corporation (the "PBGC"), Internal Revenue Service (the
  "IRS") or Secretary of the Treasury) except as would not individually or in
  the aggregate result in a Company Material Adverse Effect, and the Company
  and each Company Subsidiary have performed all obligations required to be
  performed by them under, and are not in default under or violation of any
  of the Company Employee Plans except as would not individually or in the
  aggregate result in a Company Material Adverse Effect; (iv) each Company
  Employee Plan intended to qualify under Section 401(a) of the Code and each
  trust intended to qualify under Section 501(a) of the Code is the subject
  of a favorable determination letter from the IRS; (v) all contributions
  required to be made to any Company Employee Plan pursuant to Section 412 of
  the Code, or the terms of the Company Employee Plan or any collective
  bargaining agreement, have been made on or before their due dates; (vi)
  with respect to each Company Employee Plan subject to Title IV of ERISA, no
  "reportable event" within the meaning of Section 4043 of ERISA (excluding
  any such event for which the 30 day notice requirement has been waived
  under the regulations to Section 4043 of ERISA) nor any event described in
  Section 4062, 4063 or 4041 of ERISA has occurred; and (vii) neither the
  Company nor any Company ERISA Affiliate has
 
                                      A-9
<PAGE>
 
  incurred, nor reasonably expects to incur, any liability under Title IV of
  ERISA (other than liability for premium payments to the PBGC arising in the
  ordinary course).
 
  3.16. Labor Matters. (i) There are no controversies pending or, to the
knowledge of the Company, threatened, between the Company or any Company
Subsidiary and any of their respective employees, which controversies have had
or could reasonably be expected to have a Company Material Adverse Effect;
(ii) neither the Company nor any Company Subsidiary is a party to any material
collective bargaining agreement or other labor union contract applicable to
persons employed by the Company or any Company Subsidiary, nor does the
Company know of any activities or proceedings of any labor union to organize
any such employees; and (iii) the Company has no knowledge of any strikes,
slowdowns, work stoppages, lockouts, or threats thereof, by or with respect to
any employees of the Company or any Company Subsidiary which could reasonably
be expected to have a Company Material Adverse Effect. To the knowledge of the
Company, as of the date hereof, no executive or management employee of the
Company or any of the Company Subsidiaries intends to terminate his employment
in connection with the Merger.
 
  3.17. Restrictions on Business Activities. Except for this Agreement, there
is no agreement, judgment, injunction, order or decree binding upon the
Company or any Company Subsidiary, or any affiliate thereof, which has or
would have the effect of prohibiting the conduct of business by the Company or
any Company Subsidiary as currently conducted, except for any prohibitions as
would not, individually or in the aggregate, have a Company Material Adverse
Effect.
 
  3.18. Real Property. The Company and the Company Subsidiaries have good and
marketable (or indefeasible, in jurisdictions where the term "marketable" is
not customarily used) title in fee simple, or will acquire good and marketable
(or indefeasible, as the case may be) title in fee simple, to the real
property purported to be owned or optioned by them, free and clear of all
liens, charges and encumbrances, except liens for Taxes not yet due and such
liens or other imperfections of title as do not or will not materially
interfere with the present use or intended use by the Company and the Company
Subsidiaries or materially affect the value or marketing of the property
affected thereby and that do not, individually or in the aggregate, have a
Company Material Adverse Effect. Neither the Company nor any Company
Subsidiary has given, nor have they received, any notice that a breach or an
event of default exists, and no condition or event has occurred that with the
giving of notice, the lapse of time, or both would constitute a breach or
event of default, by the Company or any Company Subsidiary, or to the
knowledge of the Company, any other person with respect to any agreements,
arrangements, contracts, covenants, conditions, deeds, deeds of trust, rights-
of-way, easements, mortgages, restrictions, surveys, title insurance policies,
and other documents granting to the Company or any Company Subsidiary title to
or an interest in or otherwise affecting the real property which is material
to the operation of the business of the Company and the Company Subsidiaries,
as presently conducted or intended to be conducted, except for such breach or
event of default that would not, individually or in the aggregate, have a
Company Material Adverse Effect. No condemnation, eminent domain, or similar
proceeding exists, is pending or, to the knowledge of the Company, is
threatened with respect to, or that could affect, any real property owned or
leased by the Company or any Company Subsidiary that would reasonably be
expected to have a Company Material Adverse Effect. There is no judgment,
injunction, order, decree, statute, ordinance, rule, regulation, moratorium,
or other action by a Governmental Entity, or to the knowledge of the Company,
pending before or being considered by a Governmental Entity, which has or
would have the effect of restricting the conduct of business by the Company or
any Company Subsidiary as currently conducted or intended to be conducted by
them, except for any restrictions as would not, individually or in the
aggregate, have a Company Material Adverse Effect. No developer-related
charges or assessments by any public authority or any other person for public
improvements or otherwise made against any property developed by the Company
or any Company Subsidiary are unpaid (other than those reflected on the
Company Balance Sheet or incurred since the date of the Company Balance Sheet
in the ordinary course of the Company's business consistent with past
practices), except for charges or assessments as would not, individually or in
the aggregate, have a Company Material Adverse Effect. The real property of
the Company and the Company Subsidiaries to be used for homebuilding conform,
in all material respects, to the appropriate governmental authority's
standards, and there is no material impediment to approval for
 
                                     A-10
<PAGE>
 
undeveloped real property, such approval to allow development in the manner in
which the Company currently anticipates building thereon, except for such as
is not reasonably likely to result in a Company Material Adverse Effect. The
developed real property of the Company and the Company Subsidiaries has access
to streets, and is serviced, in all material respects, by all utilities and
other services, as is necessary to construct homes on such property, and such
utilities and other services are adequate for the current and intended use of
such property. The undeveloped real property of the Company and the Company
Subsidiaries has access to streets, and such real property is serviced, in all
material respects, by all utilities and other services, as is necessary for
the development thereof or such utilities and other services are or will be
available, in all material respects, to such property. All leases pursuant to
which the Company or any Company Subsidiary leases from others material
amounts of real or personal property are in good standing, valid and effective
in accordance with their respective terms, and there is not under any of such
leases, any existing default or event of default (or event which with notice
or lapse of time, or both, would constitute a material default), except where
the lack of such good standing, validity and effectiveness or the existence of
such defaults or event of defaults would not, individually or in the
aggregate, have a Company Material Adverse Effect.
 
  3.19. Taxes.
 
  (a) For purposes of this Agreement, "Tax" or "Taxes" shall mean Taxes, fees,
levies, duties, tariffs, imposts, and governmental impositions or charges of
any kind, in the nature of taxes, payable to any federal, state, local or
foreign taxing authority, including, without limitation, (i) income,
franchise, profits, gross receipts, ad valorem, net worth, value added, sales,
use, service, real or personal property, special assessments, capital stock,
license, payroll, withholding, employment, social security, workers'
compensation, unemployment compensation, utility, severance, production,
excise, stamp, occupation, premiums, windfall profits, transfer and gains
taxes, and (ii) interest, penalties, additional taxes and additions to tax
imposed with respect thereto. For purposes of this Agreement, "Tax Returns"
shall mean returns, reports, and information statements with respect to Taxes
required to be filed with the IRS or any other taxing authority, domestic or
foreign, including, without limitation, consolidated, combined and unitary tax
returns.
 
  (b) (i) The Company and the Company Subsidiaries have duly and timely (with
due regard to valid extensions properly secured) filed all Tax Returns
required to be filed by them prior to the date of this Agreement (except where
failure to duly or timely file a Tax Return or to properly secure a valid
extension of time to file the same did not have a material adverse effect on
the Company or any of the Company Subsidiaries). All Tax Returns so filed were
true, correct and complete in all material respects as filed (or as validly
amended thereafter). The Company and the Company Subsidiaries have timely
(with due regard to valid extensions properly secured) paid in full all Taxes
shown as due on all Tax Returns filed as described above (except where such
failure to timely or fully pay any Tax or to secure a valid extension of time
to pay the same did not have a material adverse effect on the Company or any
of the Company Subsidiaries).
 
  (ii) None of the Tax Returns of the Company or any of the Company
Subsidiaries contains a disclosure statement under Section 6662 (or any
predecessor provision) of the Code, or any similar provision of state, local
or foreign law.
 
  (iii) Neither the Company nor any of the Company Subsidiaries is aware of
any pending or (to the knowledge of any officer thereof) threatened action,
audit, proceeding, or investigation with respect to (A) the assessment or
collection of Taxes, (B) a claim by any Tax jurisdiction that the Company or
any Company Subsidiary has been required to file a Tax Return, but has failed
to do so, or (C) a claim for refund made by the Company or any of the Company
Subsidiaries with respect to Taxes previously paid, in any case that would
have a material adverse effect on the Company or any of the Company
Subsidiaries if ultimately determined adversely. Neither the Company nor any
of the Company Subsidiaries has requested an extension of time to file any Tax
Return not yet filed, nor has been granted any waiver of any statute of
limitations with respect to, or any extension of a period for the assessment
of, any Tax not yet paid, which extension or waiver would have a material
adverse effect on the Company or any of the Company Subsidiaries. All Tax
deficiencies formally asserted or assessed against the Company or any of the
Company Subsidiaries in writing have been paid or finally settled or are being
contested in good faith by appropriate action.
 
                                     A-11
<PAGE>
 
    (iv) All Taxes that were required to be collected or withheld by the
  Company or any of the Company Subsidiaries have been duly collected or
  withheld, and all such Taxes that the Company or any of the Company
  Subsidiaries were required to remit to any taxing authority have been duly
  remitted, except where a failure to collect, withhold or remit Taxes does
  not have a material adverse effect on the Company or any of the Company
  Subsidiaries.
 
    (v) Neither the Company nor any of the Company Subsidiaries has filed a
  consent pursuant to the collapsible corporation provisions of Section
  341(f) of the Code or agreed to have Section 341(f) (2) of the Code apply
  to any disposition of any asset owned by it.
 
    (vi) Neither the Company nor any of the Company Subsidiaries is required
  to include in income any adjustment pursuant to Section 481 of the Code (or
  similar provisions of other law or regulation) by reason of a change in
  accounting method, nor does the Company or any of the Company Subsidiaries
  have any knowledge that the IRS (or other taxing authority) has proposed,
  or (to the knowledge of any officer thereof) is considering, any such
  change in accounting method, except where any such inclusion in income or
  any such change would not have a material adverse effect on the Company or
  any of the Company Subsidiaries.
 
    (vii) The Company has no foreign stockholders for whom shares of Company
  Common Stock and the Convertible Notes are United States real property
  interests as defined in Section 897 of the Code.
 
    (viii) None of the assets of the Company or any of the Company
  Subsidiaries is property which is required to be treated as owned by any
  other person pursuant to the "safe harbor lease" provisions of former
  Section 168(f)(5)(B) of the Code.
 
    (ix) Neither the Company nor any of the Company Subsidiaries is a party
  to, is bound by, or has any obligation under, any Tax sharing or Tax
  indemnification or similar agreement or arrangement with any entity other
  than a corporation that is a member of an affiliated group currently filing
  a consolidated federal income tax return with the Company.
 
    (x) Neither the Company nor any of the Company Subsidiaries has entered
  into any compensatory agreements with respect to the performance of
  services under which payment would result in a nondeductible expense to the
  Company or any of the Company Subsidiaries pursuant to Sections 162(m) or
  280G of the Code or an excise tax to the recipient of such payment pursuant
  to Section 4999 of the Code.
 
    (xi) The Company has made available to or provided to representatives of
  DRHI copies of all federal and state income and franchise Tax Returns, and
  other written correspondence with respect thereto (other than requests for
  extension of time to file returns and tax payment vouchers), filed or
  submitted by the Company and the Company Subsidiaries with or to the
  relevant taxing authorities with respect to all periods beginning on or
  after May 31, 1994, and has produced for DRHI's inspection at the Company's
  headquarters all material sales tax, use tax, payroll tax, and property tax
  and information returns filed by the Company and the Company Subsidiaries
  with respect to such periods.
 
  3.20. Intellectual Property. The Company and the Company Subsidiaries own,
or are licensed or otherwise possess legally enforceable rights to use, all
patents, trademarks, trade names, service marks, copyrights, and any
applications therefor, technology, know-how, computer software programs or
applications, and tangible or intangible proprietary information or material
that are used in the business of the Company and the Company Subsidiaries as
currently conducted, except as would not, individually or in the aggregate,
have a Company Material Adverse Effect.
 
  3.21. Environmental Matters. Except for such matters that, individually or
in the aggregate, would not have a Company Material Adverse Effect: (a) the
Company and the Company Subsidiaries have complied with all applicable
Environmental Laws; (b) the properties currently owned or operated by the
Company or any Company Subsidiary (including soils, groundwater, surface
water, buildings or other structures) do not contain
 
                                     A-12
<PAGE>
 
and, to the Company's knowledge, have not previously contained any Hazardous
Substances; (c) the properties formerly owned or operated by the Company or
any Company Subsidiary did not contain any Hazardous Substances at any time
during the period of ownership or operation by the Company or the Company
Subsidiary; (d) neither the Company nor any Company Subsidiary has disposed of
any Hazardous Substance on any third party property which could reasonably be
expected to result in any liability under Environmental Law; (e) neither the
Company nor any Company Subsidiary has released any Hazardous Substance at any
property owned or operated by any of them which could reasonably be expected
to result in any liability under Environmental Law; (f) neither the Company
nor any Company Subsidiary has received any written notice, demand, letter,
claim or request for information alleging that the Company or any Company
Subsidiary may be in violation of or liable under any Environmental Law; (g)
neither the Company nor any Company Subsidiary is a party to any orders,
decrees, injunctions or agreements with any Governmental Entity or is a party
to any indemnity or other agreement with any third party which is expected to
result in liability on the Company or any Company Subsidiary under any
Environmental Law; (h) there are no circumstances, conditions or activities
involving the Company or any Company Subsidiary that could reasonably be
expected to result in any liability or costs to the Company or any Company
Subsidiary or any restrictions on the ownership, use or transfer of any
property now owned by the Company or a Company Subsidiary pursuant to any
Environmental Law; and (i) to the knowledge of the Company, none of the
properties now owned or operated by the Company or any Company Subsidiary
contains any underground storage tanks, asbestos-containing material, lead-
based products, or polychlorinated biphenyls.
 
  As used herein, "Environmental Law" means any federal, state, local or
foreign law, regulation, rule, treaty, order, decree, permit, authorization,
or the common law or any requirement of any governmental authority relating
to: (A) the protection, investigation or restoration of the environment, or
natural resources; (B) the handling, use, presence, disposal, release or
threatened release of any Hazardous Substance; or (C) noise, odor, wetlands,
pollution, contamination or injury or threat of injury to persons or property;
and "Hazardous Substance" means any substance that is listed or regulated by
any Environmental Law, including any petroleum product or by-product,
asbestos-containing material, lead-containing paint or plumbing,
polychlorinated biphenyls, radioactive materials or radon.
 
  3.22. Interested Party Transactions. Except as set forth in Section 3.22. of
the Company Disclosure Schedule or in the Company SEC Reports, since the date
of the Company's proxy statement dated July 8, 1997, no event has occurred
that would be required to be reported as a Certain Relationship or Related
Transaction, pursuant to Item 404 of Regulation S-K promulgated by the SEC.
 
  3.23. Insurance. The Company maintains insurance with financially
responsible insurance companies in amounts customary in its industry to insure
it against risks and losses associated with the operation of the business and
properties of the Company and the Company Subsidiaries.
 
  3.24. Opinions of Financial Advisors. The Company Board has received the
opinion of the Company's financial advisors, Smith Barney Inc. and Salomon
Brothers Inc (collectively, "Salomon Smith Barney") and the non-employee
directors have received the opinion of Morgan Stanley & Co., Inc. ("Morgan
Stanley"), each to the effect that, as of the date of this Agreement, the
Exchange Ratio is fair from a financial point of view to such holders.
 
  3.25. Brokers. No broker, finder or investment banker (other than Salomon
Smith Barney and Morgan Stanley) is entitled to any brokerage, finder's or
other fee or commission in connection with the transactions contemplated by
this Agreement based upon arrangements made by or on behalf of the Company.
The Company has heretofore furnished to DRHI a complete and correct copy of
all agreements between the Company and Salomon Smith Barney and Morgan Stanley
pursuant to which such firms would be entitled to any payment relating to the
transactions contemplated hereunder.
 
  3.26. Section 203 of the Delaware Law; Arizona Corporate Takeover
Statute. The Company Board has taken all actions so that the restrictions
contained in Section 203 of the Delaware Law applicable to a "business
 
                                     A-13
<PAGE>
 
combination" (as defined in Section 203) will not apply to the execution,
delivery or performance of this Agreement or the consummation of the
transactions contemplated by this Agreement. The Company is not an "issuing
public corporation" within the meaning of the Arizona Corporate Takeover
Statute.
 
  3.27. Tax Treatment; Pooling Matters. Neither the Company nor, to the
knowledge of the Company, any of its affiliates has taken or agreed to take
any action that would prevent accounting for the business combination to be
effected by the Merger as a pooling of interests for financial reporting
purposes in accordance with generally accepted accounting principles and
rules, regulations and interpretations of the SEC, or preventing the Merger
from constituting a tax-free reorganization (except with respect to cash
received in lieu of fractional shares) qualifying under Section 354(a)(1) and
Section 368(a)(1)(A) of the Code.
 
  3.28. Affiliates. Except for the directors and executive officers of the
Company, each of whom is listed in Section 3.28. of the Company Disclosure
Schedule, there are no persons who, to the knowledge of the Company, may be
deemed to be affiliates of the Company under Rule 145 of the Securities Act
("Company Affiliates").
 
  3.29. Pooling. The Company has received a letter from Arthur Andersen LLP, a
copy of which has been previously delivered to DRHI, with respect to the
eligibility of the Company for "pooling of interests" accounting treatment.
 
                                  ARTICLE 4.
 
                    Representations and Warranties of DRHI
 
  DRHI hereby represents and warrants to the Company that, except as set forth
in the written disclosure schedule delivered on or prior to the date hereof by
DRHI to the Company that is arranged in paragraphs corresponding to the
numbered and lettered paragraphs contained in this Article 4. (the "DRHI
Disclosure Schedule"):
 
  4.1 Organization, Existence and Good Standing of DRHI. DRHI is a corporation
duly organized, validly existing and in good standing under the laws of the
State of Delaware. DRHI has all necessary corporate power and authority to own
its properties and assets and to carry on its business as presently conducted.
DRHI is qualified to do business and is in good standing in each jurisdiction
where the nature or character of the property owned, leased or operated by it
or the nature of the business transacted by it makes such qualification
necessary, except where the failure to be so qualified or be in good standing
would not have a DRHI Material Adverse Effect. DRHI has delivered to the
Company a complete and correct copy of its Amended and Restated Certificate of
Incorporation and Bylaws as most recently restated and subsequently amended to
the date hereof.
 
  4.2. Organization, Existence and Good Standing of the DRHI
Subsidiaries. Section 4.2. of the DRHI Disclosure Schedule sets forth a list
of all subsidiaries of DRHI (a "DRHI Subsidiary"), the jurisdiction of
incorporation or organization, as applicable, of each DRHI Subsidiary, the
type of each DRHI Subsidiary, the percentage of DRHI's and the DRHI
Subsidiaries' ownership of the outstanding voting stock of each such corporate
DRHI Subsidiary, the authorized and outstanding capital stock of each such
corporate DRHI Subsidiary, and the type and percentage of DRHI's and the DRHI
Subsidiaries' ownership interest in each other DRHI Subsidiary. Each DRHI
Subsidiary is a corporation, business trust, general or limited partnership or
limited liability company (as specified in Section 4.2. to the DRHI Disclosure
Schedule) duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation or organization, as applicable. Each
DRHI Subsidiary has all necessary entity power and authority to own its
properties and assets and to carry on its business as presently conducted.
Each DRHI Subsidiary is qualified to do business and is in good standing in
each jurisdiction where the nature or character of the property owned, leased
or operated by it or the nature of the business transacted by it makes such
qualification necessary, except where the failure to be so qualified or be in
good standing would not have a DRHI Material Adverse Effect. Except for the
DRHI Subsidiaries, DRHI does not, directly or indirectly, own any equity
interest in any other corporation, association, partnership, joint
 
                                     A-14
<PAGE>
 
venture, business organization or limited liability company or other entity,
with respect to which interest DRHI, any DRHI Subsidiary has invested or is
required to invest $100,000 or more, excluding securities in any publicly
traded company held for investment and comprising less than five percent of
the outstanding voting securities of such company.
 
  4.3 Capitalization.
 
  4.3.1. Capitalization of DRHI and the DRHI Subsidiary. The authorized
capital stock of DRHI consists solely of 100,000,000 shares of the DRHI Common
Stock and 30,000,000 shares of preferred stock, $.10 par value per share
("DRHI Preferred Stock'). As of the date hereof: (i) 37,352,663 shares of the
DRHI Common Stock were issued and outstanding and no shares of the DRHI Common
Stock were held in treasury, (ii) 2,853,924 shares of the DRHI Common Stock
were reserved for future issuance pursuant to outstanding stock options and
(iii) no shares of the DRHI Preferred Stock were issued and outstanding. All
of the outstanding shares of the DRHI Common Stock, and all shares of the DRHI
Common Stock which may be issued prior to the Effective Time upon exercise of
any option or conversion right will be, validly issued, fully paid and
nonassessable and free of preemptive rights. Except as set forth above, as of
the date hereof there are outstanding no shares of capital stock or other
voting securities of DRHI and no equity equivalent interest in the ownership
or earnings of DRHI or the DRHI Subsidiaries. All of the outstanding shares of
capital stock, or other ownership interest, of each DRHI Subsidiary is validly
issued, fully paid and nonassessable, and is owned by DRHI or another DRHI
Subsidiary, free and clear of all security interests, liens, claims, pledges,
charges or other encumbrances of any nature whatsoever.
 
  4.3.2. Obligations to Issue Capital Stock of DRHI or the DRHI
Subsidiaries. Section 4.3.2. of the DRHI Disclosure Schedule sets forth a true
and complete list of all outstanding rights to purchase the DRHI Common Stock,
the number of shares purchasable thereunder and the per share exercise,
conversion or purchase price of each right. There are no securities of DRHI or
any DRHI Subsidiary convertible or exchangeable for shares of capital stock or
voting securities of DRHI or any DRHI Subsidiary, no options, warrants or
other similar rights, agreements, arrangements or commitments of any character
obligating DRHI or any DRHI Subsidiary to issue or sell any shares of capital
stock of, or other equity interests in, DRHI or any DRHI Subsidiary. There are
no obligations, contingent or otherwise, of DRHI or any DRHI Subsidiary to
repurchase, redeem or otherwise acquire any shares of the DRHI Common Stock or
the capital stock or other equity interest of any DRHI Subsidiary or to make
any investment (in the form of a loan, capital contribution or otherwise) in
any DRHI Subsidiary.
 
  4.4. Authority Relative to this Agreement. DRHI has all necessary corporate
power and authority to execute and deliver this Agreement and to perform its
respective obligations hereunder and to consummate the transactions
contemplated hereby. The execution and delivery of this Agreement by DRHI and
the consummation by DRHI of the transactions contemplated hereby have been
duly and validly authorized by all necessary corporate action, and no other
corporate proceedings on the part of DRHI are necessary to authorize this
Agreement or to consummate the transactions so contemplated (other than the
adoption of this Agreement by the holders of a majority of the outstanding
shares of the DRHI Common Stock entitled to vote in accordance with the
Delaware Law and DRHI's Amended and Restated Certificate of Incorporation and
Bylaws). This Agreement has been duly and validly executed and delivered by
DRHI and, assuming the due authorization, execution and delivery by the
Company, constitutes a legal, valid and binding obligation of DRHI enforceable
against DRHI in accordance with its terms. The Board of Directors of DRHI has
unanimously resolved to recommend that the stockholders of DRHI adopt and
approve this Agreement.
 
  4.5. DRHI Material Contracts. Section 4.5. of the DRHI Disclosure Schedule
sets forth a list of all agreements to which DRHI or any DRHI Subsidiary is a
party or by which any of them is bound which, as of the date hereof: (i) are
required to be filed as "material contracts" with the SEC pursuant to the
requirements of the Exchange Act or (ii) under which the consequences of a
default, nonrenewal or termination would have a DRHI Material Adverse Effect
(collectively, the "DRHI Material Contracts").
 
                                     A-15
<PAGE>
 
  4.6. No Conflict. The execution and delivery of this Agreement by DRHI does
not, and the performance of this Agreement by DRHI will not, (i) conflict with
or violate the Amended and Restated Certificate of Incorporation or Bylaws of
DRHI, (ii) conflict with or violate any law, rule, regulation, order, judgment
or decree applicable to DRHI or any DRHI Subsidiary or by which its or any of
their respective properties is bound or affected, or (iii) result in any
breach of or constitute a default (or an event that with notice or lapse of
time or both would become a default) under, or impair the rights of DRHI or
any DRHI Subsidiary or alter the rights or obligations of any third party
under, or give to others any rights of termination, amendment, acceleration or
cancellation of any DRHI Material Contract, or result in the creation of a
lien or encumbrance on any of the properties or assets of DRHI or any DRHI
Subsidiary pursuant to any note, bond, mortgage, indenture, contract,
agreement, lease, license, permit, franchise or other instrument or obligation
to which DRHI or any DRHI Subsidiary is a party or by which DRHI or any DRHI
Subsidiary or any of their respective properties is bound or affected, except
in any such case for any such conflicts, violations, breaches, defaults or
other occurrences that would not have a DRHI Material Adverse Effect.
 
  4.7. Required Filings and Consents. The execution and delivery of this
Agreement by DRHI does not, and the performance of this Agreement by DRHI will
not, require any consent, approval, authorization or permit of, or filing with
or notification to, any governmental or regulatory authority, domestic or
foreign, except (i) for applicable requirements, if any, of the Securities
Act, the Exchange Act, Blue Sky Laws, the pre-merger notification requirements
of the HSR Act, and the filing and recordation of appropriate merger or other
documents as required by the Delaware Law, and (ii) where the failure to
obtain such consents, approvals, authorizations or permits, or to make such
filings or notifications, would not prevent or delay consummation of the
Merger, or otherwise prevent or delay DRHI from performing its obligations
under this Agreement, or would not otherwise have a DRHI Material Adverse
Effect.
 
  4.8. Compliance. Neither DRHI nor any DRHI Subsidiary is in conflict with,
or in default or violation of, (i) any law, rule, regulation, order, judgment
or decree applicable to DRHI or any DRHI Subsidiary or by which its or any of
their respective properties is bound or affected or (ii) any note, bond,
mortgage, indenture, contract, agreement, lease, license, permit, franchise or
other instrument or obligation, except in each case for any such conflicts,
defaults or violations which would not individually or in the aggregate have a
DRHI Material Adverse Effect.
 
  4.9. Permits. DRHI and each DRHI Subsidiary hold all permits, licenses,
easements, variances, exemptions, consents, certificates, orders and approvals
from Governmental Entities necessary for the operation of the business of DRHI
and the DRHI Subsidiaries as it is now being conducted (collectively, the
"DRHI Permits"), except where the failure to hold such DRHI Permits would not
have a DRHI Material Adverse Effect. DRHI and the DRHI Subsidiaries are in
compliance with the terms of the DRHI Permits, except where the failure to so
comply would not have a DRHI Material Adverse Effect.
 
  4.10. SEC Filings. DRHI has filed all forms, reports and documents required
to be filed with the SEC. DRHI has made available to Company (i) its Annual
Reports on Form 10-K for the fiscal years ended September 30, 1996 and 1997,
(ii) its Proxy Statement, dated December 12, 1997, for its Annual Meeting of
Stockholders, (iii) all proxy statements relating to DRHI's meetings of
stockholders (whether annual or special) held since October 1, 1995, (iv) all
other reports or registration statements (other than Reports on Form 10-Q)
filed by DRHI with the SEC since October 1, 1995, and (v) all amendments and
supplements to all such reports and registration statements filed by DRHI with
the SEC since October 1, 1995 (collectively, the "DRHI SEC Reports"). The DRHI
SEC Reports (i) were prepared in all material respects in accordance with the
requirements of the Securities Act or the Exchange Act, as the case may be,
and (ii) did not at the time they were filed (or if amended or superseded by a
filing prior to the date of this Agreement, then on the date of such filing)
contain any untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading. None of the DRHI Subsidiaries is required to file any
forms, reports or other documents with the SEC.
 
                                     A-16
<PAGE>
 
  4.11. Financial Statements. Each of the consolidated financial statements
(including, in each case, any related notes thereto) contained in the DRHI SEC
Reports was prepared in accordance with generally accepted accounting
principles applied on a consistent basis throughout the periods involved
(except as may be indicated in the notes thereto), and each fairly presents in
all material respects the consolidated financial position of DRHI and its
consolidated subsidiaries as at the respective dates thereof and the
consolidated statements of income and cash flows for the periods indicated,
except that the unaudited interim financial statements were or are subject to
normal and recurring year-end adjustments. DRHI is in full compliance with
Section 13(b)(2) of the Exchange Act.
 
  4.12. Absence of Certain Changes or Events. Except as set forth in the DRHI
SEC Reports, since October 1, 1997, there has not occurred: (i) any DRHI
Material Adverse Effect or any action, change or effect which could reasonably
be expected to have a DRHI Material Adverse Effect; (ii) any amendments or
changes in the Certificate of Incorporation or Bylaws of DRHI (except as
permitted by Section 5.3.); (iii) any damage to, destruction or loss of any
asset of DRHI or any DRHI Subsidiary (whether or not covered by insurance)
that would have a DRHI Material Adverse Effect; (iv) any material change by
DRHI in its accounting methods, principles or practices; (v) any material
revaluation by DRHI of any of its assets, including, without limitation,
writing off notes or accounts receivable other than in the ordinary course of
business; or (vi) any action or event that would have required the consent of
the Company pursuant to Section 5.3. had such action or event occurred after
the date of this Agreement.
 
  4.13. No Undisclosed Liabilities. Neither DRHI nor any DRHI Subsidiary has
any liabilities (absolute, accrued, contingent or otherwise), except
liabilities (a) in the aggregate adequately provided for in DRHI's audited
balance sheet (including any related notes thereto) as of September 30, 1997
(the "1997 DRHI Balance Sheet"), (b) incurred in the ordinary course of
business before the date of the 1997 DRHI Balance Sheet and not required under
generally accepted accounting principles to be reflected on the 1997 DRHI
Balance Sheet, (c) disclosed in the DRHI SEC Reports, or (d) incurred since
September 30, 1997 in the ordinary course of business consistent with past
practice or incurred in connection with this Agreement, that would not,
individually or in the aggregate, have a DRHI Material Adverse Effect.
 
  4.14. Absence of Litigation. Except as set forth in the DRHI SEC Reports,
there are no claims, actions, suits, proceedings or investigations pending or,
to the knowledge of DRHI, threatened against DRHI or any DRHI Subsidiary or
any properties or rights of DRHI or any DRHI Subsidiary before any court,
arbitrator or administrative, governmental or regulatory authority or body,
domestic or foreign, that would have a DRHI Material Adverse Effect or that
could reasonably be expected to prevent or delay consummation of the Merger,
or otherwise prevent or delay DRHI from performing its obligations under this
Agreement.
 
  4.15. Employee Benefit Plans.
 
  4.15.1. DRHI Employee Plans. Section 4.15.1. of the DRHI Disclosure Schedule
lists all employee pension plans (as defined in Section 3(2) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA")), all employee
welfare plans (as defined in Section 3(1) of ERISA) and all other bonus, stock
option, stock purchase, incentive, deferred compensation, supplemental
retirement, severance and other similar fringe or employee benefit plans,
programs or arrangements for the benefit of employees generally of DRHI, any
trade or business (whether or not incorporated) which is a member of a
controlled group including DRHI or which is under common control with DRHI (a
"DRHI ERISA Affiliate") within the meaning of Section 414 of the Code, or any
DRHI Subsidiary, as well as each plan with respect to which DRHI or a DRHI
ERISA Affiliate could incur liability under Section 4069 (if such plan has
been or were terminated) or Section 4212 of ERISA (collectively the "DRHI
Employee Plans"). There have been made available to the Company copies of (i)
each such written DRHI Employee Plan (other than those referred to in Section
4(b)(4) of ERISA), (ii) the most recent annual report on Form 5500 series,
with accompanying schedules and attachments, filed with respect to each DRHI
Employee Plan required to make such a filing, and (iii) the most recent
actuarial valuation for each DRHI Employee Plan subject to Title IV of ERISA.
 
                                     A-17
<PAGE>
 
  4.15.2. Absence of Certain Events. (i) None of the DRHI Employee Plans
provides retiree medical or other retiree welfare benefits to any person
(other than as required under COBRA), and none of the DRHI Employee Plans is a
"multiemployer plan" as such term is defined in Section 3(37) of ERISA; (ii)
there has been no non-exempt "prohibited transaction," as such term is defined
in Section 406 of ERISA and Section 4975 of the Code, with respect to any DRHI
Employee Plan, which would result in a DRHI Material Adverse Effect; (iii) all
DRHI Employee Plans are in compliance with the requirements prescribed by any
and all statutes (including ERISA and the Code), orders or governmental rules
and regulations currently in effect with respect thereto (including all
applicable requirements for notification to participants or the Department of
Labor, the PBGC, IRS or Secretary of the Treasury) except as would not
individually or in the aggregate result in a DRHI Material Adverse Effect, and
DRHI and each DRHI Subsidiary have performed all obligations required to be
performed by them under, and are not in default under or violation of any of
the DRHI Employee Plans except as would not individually or in the aggregate
result in a DRHI Material Adverse Effect; (iv) each DRHI Employee Plan
intended to qualify under Section 401(a) of the Code and each trust intended
to qualify under Section 501(a) of the Code is the subject of a favorable
determination letter from the IRS; (v) all contributions required to be made
to any DRHI Employee Plan pursuant to Section 412 of the Code, or the terms of
the DRHI Employee Plan or any collective bargaining agreement, have been made
on or before their due dates; (vi) with respect to each DRHI Employee Plan, no
"reportable event" within the meaning of Section 4043 of ERISA (excluding any
such event for which the 30 day notice requirement has been waived under the
regulations to Section 4043 of ERISA) nor any event described in Section 4062,
4063 or 4041 of ERISA has occurred; and (vii) neither DRHI nor any DRHI ERISA
Affiliate has incurred, nor reasonably expects to incur, any liability under
Title IV of ERISA (other than liability for premium payments to the PBGC
arising in the ordinary course).
 
  4.16. Labor Matters. Except as set forth in Section 4.16. of the DRHI
Disclosure Schedule: (i) there are no controversies pending or, to the
knowledge of DRHI, threatened, between DRHI or any DRHI Subsidiary and any of
their respective employees, which controversies have had or could reasonably
be expected to have a DRHI Material Adverse Effect; (ii) neither DRHI nor any
DRHI Subsidiary is a party to any material collective bargaining agreement or
other labor union contract applicable to persons employed by DRHI or any DRHI
Subsidiary, nor does DRHI know of any activities or proceedings of any labor
union to organize any such employees; and (iii) DRHI has no knowledge of any
strikes, slowdowns, work stoppages, lockouts, or threats thereof, by or with
respect to any employees of DRHI or any DRHI Subsidiary which could reasonably
be expected to have a DRHI Material Adverse Effect.
 
  4.17. Restrictions on Business Activities. Except for this Agreement, there
is no agreement, judgment, injunction, order or decree binding upon DRHI or
any DRHI Subsidiary which has or would have the effect of prohibiting the
conduct of business by DRHI or any DRHI Subsidiary as currently conducted,
except for any prohibitions as would not, individually or in the aggregate,
have a DRHI Material Adverse Effect.
 
  4.18. Real Property. DRHI and the DRHI Subsidiaries have good and marketable
(or indefeasible, in jurisdictions where the term "marketable" is not
customarily used) title in fee simple, or will acquire good and marketable (or
indefeasible, as the case may be) title in fee simple, to the real property
purported to be owned or optioned by them, free and clear of all liens,
charges and encumbrances, except liens for Taxes not yet due and such liens or
other imperfections of title as do not or will not materially interfere with
the present use or intended use by DRHI and the DRHI Subsidiaries or
materially affect the value or marketing of the property affected thereby and
that do not, individually or in the aggregate, have a DRHI Material Adverse
Effect. Neither DRHI nor any DRHI Subsidiary has given, nor have they
received, any notice that a breach or an event of default exists, and no
condition or event has occurred that with the giving of notice, the lapse of
time, or both would constitute a breach or event of default, by DRHI or any
DRHI Subsidiary, or to the knowledge of DRHI, any other person with respect to
any agreements, arrangements, contracts, covenants, conditions, deeds, deeds
of trust, rights-of-way, easements, mortgages, restrictions, surveys, title
insurance policies, and other documents granting to DRHI or any DRHI
Subsidiary title to or an interest in or otherwise affecting the real property
which is material to the operation of the business of DRHI and the DRHI
Subsidiaries, as presently conducted or intended to be conducted, except for
such breach or event of default that would not, individually or in the
aggregate, have a
 
                                     A-18
<PAGE>
 
DRHI Material Adverse Effect. No condemnation, eminent domain, or similar
proceeding exists, is pending or, to the knowledge of DRHI, is threatened with
respect to, or that could affect, any real property owned or leased by DRHI or
any DRHI Subsidiary that would reasonably be expected to have a DRHI Material
Adverse Effect. There is no judgment, injunction, order, decree, statute,
ordinance, rule, regulation, moratorium, or other action by a Governmental
Entity, or to the knowledge of DRHI, pending before or being considered by a
Governmental Entity, which has or would have the effect of restricting the
conduct of business by DRHI or any DRHI Subsidiary as currently conducted or
intended to be conducted by them, except for any restrictions as would not,
individually or in the aggregate, have a DRHI Material Adverse Effect. No
developer-related charges or assessments by any public authority or any other
person for public improvements or otherwise made against any property
developed by DRHI or any DRHI Subsidiary are unpaid (other than those
reflected on the DRHI Balance Sheet or incurred since the date of the DRHI
Balance Sheet in the ordinary course of DRHI's business consistent with past
practices), except for charges or assessments as would not, individually or in
the aggregate, have a DRHI Material Adverse Effect. The real property of DRHI
and the DRHI Subsidiaries to be used for homebuilding conform, in all material
respects, to the appropriate governmental authority's standards, and there is
no material impediment to approval for undeveloped real property, such
approval to allow development in the manner in which DRHI currently
anticipates building thereon, except for such as is not reasonably likely to
result in a DRHI Material Adverse Effect. The developed real property of DRHI
and the DRHI Subsidiaries has access to streets, and is serviced, in all
material respects, by all utilities and other services, as is necessary to
construct homes on such property, and such utilities and other services are
adequate for the current and intended use of such property. The undeveloped
real property of DRHI and the DRHI Subsidiaries has access to streets, and
such real property is serviced, in all material respects, by all utilities and
other services, as is necessary for the development thereof or such utilities
and other services are or will be available, in all material respects, to such
property. All leases pursuant to which DRHI or any DRHI Subsidiary leases from
others material amounts of real or personal property are in good standing,
valid and effective in accordance with their respective terms, and there is
not under any of such leases, any existing default or event of default (or
event which with notice or lapse of time, or both, would constitute a material
default), except where the lack of such good standing, validity and
effectiveness or the existence of such defaults or event of defaults would
not, individually or in the aggregate, have a DRHI Material Adverse Effect.
 
  4.1.9. Taxes.
 
  (a) DRHI and the DRHI Subsidiaries have duly and timely (with due regard to
valid extensions properly secured) filed all Tax Returns required to be filed
by them prior to the date of this Agreement (except where failure to duly or
timely file a Tax Return or to properly secure a valid extension of time to
file the same did not have a material adverse effect on DRHI or any of the
DRHI Subsidiaries). All Tax Returns so filed were true, correct and complete
in all material respects as filed (or as validly amended thereafter). DRHI and
the DRHI Subsidiaries have timely (with due regard to valid extensions
properly secured) paid in full all Taxes shown as due on all Tax Returns filed
as described above (except where such failure to timely or fully pay any Tax
or to secure a valid extension of time to pay the same did not have a material
adverse effect on DRHI or any of the DRHI Subsidiaries).
 
  (b) None of the Tax Returns of DRHI or any of the DRHI Subsidiaries contains
a disclosure statement under Section 6662 (or any predecessor provision) of
the Code, or any similar provision of state, local or foreign law.
 
  (c) Neither DRHI nor any of the DRHI Subsidiaries is aware of any pending or
(to the knowledge of any officer thereof) threatened action, audit,
proceeding, or investigation with respect to (i) the assessment or collection
of Taxes, (ii) a claim by any Tax jurisdiction that DRHI or any DRHI
Subsidiary has been required to file a Tax Return, but has failed to do so, or
(iii) a claim for refund made by DRHI or any of the DRHI Subsidiaries with
respect to Taxes previously paid, in any case that would have a material
adverse effect on DRHI or any of the DRHI Subsidiaries if ultimately
determined adversely. Neither DRHI nor any of the DRHI Subsidiaries has
requested an extension of time to file any Tax Return not yet filed, nor has
been granted any
 
                                     A-19
<PAGE>
 
waiver of any statute of limitations with respect to, or any extension of a
period for the assessment of, any Tax not yet paid, which extension or waiver
would have a material adverse effect on DRHI or any of the DRHI Subsidiaries.
All Tax deficiencies formally asserted or assessed against DRHI or any of the
DRHI Subsidiaries in writing have been paid or finally settled or are being
contested in good faith by appropriate action.
 
  (d) All Taxes that were required to be collected or withheld by DRHI or any
of the DRHI Subsidiaries have been duly collected or withheld, and all such
Taxes that DRHI or any of the DRHI Subsidiaries were required to remit to any
taxing authority have been duly remitted, except where a failure to collect,
withhold or remit Taxes does not have a material adverse effect on DRHI or any
of the DRHI Subsidiaries.
 
  (e) Neither DRHI nor any of the DRHI Subsidiaries has filed a consent
pursuant to the collapsible corporation provisions of Section 341(f) of the
Code or agreed to have Section 341(f) (2) of the Code apply to any disposition
of any asset owned by it.
 
  (f) Neither DRHI nor any of the DRHI Subsidiaries is required to include in
income any adjustment pursuant to Section 481 of the Code (or similar
provisions of other law or regulation) by reason of a change in accounting
method, nor does DRHI or any of the DRHI Subsidiaries have any knowledge that
the IRS (or other taxing authority) has proposed, or (to the knowledge of any
officer thereof) is considering, any such change in accounting method, except
where any such inclusion in income or any such change would not have a
material adverse effect on DRHI or any of the DRHI Subsidiaries.
 
  (g) DRHI has no foreign stockholders for whom shares of DRHI Common Stock
are United States real property interests as defined in Section 897 of the
Code.
 
  (h) None of the assets of DRHI or any of the DRHI Subsidiaries is property
which is required to be treated as owned by any other person pursuant to the
"safe harbor lease" provisions of former Section 168(f)(5)(B) of the Code.
 
  (i) Neither DRHI nor any of the DRHI Subsidiaries is a party to, is bound
by, or has any obligation under, any Tax sharing or Tax indemnification or
similar agreement or arrangement within any entity other than a corporation
that is a member of an affiliated group currently filing a consolidated
federal income tax return with DRHI.
 
  (j) Neither DRHI nor any of the DRHI Subsidiaries has entered into any
compensatory agreements with respect to the performance of services under
which payment would result in a nondeductible expense to DRHI or any of the
DRHI Subsidiaries pursuant to Sections 162(m) or 280G of the Code or an excise
tax to the recipient of such payment pursuant to Section 4999 of the Code.
 
  (k) DRHI has made available to or provided to representatives of the Company
copies of all federal and state income and franchise Tax Returns, and other
written correspondence with respect thereto (other than requests for extension
of time to file returns and tax payment vouchers), filed or submitted by the
DRHI and the DRHI Subsidiaries with or to the relevant taxing authorities with
respect to all periods beginning on or after September 30, 1994, and has
produced for the Company's inspection at DRHI's headquarters all material
sales tax, use tax, payroll tax, and property tax and information returns
filed by DRHI and the DRHI Subsidiaries with respect to such periods.
 
  4.20. Intellectual Property. DRHI and the DRHI Subsidiaries own, or are
licensed or otherwise possess legally enforceable rights to use, all patents,
trademarks, trade names, service marks, copyrights, and any applications
therefor, technology, know-how, computer software programs or applications,
and tangible or intangible proprietary information or material that are used
in the business of DRHI and the DRHI Subsidiaries as currently conducted,
except as would not, individually or in the aggregate, have a DRHI Material
Adverse Effect.
 
                                     A-20
<PAGE>
 
  4.21. Environmental Matters. Except for such matters that, individually or
in the aggregate, would not have a DRHI Material Adverse Effect: (a) DRHI and
the DRHI Subsidiaries have complied with all applicable Environmental Laws;
(b) the properties currently owned or operated by DRHI or any DRHI Subsidiary
(including soils, groundwater, surface water, buildings or other structures)
do not contain and, to DRHI's knowledge, have not previously contained any
Hazardous Substances; (c) the properties formerly owned or operated by DRHI or
any DRHI Subsidiary did not contain any Hazardous Substances at any time
during the period of ownership or operation by DRHI or the DRHI Subsidiary;
(d) neither DRHI nor any DRHI Subsidiary has disposed of any Hazardous
Substance on any third party property which could reasonably be expected to
result in any liability under any Environmental Law; (e) neither DRHI nor any
DRHI Subsidiary has released any Hazardous Substance at any property owned or
operated by any of them which could reasonably be expected to result in any
liability under any Environmental Law; (f) neither DRHI nor any DRHI
Subsidiary has received any written notice, demand, letter, claim or request
for information alleging that DRHI or any DRHI Subsidiary may be in violation
of or liable under any Environmental Law; (g) neither DRHI nor any DRHI
Subsidiary is a party to any orders, decrees, injunctions or agreements with
any Governmental Entity or is a party to any indemnity or other agreement with
any third party which is expected to result in liability on DRHI or any DRHI
Subsidiary under any Environmental Law; (h) there are no circumstances,
conditions or activities involving DRHI or any DRHI Subsidiary that could
reasonably be expected to result in any liability or costs to DRHI or any DRHI
Subsidiary or any restrictions on the ownership, use or transfer of any
property now owned by DRHI or a DRHI Subsidiary pursuant to any Environmental
Law; and (i) to the knowledge of DRHI, none of the properties now owned or
operated by DRHI or any DRHI Subsidiary contains any underground storage
tanks, asbestos-containing material, lead-based products, or polychlorinated
biphenyls.
 
  4.22. Insurance. DRHI maintains insurance with financially responsible
insurance companies in amounts customary in its industry to insure it against
risks and losses associated with the operation of the business and properties
of DRHI and the DRHI Subsidiaries.
 
  4.23. Brokers. No broker, finder or investment banker (other than Donaldson,
Lufkin & Jenrette Securities Corporation ("DLJ")) is entitled to any
brokerage, finder's or other fee or commission in connection with the
transactions contemplated by this Agreement based upon arrangements made by or
on behalf of the Company. DRHI has heretofore furnished to Company a complete
and correct copy of all agreements between DRHI and DLJ pursuant to which such
firm would be entitled to any payment relating to the transactions
contemplated hereunder.
 
  4.24. DRHI Common Stock. On the Closing Date, DRHI will have a sufficient
number of authorized but unissued or treasury shares of the DRHI Common Stock
available for issuance to the holders of the Company Shares, Stock Options and
Convertible Notes in accordance with the provisions of this Agreement. The
DRHI Common Stock to be issued pursuant to this Agreement will, when so
delivered, be (i) duly and validly issued, fully paid and nonassessable, and
(ii) listed on the New York Stock Exchange ("NYSE"), upon official notice of
issuance.
 
  4.25. Tax Treatment; Pooling Matters. Neither DRHI nor, to the knowledge of
DRHI, any of its affiliates has taken or agreed to take any action that would
prevent accounting for the business combination to be effected by the Merger
as a pooling of interests for financial reporting purposes in accordance with
generally accepted accounting principles and rules, regulations and
interpretations of the SEC, or preventing the Merger from constituting a tax-
free reorganization (except with respect to cash received in lieu of
fractional shares) qualifying under Section 354(a)(1) and Section 368(a) of
the Code.
 
  4.26. Investment Intent. DRHI is acquiring the Company Shares hereunder for
its own account and not with a view to the distribution or sale thereof, and
DRHI has no understanding, agreement, or arrangement to sell, distribute,
partition or otherwise transfer or assign all or any part of the Company
Shares to any other person.
 
                                     A-21
<PAGE>
 
  4.27. Sufficient Funds. At the Effective Time DRHI will have available to it
sufficient funds to satisfy the obligations of the Company as a result of the
Merger, if any, (i) to repurchase the Company's outstanding 10% Senior Notes
due April 2006 and (ii) under the Company's revolving and warehouse lines of
credit.
 
  4.28. Pooling. DRHI has received a letter from Ernst & Young LLP, a copy of
which has been previously delivered to the Company, with respect to the
eligibility of DRHI for "pooling of interests" accounting treatment.
 
                                  ARTICLE 5.
 
                    Conduct of Business Pending the Merger
 
  5.1 Conduct of Business by the Company Pending the Merger. The Company
covenants and agrees that, during the period from the date of this Agreement
and continuing until the earlier of the termination of this Agreement or the
Effective Time, unless DRHI shall otherwise agree in writing, the Company
shall conduct its business and shall cause the businesses of the Company
Subsidiaries to be conducted only in, and the Company and the Company
Subsidiaries shall not take any action except in, the ordinary course of
business in the manner consistent with past practice. The Company shall use
reasonable commercial efforts to preserve substantially intact the business
organization of the Company and the Company Subsidiaries, to keep available
the services of the present officers, employees and consultants of the Company
and the Company Subsidiaries and to preserve the present relationships of the
Company and the Company Subsidiaries with customers, suppliers and other
persons with which the Company or any Company Subsidiary has significant
business relations. By way of amplification and not limitation, except as
contemplated by this Agreement, neither the Company nor any Company Subsidiary
shall, during the period from the date of this Agreement and continuing until
the earlier of the termination of this Agreement or the Effective Time,
directly or indirectly do any of the following without the prior written
consent of DRHI:
 
    (a) except as set forth in Section 5.1.(a) of the Company Disclosure
  Schedule, amend or otherwise change the Certificate of Incorporation or
  Bylaws of the Company or the organizational documents of any Company
  Subsidiary;
 
    (b) issue, sell, pledge, dispose of or encumber, or authorize the
  issuance, sale, pledge, disposition or encumbrance of, any shares of
  capital stock of any class, or any options, warrants, convertible
  securities or other rights of any kind to acquire any shares of capital
  stock, or any other ownership interest (including, without limitation, any
  phantom interest) in the Company (except for the issuance of shares of
  Company Common Stock pursuant to any previously granted Stock Option or
  upon conversion of the Convertible Notes);
 
    (c) except as set forth in Section 5.1.(c) of the Company Disclosure
  Schedule, sell, pledge, dispose of or encumber any assets of the Company or
  any Company Subsidiary, except for (i) sales of assets in the ordinary
  course of business in a manner consistent with past practice, (ii)
  disposition of obsolete or worthless assets, (iii) sales of immaterial
  assets not in excess of $100,000 individually, and (iv) liens on assets to
  secure purchase money and construction financings in the ordinary course of
  business consistent with past practice or arising under the Company's
  existing revolving and warehouse lines of credit and other encumbrances
  entered into in the ordinary course of business consistent with past
  practice;
 
    (d) (i) declare, set aside, make or pay any dividend or other
  distribution (whether in cash, stock or property or any combination
  thereof) in respect of any of its capital stock, except for quarterly cash
  dividends not in excess of $.05 per share paid in accordance with past
  practice, and except that a wholly owned Company Subsidiary may declare and
  pay a dividend or make advances to its parent or the Company, (ii) split,
  combine or reclassify any of its capital stock or issue or authorize or
  propose the issuance of any other securities in respect of, in lieu of or
  in substitution for shares of its capital stock, or (iii) amend the terms
  or change the period of exercisability of, purchase, repurchase, redeem or
  otherwise acquire, or permit any Company Subsidiary to purchase,
  repurchase, redeem or otherwise acquire, any of
 
                                     A-22
<PAGE>
 
  its securities, including, without limitation, shares of Company Common
  Stock or any option, warrant or right, directly or indirectly, to acquire
  shares of Company Common Stock, or propose to do any of the foregoing;
 
    (e) except as set forth in Section 5.1.(e) of the Company Disclosure
  Schedule, (i) acquire (by merger, consolidation, or acquisition of stock or
  assets) any corporation, partnership or other business organization or
  division thereof; (ii) incur any indebtedness for borrowed money or issue
  any debt securities or assume, guarantee or endorse or otherwise as an
  accommodation become responsible for, the obligations of any person, except
  under existing lines of credit in the ordinary course of business
  consistent with past practice, or make any loans or advances (other than
  loans or advances to or from direct or indirect wholly owned Company
  Subsidiaries or pursuant to existing contracts or contracts for the
  acquisition or development of land entered into in the ordinary course of
  business consistent with past practice), (iii) enter into or amend any
  contract or agreement, other than in the ordinary course of business
  consistent with past practice, that is or would be a Material Contract or
  is otherwise material to the Company and the Company Subsidiaries taken as
  a whole; or (iv) authorize any capital expenditures or purchase of fixed
  assets (other than the purchase of land in the ordinary course of business
  consistent with past practice) which are, in the aggregate, in excess of
  $100,000 individually or $1,000,000 in the aggregate;
 
    (f) except as set forth in Section 5.1.(f) of the Company Disclosure
  Schedule or as may be required by law, increase the compensation payable or
  to become payable to its officers or employees, grant any severance or
  termination pay to, or enter into any employment or severance agreement
  with any director, officer or other employee of the Company or any Company
  Subsidiary, or establish, adopt, enter into or amend any collective
  bargaining, bonus, profit sharing, thrift, compensation, stock option,
  restricted stock, pension, retirement, deferred compensation, employment,
  termination, severance or other plan, agreement, trust, fund, policy or
  arrangement for the benefit of any current or former directors, officers or
  employees, except increases in annual compensation for employees in the
  ordinary course consistent with past practice to the extent such
  compensation increases do not result in a material increase in compensation
  expense to the Company;
 
    (g) change accounting policies or procedures (including, without
  limitation, procedures with respect to revenue recognition, payments of
  accounts payable and collection of accounts receivable);
 
    (h) make any material Tax election inconsistent with past practice or
  settle or compromise any material federal, state, local or foreign Tax
  liability or agree to an extension of a statute of limitations with respect
  to any material amount of Tax, except to the extent the amount of any such
  settlement or compromise has been reserved for in the financial statements
  contained in the Company SEC Reports filed prior to the date hereof; and
 
    (i) take, or agree to take, any of the actions described in Sections
  5.1.(a) through (h) above, or any action which would make any of the
  representations or warranties of the Company contained in this Agreement
  untrue or incorrect in any material respect as contemplated hereby or
  prevent the Company from performing or cause the Company not to perform in
  any material respect its covenants hereunder.
 
  5.2. No Solicitation.
 
  (a) The Company shall, and shall cause the Company Subsidiaries and its and
their respective officers, directors, employees, representatives and agents
to, immediately cease any discussions or negotiations with any parties with
respect to any Third Party Acquisition (as defined below). The Company shall
not, nor shall the Company authorize or permit any Company Subsidiary or any
of its or their respective officers, directors, employees, representatives or
agents to, directly or indirectly, encourage, solicit, participate in or
initiate discussions or negotiations with or provide any non-public
information to any person or group (other than DRHI or any designees of DRHI)
concerning any Third Party Acquisition; provided, however, that (i) nothing
herein shall prevent the Company Board from taking and disclosing to the
Company's stockholders a position contemplated by Rules 14d-9 and 14e-2
promulgated under the Exchange Act with regard to any tender offer; and (ii)
the Company may make inquiry of and participate in discussions or negotiations
with any person or
 
                                     A-23
<PAGE>
 
group who has submitted after the date hereof an unsolicited and unencouraged
Superior Proposal if, and to the extent, the Company Board by requisite vote
determines in its good faith judgment, after consultation with and based upon
the advice of outside legal counsel, that it is required to do so in order to
comply with its fiduciary duties. The Company shall promptly notify DRHI in
the event it receives any proposal or inquiry concerning a Third Party
Acquisition, including the terms and conditions thereof and the identity of
the party submitting such proposal, and shall advise DRHI from time to time of
the status and any material developments concerning the same.
 
  (b) Except as set forth in this Section 5.2.(b) the Company Board shall not
withdraw its recommendation of the transactions contemplated hereby or approve
or recommend, or cause the Company to enter into any agreement with respect
to, any Third Party Acquisition. Notwithstanding the foregoing, if the Company
Board by requisite vote determines in its good faith judgment, after
consultation with and based upon the advice of outside legal counsel, that it
is required to do so in order to comply with its fiduciary duties, the Company
Board may withdraw its recommendation of the transactions contemplated hereby
or approve or recommend a Superior Proposal, but in each case only (i) after
providing reasonable written notice to DRHI (a "Notice of Superior Proposal")
advising DRHI that the Company Board has received a Superior Proposal,
specifying the material terms and conditions of such Superior Proposal and
identifying the person making such Superior Proposal and (ii) if DRHI does
not, within three business days of DRHI's receipt of the Notice of Superior
Proposal, make an offer which the Company Board by requisite vote determines
in its good faith judgment (based on the advice of a financial adviser of
nationally recognized reputation) to be as favorable to the Company's
stockholders as such Superior Proposal; provided, however, that the Company
shall not be entitled to enter into any agreement with respect to a Superior
Proposal unless and until this Agreement is terminated by its terms pursuant
to Section 7.1. Any disclosure that the Company Board may be compelled to make
with respect to the receipt of a proposal for a Third Party Acquisition in
order to comply with its fiduciary duties or Rule 14d-9 or 14e-2 will not
constitute a violation of this Section 5.2.(b) provided that such disclosure
states that no action will be taken by the Company Board with respect to the
withdrawal of its recommendation of the transactions contemplated hereby or
the approval or recommendation of any Third Party Acquisition except in
accordance with this Section 5.2.(b).
 
  (c) For the purposes of this Agreement, "Third Party Acquisition" means the
occurrence of any of the following events: (i) the acquisition of the Company
by merger or otherwise by any person (which includes a "person" as such term
is defined in Section 13(d)(3) of the Exchange Act) other than DRHI or any
affiliate thereof (a "Third Party"); (ii) the acquisition by a Third Party of
more than 35% of the total assets of the Company and the Company Subsidiaries
taken as a whole; (iii) the acquisition by a Third Party of 35% or more of the
outstanding Shares; (iv) the adoption by the Company of a plan of liquidation
or the declaration or payment of an extraordinary dividend; or (v) the
repurchase by the Company or any Company Subsidiary of more than 35% of the
outstanding Shares. For purposes of this Agreement, a "Superior Proposal"
means any bona fide proposal to acquire directly or indirectly for
consideration consisting of cash and/or securities more than 50% of the
Company Shares then outstanding or all or substantially all the assets of the
Company and otherwise on terms which the Company Board by requisite vote
determines in its good faith judgment (based on the advice of a financial
adviser of nationally recognized reputation) to be more favorable to the
Company's stockholders than the Merger.
 
  5.3. Conduct of Business by DRHI Pending the Merger. DRHI covenants and
agrees that, during the period from the date of this Agreement and continuing
until the earlier of the termination of this Agreement or the Effective Time,
unless the Company shall otherwise agree in writing, which agreement shall not
be unreasonably withheld or delayed, DRHI shall conduct its business and shall
cause the businesses of the DRHI Subsidiaries to be conducted only in, and
DRHI and the DRHI Subsidiaries shall not take any action except in, the
ordinary course of business in the manner consistent with past practice. By
way of amplification and not limitation, except as contemplated by this
Agreement, neither DRHI nor any DRHI Subsidiary shall, during the period from
the date of this Agreement and continuing until the earlier of the termination
of this Agreement or the Effective Time, directly or indirectly do any of the
following without the prior written consent of the Company, which consent
shall not be unreasonably withheld or delayed:
 
                                     A-24
<PAGE>
 
    (a) amend or otherwise change the Amended and Restated Certificate of
  Incorporation or Bylaws of DRHI other than incident to a stock split or
  combination;
 
    (b) (i) declare, set aside, make or pay any dividend or other
  distribution (whether in cash, stock or property or any combination
  thereof) in respect of any of its capital stock, except for quarterly cash
  dividends paid out of current earnings and stock dividends and except that
  a wholly owned DRHI Subsidiary may declare and pay a dividend to its parent
  or DRHI or (ii) reclassify any of its capital stock or issue or authorize
  or propose the issuance of any other securities in respect of, in lieu of
  or in substitution for shares of its capital stock;
 
    (c) (i) acquire (by merger, consolidation, or acquisition of stock or
  assets) any corporation, partnership or other business organization or
  division thereof if such transaction would prevent or materially delay the
  consummation of the transactions contemplated by this Agreement or if the
  amount of consideration paid exceeds the largest amount of consideration
  paid by DRHI in an acquisition prior to the date hereof;
 
    (d) issue any shares of capital stock of any class (except pursuant to
  stock options issued under DRHI's stock option plans or in any stock
  dividend) in one transaction or series of related transactions if the
  shares so issued constitute more than 15% of the outstanding shares of such
  class (after giving effect to such issuance); and
 
    (e) take, or agree to take, any of the actions described in Sections
  5.3.(a) through (d) above, or any action which would make any of the
  representations or warranties of DRHI contained in this Agreement untrue or
  incorrect in any material respect as contemplated hereby or prevent DRHI
  from performing or cause DRHI not to perform in any material respect its
  covenants hereunder.
 
                                  ARTICLE 6.
 
                             Additional Agreements
 
  6.1 HSR Act. As promptly as practicable after the date of this Agreement,
the Company and DRHI shall file notifications under the HSR Act in connection
with the Merger and the transactions contemplated hereby and thereafter use
reasonable efforts to respond as promptly as practicable to any inquiries
received from the Federal Trade Commission (the "FTC') and the Antitrust
Division of the Department of Justice (the "Antitrust Division") for
additional information or documentation and to respond as promptly as
practicable to all inquiries and requests received from any State Attorney
General or other governmental authority in connection with antitrust matters.
 
  6.2. Access to Information; Confidentiality.
 
  (a) Upon reasonable notice and subject to restrictions contained in
confidentiality agreements to which such party is subject (from which such
party shall use reasonable efforts to be released), the Company shall (and
shall cause each Company Subsidiary to) afford to the officers, employees,
accountants, counsel and other representatives of DRHI reasonable access,
during the period to the Effective Time, to all its properties, books,
contracts, commitments and records and, during such period, the Company shall
(and shall cause each Company Subsidiary to) furnish promptly to DRHI all
information concerning its business, properties and personnel as such other
party may reasonably request.
 
  (b) Upon reasonable notice and subject to restrictions contained in
confidentiality agreements to which such party is subject (from which such
party shall use reasonable efforts to be released), DRHI shall (and shall
cause each DRHI Subsidiary to) afford to the officers, employees, accountants,
counsel and other representatives of the Company reasonable access, during the
period to the Effective Time, to all its properties, books, contracts,
commitments and records and, during such period, DRHI shall (and shall cause
each DRHI Subsidiary to) furnish promptly to the Company all information
concerning its business, properties and personnel as such other party may
reasonably request.
 
                                     A-25
<PAGE>
 
  (c) Each of DRHI and the Company shall make available to the other the
appropriate individuals (including attorneys, accountants and other
professionals) for discussion of the other's business, properties and
personnel as either DRHI or the Company may reasonably request. The Company
and DRHI shall keep all information obtained under this Section 6.2.
confidential in accordance with the terms of the confidentiality letters,
dated November 17, 1997 and December 4, 1997 (the "Confidentiality Letters"),
between DRHI and the Company.
 
  6.3. Registration Statement.
 
  (a) DRHI shall prepare and file with the SEC and any other applicable
regulatory bodies, as soon as reasonably practicable, a Registration Statement
on Form S-4 with respect to the shares of the DRHI Common Stock to be issued
in the Merger (together with any amendments or supplements thereto, the
"Registration Statement"), and will otherwise proceed promptly to satisfy the
requirements of the Securities Act, including Rule 145 thereunder. Such
Registration Statement shall contain a joint proxy statement of DRHI and of
the Company prepared by DRHI and the Company containing the information
required by the Exchange Act (together with any amendments or supplements
thereto, the "Proxy Statement"). DRHI shall use its reasonable best efforts to
cause the Registration Statement to be declared effective and to maintain such
effectiveness until all of the shares of the DRHI Common Stock covered thereby
have been distributed. DRHI shall promptly amend or supplement the
Registration Statement to the extent necessary in order to make the statements
therein not misleading or to correct any statements which have become false or
misleading. The Company and DRHI shall use their reasonable best efforts to
have the Proxy Statement approved by the SEC under the provisions of the
Exchange Act. The Company and its counsel shall be given a reasonable
opportunity to review and comment on the filings made pursuant to this Section
6.3. prior to their filing with the SEC and shall be provided with any
comments DRHI and its counsel may receive from the SEC or its staff with
respect to such filings promptly after receipt of such comments.
 
  (b) The information specifically designated as being supplied by the Company
for inclusion or incorporation by reference in the Registration Statement
shall not, at the time the Registration Statement is declared effective or at
the time the Proxy Statement is first mailed to holders of the Company Common
Stock, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements therein not misleading. The information specifically designated as
being supplied by the Company for inclusion or incorporation by reference in
the Proxy Statement shall not, at the date the Proxy Statement is first mailed
to holders of the Company Common Stock and the DRHI Common Stock, contain any
untrue statement of a material fact or omit to state any material fact
required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they are made, not
misleading. If at any time prior to the Effective Time, any event or
circumstance relating to the Company, or its officers or directors, should be
discovered by the Company which should be set forth in an amendment to the
Registration Statement or a supplement to the Proxy Statement, the Company
shall promptly inform DRHI. All documents, if any, that the Company is
responsible for filing with the SEC in connection with the transactions
contemplated hereby will comply as to form and substance in all material
respects with the applicable requirements of the Securities Act and the rules
and regulations thereunder and the Exchange Act and the rules and regulations
thereunder.
 
  (c) The information specifically designated as being supplied by DRHI for
inclusion or incorporation by reference in the Registration Statement shall
not, at the time the Registration Statement is declared effective or at the
time the Proxy Statement is first mailed to holders of the Company Common
Stock and the DRHI Common Stock, contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein not misleading. The
information specifically designated as being supplied by DRHI for inclusion or
incorporation by reference in the Proxy Statement shall not, at the date the
Proxy Statement is first mailed to holders of the Company Common Stock and the
DRHI Common Stock, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstance under which they are
made, not misleading. If at any time prior to the Effective Time any event or
circumstance relating to DRHI
 
                                     A-26
<PAGE>
 
or its officers or directors should be discovered by DRHI which should be set
forth in an amendment to the Registration Statement or a supplement to the
Proxy Statement, DRHI shall promptly inform the Company and shall promptly
file such amendment to the Registration Statement. All documents that DRHI or
the Company is responsible for filing with the SEC in connection with the
transactions contemplated herein will comply as to form and substance in all
material respects with the applicable requirements of the Securities Act and
the rules and regulations thereunder and the Exchange Act and the rules and
regulations thereunder.
 
  (d) Prior to the Closing Date, DRHI shall use its reasonable best efforts to
cause the shares of the DRHI Common Stock to be issued pursuant to the Merger
to be registered or qualified under all applicable Blue Sky Laws of each of
the states and territories of the United States, and to take any other actions
which may be necessary to enable the DRHI Common Stock to be issued pursuant
to the Merger to be distributed in each such jurisdiction.
 
  (e) Prior to the Closing Date, DRHI shall file a subsequent listing
application with the NYSE relating to the shares of the DRHI Common Stock to
be issued in connection with the Merger, and shall use reasonable best efforts
to cause such shares of the DRHI Common Stock to be listed, upon official
notice of issuance, prior to the Closing Date.
 
  (f) The Company shall furnish all information to DRHI with respect to the
Company and the Company Subsidiaries as DRHI may reasonably request for
inclusion in the Registration Statement, the Proxy Statement and shall
otherwise cooperate with DRHI in the preparation and filing of such documents.
 
  (g) The Company shall use all reasonable efforts to cause Arthur Andersen
LLP to deliver a letter dated not more than five days prior to the date on
which the Registration Statement shall become effective (and updated to a date
no more than five days prior to the Closing Date) and addressed to itself and
DRHI and their respective Boards of Directors in form and substance reasonably
satisfactory to DRHI and customary in scope and substance for agreed-upon
procedures letters delivered by independent public accountants in connection
with registration statements and proxy statements similar to the Registration
Statement and the Proxy Statement.
 
  (h) DRHI shall use all reasonable efforts to cause Ernst & Young LLP to
deliver a letter dated not more than five days prior to the date on which the
Registration Statement shall become effective (and updated to a date no more
than five days prior to the Closing Date) and addressed to itself and the
Company and their respective Boards of Directors in form and substance
reasonably satisfactory to the Company and customary in scope and substance
for agreed-upon procedures letters delivered by independent public accountants
in connection with registration statements and proxy statements similar to the
Registration Statement and the Proxy Statement.
 
  6.4. Meetings of Stockholders.
 
  (a) The Company will take all steps necessary in accordance with its
Certificate of Incorporation and Bylaws to call, give notice of, convene and
hold a meeting of its stockholders (the "Company Stockholder Meeting") as soon
as practicable after the effectiveness of the Registration Statement, for the
purpose of approving and adopting this Agreement and the transactions
contemplated hereby and for such other purposes as may be necessary. Unless
this Agreement shall have been validly terminated as provided herein, the
Company Board (subject to the provisions of Section 5.2. and Section 7.1.(d)
hereof) will (i) recommend to its stockholders the approval and adoption of
this Agreement, the transactions contemplated hereby and any other matters to
be submitted to the stockholders in connection therewith, to the extent that
such approval is required by applicable law in order to consummate the Merger,
and (ii) use its reasonable good faith efforts to obtain the approval by its
stockholders of this Agreement and the transactions contemplated hereby.
 
  (b) DRHI will take all steps necessary in accordance with its Amended and
Restated Certificate of Incorporation and By-Laws to call, give notice of,
convene and hold a meeting of its stockholders (the "DRHI Stockholder
Meeting") as soon as practicable after the effectiveness of the Registration
Statement, for the
 
                                     A-27
<PAGE>
 
purpose of approving the issuance of the DRHI Shares upon consummation of the
Merger and for such other purposes as may be necessary. Unless this Agreement
shall have been validly terminated as provided herein, DRHI's Board (i) will
recommend to its stockholders the approval of the issuance of the DRHI Shares
upon consummation of the Merger and any other matters to be submitted to the
stockholders in connection therewith, to the extent that such approval is
required by applicable law or the requirements of the NYSE in order to issue
such shares, and (ii) use its reasonable good faith efforts to obtain the
approval by its stockholders of this Agreement and the transactions
contemplated hereby.
 
  6.5. Pooling and Tax-Free Reorganization Treatment. Neither DRHI nor the
Company shall take or cause to be taken any action on or before the Effective
Time, and DRHI agrees to use commercially reasonable best efforts not to take
or cause to be taken any action after the Effective Time, which would
disqualify the Merger as a "pooling of interests" for accounting purposes or
which would prevent the Merger from constituting a tax-free reorganization
(except with respect to cash received in lieu of fractional shares) within the
meaning of Section 354(a)(1) and Section 368(a)(1)(A) of the Code.
 
  6.6. Affiliate and Pooling Agreements. DRHI and the Company will each use
their respective reasonable efforts to cause each of their respective
directors and executive officers and each of their respective "affiliates"
(within the meaning of Rule 145 under the Securities Act) to execute and
deliver to DRHI as soon as practicable an agreement in the form attached
hereto as Exhibit 6.6 relating to the disposition of shares of the Company
Common Stock and shares of the DRHI Common Stock held by such person and the
shares of the DRHI Common Stock issuable pursuant to this Agreement.
 
  6.7. Company Stock Options.
 
  (a) As soon as reasonably practicable after the Effective Time, DRHI shall
deliver to the holders of the Stock Options appropriate notices setting forth
such holders' rights pursuant to the Company Stock Plans, and any stock option
agreement evidencing such Stock Options which shall continue in full force and
effect on the same terms and conditions (subject to the adjustments required
by Section 2.1.4. or this Section 6.7. after giving effect to the Merger and
the assumption of such options by DRHI as set forth herein) as in effect
immediately prior to the Effective Time. DRHI shall comply with the terms of
the Company Stock Plans and such agreements as so adjusted, and shall use its
reasonable efforts to ensure, to the extent required by, and subject to the
provisions of, such plan or agreements, that the Stock Options which qualified
as incentive stock options prior to the Effective Time shall continue to
qualify as incentive stock options after the Effective Time.
 
  (b) DRHI shall take all corporate action necessary to reserve for issuance a
sufficient number of shares of the DRHI Common Stock for delivery upon
exercise of the Stock Options assumed by DRHI in accordance with Section
2.1.4. As soon as practicable after the Effective Time, DRHI shall file with
the SEC a registration statement on Form S-8 with respect to shares of the
DRHI Common Stock subject to each such assumed Stock Option and shall use its
reasonable efforts to maintain the effectiveness of a registration statement
or registration statements covering such options (and maintain the current
status of the prospectus or prospectuses contained therein) for so long as
such the Stock Options remain outstanding.
 
  (c) Except to the extent otherwise agreed to by the parties, all
restrictions or limitations on transfer and vesting with respect to the stock
options, to the extent that such restrictions or limitations shall not have
already lapsed, shall remain in full force and effect with respect to such
options after giving effect to the Merger and the assumption by DRHI as set
forth above.
 
  6.8. Board Representation. The Company hereby designates W. Thomas Hickcox
and Bradley S. Anderson ("Mr. Anderson") for appointment or nomination for
election as directors of DRHI. Prior to the filing of the Registration
Statement, the Company may designate an individual in lieu of Mr. Anderson for
such appointment or nomination; provided that the individual so designated
shall be reasonably acceptable to DRHI and satisfy the requirements of the
NYSE for an "independent" and "outside" director of DRHI subsequent to the
Merger. DRHI shall use its best efforts, whether through increase in the size
of its Board of Directors or
 
                                     A-28
<PAGE>
 
otherwise, to cause the appointment or election of the two such designated
individuals as directors of DRHI at the Effective Time.
 
  6.9. Publication of Combined Results. DRHI agrees that after the end of the
first calendar quarter to end after the first full calendar month after the
Effective Time, DRHI shall cause the prompt publication of the combined
results of operations of DRHI and the Company. For purposes of this Section
6.9., the term "publication" shall have the meaning provided in SEC Accounting
Series Release No. 135.
 
  6.10. Indemnification and Insurance.
 
  (a) From and after the Effective Time, the Surviving Corporation shall, to
the fullest extent permitted under applicable law and the Surviving
Corporation's Certificate of Incorporation and Bylaws (including Section
145(h) of the Delaware Law), indemnify and hold harmless, each present and
former director or officer of the Company, determined as of the Effective Time
(collectively, the "Indemnified Parties"), against any costs or expenses
(including reasonable attorneys' fees), judgments, fines, losses, claims,
damages and liabilities incurred in connection with, and amounts paid in
settlement of, any claim, action, suit, proceeding or investigation, whether
civil, criminal, administrative or investigative and wherever asserted,
brought or filed, arising out of or pertaining to any acts or omissions or
alleged acts or omissions by them in their capacities as such; provided that,
as to claims existing as of the Effective Time, in no event shall the
Surviving Corporation be obligated to provide indemnification under this
Section 6.10.(a) in excess of the indemnification that the Company is required
to provide under its Certificate of Incorporation or Bylaws as in effect as of
the date hereof.
 
  (b) For a period of three years after the Effective Time, the Surviving
Corporation shall maintain (through the continuation or endorsement of the
Company's existing policy or the purchase of a "tail-end" rider permitted by
such policy) in effect, if available, the directors' and officers' liability
insurance covering those persons who are currently covered by the Company's
directors' and officers' liability insurance policy on the terms (including
the amounts of coverage and the amounts of deductibles, if any) now applicable
to them; provided that in no event shall the Surviving Corporation be required
to spend in excess of 150% of the annual premium currently paid by the Company
for such coverage, and provided further that, if the premium for such coverage
exceeds such amount, the Surviving Corporation shall maintain the greatest
coverage available for such 150% of the annual premium.
 
  (c) This Section 6.10. shall survive the consummation of the Merger at the
Effective Time, is intended to benefit the Company, the Surviving Corporation
and the Indemnified Parties, shall be binding on all successors and assigns of
the Surviving Corporation and shall be enforceable by the Indemnified Parties.
In the event that the Surviving Corporation or any of its successors or
assigns (i) consolidates or merges into any other person or entity and shall
not be the continuing or surviving corporation or entity in such consolidation
or merger or (ii) transfers all or substantially all of its properties and
assets to any person or entity, then and in such case, proper provisions shall
be made so that the successors and assigns of the Surviving Corporation (as
the case may be) assume the obligations of the Surviving Corporation set forth
in this Section 6.10.
 
  6.11. Notification of Certain Matters. The Company shall give prompt notice
to DRHI, and DRHI shall give prompt notice to the Company, of (i) the
occurrence or nonoccurrence of any event the occurrence or nonoccurrence of
which would be likely to cause any representation or warranty contained in
this Agreement to be untrue or inaccurate the result of which would be a
Material Adverse Effect to the Company or DRHI, as applicable, or (ii) any
failure of the Company or DRHI, as the case may be, materially to comply with
or satisfy any covenant, condition or agreement to be complied with or
satisfied by it hereunder; provided, however, that the delivery of any notice
pursuant to this Section 6.11. shall not limit or otherwise affect the
remedies available hereunder to the party receiving such notice.
 
  6.12. Further Action. Upon the terms and subject to the conditions hereof,
each of the parties hereto shall use all reasonable efforts to take, or cause
to be taken, all actions, and to do, or cause to be done, all other things
necessary, proper or advisable to consummate and make effective as promptly as
practicable the transactions
 
                                     A-29
<PAGE>
 
contemplated by this Agreement, to obtain in a timely manner all material
waivers, consents and approvals and to effect all necessary registrations and
filings, and otherwise to satisfy or cause to be satisfied in all material
respects all conditions precedent to its obligations under this Agreement.
 
  6.13. Public Announcements. DRHI and the Company shall consult with each
other before issuing any press release with respect to the Merger or this
Agreement and shall not issue any such press release or make any such public
statement without the prior consent of the other party, which shall not be
unreasonably withheld or delayed; provided, however, that a party may, without
the prior consent of the other party, issue such press release or make such
public statement as may upon the advice of counsel be required by law or the
rules and regulations of the NYSE if it has used all reasonable efforts to
consult with the other party.
 
  6.14. Employee Benefits. For the period of six months beginning as of the
Effective Time, DRHI shall pay salaries and wages and (to the extent permitted
by applicable law) provide employee benefits to persons who are employees of
the Company or any Company Subsidiary immediately before the Effective Time
that are at least substantially equivalent in the aggregate to those paid and
provided by the Company and the Company Subsidiaries before the Effective Time
(other than stock options or other equity-based compensation). For the period
of six months beginning at the end of the period described in the preceding
sentence, DRHI shall provide, to the extent permitted by applicable law,
employee benefits to such persons that are at least substantially equivalent
in the aggregate to those then provided by DRHI and the DRHI Subsidiaries
generally to their other employees. Nothing contained herein shall be
construed as requiring DRHI or any DRHI Subsidiary to continue the employment
or position of any specific person, but is subject to any employment or
severance agreements in effect as of the date hereof. The Company and DRHI
shall make such amendments and modifications to their respective employee
benefit plans as are necessary to provide that only those employees of the
Surviving Corporation and its subsidiaries that were eligible to participate
in the Company Employee Plans immediately prior to the Effective Time are
eligible to participate in the Company Employee Plans immediately after the
Effective Time and only those employees of the Surviving Corporation that
would have been eligible to participate in the DRHI Employee Plans immediately
prior to the Effective Time are eligible to participate in the DRHI Employee
Plans immediately after the Effective Time; provided that the foregoing shall
not limit the Surviving Corporation's ability to amend, modify or terminate
such plans after the Effective Time consistent with the terms of such plans,
the terms of this Agreement and applicable law.
 
                                  ARTICLE 7.
 
                       Termination, Amendment and Waiver
 
  7.1. Termination. This Agreement may be terminated at any time prior to the
Effective Time, whether before or after approval of matters presented in
connection with the Merger by the holders of the Company Common Stock or the
DRHI Common Stock:
 
    (a) by mutual written consent of DRHI and the Company;
 
    (b) by either DRHI or the Company:
 
      (i) if, upon a vote at a duly held meeting of stockholders or any
    adjournment thereof, any required approval of the holders of the
    Company Common Stock shall not have been obtained;
 
      (ii) if the Merger shall not have been consummated on or before May
    31, 1998, unless the failure to consummate the Merger is the result of
    a willful and material breach of this Agreement by the party seeking to
    terminate this Agreement;
 
      (iii) if a court of competent jurisdiction or governmental,
    regulatory or administrative agency or commission shall have issued a
    nonappealable final order, decree or ruling or taken any other action
    having the effect of permanently restraining, enjoining or otherwise
    prohibiting the Merger (provided that the right to terminate this
    Agreement under this Section 7.1.(b)(iii) shall not be available to any
 
                                     A-30
<PAGE>
 
    party who has not complied with its obligations under Section 6.12. and
    such noncompliance materially contributed to the issuance of any such
    order, decree or ruling or the taking of such action);
 
      (iv) in the event of a material breach by the other party of any
    representation, warranty, covenant or other agreement contained in this
    Agreement which would give rise to the failure of a condition set forth
    in Section 8.2.(a) or 8.3.(a) as applicable (a "Terminating Breach")
    (provided that the terminating party is not then in material breach of
    any representation, warranty, covenant or other agreement contained in
    this Agreement); provided, that, if such Terminating Breach is curable
    by the Company or DRHI, as the case may be, through the exercise of its
    reasonable efforts and for so long as the Company or DRHI, as the case
    may be, continues to exercise such reasonable efforts, neither DRHI nor
    the Company, respectively, may terminate this Agreement under this
    Section 7.1.(b)(iv); or
 
      (v) if, upon a vote at a duly held meeting of stockholders or any
    adjournment thereof, any required approval of the holders of the DRHI
    Common Stock shall not have been obtained;
 
    (c) by either DRHI or the Company in the event that (i) all of the
  conditions to the obligation of such party to effect the Merger set forth
  in Section 8.1. shall have been satisfied and (ii) any condition to the
  obligation of such party to effect the Merger set forth in Section 8.2. (in
  the case of DRHI) or Section 8.3. (in the case of the Company) is not
  capable of being satisfied prior to the end of the period referred to in
  Section 7.1.(b)(ii);
 
    (d) by the Company if the Company Board has received a Superior Proposal,
  the Company Board by requisite vote determines in its good faith judgment,
  after consultation with and based upon the advice of outside legal counsel,
  that it is required to do so in order to comply with its fiduciary duties,
  withdraws its recommendation of the transactions contemplated hereby or
  approves or recommends such Superior Proposal, and the Company Board
  complies with all other provisions of Section 5.2.(b) and concurrently
  complies with the provisions of Section 9.1.(b);
 
    (e) by DRHI if the Company Board shall have recommended to the Company's
  stockholders a Superior Proposal; or the Company Board shall have withdrawn
  its recommendation of this Agreement or the Merger, provided that any
  disclosure that the Company Board is compelled to make of the receipt of a
  proposal for a Third Party Acquisition in order to comply with its
  fiduciary duties or Rule 14d-9 or 14e-2 shall not in and of itself
  constitute the withdrawal of the Company Board's recommendation; provided,
  further, that such disclosure states that no action will be taken by the
  Company Board with respect to the withdrawal of its recommendation of the
  transactions contemplated hereby or the approval or recommendation of any
  Third Party Acquisition except in accordance with Section 5.2.(b); or
 
    (f) by the Company if the Stock Value is less than $12.69, unless prior
  to the Closing Date DRHI elects, by notice to the Company, to have the
  Exchange Ratio equal the quotient obtained by dividing $35.00 by the Stock
  Value (rounded to the nearest one thousandth).
 
  7.2. Effect of Termination. In the event of termination of this Agreement as
provided in Section 7.1., this Agreement shall forthwith become void and have
no effect, without any liability or obligation on the part of any party, its
affiliates, directors, officers or stockholders other than the provisions of
Section 9.1., unless such termination results from the willful and material
breach by a party of any of its representations, warranties, covenants or
other agreements set forth in this Agreement, in which event the terminating
party shall retain its rights and remedies against such other party in respect
of such other party's breach.
 
                                  ARTICLE 8.
 
                             Conditions to Closing
 
  8.1. Mutual Conditions. The respective obligations of each party to effect
the Merger shall be subject to the satisfaction at or prior to the Effective
Time of the following conditions:
 
    8.1.1. No Injunctions or Restraints; Illegality. No temporary restraining
  order, preliminary or permanent injunction or other order issued by any
  court of competent jurisdiction or other legal restraint or
 
                                     A-31
<PAGE>
 
  prohibition preventing the consummation of the Merger shall be in effect;
  and there shall not be any action taken, or any statute, rule, regulation
  or order enacted, entered, enforced or applicable to the Merger which makes
  the consummation of the Merger illegal;
 
    8.1.2. Governmental Actions. There shall not have been instituted or
  pending any action or proceeding by any governmental authority or
  administrative agency, before any governmental authority, administrative
  agency or court of competent jurisdiction, nor shall there be in effect any
  judgment, decree or order of any governmental authority, administrative
  agency or court of competent jurisdiction, in either case, seeking to
  prohibit or limit DRHI from exercising all material rights and privileges
  pertaining to its ownership of the assets of the Company (including the
  Company Subsidiaries) taken as a whole or the ownership or operation by
  DRHI or any DRHI Subsidiary of all or a material portion of the business or
  assets of the Surviving Corporation and its subsidiaries taken as a whole,
  or seeking to compel DRHI or any DRHI Subsidiary to dispose of or hold
  separate all or any material portion of the business or assets of the
  Surviving Corporation and its subsidiaries taken as a whole, as a result of
  the Merger or the transactions contemplated by this Agreement.
 
    8.1.3. HSR Act. The waiting period applicable to the consummation of the
  Merger under the HSR Act shall have expired or been terminated.
 
    8.1.4. Company Stockholder Approval. The holders of shares of the Company
  Common Stock shall have approved the adoption of this Agreement and any
  other matters submitted to them for the purpose of approving the
  transactions contemplated hereby.
 
    8.1.5. DRHI Stockholder Approval. The holders of shares of the DRHI
  Common Stock shall have approved the adoption of this Agreement and any
  other matters submitted to them for the purpose of approving the
  transactions contemplated hereby.
 
    8.1.6. Listing. The shares of the DRHI Common Stock to be issued in
  connection with the Merger shall have been listed on the NYSE, upon
  official notice of issuance.
 
    8.1.7. Registration Statement. The Registration Statement shall have been
  declared effective in accordance with the provisions of the Securities Act
  and Blue Sky Laws, if applicable, and no stop order with respect to the
  Registration Statement shall be in effect and no proceeding for that
  purpose shall have been instituted by the SEC or any state regulatory
  authorities.
 
    8.1.8. Consents. All consents, authorizations, orders and approvals of
  (or filings or registrations with) any governmental commission, board or
  other regulatory body, the absence of which would have a Material Adverse
  Effect on the Surviving Corporation, DRHI, any DRHI Subsidiary or any
  Company Subsidiary, shall have been obtained or made, except for filings in
  connection with the Merger and any other documents required to be filed
  after the Effective Time.
 
  8.2. Conditions to Obligations of DRHI. The obligations of DRHI to
consummate the Merger and the other transactions contemplated hereby shall be
subject to the satisfaction, at or prior to the Closing Date, of the following
additional conditions:
 
    (a) The representations and warranties of the Company contained herein
  (without regard to any materiality exceptions contained therein) shall be
  true at and as of the Closing Date with the same effect as if made at and
  as of the Closing Date (except to the extent such representation or
  warranty specifically related to an earlier date, in which case such
  representation or warranty shall be true as of such earlier date), except
  for such untruths or inaccuracies that would not, individually, or in the
  aggregate, have a Company Material Adverse Effect, and the Company shall
  have performed and complied in all material respects with all agreements
  and covenants set forth in this Agreement to be performed or complied with
  by it on or prior to the Closing Date.
 
    (b) DRHI shall have been furnished with a certificate, executed by a duly
  authorized officer of the Company, dated the Closing Date, certifying as to
  the fulfillment of the conditions in paragraph (a).
 
                                     A-32
<PAGE>
 
    (c) The Merger shall qualify for "pooling of interests" accounting
  treatment, and DRHI shall have received an update letter, dated the Closing
  Date, from Ernst & Young LLP to such effect with respect to DRHI if the
  Merger is consummated in accordance with the terms and provisions of this
  Agreement.
 
    (d) DRHI shall have received an opinion from Gibson, Dunn & Crutcher LLP,
  tax counsel to DRHI, to the effect that the Merger will constitute a tax-
  free reorganization (except with respect to cash received in lieu of
  fractional shares) within the meaning of Section 354(a)(1) and Section
  368(a) of the Code, which opinion may be based upon reasonable
  representations of fact provided by officers of DRHI and the Company.
 
  8.3. Conditions to Obligations of the Company. The obligations of the
Company to consummate the Merger and the other transactions contemplated
hereby shall be subject to the satisfaction, at or prior to the Closing Date,
of the following conditions:
 
    (a) The representations and warranties of DRHI contained herein (without
  regard to any materiality exceptions contained therein) shall be true at
  and as of the Closing Date with the same effect as if made at and as of the
  Closing Date (except to the extent such representation or warranty
  specifically relates to an earlier date, in which case such representation
  or warranty shall be true as of such earlier date), except for such
  untruths or inaccuracies that would not, individually or in the aggregate,
  have a DRHI Material Adverse Effect, and DRHI shall have performed and
  complied in all material respects with all agreements and covenants set
  forth in this Agreement to be performed or complied with by it on or prior
  to the Closing Date.
 
    (b) The Company shall have been furnished with a certificate, executed by
  duly authorized officer of DRHI, dated the Closing Date, certifying as to
  the fulfillment of the conditions in paragraph (a).
 
    (c) The Merger shall quality for "pooling of interests" accounting
  treatment, and the Company shall have received an update letter, dated the
  Closing Date, from Arthur Andersen LLP to such effect with respect to the
  Company if the Merger is consummated in accordance with the terms and
  provisions of this Agreement.
 
    (d) The Company shall have received an opinion from Cahill Gordon &
  Reindel, tax counsel to the Company, to the effect that the Merger will
  constitute a tax-free reorganization (except with respect to cash received
  in lieu of fractional shares) within the meaning of Section 354(a)(1) and
  Section 368(a) of the Code, which opinion may be based upon reasonable
  representations of fact provided by officers of DRHI and the Company.
 
                                  ARTICLE 9.
 
                              General Provisions
 
  9.1. Expenses.
 
  (a) Except as otherwise provided in this Section 9.1., all costs and
expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such expense, whether
or not the Merger is consummated.
 
  (b) In the event that this Agreement shall be terminated:
 
    (i) pursuant to Section 7.1.(d) or Section 7.1.(e);
 
    (ii) by DRHI pursuant to Section 7.1.(b)(iv) and within twelve months
  thereafter the Company enters into an agreement with respect to a Third
  Party Acquisition or a Third Party Acquisition occurs involving any party
  (or any affiliate thereof) (x) with whom the Company (or its agents) had
  negotiations with a view to a Third Party Acquisition, (y) to whom the
  Company (or its agents) furnished information with a view to a Third Party
  Acquisition or (z) who had submitted a proposal or expressed an interest in
  a Third Party Acquisition, in the case of each of clauses (x), (y) and (z),
  prior to such termination; or
 
                                     A-33
<PAGE>
 
  (iii) pursuant to Section 7.1.(b)(i) and at the time of the Company
  stockholders' meeting at which the Company failed to obtain the requisite
  vote there shall be outstanding an offer by a Third Party to consummate a
  Third Party Acquisition involving the payment of consideration to
  stockholders of the Company with a value in excess of the Merger
  Consideration and within twelve months thereafter the Company enters into
  an agreement with respect to such Third Party Acquisition or such Third
  Party Acquisition occurs);
 
the Company shall pay to DRHI the amount of $12,000,000 immediately upon the
occurrence of the event described in this Section 9.1.(b), less (in the case
of clause (iii) above) any amount theretofore paid pursuant to Section
9.1.(c).
 
  (c) In the event this Agreement shall be terminated by DRHI or (when a
proposal for a Third Party Acquisition is pending) the Company pursuant to
Section 7.1.(b)(i), and at the time of termination DRHI is not in breach of
its material obligations hereunder, the Company shall, promptly after the
termination of this Agreement, reimburse DRHI for all documented out-of-pocket
expenses and fees (including, without limitation, fees payable to all banks,
investment banking firms and other financial institutions, and their
respective agents and counsel, and all fees of counsel, accountants, financial
printers, experts and consultants to DRHI), whether incurred prior to, on or
after the date hereof, in connection with the Merger and the consummation of
all transactions contemplated by this Agreement; provided that in no event
shall the Company be required to pay in excess of an aggregate of $1,500,000
pursuant to this Section 9.1.(c).
 
  (d) In the event this Agreement shall be terminated by the Company pursuant
to Section 7.1.(b)(v), and at the time of termination the Company is not in
breach of its material obligations hereunder, DRHI shall, promptly after the
termination of this Agreement, reimburse the Company for all documented out-
of-pocket expenses and fees (including, without limitation, fees payable to
all banks, investment banking firms and other financial institutions, and
their respective agents and counsel, and all fees of counsel, accountants,
financial printers, experts and consultants to the Company), whether incurred
prior to, on or after the date hereof, in connection with the Merger and the
consummation of all transactions contemplated by this Agreement; provided that
in no event shall DRHI be required to pay in excess of an aggregate of
$1,500,000 pursuant to this Section 9.1.(d).
 
  9.2 Effectiveness of Representations, Warranties, Covenants and
Agreements. Except as otherwise provided in this Section 9.2., the
representations, warranties, covenants and agreements of each party hereto
shall remain operative and in full force and effect regardless of any
investigation made by or on behalf of any other party hereto, any person
controlling any such party or any of their officers or directors, whether
prior to or after the execution of this Agreement. The representations,
warranties, covenants and agreements in this Agreement shall terminate at the
Effective Time, except that (i) the agreements set forth in Article 2.,
Section 6.3. and Section 6.7. shall survive the Effective Time indefinitely,
and (ii) the agreements in Section 6.9., Section 6.10. and Section 6.14. shall
survive in accordance with their respective terms. The Confidentiality Letters
shall survive termination of this Agreement as provided therein.
 
  9.3. Notices. All notices and other communications given or made pursuant
hereto shall be in writing and shall be deemed to have been duly given or made
if and when delivered personally or by overnight courier to the parties at the
following addresses or sent by electronic transmission, with confirmation
received, to the telecopy numbers specified below (or at such other address or
telecopy number for a party as shall be specified by like notice):
 
  (a) If to DRHI:
 
      D. R. Horton, Inc.
      1901 Ascension Boulevard
      Suite 100
      Arlington, TX 76006
      Telecopier No.: (817) 856-8249
      Telephone No.: (817) 856-8200
      Attention: Chairman and Chief Executive Officer
 
                                     A-34
<PAGE>
 
  (b) If to the Company:
 
      Continental Homes Holdings Corp.
      7001 N. Scottsdale Road
      Suite 2050
      Scottsdale, AZ 85253
      Telecopier No.: (602) 483-8237
      Telephone No.: (602) 483-0006
      Attention: President and Chief Executive Officer
 
  9.4. Certain Definitions. For purposes of this Agreement, the term:
 
    (a) "affiliate" means a person that directly or indirectly, through one
  or more intermediaries, controls, is controlled by, or is under common
  control with, the first mentioned person; including, without limitation,
  any partnership, limited liability company or joint venture in which the
  first mentioned person (either alone, or through or together with any other
  subsidiary) has, directly or indirectly, an interest of 10% or more;
 
    (b) "beneficial owner" with respect to any shares means a person who
  shall be deemed to be the beneficial owner of such shares (i) which such
  person or any of its affiliates or associates (as such term is defined in
  Rule 12b-2 of the Exchange Act) beneficially owns, directly or indirectly,
  (ii) which such person or any of its affiliates or associates has, directly
  or indirectly, (A) the right to acquire (whether such right is exercisable
  immediately or subject only to the passage of time), pursuant to any
  agreement, arrangement or understanding or upon the exercise of
  consideration rights, exchange rights, warrants or options, or otherwise,
  or (B) the right to vote pursuant to any agreement, arrangement or
  understanding, or (iii) which are beneficially owned, directly or
  indirectly, by any other persons with whom such person or any of its
  affiliates or associates has any agreement, arrangement or understanding
  for the purpose of acquiring, holding, voting or disposing of any shares;
 
    (c) "business day" means any day other than a day on which banks in New
  York are required or authorized to be closed;
 
    (d) "control" (including the terms "controlled by" and "under common
  control with") means the possession, directly or indirectly or as trustee
  or executor, of the power to direct or cause the direction of the
  management or policies of a person, whether through the ownership of stock,
  as trustee or executor, by contract or credit arrangement or otherwise;
 
    (e) "material adverse effect" means when used in connection with the
  Company or any Company Subsidiary, or DRHI or any DRHI Subsidiary, as the
  case may be, any change, effect or circumstance that is materially adverse
  to the business, assets, financial condition, results of operations of the
  Company or any Company Subsidiary, or DRHI or any DRHI Subsidiary, as the
  case may be. "Material Adverse Effect" means any change, effect or
  circumstance that is materially adverse to the business, assets, financial
  condition or results of operations of the Company and the Company
  Subsidiaries, or DRHI and the DRHI Subsidiaries, as the case may be, in
  each case taken as a whole, other than any such changes, effects or
  circumstances: (i) set forth or contemplated by the Company Disclosure
  Schedule or the DRHI Disclosure Schedule, as the case may be; (ii) set
  forth or described in the Company SEC Reports or DRHI SEC Reports, as the
  case may be; or (iii) affecting the home construction industry generally;
 
    (f) "person" means an individual, corporation, partnership, limited
  liability company, association, trust, unincorporated organization, other
  entity or group (as defined in Section 13(d)(3) of the Exchange Act);
 
    (g) "subsidiary" or "subsidiaries" of the Company, the Surviving
  Corporation, DRHI or any other person means any corporation, partnership,
  joint venture, limited liability company, business trust or other legal
  entity of which the Company, the Surviving Corporation, DRHI or such other
  person, as the case may be (either alone or through or together with any
  other subsidiary), owns, directly or indirectly, more than
 
                                     A-35
<PAGE>
 
  50% of the stock or other equity interests the holders of which are
  generally entitled to vote for the election of the board of directors or
  other governing body of such corporation or other legal entity.
 
    (h) "trading day" means any day on which the NYSE is open for the trading
  of securities.
 
  9.5. Amendment. This Agreement may be amended by the parties hereto by
action taken by or on behalf of their respective Boards of Directors at any
time prior to the Effective Time; provided, however, that, after approval of
the Merger by the stockholders of the Company and DRHI, no amendment may be
made which by law requires further approval by such stockholders without such
further approval. This Agreement may not be amended except by an instrument in
writing signed by the parties hereto.
 
  9.6. Waiver. At any time prior to the Effective Time, any party hereto may
with respect to any other party hereto (a) extend the time for the performance
of any of the obligations or other acts, (b) waive any inaccuracies in the
representations and warranties contained herein or in any document delivered
pursuant hereto, or waive compliance with any of the agreements or conditions
contained herein. Any such extension or waiver shall be valid if set forth in
an instrument in writing signed by the party or parties to be bound thereby.
 
  9.7. Headings. The headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement.
 
  9.8. Severability. If any term or other provision of this Agreement is
invalid, illegal or incapable of being enforced by any rule of law, or public
policy, all other conditions and provisions of this Agreement shall
nevertheless remain in full force and effect so long as the economic or legal
substance of the transactions contemplated hereby is not affected in any
manner adverse to any party. Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the parties
hereto shall negotiate in good faith to modify this Agreement so as to effect
the original intent of the parties as closely as possible in an acceptable
manner to the end that transactions contemplated hereby are fulfilled to the
extent possible.
 
  9.9. Entire Agreement. This Agreement constitutes the entire agreement and
supersedes all prior agreements and undertakings (other than the
Confidentiality Letters), both written and oral, among the parties, or any of
them, with respect to the subject matter hereof.
 
  9.10. Assignment. This Agreement shall not be assigned by operation of law
or otherwise, except that DRHI may assign all or any of its rights hereunder
to any affiliate provided that no such assignment shall relieve the assigning
party of its obligations hereunder.
 
  9.11. Parties in Interest. This Agreement shall be binding upon and inure
solely to the benefit of each party hereto, and nothing in this Agreement,
express or implied, is intended to or shall confer upon any other person any
right, benefit or remedy of any nature whatsoever under or by reason of this
Agreement, including, without limitation, by way of subrogation, other than
Section 6.10. (which is intended to be for the benefit of the Indemnified
Parties and may be enforced by such Indemnified Parties).
 
  9.12. Failure or Indulgence Not Waiver; Remedies Cumulative. No failure or
delay on the part of any party hereto in the exercise of any right hereunder
shall impair such right or be construed to be a waiver of, or acquiescence in,
any breach of any representation, warranty or agreement herein, nor shall any
single or partial exercise of any such right preclude other or further
exercise thereof or of any other right. All rights and remedies existing under
this Agreement are cumulative to, and not exclusive of, any rights or remedies
otherwise available, except as otherwise provided herein.
 
  9.13. Governing Law. This Agreement shall be governed by, and construed in
accordance with, the internal laws of the State of Delaware applicable to
contracts executed and fully performed within the State of Delaware.
 
                                     A-36
<PAGE>
 
  9.14. Counterparts. This Agreement may be executed in one or more
counterparts, and by the different parties hereto in separate counterparts,
each of which when executed shall be deemed to be an original but all of which
taken together shall constitute one and the same agreement.
 
  IN WITNESS WHEREOF, DRHI and the Company have caused this Agreement to be
executed as of the date first written above by their respective officers
thereunto duly authorized.
 
                                          D. R. Horton, Inc.
 
                                                   
                                          By:    /s/ Donald R. Horton
                                             ----------------------------------
                                            Name: Donald R. Horton
                                            Title: Chief Executive Officer
 
                                          Continental Homes Holding Corp.
 
                                                   
                                          By:   /s/ W. Thomas Hickcox
                                             ----------------------------------
                                            Name: W. Thomas Hickcox
                                            Title: Chief Executive Officer
 
                                     A-37
<PAGE>
 
                                                                     APPENDIX B
 
                      [LETTERHEAD OF DONALDSON, LUFKIN &
                       JENRETTE SECURITIES CORPORATION]
                                                              December 18, 1997
 
Board of Directors
D.R. Horton, Inc.
1901 Ascension Blvd., Suite 100
Arlington, Texas 76006
 
Dear Members of the Board:
 
  You have requested our opinion as to the fairness from a financial point of
view to D.R. Horton, Inc. (the "Company") and its stockholders of the Exchange
Ratio (as defined below) to be paid by the Company pursuant to the terms of
the Agreement and Plan of Merger, to be dated as of December 18, 1997 (the
"Agreement"), by and between the Company and Continental Homes Holding Corp.
("Continental") pursuant to which Continental will be merged (the "Merger")
with and into the Company.
 
  Pursuant to the Agreement, each share of common stock, par value $0.01 per
share, of Continental ("Continental Common Stock") will be converted, subject
to certain exceptions, into the right to receive the number of shares of
common stock, $0.01 par value per share of the Company ("Company Common
Stock"), determined as follows: (i) if the Stock Value (as defined below) is
greater than or equal to $16.878 and less than or equal to $18.776, the
Exchange Ratio shall be 2.37; (ii) if the Stock Value is less than $16.878 and
greater than $14.50, the Exchange Ratio shall be the quotient of $40.00 and
the Stock Value; (iii) if the Stock Value is more than $18.776 and less than
$19.78, the Exchange Ratio shall be the quotient of $44.50 and the Stock
Value; (iv) if the Stock Value is less than or equal to $14.50, the Exchange
Ratio shall be 2.759; and (v) if the Stock Value is more than or equal to
$19.78, the Exchange Ratio shall be 2.25 (such number as determined pursuant
to clauses (i) through (v), the "Exchange Ratio"). The term "Stock Value"
means the average of the closing prices of Company Common Stock on the New
York Stock Exchange for 15 randomly selected trading days within the 30
consecutive trading days ending on the date that is five trading days prior to
the consummation of the Merger.
 
  In arriving at our opinion, we have reviewed the draft dated December 17,
1997 of the Agreement and its exhibits. We also have reviewed financial and
other information that was publicly available or furnished to us by the
Company and Continental including information provided during discussions with
their respective managements. Included in the information provided during
discussions with the respective managements were certain financial projections
of Continental for the period beginning fiscal year 1998 and ending fiscal
year 2001 prepared by the management of Continental and certain financial
projections of the Company for the period beginning fiscal year 1998 and
ending fiscal year 2000 prepared by the management of the Company. In
addition, we have compared certain financial and securities data of the
Company and Continental with various other companies whose securities are
traded in public markets, reviewed the historical stock prices and trading
volumes of Continental Common Stock and Company Common Stock, reviewed prices
and premiums paid in certain other business combinations and conducted such
other financial studies, analyses and investigations as we deemed appropriate
for purposes of this opinion.
 
  In rendering our opinion, we have relied upon and assumed the accuracy and
completeness of all of the financial and other information that was available
to us from public sources, that was provided to us by the Company and
Continental or its representatives, or that was otherwise reviewed by us. We
have also relied upon the estimates of the management of the Company of the
operating synergies achievable as a result of the Merger. With respect to the
financial projections supplied to us, we have assumed that they have been
reasonably prepared on the basis reflecting the best currently available
estimates and judgments of the management of the Company and Continental as to
the future operating and financial performance of the Company and Continental.
We have not assumed any responsibility for making any independent evaluation
of any assets or liabilities or for making any independent verification of any
of the information reviewed by us.
 
                                      B-1
<PAGE>
 
  Our opinion is necessarily based on economic, market, financial and other
conditions as they exist on, and on the information made available to us as
of, the date of this letter. It should be understood that, although subsequent
developments may affect this opinion, we do not have any obligation to update,
revise or reaffirm this opinion. We are expressing no opinion herein as to the
prices at which the Company Common Stock will actually trade at any time. Our
opinion does not address the relative merits of the Merger and the other
business strategies being considered by the Company's Board of Directors. Our
opinion does not constitute a recommendation to any stockholder of the Company
as to how such stockholder should vote on the proposed Merger.
 
  Donaldson, Lufkin & Jenrette Securities Corporation ("DLJ"), as part of its
investment banking services, is regularly engaged in the valuation of
businesses and securities in connection with mergers, acquisitions,
underwritings, sales and distributions of listed and unlisted securities,
private placements and valuations for corporate and other purposes. DLJ has
performed investment banking and other services for the Company in the past
and has been compensated for such services. DLJ was the sole manager for the
Company's June 1997 offering of $150.0 million of 8.375% Senior Notes. DLJ
also acted as a co-manager for the Company's March 1997 offering of Company
Common Stock.
 
  Based upon the foregoing and such other factors as we deem relevant, we are
of the opinion that the Exchange Ratio is fair to the Company and its
stockholders from a financial point of view.
 
                                          Very truly yours,
 
                                          Donaldson, Lufkin & Jenrette
                                          Securities Corporation
 
                                                    
                                          By:   /s/ Eric Anderson
                                             --------------------------------
                                            Name: Eric Anderson
                                            Title:  Managing Director
 
                                      B-2
<PAGE>
 
                                                                     APPENDIX C
 
                     [LETTERHEAD OF SALOMON SMITH BARNEY]
December 18, 1997
 
The Board of Directors
Continental Homes Holding Corp.
7001 North Scottsdale Road
Scottsdale, Arizona 85253
 
Members of the Board:
 
You have requested our opinion as to the fairness, from a financial point of
view, to the holders of the common stock of Continental Homes Holding Corp.
("Continental Homes") of the consideration to be received by such holders
pursuant to the terms and subject to the conditions set forth in the Agreement
and Plan of Merger, dated as of December 18, 1997 (the "Merger Agreement"), by
and between D.R. Horton, Inc. ("D.R. Horton") and Continental Homes. As more
fully described in the Merger Agreement, (A) Continental Homes will be merged
with and into D.R. Horton (the "Merger") and (B) each outstanding share of the
common stock, par value $0.01 per share, of Continental Homes (the "CH Common
Stock") will be converted into the right to receive (i) 2.37 shares of the
common stock, par value $0.01 per share, of D.R. Horton (the "DRH Common
Stock"), if the average of the closing prices of DRH Common Stock as reported
for New York Stock Exchange Composite Transactions for 15 randomly selected
trading days within the 30 consecutive trading days ending on the date that is
five trading days prior to the closing of the Merger (the "Stock Value") is
greater than or equal to $16.878 and less than or equal to $18.776, (ii) that
number of shares of DRH Common Stock equal to the result obtained by dividing
$40.00 by the Stock Value, if the Stock Value is less than $16.878 and greater
than $14.50, (iii) that number of shares of DRH Common Stock equal to the
result obtained by dividing $44.50 by the Stock Value, if the Stock Value is
greater than $18.776 and less than $19.78, (iv) either (x) 2.759 shares of DRH
Common Stock, if the Stock Value is less than or equal to $14.50, or (y) the
result obtained by dividing $35.00 by the Stock Value, if the Stock Value is
less than $12.69 and D.R. Horton so elects, or (v) 2.25 shares of DRH Common
Stock, if the Stock Value is greater than or equal to $19.78 (the number of
shares of DRH Common Stock into which shares of CH Common Stock will be so
converted, the "Exchange Ratio").
 
In arriving at our opinion, we reviewed the Merger Agreement and held
discussions with certain senior officers, directors and other representatives
and advisors of Continental Homes and certain senior officers and other
representatives and advisors of D.R. Horton concerning the businesses,
operations and prospects of Continental Homes and D.R. Horton. We examined
certain publicly available business and financial information relating to
Continental Homes and D.R. Horton as well as certain financial forecasts and
other information and data for Continental Homes and D.R. Horton which were
provided to or otherwise discussed with us by the respective managements of
Continental Homes and D.R. Horton, including information relating to certain
strategic implications and operational benefits anticipated to result from the
Merger. We reviewed the financial terms of the Merger as set forth in the
Merger Agreement in relation to, among other things: current and historical
market prices and trading volumes of CH Common Stock and DRH Common Stock; the
historical and projected earnings and other operating data of Continental
Homes and D.R. Horton; and the capitalization and financial condition of
Continental Homes and D.R. Horton. We considered, to the extent publicly
available, the financial terms of certain other transactions recently effected
which we considered relevant in evaluating the Merger and analyzed certain
financial, stock market and other publicly available information relating to
the businesses of other companies whose operations we considered relevant in
evaluating those of Continental Homes and D.R. Horton. We also evaluated the
potential pro forma financial impact of the Merger on D.R. Horton. In
connection with our engagement, we were requested to approach, and we held
discussions with, third parties to solicit indications of interest in the
possible acquisition of Continental Homes. In addition to the foregoing, we
conducted such other analyses and examinations and considered such other
financial, economic and market criteria as we deemed appropriate in arriving
at our opinion.
 
                                      C-1
<PAGE>
 
In rendering our opinion, we have assumed and relied, without independent
verification, upon the accuracy and completeness of all financial and other
information and data publicly available or furnished to or otherwise reviewed
by or discussed with us. With respect to financial forecasts and other
information and data provided to or otherwise reviewed by or discussed with
us, we have been advised by the managements of Continental Homes and D.R.
Horton that such forecasts and other information and data were reasonably
prepared on bases reflecting the best currently available estimates and
judgments of the managements of Continental Homes and D.R. Horton as to the
future financial performance of Continental Homes and D.R. Horton and the
strategic implications and operational benefits anticipated to result from the
Merger. We have assumed, with your consent, that the Merger will be treated as
a pooling of interests in accordance with generally accepted accounting
principles and as a tax-free reorganization for federal income tax purposes.
Our opinion, as set forth herein, relates to the relative values of
Continental Homes and D.R. Horton. We are not expressing any opinion as to
what the value of the DRH Common Stock actually will be when issued pursuant
to the Merger or the price at which the DRH Common Stock will trade subsequent
to the Merger. We have not made or been provided with an independent
evaluation or appraisal of the assets or liabilities (contingent or otherwise)
of Continental Homes or D.R. Horton nor have we made any physical inspection
of the properties or assets of Continental Homes or D.R. Horton. Our opinion
is necessarily based upon information available to us, and financial, stock
market and other conditions and circumstances existing and disclosed to us, as
of the date hereof.
 
Smith Barney Inc. (now associated with Salomon Brothers Inc and collectively
with Salomon Brothers Inc doing business as Salomon Smith Barney) has acted as
financial advisor to Continental Homes in connection with the proposed Merger
and will receive a fee for such services, a significant portion of which is
contingent upon the consummation of the Merger. We also will receive a fee in
connection with the delivery of this opinion. We have in the past provided
investment banking services to Continental Homes and D.R. Horton, for which
services we have received compensation. In the ordinary course of our
business, we and our affiliates may actively trade or hold the securities of
Continental Homes and D.R. Horton for our own account or for the account of
our customers and, accordingly, may at any time hold a long or short position
in such securities. In addition, we and our affiliates (including Travelers
Group Inc. and its affiliates) may maintain relationships with Continental
Homes and D.R. Horton.
 
Our advisory services and the opinion expressed herein are provided for the
information of the Board of Directors of Continental Homes in its evaluation
of the proposed Merger, and our opinion is not intended to be and does not
constitute a recommendation to any stockholder as to how such stockholder
should vote on the proposed Merger. Our opinion may not be published or
otherwise used or referred to, nor shall any public reference to Salomon Smith
Barney be made, without our prior written consent.
 
Based upon and subject to the foregoing, our experience as investment bankers,
our work as described above and other factors we deemed relevant, we are of
the opinion that, as of the date hereof, the Exchange Ratio is fair, from a
financial point of view, to the holders of CH Common Stock.
 
Very truly yours,
 
/s/ Salomon Smith Barney
- ------------------------------
SALOMON SMITH BARNEY

 
                                      C-2
<PAGE>
 
                                                                     APPENDIX D
 
              [LETTERHEAD OF MORGAN, STANLEY & CO. INCORPORATED]
 
                                                              December 18, 1997
 
Independent Members of the Board of Directors
C/O Bradley S. Anderson
Interim Chairman of the Board
Continental Homes Holding Corporation
7001 North Scottsdale Road, Suite 2050
Scottsdale, AZ 85253
 
  Independent Members of the Board of Directors:
   
  We understand that Continental Homes Holding Corporation ("Continental" or
the "Company") and D.R. Horton ("Horton") propose to enter into an Agreement
and Plan of Merger, substantially in the form of the draft dated December 18,
1997 (the "Merger Agreement"), which provides, among other things, for the
merger (the "Merger") of Continental with and into Horton. Pursuant to the
Merger, each outstanding share of common stock, par value $.01 per share, of
Continental (the "Company Common Stock"), other than shares held in treasury
or held by Horton or any affiliate of Horton, will be exchanged for 2.25
shares of Horton common stock, par value $.01 per share, of Horton (the
"Horton Common Stock"), subject to adjustment in certain circumstances
pursuant to a formula set forth in the Merger Agreement. The terms and
conditions of the Merger are more fully set forth in the Merger Agreement.
    
  The Independent Members of the Board of Directors (the "Independent
Members") have asked for our opinion as to whether the consideration to be
received by the holders of shares of Company Common Stock pursuant to the
Merger Agreement is fair from a financial point of view to such holders.
 
  For purposes of the opinion set forth herein, we have:
 
    (i) reviewed certain publicly available financial statements and other
  information of the Company and Horton;
 
    (ii) reviewed certain internal financial statements and other financial
  and operating data concerning the Company and Horton prepared by the
  managements of the Company and Horton;
 
    (iii) reviewed certain financial projections prepared by the managements
  of the Company and Horton;
 
    (iv) discussed the past and current operations and financial condition
  and the prospects of the Company and Horton with senior executives of the
  Company and Horton;
 
    (v) reviewed the reported prices and trading activity for the Company
  Common Stock and the Horton Common Stock;
 
    (vi) compared the financial performance of the Company and Horton and the
  prices and trading activity of the Company Common Stock and the Horton
  Common Stock with that of certain other comparable publicly-traded
  companies and their securities;
 
    (vii) reviewed the financial terms, to the extent publicly available, of
  certain comparable acquisition transactions;
 
    (viii) reviewed the Merger Agreement and certain related documents, and
 
    (ix) performed such other analysis and considered such other factors as
  we have considered appropriate.
 
  We have assumed and relied upon without independent verification the
accuracy and completeness of the information reviewed by us for the purposes
of this opinion. With respect to the financial projections, we have assumed
that they have been reasonably prepared on bases reflecting the best currently
available estimates and
 
                                      D-1
<PAGE>
 
judgments of the future financial performance of the Company and Horton. In
addition, we have assumed that the Merger will be consummated in accordance
with the terms set forth in the Merger Agreement, including, among other
things, that the Merger will be accounted for as a "pooling-of-interests"
business combination in accordance with U.S. Generally Accepted Accounting
Principles and the Merger will be treated as a tax-free reorganization and/or
exchange, each pursuant to the Internal Revenue Code of 1986. We have not made
any independent valuation or appraisal of the assets or liabilities of the
Company or Horton, nor have we been furnished with any such appraisals. Our
opinion is necessarily based on economic, market and other conditions as in
effect on, and the information made available to us as of, the date hereof.
 
  We understand that Salomon Smith Barney, financial advisor to the Company,
has conducted a sales process with respect to a possible sale or business
combination involving the Company, however, Morgan Stanley did not participate
in such process and was not authorized to solicit, and did not solicit,
interest from any party with respect to the acquisition of the Company or any
of its assets, nor did we negotiate with any of the parties in connection with
the Merger.
 
  We have been engaged to provide this opinion to the Independent Members in
connection with this transaction and will receive a fee for our services. In
the past, Morgan Stanley & Co. Incorporated and its affiliates have provided
financial advisory and financing services for the Company and have received
fees for the rendering of these services.
 
  It is understood that this letter is for the information of the Independent
Members and may not be used for any other purpose without our prior written
consent, except this opinion may be included in its entirety in any filing
with the Securities and Exchange Commission in connection with the Merger. In
addition, we express no opinion or recommendation as to how the holders of
Company Common Stock should vote at the stockholder's meeting held in
connection with the Merger.
 
  Based on the foregoing, we are of the opinion on the date hereof that the
consideration to be received by the holders of shares of Company Common Stock
pursuant to the Merger Agreement is fair from a financial point of view to
such holders.
 
                                          Very truly yours,
 
                                          Morgan Stanley & Co. Incorporated
 
                                                
                                          By:   /s/ Ronald D. Sturzenegger
                                             ----------------------------------
                                            Ronald D. Sturzenegger
                                            Principal
 
                                      D-2
<PAGE>
 
                                                                APPENDIX E
 
LOGO
 
                                     PROXY
 
                               D.R. HORTON, INC.
            1901 ASCENSION BLVD., SUITE 100, ARLINGTON, TEXAS 76006
 
          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
  The undersigned hereby nominates, constitutes and appoints Donald R. Horton
and David J. Keller, and each of them, attorneys, agents and proxies of the
undersigned, with full power of substitution to each and with the powers the
undersigned would possess if personally present to vote all shares of Common
Stock of D.R. Horton, Inc. (the "Company"), held of record by the undersigned
at the close of business on February 23, 1998, at the Special Meeting of
Stockholders to be held on April 10, 1998, in the principal executive offices
of the Company, 1901 Ascension Boulevard, Suite 100, Arlington, Texas 76006, or
any adjournments or postponements thereof, upon the matter set forth herein
and, in their discretion, upon all other matters which may come before or are
incident to the conduct of the meeting. Without otherwise limiting the general
authorization hereby given, said attorneys are instructed to vote as marked on
the matters set forth on the reverse side of this card.
 
                  PLEASE MARK, SIGN AND DATE ON REVERSE SIDE.
<PAGE>
 
 
 
       PLEASE MARK YOUR
A  [X] VOTES AS IN THIS
       EXAMPLE.
 
 
1. To adopt and approve the Agreement and Plan of Merger, dated as of December
   18, 1997, between the Company and Continental Homes Holding Corp., a Delaware
   corporation ("Continental"), providing for the merger of Continental with and
   into the Company, with the Company as the surviving corporation.


         [_]    FOR            [_]     AGAINST         [_]   ABSTAIN

 
THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR ITEM 1. THIS PROXY WHEN PROPERLY
EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY THE UNDERSIGNED
STOCKHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR ITEM 1.
 
   The undersigned hereby ratifies and confirms all that said attorneys and
proxies, or either of them, or their substitutes, shall lawfully do or cause to
be done by virtue hereof, and hereby revokes any and all proxies heretofore
given by the undersigned to vote at said meeting. The undersigned acknowledges
receipt of the notice of said special meeting and the proxy statement
accompanying said notice.

PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD PROMPTLY, USING THE ENCLOSED
ENVELOPE.
 
(Signature)                   (Signature)                    Dated:       , 1998
           -------------------           ------------------        -------

NOTE: Please sign exactly as names appear herein. When shares are held by joint
      tenants, both should sign. When signing as attorney, executor,
      administrator, trustee, or guardian, please give full titles as such. If
      a corporation, please sign in full corporate name by President or other
      authorized officer. If a partnership, please sign in partnership name by
      authorized person.



<PAGE>
 
 
LOGO
                                                                    
                                                                 APPENDIX F     
 
                        CONTINENTAL HOMES HOLDING CORP.
 
         7001 N. SCOTTSDALE ROAD, SUITE 2050, SCOTTSDALE, ARIZONA 85253
   
  This Proxy is solicited on behalf of the Board of Directors. The undersigned
hereby appoints Bradley S. Anderson and W. Thomas Hickcox, and each of them
severally with the power to appoint his substitute, as Proxies of the
undersigned with the powers the undersigned would possess if personally present
to vote all the shares of Common Stock of Continental Homes Holding Corp. (the
"Company") held of record by the undersigned on February 23, 1998, at the
Special Meeting of Stockholders to be held on April 10, 1998, at the Company's
executive offices located at 7001 N. Scottsdale Road, Suite 2050, Scottsdale,
Arizona 85253, and any adjournments or postponements thereof, upon the matter
set forth herein and, in their discretion, upon all other matters which may
come before or are incident to the conduct of the meeting. Without otherwise
limiting the general authorization hereby given, said Proxies are instructed to
vote as follows on the matters set forth below:     
 
           THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL ONE.
 
  (1) To adopt and approve the Agreement and Plan of Merger, dated as of
December 18, 1997, between the Company and D.R. Horton, Inc., a Delaware
corporation ("Horton"), providing for the merger of the Company with and into
Horton, with Horton as the surviving corporation.
 
            [_] FOR       [_] AGAINST       [_] ABSTAIN
 
<PAGE>
 
 
LOGO
 
  This proxy when properly executed will be voted in the manner directed by the
undersigned stockholder. If no direction is made, this proxy will be voted FOR
Proposal (1).
 
                                    Please sign exactly as name appears below.
                                    When Shares are held by joint tenants,
                                    both should sign. When signing as
                                    attorney, executor, administrator, trustee
                                    or guardian, please sign your name and
                                    indicate full title as such. If a
                                    corporation, an authorized officer should
                                    sign his name and indicate his title. If a
                                    partnership, please sign in partnership
                                    name by authorized person.
 
                                    Dated: 
                                          ------------------------------------
 
                                    Receipt of Notice of Meeting and Proxy
                                    Statement is hereby acknowledged.
 

                                    ------------------------------------------
                                                     SIGNATURE
 

                                    ------------------------------------------
                                             SIGNATURE IF HELD JOINTLY
 
              PLEASE SIGN, DATE AND MAIL IN THE ENCLOSED ENVELOPE.
 
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  The Registrant's Amended and Restated Certificate of Incorporation, as
amended, provides that the Registrant shall, to the full extent permitted by
the General Corporation Law of the State of Delaware (the "DGCL") or other
applicable laws presently or hereafter in effect, indemnify each person who is
or was or who had agreed to become a director or officer of the Registrant, or
each such person who is or was serving or who had agreed to serve at the
written request of the Board of Directors or an officer of the Registrant as
an employee or agent of the Registrant or as a director, officer, employee or
agent of another corporation, partnership, joint venture, trust or other
enterprise, in any such case owned or controlled by the Registrant, including
the heirs, executors, administrators or estate of such person, and eliminates
the personal liability of its directors to the full extent permitted by the
DGCL or other applicable laws presently or hereafter in effect. The Registrant
has entered into an indemnification agreement with each of its directors.
 
  Section 145 of the DGCL permits a corporation to indemnify its directors and
officers against expenses (including attorney's fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by them in
connection with any action, suit or proceeding brought by third parties, if
such directors or officers acted in good faith and in a manner they reasonably
believed to be in or not opposed to the best interests of the corporation and,
with respect to any criminal action or proceeding, had no reasonable cause to
believe their conduct was unlawful. In a derivative action, i.e., one by or in
the right of the corporation, indemnification may be made only for expenses
actually and reasonably incurred by directors and officers in connection with
the defense or settlement of an action or suit, and only with respect to a
matter as to which they shall have acted in good faith and in a manner they
reasonably believed to be or not opposed to the best interests of the
corporation, except that no indemnification shall be made if such person shall
have been adjudged liable for negligence or misconduct in the performance of
his respective duties to the corporation, although the court in which the
action or suit was brought may determine upon application that the defendant
officers or directors are fairly and reasonably entitled to indemnity for such
expenses despite such adjudication of liability.
 
  Section 102(b)(7) of DGCL provides that a corporation may eliminate or limit
the personal liability of a director to the corporation or its stockholders
for monetary damages for breach of fiduciary duty as a director, provided that
such provisions shall not eliminate or limit the liability of a director (i)
for any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) under Section 174
of the DGCL, or (iv) for any transaction from which the director derived an
improper personal benefit. No such provision shall eliminate or limit the
liability of a director for any act or omission occurring prior to the date
when such provision becomes effective.
 
  The Registrant also has obtained Directors and Officers Liability Insurance
that provides insurance coverage for certain liabilities which may be incurred
by the Registrant's directors and officers in their capacity as such.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
  (A) EXHIBITS:
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                EXHIBITS
 -------                               --------
 <C>     <S>
   2.1   Agreement and Plan of Merger, dated as of December 18, 1997, by and
         between D.R. Horton, Inc. and Continental Homes Holding Corp.
         (included in Joint Proxy Statement/Prospectus as Appendix A). The
         Registrant agrees to furnish supplementally a copy of omitted
         schedules to the Commission upon request.
   3.1   Amended and Restated Certificate of Incorporation, as amended(1)
</TABLE>
 
                                     II-1
<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                                 EXHIBITS
 -------                                --------
 <C>     <S>
    3.2  Amended and Restated Bylaws(2)
    4.1  See Exhibits 3.1 and 3.2
    4.2  Indenture, dated as of June 9, 1997, among Horton., the Guarantors
          named therein and American Stock Transfer & Trust Company, as
          Trustee(3)
    4.3  First Supplemental Indenture, dated as of June 9, 1997, among Horton,
          the Guarantors named therein and American Stock Transfer & Trust
          Company, as Trustee(4)
    4.4  Second Supplemental Indenture, dated as of September 30, 1997, among
          Horton, the Guarantors named therein and American Stock Transfer &
          Trust Company, as Trustee(7)
    5.1  Opinion of Gibson, Dunn & Crutcher LLP
   *8.1  Tax Opinion of Gibson, Dunn & Crutcher LLP
   *8.2  Tax Opinion of Cahill Gordon & Reindel
   10.1  First Amended and Restated Master Loan and Inter-Creditor Agreement,
          dated as of December 19, 1997, among D.R. Horton, Inc., as Borrower,
          NationsBank, N.A., Bank of America National Trust and Savings
          Association, Fleet National Bank, Bank United, Comerica Bank, The
          First National Bank of Chicago, Credit Lyonnais New York Branch, PNC
          Bank, National Association, Amsouth Bank of Alabama, Bank One,
          Arizona, NA, Societe Generale, Southwest Agency, First American Bank
          Texas, SSB, Harris Trust and Savings Bank, and Sanwa Bank California
          as Banks, and NationsBank, N.A., as Administrative Agent(6).
   10.2  Restated Working Capital Line of Credit Agreement dated as of July 15,
          1997, by and between D.R. Horton, Inc., as Borrower, and Barnett
          Bank, N.A., as Lender(5)
   10.3  Noncompetition Agreement (Amendment No. 1 to Employment Agreement),
          dated as of December 18, 1997, by and between W. Thomas Hickcox and
          Continental Homes Holding Corp.
   10.4  Noncompetition Agreement (Amendment No. 1 to Employment Agreement),
          dated as of December 18, 1997, by and between Bruce F. Dickson and
          Continental Homes Holding Corp.
   11.1  Statement re computation of per share earnings.
  *12.1  Computations of ratio of earnings to fixed charges for D.R. Horton,
          Inc., Continental Homes Holding Corp. and the combined company.
  *23.1  Consent of Ernst & Young LLP
  *23.2  Consent of Arthur Andersen LLP
  *23.3  Consent of Whittington, McLemore, Land, Davis & White
  *23.4  Consent of Gibson, Dunn & Crutcher LLP (included in Exhibits 5.1 and
          8.1)
  *23.5  Consent of Cahill Gordon & Reindel (included in Exhibit 8.2)
   24.1  Powers of Attorney (included in Part II of the Registration
          Statement).
  *99.1  Consent of Donaldson, Lufkin & Jenrette Securities Corporation
  *99.2  Consent of Salomon Smith Barney
  *99.3  Consent of Morgan Stanley & Co. Incorporated
</TABLE>    
- --------
 * Filed herewith
(1) Incorporated by reference from Exhibit 3.1 to the Registrant's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1995, filed
    with the Commission on November 22, 1995.
(2) Incorporated by reference from Exhibit 3.1 to the Registrant's Quarterly
    Report on Form 10-Q for the quarter ended March 31, 1997, filed with the
    Commission on May 14, 1997.
(3) Incorporated by reference from Exhibit 4.1(a) to the Registrant's
    Registration Statement on Form S-3 (No. 333-27521), filed with the
    Commission on May 21, 1997.
(4) Incorporated by reference from Exhibit 4.1 to the Registrant's Form 8-
    K/dated April 1, 1997, filed with the Commission on June 9, 1997.
(5) Incorporated by reference to Exhibit 10.18 to the Registrant's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1997, filed
    with the Commission on December 8, 1997.
   
(6) Incorporated herein by reference from Exhibit 10.1 to the Registrant's
    Quarterly Report on Form 10-Q for the quarter ended December 31, 1997,
    filed with the Commission on January 27, 1998.     
(7) Incorporated by reference to Exhibit 4.4 to the Registrant's Annual Report
    on Form 10-K for the fiscal year ended September 30, 1997, filed with the
    Commission on December 8, 1997.
 
                                     II-2
<PAGE>
 
ITEM 22. UNDERTAKINGS.
 
  (a) The undersigned Registrant hereby undertakes:
 
    (1) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this Registration Statement:
 
  (i) To include any prospectus required by section 10(a)(3) of the
  Securities Act of 1933;
 
  (ii) To reflect in the prospectus any facts or events arising after the
  effective date of the Registration Statement (or the most recent post-
  effective amendment thereof) which, individually or in the aggregate,
  represent a fundamental change in the information set forth in the
  registration statement. Notwithstanding the foregoing, any increase or
  decrease in volume of securities offered (if the total dollar value of
  securities offered would not exceed that which was registered) and any
  deviation from the low or high end of the estimated maximum offering range
  may be reflected in the form of prospectus filed with the Commission
  pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
  price represent no more than a 20% change in the maximum aggregate offering
  price set forth in the "Calculation of Registration Fee" table in the
  effective Registration Statement.
 
  (iii) To include any material information with respect to the plan of
  distribution not previously disclosed in the Registration Statement or any
  material change to such information in the Registration Statement.
 
    (2) That, for the purpose of determining any liability under the
  Securities Act of 1933, each such post-effective amendment shall be deemed
  to be a new Registration Statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
  (b) The Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act of 1933, each filing of the Registrant's
annual report pursuant to Section 13(a) or Section 15(d) of the Securities
Exchange Act of 1934 (and, where applicable, each filing of an employee
benefit plan's annual report pursuant to Section 15(d) of the Securities Act
of 1934) that is incorporated by reference in the Registration Statement shall
be deemed to be a new Registration Statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.
 
  (c) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission, such indemnification is against public policy as expressed in the
Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officers or controlling person in
connection with the securities being registered, the Registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the Act
and will be governed by the final adjudication of such issue.
 
  (d)(1) The undersigned Registrant hereby undertakes as follows: that prior
to any public reoffering of the securities registered hereunder through use of
a prospectus which is a part of the Registration Statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c),
the issuer undertakes that such reoffering prospectus will contain the
information called for by the applicable registration form with respect to
reofferings by persons who may be deemed underwriters, in addition to the
information called for by the other items of the applicable form.
 
 
                                     II-3
<PAGE>
 
  (2) The undersigned Registrant undertakes that every prospectus: (i) that is
filed pursuant to paragraph (1) immediately preceding, or (ii) that purports
to meet the requirements of Section 10(a)(3) of the Act and is used in
connection with an offering of securities subject to Rule 415, will be filed
as a part of an amendment to the registration statement and will not be used
until such amendment is effective, and that, for purposes of determining any
liability under the Securities Act of 1933, as amended, each such post-
effective amendment shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  (e) The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Items 4, 10(b), 11 or 13 of this Form within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of the Registration Statement through
the date of responding to the request.
 
  (f) The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the Registration Statement when it became effective.
 
                                     II-4
<PAGE>
 
                       SIGNATURES AND POWERS OF ATTORNEY
   
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
HAS DULY CAUSED THIS AMENDMENT NO. 2 TO ITS REGISTRATION STATEMENT TO BE
SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED, IN THE
CITY OF ARLINGTON, STATE OF TEXAS, ON MARCH 9, 1998.     
 
                                          D.R. Horton, Inc
 
                                                   
                                          By:      /s/ Donald R. Horton
                                             ---------------------------------
                                             Donald R. Horton Chairman of the
                                             Board and President
   
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS AMENDMENT
NO. 2 TO THIS REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS
IN THE CAPACITIES AND ON THE DATES INDICATED.     
 
<TABLE>    

      SIGNATURE                        TITLE                 DATE

<S>                                    <C>                      <C> 
        /s/ Donald R. Horton           Chairman of the          March 9, 1998
- -------------------------------------   Board and President     
          DONALD R. HORTON              (Principal                   
                                        Executive Officer)
 
        /s/ Richard Beckwitt           Director                 March 9, 1998
- -------------------------------------                           
          RICHARD BECKWITT                                           
 
                  *                    Director                 March 9, 1998
- -------------------------------------                           
         RICHARD I. GALLAND                                          
 
                  *                    Director                 March 9, 1998
- -------------------------------------                           
          RICHARD L. HORTON                                          
 
                                       Director                 March 9, 1998
               *                                                
- -------------------------------------                                
          TERRILL J. HORTON
 
         /s/ David J. Keller           Treasurer, Chief         March 9, 1998
- -------------------------------------   Financial Officer       
           DAVID J. KELLER              and Director                 
                                        (Principal
                                        Accounting and
                                        Financial Officer)
 
                  *                    Director                 March 9, 1998
- -------------------------------------                           
          FRANCINE I. NEFF                                           
 
                  *                    Director                 March 9, 1998
- -------------------------------------                           
           SCOTT J. STONE                                            
 
        /s/ Donald J. Tomnitz          Director                 March 9, 1998
- -------------------------------------                           
          DONALD J. TOMNITZ                                          

* BY:  /s/ DONALD R. HORTON
     --------------------------------
          DONALD R. HORTON
         ATTORNEY-IN-FACT**
 
</TABLE>     
** BY AUTHORITY OF POWER OF ATTORNEY FILED WITH THIS REGISTRATION STATEMENT.
 
                                     II-5
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                                 EXHIBITS
 -------                                --------
 <C>     <S>
    2.1  Agreement and Plan of Merger, dated as of December 18, 1997, by and
          between D.R. Horton, Inc. and Continental Homes Holding Corp.
          (included in Joint Proxy Statement/Prospectus as Appendix A). The
          Registrant agrees to furnish supplementally a copy of omitted
          schedules to the Commission upon request.
    3.1  Amended and Restated Certificate of Incorporation, as amended(1)
    3.2  Amended and Restated Bylaws(2)
    4.1  See Exhibits 3.1 and 3.2
    4.2  Indenture, dated as of June 9, 1997, among Horton., the Guarantors
          named therein and American Stock Transfer & Trust Company, as
          Trustee(3)
    4.3  First Supplemental Indenture, dated as of June 9, 1997, among Horton,
          the Guarantors named therein and American Stock Transfer & Trust
          Company, as Trustee(4)
    4.4  Second Supplemental Indenture, dated as of September 30, 1997, among
          Horton, the Guarantors named therein and American Stock Transfer &
          Trust Company, as Trustee(7)
    5.1  Opinion of Gibson, Dunn & Crutcher LLP
   *8.1  Tax Opinion of Gibson, Dunn & Crutcher LLP
   *8.2  Tax Opinion of Cahill Gordon & Reindel
   10.1  First Amended and Restated Master Loan and Inter-Creditor Agreement,
          dated as of december 19, 1997, among D.R. Horton, Inc., as Borrower,
          NationsBank, N.A., Bank of America National Trust and Savings
          Association, Fleet National Bank, Bank United, Comerica Bank, The
          First National Bank of Chicago, Credit Lyonnais New York Branch, PNC
          Bank, National Association, Amsouth Bank of Alabama, Bank One,
          Arizona, NA, Societe Generale, Southwest Agency, First American Bank
          Texas, SSB, Harris Trust and Savings Bank, and Sanwa Bank California
          as Banks, and NationsBank, N.A., as Administrative Agent(6).
   10.2  Restated Working Capital Line of Credit Agreement dated as of July 15,
          1997, by and between D.R. Horton, Inc., as Borrower, and Barnett
          Bank, N.A., as Lender(5)
   10.3  Noncompetition Agreement (Amendment No. 1 to Employment Agreement),
          dated as of December 18, 1997, by and between W. Thomas Hickcox and
          Continental Homes Holding Corp.
   10.4  Noncompetition Agreement (Amendment No. 1 to Employment Agreement),
          dated as of December 18, 1997, by and between Bruce F. Dickson and
          Continental Homes Holding Corp.
   11.1  Statement re computation of per share earnings.
  *12.1  Computations of ratio of earnings to fixed charges for D.R. Horton,
          Inc., Continental Homes Holding Corp. and the combined company.
  *23.1  Consent of Ernst & Young LLP
  *23.2  Consent of Arthur Andersen LLP
  *23.3  Consent of Whittington, McLemore, Land, Davis & White
  *23.4  Consent of Gibson, Dunn & Crutcher LLP (included in Exhibits 5.1 and
          8.1)
  *23.5  Consent of Cahill Gordon & Reindel (included in Exhibit 8.2)
   24.1  Powers of Attorney (included in Part II of the Registration
          Statement).
  *99.1  Consent of Donaldson, Lufkin & Jenrette Securities Corporation
  *99.2  Consent of Salomon Smith Barney
  *99.3  Consent of Morgan Stanley & Co. Incorporated
</TABLE>    
- --------
 * Filed herewith
(1) Incorporated by reference from Exhibit 3.1 to the Registrant's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1995, filed
    with the Commission on November 22, 1995.
(2) Incorporated by reference from Exhibit 3.1 to the Registrant's Quarterly
    Report on Form 10-Q for the quarter ended March 31, 1997, filed with the
    Commission on May 14, 1997.
(3) Incorporated by reference from Exhibit 4.1(a) to the Registrant's
    Registration Statement on Form S-3 (No. 333-27521), filed with the
    Commission on May 21, 1997.
(4) Incorporated by reference from Exhibit 4.1 to the Registrant's Form 8-K/A
    dated April 1, 1997, filed with the Commission on June 9, 1997.
<PAGE>
 
(5) Incorporated by reference to Exhibit 10.18 to the Registrant's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1997, filed
    with the Commission on December 8, 1997.
   
(6) Incorporated herein by reference from Exhibit 10.1 to the Registrant's
    Quarterly Report on Form 10-Q for the quarter ended December 31, 1997,
    filed with the Commission on January 27, 1998.     
(7) Incorporated by reference to Exhibit 4.4 to the Registrant's Annual Report
    on Form 10-K for the fiscal year ended September 30, 1997, filed with the
    Commission on December 8, 1997.
 
                                       2

<PAGE>
 
                                                                     EXHIBIT 8.1


           [LETTERHEAD OF GIBSON, DUNN & CRUTCHER LLP APPEARS HERE]

                              February 23, 1998


D.R. Horton, Inc.
1901 Ascension Boulevard
Suite 100
Arlington, Texas 76006

           Re:   Amendment No. 1 on Form S-4 to the Registration Statement of
                 D.R. Horton, Inc.
               

Ladies and Gentlemen:

     You have requested our opinion regarding certain federal income tax 
consequences of the proposed merger (the "Merger") of Continental Homes Holding 
Corp., a Delaware corporation (the "Company"), with and into D.R. Horton, Inc.,
a Delaware corporation ("Horton"). The Merger will be effected pursuant to the
terms and conditions of the Agreement and Plan of Merger, dated as of December
18, 1997, between Horton and the Company (the "Merger Agreement"). The Merger
Agreement is attached as Appendix A to Amendment No. 1 on Form S-4 to the
Registration Statement of D.R. Horton, Inc. (File No. 333-44279), filed on
February 23, 1998, with the Securities and Exchange Commission in connection
with the Merger (the "Amended Registration Statement"). Defined terms used and
not otherwise defined herein have the meanings ascribed to them in the Merger
Agreement.

     In formulating our opinion, we have examined the Merger Agreement, the 
Joint Proxy Statement/Prospectus of Horton and the Company that is included in
the Amended Registration Statement (the "Prospectus"), and such other documents
as we deemed necessary or appropriate, and have, with your permission, relied
upon, and assumed as correct now and as of the Effective Time, (i) the accuracy
of the statements and facts concerning the Merger set forth in the Merger
Agreement and the Prospectus, (ii) that the Merger will be consummated in the
manner contemplated by, and in accordance with the terms set forth in the Merger
Agreement and the Prospectus, and (iii) the accuracy of (a) the representations
made to us by Horton, which are set forth in an officer's certificate delivered
to us by Horton, dated February 23, 1998; and (b) the representations made to
us by the Company, which are set forth in an officer's certificate delivered to
us by the Company, dated February 23, 1998.



<PAGE>
 
                                                                     EXHIBIT 8.2

                    [LETTERHEAD OF CAHILL GORDON & REINDEL]


                               February 23, 1998

Continental Homes Holding Corp.
7001 N. Scottsdale Road
Suite 2050
Scottsdale, Arizona  85253

Ladies and Gentlemen:

     We have acted as counsel to Continental Homes Holding Corp., a Delaware 
corporation (the "Company"), in connection with the proposed merger (the 
"Merger") of the Company with and into D.R. Horton, Inc. a Delaware corporation
("Horton"), pursuant to the Agreement and Plan of Merger between the Company and
Horton, dated as of December 18, 1997 (the "Merger Agreement"). Any capitalized
terms not otherwise defined herein shall have the meanings ascribed to them in
the Merger Agreement or, if not defined therein, in the Joint Proxy
Statement/Prospectus (the "Proxy Statement/Prospectus") that is included in
Amendment No. 1 to the Registration Statement on Form S-4 (the "Amended
Registration Statement"), Registration No. 333-44279, covering the registration
of DRHI Common Stock under the Securities Act of 1933, as amended (the "Act"),
as filed by Horton with the Securities and Exchange Commission on February 23,
1998.

<PAGE>
 
                                                                    EXHIBIT 12.1
 
             D.R. HORTON, INC. AND CONTINENTAL HOMES HOLDING CORP.
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                             (DOLLARS IN THOUSANDS)
 
<TABLE>   
<CAPTION>
                                                                          FOR THE THREE
                                      FOR THE FISCAL YEARS                MONTHS ENDED
                                       ENDED SEPTEMBER 30,                DECEMBER 31,
                         ----------------------------------------------- ---------------
                          1993    1994    1995     1996        1997       1996    1997
                         ------- ------- ------- -------- -------------- ------- -------
HORTON
<S>                      <C>     <C>     <C>     <C>      <C>            <C>     <C>
Consolidated pretax
 income from continuing
 operations............. $13,917 $28,591 $32,557 $ 44,432    $ 59,894    $11,159 $17,794
Amortization of
 capitalized interest...   1,505   4,525   8,047    9,437      11,889      2,057   3,850
Interest expensed.......     --      --    1,161    1,474       5,150        784   1,169
                         ------- ------- ------- --------    --------    ------- -------
  Earnings.............. $15,422 $33,116 $41,765 $ 55,343    $ 76,933    $14,000 $22,813
                         ======= ======= ======= ========    ========    ======= =======
Interest incurred....... $ 2,451 $ 7,269 $12,002 $ 14,835    $ 23,992    $ 3,872 $ 8,292
                         ------- ------- ------- --------    --------    ------- -------
  Fixed charges......... $ 2,451 $ 7,269 $12,002 $ 14,835    $ 23,992    $ 3,872 $ 8,292
                         ======= ======= ======= ========    ========    ======= =======
Ratio of earnings to
 fixed charges..........     6.3     4.6     3.5      3.7         3.2        3.6     2.8
                         ======= ======= ======= ========    ========    ======= =======
<CAPTION>
                                                                           FOR THE SIX
                                      FOR THE FISCAL YEARS                MONTHS ENDED
                                          ENDED MAY 31,                   NOVEMBER 30,
                         ----------------------------------------------- ---------------
                          1993    1994    1995     1996        1997       1996    1997
                         ------- ------- ------- -------- -------------- ------- -------
CONTINENTAL
<S>                      <C>     <C>     <C>     <C>      <C>            <C>     <C>
Consolidated pretax
 income from continuing
 operations............. $12,083 $23,137 $25,465 $ 45,382    $ 49,751    $28,548 $26,283
Amortization of
 capitalized interest...   6,236   7,734  10,687   16,233      17,488      8,892   8,838
Interest expensed.......   7,349   7,431   7,780    7,767       6,031      3,006   2,970
                         ------- ------- ------- --------    --------    ------- -------
  Earnings.............. $25,668 $38,302 $43,932 $ 69,382    $ 73,270    $40,446 $38,091
                         ======= ======= ======= ========    ========    ======= =======
Interest incurred....... $13,383 $16,085 $21,888 $ 24,207    $ 26,210    $12,406 $14,108
                         ------- ------- ------- --------    --------    ------- -------
  Fixed charges......... $13,383 $16,085 $21,888 $ 24,207    $ 26,210    $12,406 $14,108
                         ======= ======= ======= ========    ========    ======= =======
Ratio of earnings to
 fixed charges..........     1.9     2.4     2.0      2.9         2.8        3.3     2.7
                         ======= ======= ======= ========    ========    ======= =======
<CAPTION>
                                                                          FOR THE THREE
                                 FOR THE FISCAL           FOR THE TWELVE  MONTHS ENDED
                           PERIODS ENDED SEPTEMBER 30,     MONTHS ENDED   DECEMBER 31,
                         -------------------------------- SEPTEMBER 30,  ---------------
                          1993    1994    1995     1996        1997       1996    1997
                         ------- ------- ------- -------- -------------- ------- -------
COMBINED
<S>                      <C>     <C>     <C>     <C>      <C>            <C>     <C>
Consolidated pretax
 income from continuing
 operations............. $26,000 $51,728 $58,022 $ 89,814    $109,566    $27,073 $30,418
Amortization of
 capitalized interest...   7,741  12,259  18,734   25,670      30,348      7,341   8,236
Interest expensed.......   7,349   7,431   8,941    9,241      11,092      2,555   2,792
                         ------- ------- ------- --------    --------    ------- -------
  Earnings.............. $41,090 $71,418 $85,697 $124,725    $151,006    $36,969 $41,446
                         ======= ======= ======= ========    ========    ======= =======
Interest incurred....... $15,834 $23,354 $33,890 $ 39,042    $ 53,522    $12,242 $15,366
                         ------- ------- ------- --------    --------    ------- -------
  Fixed charges......... $15,834 $23,354 $33,890 $ 39,042    $ 53,522    $12,242 $15,366
                         ======= ======= ======= ========    ========    ======= =======
Ratio of earnings to
 fixed charges..........     2.6     3.1     2.5      3.2         2.8        3.0     2.7
                         ======= ======= ======= ========    ========    ======= =======
</TABLE>    

<PAGE>
 
                                                                   EXHIBIT 23.1
 
                        CONSENT OF INDEPENDENT AUDITORS
   
  We consent to the reference to our firm under the caption "Experts" in
Amendment No. 2 to the Registration Statement (Form S-4 No. 333-44279) and
related Prospectus of D.R. Horton, Inc. for the registration of shares of its
common stock and to the incorporation by reference therein of our report dated
November 7, 1997, with respect to the consolidated financial statements of
D.R. Horton, Inc. included in its Annual Report (Form 10-K) for the year ended
September 30, 1997, filed with the Securities and Exchange Commission.     
 
                                          /s/ Ernst & Young LLP
 
Fort Worth, Texas
   
March 7, 1998     

<PAGE>
 
                                                                   EXHIBIT 23.2
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
  As independent public accountants, we hereby consent to the incorporation by
reference in this Registration Statement on Form S-4 of our report dated June
18, 1997, included in Continental Homes Holding Corp.'s Form 10-K for the year
ended May 31, 1997 and to all references to our Firm included in this
Registration Statement.
 
                                          /s/ Arthur Andersen LLP
 
Phoenix, Arizona
   
March 6, 1998     

<PAGE>
 
                                                                   EXHIBIT 23.3
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
   
  We consent to the use of our report dated February 7, 1997, with respect to
the combined financial statements as of and for the year ended December 31,
1996, of S.G. Torrey, Atlanta, Ltd. and Affiliates, included by reference in
D.R. Horton, Inc.'s Form S-4, dated March 9, 1998, filed with the Securities
and Exchange Commission.     
 
 
                                            /s/ Whittington, McLemore, Land,
                                             Davis, White & Givens, C.P.A.'s,
                                                           P.C.
                                          -------------------------------------
                                          Whittington, McLemore, Land, Davis,
                                          White & Givens, C.P.A.'s, P.C.
   
Rome, Georgia     
   
March 6, 1998     

<PAGE>
 
                                                                 
                                                              EXHIBIT 99.1     
         
      CONSENT OF DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION     
 
  We hereby consent to (i) the inclusion of our opinion letter, dated December
18, 1997, to the Board of Directors of D.R. Horton, Inc. (the "Company") as
Appendix B to the Joint Proxy Statement/Prospectus of the Company relating to
the proposed acquisition by merger of Continental Homes Holdings Corp.
("Continental") by the Company and (ii) all references to Donaldson, Lufkin &
Jenrette Securities Corporation in the sections captioned "Summary,"
"Background of the Merger," "Recommendation of the Horton Board; Horton's
Reasons for the Merger," and "Opinion of Horton's Financial Advisor," of the
Joint Proxy Statement/Prospectus of the Company and Continental which forms a
part of this Registration Statement on Form S-4. In giving such consent, we do
not admit that we come within the category of persons whose consent is
required under, and we do not admit that we are "experts" for purposes of, the
Securities Act of 1933, as amended, and the rules and regulations promulgated
thereunder.
 
                                          Donaldson, Lufkin & Jenrette
                                           Securities Corporation
 
                                                    /s/ Eric Anderson
                                            -----------------------------------
                                          By:
                                            Name: Eric Anderson
                                            Title: Managing Director
 
 
New York, New York
   
March 9, 1998     

<PAGE>
 
                                                                 
                                                              EXHIBIT 99.2     
 
                     [LETTERHEAD OF SALOMON SMITH BARNEY]
 
The Board of Directors Continental Homes Holding Corp. 7001 North Scottsdale
Road Scottsdale, Arizona 85253
 
Members of the Board:
 
  We hereby consent to the inclusion of our opinion letter to the Board of
Directors of Continental Homes Holding Corp. ("Continental Homes") as Appendix
C to the Joint Proxy Statement/Prospectus of Continental Homes and D.R.
Horton, Inc. ("D.R. Horton") relating to the proposed merger transaction
involving Continental Homes and D.R. Horton and references thereto in such
Joint Proxy Statement/Prospectus under the captions "SUMMARY--Opinions of
Financial Advisors to Continental and the Independent Directors" and "THE
MERGER--Opinion of Continental's Financial Advisors." In giving such consent,
we do not admit that we come within the category of persons whose consent is
required under, and we do not admit that we are "experts" for purposes of, the
Securities Act of 1933, as amended, and rules and regulations promulgated
thereunder.
 
                                          SMITH BARNEY INC. SALOMON BROTHERS
                                           INC
 
                                                  
                                          By:   /s/ Smith Barney Inc.
                                             -----------------------------------
                                                    SMITH BARNEY INC.
   
March 9, 1998     

<PAGE>
 
                                                                 
                                                              EXHIBIT 99.3     
 
                 CONSENT OF MORGAN STANLEY & CO. INCORPORATED
 
Continental Homes Holding Corporation
 
Dear Sirs:
 
  We hereby consent to the inclusion in the Registration Statement of D.R.
Horton Corporation ("Horton"), relating to the proposed merger of Continental
Homes Holding Corporation with Horton, of our opinion letter in the Joint
Proxy Statement/Prospectus which is a part of the Registration Statement, and
to the references of our firm name therein. In giving such consent, we do not
thereby admit that we come within the category of persons whose consent is
required under Section 7 of the Securities Act of 1933, as amended, or the
rules and regulations adopted by the Securities and Exchange Commission
thereunder nor do we admit that we are experts with respect to any part of
such Registration Statement within the meaning of the term "experts" as used
in the Securities Act of 1933, as amended, or the rules and regulations of the
Securities and Exchange Commission thereunder.
 
                                          Very truly yours,
 
                                          MORGAN STANLEY & CO. INCORPORATED
 
                                                  /s/ R.D. Sturzenegger
                                          By:----------------------------------
                                                        Principal
   
March 6, 1998     


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