IRVINE APARTMENT COMMUNITIES INC
PREM14A, 1999-04-02
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>   1
                                  SCHEDULE 14A
                INFORMATION REQUIRED IN PROXY STATEMENT
                            SCHEDULE 14A INFORMATION

                PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
 
Filed by the Registrant [X]
Filed by a Party other than the Registrant [ ]
 
Check the appropriate box:
 
[X]  Preliminary Proxy Statement
[ ]  Confidential, for Use of the Commission Only (as permitted by 
     Rule 14a-6(e)(2))
[ ]  Definitive Proxy Statement
[ ]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to Section 240.14a-11(c) or Section 240.14a-12


                       IRVINE APARTMENT COMMUNITIES, INC.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)
 
                       IRVINE APARTMENT COMMUNITIES, INC.
- --------------------------------------------------------------------------------
                   (Name of Person(s) Filing Proxy Statement)
 

Payment of Filing Fee (Check the appropriate box):
 
[ ]  No fee required.
 
[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
 
     (1)  Title of each class of securities to which transaction applies:
 

          --------------------------------------------------------------------- 
 
     (2)  Aggregate number of securities to which transaction applies:
 

          --------------------------------------------------------------------- 
 
     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11:
 

          --------------------------------------------------------------------- 
 
     (4)  Proposed maximum aggregate value of transaction:
 

          --------------------------------------------------------------------- 

     (5)  Total fee paid:
 

          --------------------------------------------------------------------- 
 
[X]  Fee paid previously with preliminary materials.
 
[ ]  Check box if any part of the fee is offset as provided by Exchange Act
     Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
     previously. Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.
 
     (1)  Amount Previously Paid:

          --------------------------------------------------------------------- 
     (2)  Form, Schedule or Registration Statement No.:
 
          --------------------------------------------------------------------- 
     (3)  Filing Party:
 
          --------------------------------------------------------------------- 
     (4)  Date Filed:

          --------------------------------------------------------------------- 
<PAGE>   2
 
                                      LOGO
 
                       IRVINE APARTMENT COMMUNITIES, INC.
 
                            550 NEWPORT CENTER DRIVE
                        NEWPORT BEACH, CALIFORNIA 92660
 
                                                                          , 1999
Dear Irvine Apartment Communities, Inc. Shareholder:
 
     You are cordially invited to attend a special meeting of the shareholders
of Irvine Apartment Communities, Inc. (the "Company") to be held at the
          , on                     , 1999, at                     , local time
(the "Special Meeting").
 
   
     At this meeting, you will be asked to vote on the merger of the Company
with and into TIC Acquisition LLC (the "Acquiror"), an indirect wholly-owned
subsidiary of The Irvine Company. Currently, The Irvine Company and its sole
shareholder, Donald Bren, own an aggregate of approximately 17.9% of the
Company's outstanding common stock. Mr. Bren is also Chairman of the Board of
the Company and Chairman of the Board of The Irvine Company. In addition, two of
the remaining eight members of the Company's Board of Directors, Michael D.
McKee and Raymond L. Watson, are executive officers and directors of The Irvine
Company.
    
 
     In the merger, you will have the right to receive $34.00 in cash for each
share of Irvine Apartment Communities, Inc. common stock you own. The $34.00 per
share price represents a 24.2% premium to the closing price of the Company's
common stock on the New York Stock Exchange of $27.375 on December 1, 1998, the
day that the Acquiror made its initial merger proposal to the Company's Board of
Directors.
 
     An independent special committee (the "Special Committee") formed by the
Company's Board of Directors negotiated the $34.00 per share price and other
terms of the transaction with the Acquiror. The Special Committee consists of
four Board members who are not employees of the Company or The Irvine Company
and who are not affiliated with The Irvine Company or its affiliates (other than
the Company and its subsidiaries).
 
     The Board of Directors of the Company, acting on the unanimous
recommendation of the Special Committee, has unanimously approved the proposed
merger with the Acquiror (the terms of which are set forth in a merger agreement
between the Company and the Acquiror). The Special Committee and the full Board
of Directors believe that the proposed merger is in the best interests of the
Company's shareholders (other than the Acquiror and its affiliates). Therefore,
the Board of Directors unanimously recommends that you vote in favor of the
merger and the merger agreement.
 
     The attached notice of meeting and proxy statement describe the merger and
the merger agreement and provide specific information concerning the Special
Meeting. Please read these materials carefully.
<PAGE>   3
 
     Whether or not you plan to attend the Special Meeting, I urge you to
complete, date, sign and promptly return the enclosed proxy card to ensure that
your shares will be voted at the meeting. The merger is an important decision
for the Company and its shareholders. The merger will only be approved upon the
affirmative vote of (i) the holders of two-thirds of the total number of
outstanding shares of Irvine Apartment Communities, Inc. common stock and (ii)
the holders of a number of shares of Irvine Apartment Communities, Inc. common
stock (excluding the shares held by the Acquiror and its affiliates)
representing a majority of the total number of outstanding shares of Irvine
Apartment Communities, Inc. common stock. Thus, if you fail to return your proxy
card, the effect will be the same as a vote against the merger, unless you
appear at the Special Meeting and vote in favor of the merger.
 
     On behalf of the Board of Directors, I thank you for your support and urge
you to vote FOR adoption of the merger and the merger agreement.
 
                                          Sincerely,
 
                                          William H. McFarland
                                          President and Chief Executive Officer
<PAGE>   4
 
                                      LOGO
 
                       IRVINE APARTMENT COMMUNITIES, INC.
 
                            550 NEWPORT CENTER DRIVE
                        NEWPORT BEACH, CALIFORNIA 92660
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
 
                        TO BE HELD                , 1999
 
To the Shareholders:
 
     Notice is hereby given that a Special Meeting of the Shareholders of Irvine
Apartment Communities, Inc. will be held at the                ,
               ,                , on             , 1999, at                local
time, for the following purposes:
 
          1. To consider and act upon a proposal to approve and adopt the merger
     of Irvine Apartment Communities, Inc. with and into TIC Acquisition LLC
     (the "Merger") and an Agreement and Plan of Merger between Irvine Apartment
     Communities, Inc. and TIC Acquisition LLC (the "Merger Agreement"). TIC
     Acquisition LLC is an indirect wholly-owned subsidiary of The Irvine
     Company that was formed with a view to implementing the Merger. If the
     Merger and the Merger Agreement are adopted by the shareholders of Irvine
     Apartment Communities, Inc. and the other conditions to the Merger are
     satisfied or waived, each outstanding share of Irvine Apartment
     Communities, Inc.'s common stock will be converted into the right to
     receive $34.00 in cash per share, without interest.
 
   
          2. If the Board of Directors of the Company (or the Special Committee
     thereof) determines that Shareholders have not had sufficient time to
     consider the Merger and the Merger Agreement, to vote upon the adjournment
     or postponement of the Special Meeting for the purpose of soliciting
     additional proxies.
    
 
   
          3. To transact such other business as may properly come before the
     meeting or any adjournment or postponement thereof.
    
 
     The close of business on             , 1999 has been fixed as the record
date for determination of the shareholders entitled to notice of and to vote at
the Special Meeting or any adjournment thereof. Any shareholder will be able to
examine a list of holders of record, for any purpose related to the Special
Meeting, during the 10-day period before the Special Meeting. The list will be
available at the offices of Irvine Apartment Communities, Inc., 550 Newport
Center Drive, Suite 300, Newport Beach, California 92660; telephone (949)
720-5500.
 
     Shareholders may vote in person or by proxy. The proxy statement, which
explains the merger in detail, and the accompanying proxy card are included with
this notice. Holders of record of common stock at the close of business on
            , 1999 will be entitled to vote at the Special Meeting or any
adjournment thereof with respect to all matters described above. PLEASE
COMPLETE, DATE, SIGN AND RETURN THE ENCLOSED PROXY CARD PROMPTLY IN THE ENCLOSED
POSTAGE-PAID ENVELOPE.
 
                                          By Order of the Board of Directors,
 
                                          Shawn Howie
                                          Interim Chief Financial Officer and
                                          Secretary
Newport Beach, California
            , 1999
<PAGE>   5
 
                                      LOGO
 
                       IRVINE APARTMENT COMMUNITIES, INC.
 
                            550 NEWPORT CENTER DRIVE
                        NEWPORT BEACH, CALIFORNIA 92660
                            ------------------------
 
                                PROXY STATEMENT

                            ------------------------
 
                        SPECIAL MEETING OF SHAREHOLDERS
 
                        TO BE HELD                , 1999
 
     This Proxy Statement is being furnished to the holders of common stock
("Common Stock") of Irvine Apartment Communities, Inc., a Maryland corporation
(the "Company"), in connection with the solicitation of proxies by the Board of
Directors of the Company (the "Board of Directors") for use at the Special
Meeting of Shareholders (the "Special Meeting") to be held on             ,
1999. The Board of Directors has fixed the close of business on             ,
1999 as the record date (the "Record Date") for the Special Meeting with respect
to this solicitation.
 
   
     At the Special Meeting, the holders of Common Stock (the "Shareholders")
will consider and vote upon a proposal to approve and adopt the proposed merger
(the "Merger") of the Company with and into TIC Acquisition LLC, a Delaware
limited liability company (the "Acquiror"), and an Agreement and Plan of Merger
dated as of February 1, 1999 (the "Merger Agreement") between the Company and
the Acquiror. A copy of the Merger Agreement is attached as Appendix A to this
Proxy Statement. Pursuant to the Merger Agreement and subject to satisfaction of
the conditions set forth therein, (i) the Company would be merged with and into
the Acquiror, with the Acquiror continuing as the surviving company (the
"Surviving Company"), and (ii) each outstanding share of Common Stock would be
converted, upon consummation of the Merger, into the right to receive $34.00 in
cash from the Acquiror. The Merger and the Merger Agreement are collectively
referred to as the "Merger Proposal" in this Proxy Statement. The Acquiror is an
indirect wholly-owned subsidiary of The Irvine Company, which, together with its
sole shareholder, Donald Bren currently owns approximately 17.9% of the
outstanding shares of Common Stock. In addition, Mr. Bren currently serves as
Chairman of the Board of Directors of The Irvine Company and Chairman of the
Board of Directors of the Company (which has nine members). Two other
individuals, Michael D. McKee and Raymond L. Watson, who serve as officers and
directors of The Irvine Company, also serve as directors of the Company.
Directors of the Company are referred to as "Directors" in this Proxy Statement.
    
 
     THE BOARD OF DIRECTORS, BASED UPON THE UNANIMOUS RECOMMENDATION OF A
SPECIAL COMMITTEE (THE "SPECIAL COMMITTEE") CONSISTING OF FOUR DIRECTORS WHO ARE
INDEPENDENT OF THE ACQUIROR, THE IRVINE COMPANY AND THEIR AFFILIATES (OTHER THAN
THE COMPANY AND ITS SUBSIDIARIES), HAS UNANIMOUSLY APPROVED THE MERGER PROPOSAL.
THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE SHAREHOLDERS VOTE FOR
APPROVAL AND ADOPTION OF THE MERGER PROPOSAL.
 
     SHAREHOLDERS ARE URGED TO READ AND CONSIDER CAREFULLY THE INFORMATION
CONTAINED IN THIS PROXY STATEMENT AND TO CONSULT WITH THEIR PERSONAL FINANCIAL
AND TAX ADVISORS.
 
   
     This Proxy Statement, the accompanying Notice of Special Meeting and the
accompanying proxy card are first being mailed to Shareholders on or about
            , 1999. A copy of the Company's Annual Report on Form 10-K/A for the
year ended December 31, 1998 accompanies this Proxy Statement.
    
 
     IT IS IMPORTANT THAT PROXIES BE RETURNED PROMPTLY. THEREFORE, WHETHER OR
NOT YOU PLAN TO ATTEND THE SPECIAL MEETING, PLEASE COMPLETE, DATE, SIGN AND
RETURN THE PROXY CARD IN THE ENCLOSED POSTAGE-PAID ENVELOPE.

                            ------------------------
 
            The date of this Proxy Statement is             , 1999.

                            ------------------------
 
  THIS TRANSACTION HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE FAIRNESS OR MERITS OF
SUCH TRANSACTION NOR UPON THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED
       IN THIS DOCUMENT. ANY REPRESENTATION TO THE CONTRARY IS UNLAWFUL.
<PAGE>   6
 
                            ------------------------
 
                               TABLE OF CONTENTS
                            ------------------------
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
QUESTIONS AND ANSWERS ABOUT THE MERGER......................    1
 
WHO CAN HELP ANSWER YOUR QUESTIONS?.........................    2
 
SUMMARY.....................................................    3
  Voting....................................................    3
  Purpose, Structure and Effects of the Merger..............    3
  Recommendation of the Board of Directors and the Special
     Committee..............................................    4
  Factors Considered by the Board of Directors and the
     Special Committee......................................    5
  Morgan Stanley's Fairness Opinion.........................    6
  Potential Conflicts of Interest of Officers and Directors
     of the Company.........................................    6
  The Merger Consideration..................................    6
  Conditions to the Merger..................................    6
  Termination of the Merger Agreement.......................    7
  Financing; Source of Funds................................    8
  Federal Income Tax Consequences...........................    8
  No Appraisal Rights.......................................    8
 
INFORMATION CONCERNING THE SPECIAL MEETING..................    9
  Time, Place and Date......................................    9
  Purpose of the Special Meeting............................    9
  Record Date; Quorum; Outstanding Common Stock Entitled to
     Vote...................................................    9
  Vote Required.............................................    9
  Action to Be Taken Under the Proxy........................   10
  Proxy Solicitation........................................   10
 
GENERAL.....................................................   10
  The Company...............................................   10
  The Acquiror..............................................   11
 
BACKGROUND; PURPOSE AND EFFECTS OF THE MERGER...............   12
  Background of the Merger..................................   12
  The Acquiror's Purpose; Structure of the Merger...........   17
  Recommendation of the Special Committee and the Board of
     Directors; Fairness of the Merger......................   19
  Benefits and Detriments to Nonaffiliated Shareholders.....   20
  Opinion of the Financial Advisor for the Special
     Committee..............................................   21
  Position of the Acquiror and The Irvine Company...........   27
  Summary of the NationsBanc Montgomery Reports.............   27
  Interests of Certain Persons in the Merger; Certain
     Company Benefit Plans..................................   41
  Certain Consequences of the Merger........................   44
  Plans for the Company After the Merger....................   45
  Conduct of the Business of the Company If the Merger Is
     Not Consummated........................................   45
  Material Tax Consequences.................................   45
  Litigation Regarding the Merger...........................   46
  Accounting Treatment......................................   47
</TABLE>
    
 
                                       ii
<PAGE>   7
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
THE MERGER..................................................   48
  The Merger................................................   48
  Merger Consideration......................................   48
  Effective Time............................................   48
  Exchange and Payment Procedures...........................   48
  Transfer of Common Stock..................................   49
  Additional Agreements.....................................   49
  Conduct of Business Pending the Merger....................   50
  Representations and Warranties............................   51
  Conditions................................................   52
  Termination; Withdrawal of Recommendations................   53
  Termination Fees and Expenses.............................   54
  Amendment and Waiver......................................   55
  Letter Agreement with The Irvine Company..................   55
  Financing; Source of Funds................................   55
  No Appraisal Rights.......................................   55
  Fees and Expenses.........................................   56
  Regulatory Requirements...................................   56
SELECTED FINANCIAL DATA OF THE COMPANY......................   57
COMMON STOCK MARKET PRICE INFORMATION; DIVIDEND
  INFORMATION...............................................   58
CERTAIN FINANCIAL PROJECTIONS OF THE COMPANY................   58
CERTAIN RELATIONSHIPS AND TRANSACTIONS......................   60
  Agreement with Messrs. Thompson, Dorfman and Hughes.......   60
  Special Rights of The Irvine Company Under Certain
     Agreements.............................................   60
  Purchases of Common Stock and Common L.P. Units by The
     Irvine Company and Its Affiliates Since January 1,
     1997...................................................   62
  Other Transactions........................................   63
MANAGEMENT OF THE COMPANY...................................   64
MANAGEMENT OF THE ACQUIROR AND ITS MEMBERS..................   64
  The Acquiror..............................................   64
  The Irvine Company........................................   65
  ICDC......................................................   67
SECURITIES OWNERSHIP........................................   69
PROPOSALS BY SHAREHOLDERS OF THE COMPANY....................   71
INDEPENDENT AUDITORS........................................   72
ANNUAL REPORT...............................................   72
WHERE YOU CAN FIND MORE INFORMATION.........................   72
CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING
  STATEMENTS................................................   72
OTHER MATTERS...............................................   73
APPENDIX A -- MERGER AGREEMENT..............................  A-1
APPENDIX B -- OPINION OF MORGAN STANLEY.....................  B-1
APPENDIX C -- LETTER AGREEMENT BETWEEN THE COMPANY AND THE
  IRVINE COMPANY............................................  C-1
</TABLE>
    
 
                                       iii
<PAGE>   8
 
                     QUESTIONS AND ANSWERS ABOUT THE MERGER
 
Q:  WHAT WILL I RECEIVE IN THE MERGER?
 
A:  You will receive $34.00 in cash in exchange for each share of Irvine
    Apartment Communities, Inc. Common Stock owned by you at the time of the
    Merger. The Special Committee formed by the Company's Board of Directors
    negotiated this price with the Acquiror. The record date for the Special
    Meeting is earlier than the expected date of the Merger -- therefore,
    transferors of shares of Common Stock after the record date but prior to the
    Merger will retain their right to vote at the Special Meeting but the right
    to receive the $34.00 in cash per share will transfer with the shares of
    Common Stock.
 
Q:  WHAT WILL HAPPEN TO MY DIVIDENDS?
 
A:  The Merger Agreement permits the continued declaration and payment of
    regular quarterly dividends of $.385 per share on the Common Stock, in
    accordance with past practice, but also requires that the record dates for
    the second and third quarter 1999 quarterly dividends not be earlier than
    June 15, 1999 and September 15, 1999, respectively. Such dates are later
    than the record dates in prior years. The Company currently intends to set
    the close of business on June 15, 1999 as the record date for the second
    quarter 1999 quarterly dividend. Therefore, if the Merger is consummated on
    or before June 15, 1999, you will not receive any additional dividends on
    your Common Stock.
 
   
Q:  WHAT DO I NEED TO DO NOW?
    
 
A:  Please complete, date and sign your proxy card and then mail it in the
    enclosed postage-paid envelope as soon as possible, so that your shares may
    be represented at the Special Meeting.
 
Q:  SHOULD I SEND IN MY STOCK CERTIFICATES NOW?
 
A:  No. After the Merger is completed, we will send you written instructions for
    exchanging your stock certificates.
 
Q:  IF MY SHARES ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY BROKER VOTE MY
    SHARES FOR ME?
 
A:  Your broker will vote your shares ONLY if you provide your broker with
    instructions on how to vote. Any failure to instruct your broker to vote in
    favor of the Merger will have the effect of a NO vote. You should follow the
    directions provided by your broker regarding how to instruct your broker to
    vote your shares.
 
Q:  MAY I CHANGE MY VOTE AFTER I HAVE MAILED MY SIGNED PROXY CARD?
 
A:  Yes. Just send in a later dated, signed proxy card before the Special
    Meeting or attend the Special Meeting and vote.
 
Q:  WHEN DO YOU EXPECT THE MERGER TO BE COMPLETED?
 
A:  We are working to complete the Merger as quickly as possible. We expect to
    complete the Merger (if it is approved) within several days of the Special
    Meeting.
 
Q:  WHAT ARE THE TAX CONSEQUENCES OF THE MERGER?
 
   
A:  The exchange of Common Stock for cash by a Shareholder in the Merger will be
    a taxable transaction for federal income tax purposes and may also be a
    taxable transaction under state and local and other tax laws. See
    "Background; Purpose and Effects of the Merger -- Material Tax
    Consequences."
    
 
Q:  WHAT OTHER MATTERS WILL BE VOTED ON AT THE SPECIAL MEETING?
 
A:  We do not expect to ask you to vote on any other matters at the Special
    Meeting.
<PAGE>   9
 
Q:  WHAT WILL HAPPEN TO THE EXISTING PUBLIC AND TAX-EXEMPT DEBT SECURITIES AND
    PREFERRED EQUITY OF IRVINE APARTMENT COMMUNITIES, L.P. AND IAC CAPITAL
    TRUST?
 
   
A:  By itself, the Merger will not have any effect on these securities -- they
    will remain obligations of Irvine Apartment Communities, L.P. and IAC
    Capital Trust, as applicable. The Company has been advised by the Acquiror
    that the Acquiror's present intention is to retain all such existing debt
    securities and preferred equity. The Acquiror's plans could be revised,
    however. See "Background; Purpose and Effects of the Merger -- The
    Acquiror's Purpose; Structure of the Merger -- No Offer Made to Holders of
    Limited Partner Interests in the Operating Partnership."
    
 
   
                      WHO CAN HELP ANSWER YOUR QUESTIONS?
    
 
     If you have more questions about the Merger or would like additional copies
of this Proxy Statement, you should contact:
 
                            GEORGESON & COMPANY INC.
                           88 Pine Street, 30th Floor
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 440-9800
                   All Others Call Toll-Free: (800) 223-2064
                              FAX: (212) 440-9009
 
                                        2
<PAGE>   10
 
                                    SUMMARY
 
   
     This summary highlights the material information included in this Proxy
Statement. This summary may not contain all of the information that is important
to you. To understand the Merger fully and for a more complete description of
the legal terms of the Merger, you should read carefully this entire document
and the other documents to which we have referred you. See "Where You Can Find
More Information." The actual terms of the Merger are contained in the Merger
Agreement, a copy of which is attached as Appendix A to this Proxy Statement.
    
 
   
     All information contained in this Proxy Statement relating to the Acquiror,
The Irvine Company and their affiliates (other than the Company and its
subsidiaries) or to their respective actions, purposes, beliefs, intentions or
plans has been supplied by the Acquiror for inclusion herein and has not been
independently verified by the Company. This information includes, without
limitation, certain information set forth under the captions "-- Purpose,
Structure and Effects of the Merger," "-- Financing; Source of Funds,"
"General -- The Acquiror," "Background; Structure and Effects of the
Merger -- Background of the Merger," "-- The Acquiror's Purpose; Structure of
the Merger," "-- Position of the Acquiror and The Irvine Company," "-- Summary
of the NationsBanc Montgomery Reports," "-- Plans for the Company After the
Merger," "The Merger -- Financing; Source of Funds," "-- Regulatory
Requirements," "Certain Relationships and Transactions" and "Securities
Ownership."
    
 
VOTING
 
   
     At the Special Meeting, the Shareholders will vote on a proposal to approve
and adopt the Merger Proposal. Each share of Common Stock is entitled to one
vote. Maryland law and the Company's Articles of Incorporation provide that the
Merger must be approved by the holders of two-thirds of the total number of
outstanding shares of Common Stock. The Merger Agreement also requires that the
holders of a number of shares of Common Stock (excluding the shares held by the
Acquiror and its affiliates) representing a majority of the total number of
outstanding shares of Common Stock vote to approve the Merger. Subject to the
Merger Agreement, which requires that the Special Meeting be held as promptly as
practicable, Shareholders may also be asked to vote on adjournment or
postponement of the Special Meeting for the purpose of soliciting additional
proxies if the Board of Directors or the Special Committee determines that
Shareholders have not had sufficient time to consider the Merger Proposal.
    
 
   
     The Record Date for determining who is entitled to vote at the Special
Meeting has been fixed as the close of business on             , 1999. On the
Record Date, there were                shares of Common Stock outstanding, held
of record by approximately                registered holders. Of such shares, an
aggregate of 3,613,738 shares are beneficially owned by The Irvine Company and
Donald Bren, affiliates of the Acquiror.
    
 
PURPOSE, STRUCTURE AND EFFECTS OF THE MERGER
 
   
     The purpose of the Merger is for the Acquiror to acquire the assets of the
Company, while providing the Nonaffiliated Shareholders with the opportunity to
liquidate their investment in the Company for cash at a significant premium to
market prices for the Common Stock prior to the announcement of the Acquiror's
acquisition offer. The Acquiror and The Irvine Company believe that the Merger
will result in benefits to the Acquiror and The Irvine Company, including: (i)
enabling The Irvine Company to manage directly the Operating Partnership and
thereby integrate The Irvine Company's apartment activities with its other
activities in achieving its master plan for development of the Irvine Ranch;
(ii) enhancing The Irvine Company's ability to retain capital for future
development of apartment communities; (iii) reducing overall operational and
administrative costs; and (iv) providing enhanced tax benefits.
    
 
     Pursuant to the Merger Agreement, following approval and adoption of the
Merger Proposal and subject to the fulfillment or waiver of certain conditions,
the Company will be merged with and into the Acquiror, and the Acquiror will
continue as the Surviving Company in the Merger.
 
     Upon completion of the Merger, holders of shares of Common Stock will have
the right to receive $34.00 in cash per share. Also, upon completion of the
Merger, Nonaffiliated Shareholders will cease to have any
                                        3
<PAGE>   11
 
ownership interest in the Company and will cease to participate in future
earnings and growth, if any, of the Company or benefit from any increases, if
any, in the value of the Company. Moreover, upon completion of the Merger, the
Common Stock will be canceled, public trading of the Common Stock will cease and
the Common Stock will be delisted from the New York Stock Exchange (the "NYSE").
 
     Pursuant to the terms of the Merger, the Acquiror will pay $34.00 in cash
per share of Common Stock, or an aggregate of approximately $563 million, to the
Nonaffiliated Shareholders.
 
   
     The following charts show the ownership structure of the Company and Irvine
Apartment Communities, L.P., a Delaware limited partnership (the "Operating
Partnership"):
    
 
   
                       OWNERSHIP STRUCTURE OF THE COMPANY
    
                                     CHART
 
   
                OWNERSHIP STRUCTURE OF THE OPERATING PARTNERSHIP
    
                                     CHART
 
- ---------------
   
(1) Includes 0.9% of the Common Stock held by a trust of which Mr. Bren is the
    trustee.
    
 
   
(2) Includes 16.3% of the common limited partnership interests in the Operating
    Partnership ("Common L.P. Units") held by 6 partnerships of which The Irvine
    Company is the 99% general partner and DBIAC Investment Company, a
    California corporation wholly owned by Mr. Bren, is the 1% partner.
    
 
RECOMMENDATION OF THE BOARD OF DIRECTORS AND THE SPECIAL COMMITTEE
 
     The Board of Directors, acting on the unanimous recommendation of the
Special Committee, has unanimously approved the Merger Proposal and recommends
that you vote to adopt the Merger Proposal. The
 
                                        4
<PAGE>   12
 
Board of Directors and the Special Committee believe that the Merger is in the
best interests of the Nonaffiliated Shareholders, and that the $34.00 per share
price is fair to the Nonaffiliated Shareholders.
 
FACTORS CONSIDERED BY THE BOARD OF DIRECTORS AND THE SPECIAL COMMITTEE
 
   
     In reaching their decision to recommend, approve and adopt the Merger
Proposal, the Board of Directors and the Special Committee considered a number
of factors. The material factors considered were:
    
 
   
     - the opinion of Morgan Stanley & Co. Incorporated ("Morgan Stanley") as to
       the fairness from a financial point of view to the Nonaffiliated
       Shareholders of the $34.00 per share to be received by the Nonaffiliated
       Shareholders, and the analyses presented to the Special Committee and the
       Board of Directors by Morgan Stanley (see "Background; Purpose and
       Effects of the Merger -- Opinion of the Financial Advisor for the Special
       Committee");
    
 
   
     - the structural impediments contained in the Company's Articles of
       Incorporation (including ownership limitations and provisions that
       effectively require the consent of The Irvine Company before the Company
       can engage in certain transactions (including sale or liquidation of the
       Company) or amend the Company's Articles of Incorporation to change these
       provisions), as well as The Irvine Company's stated desire not to
       consider offers to sell its position in the Company, making it
       impracticable for the Company to solicit a third-party bidder (see
       "Certain Relationships and Transactions -- Special Rights of The Irvine
       Company Under Certain Agreements");
    
 
   
     - the fact that $34.00 per share was within the range of net asset value
       valuations for real estate transactions presented by Morgan Stanley (see
       "Background; Purpose and Effects of the Merger -- Opinion of the
       Financial Advisor for the Special Committee -- Net Asset Value");
    
 
   
     - the history of the negotiations with respect to the Merger Proposal that,
       among other things, led to an increase in the Acquiror's offer from
       $32.50 to $34.00 per share, and the belief of the Special Committee that
       $34.00 per share was the best price that could be obtained from the
       Acquiror (or any other party, primarily because of the above-referenced
       structural impediments);
    
 
     - the fact that the $34.00 per share to be received by Nonaffiliated
       Shareholders in the Merger represented a premium of approximately 24.2%
       to the closing price of the Common Stock on the NYSE of $27.375 on
       December 1, 1998, the day the Acquiror made its initial merger proposal
       to the Company's Board of Directors, and that $34.00 per share exceeds
       the all-time high price of the Common Stock ($33.50 per share);
 
   
     - the fact that the Company could continue to declare regular quarterly
       dividends (although the record dates for the second and third quarter
       1999 quarterly dividends may not be earlier than June 15, 1999 and
       September 15, 1999, respectively);
    
 
   
     - the terms and conditions of the Merger Agreement, including the price of
       $34.00 in cash per share, the scope of the parties' representations,
       warranties, covenants and agreements, the limited number of conditions to
       the obligations of the Acquiror and the rights of the Special Committee
       and the Board of Directors, consistent with their duties, to withdraw or
       modify their respective recommendations;
    
 
   
     - the Shareholder approval condition to the consummation of the Merger that
       effectively requires the affirmative vote of approximately 60.9% of the
       shares held by the Nonaffiliated Shareholders in favor of the Merger
       Proposal; and
    
 
   
     - the fact that, although no third party offers were actively solicited,
       from the time of the Acquiror's initial acquisition proposal which was
       publicly announced on December 1, 1998 through the approval of the Merger
       by the Special Committee and the Board of Directors on February 1, 1999,
       neither the Company nor the Special Committee received any alternative
       offers (taking into account the potential deterrent effect of the
       structural impediments discussed above).
    
 
                                        5
<PAGE>   13
 
   
     Nonaffiliated Shareholders should be aware that, following the Merger, they
will cease to participate in future earnings or growth, if any, of the Company
or benefit from any increases, if any, in the value of the Company, and they no
longer will bear the risk of any decreases in the value of the Company.
    
 
MORGAN STANLEY'S FAIRNESS OPINION
 
   
     Morgan Stanley delivered to the Board of Directors a written opinion, dated
February 1, 1999, that the consideration the Acquiror is paying is fair to the
Nonaffiliated Shareholders from a financial point of view. Morgan Stanley's
opinion is attached as Appendix B to this Proxy Statement. Please read this
opinion. Morgan Stanley will receive a financial advisory fee of approximately
$4.3 million, approximately $3.8 million of which is contingent upon the
consummation of the Merger. See "Background; Purpose and Effects of the
Merger -- Opinion of the Financial Advisor for the Special Committee."
    
 
   
POTENTIAL CONFLICTS OF INTEREST OF OFFICERS AND DIRECTORS OF THE COMPANY
    
 
   
     Officers and Directors of the Company may have interests in the Merger that
are different from your interests as a Shareholder or relationships that may
present conflicts of interest, as follows:
    
 
   
     - Messrs. Bren, McKee and Watson, Directors of the Company, are executive
       officers and directors of The Irvine Company;
    
 
   
     - Six officers (William H. McFarland, William W. Thompson, Richard E.
       Lamprecht, Rudy A. Svrcek, Scott A. Reinert and Shawn Howie) have entered
       into letter agreements with the Company which provide for benefits in the
       event of termination following the Merger;
    
 
   
     - The Directors and executive officers of the Company will receive an
       aggregate of approximately $2,750,000 in payment for cancellation of
       vested options upon consummation of the Merger, and executive officers of
       the Company may be entitled in the future (subject to continued
       employment or in the event of certain terminations of employment) to
       receive an aggregate of approximately $6,442,000 in payment for
       cancellation of unvested options and restricted stock units;
    
 
   
     - Three officers of the Company (William W. Thompson, Bruce N. Dorfman and
       Robert J. Hughes) have entered into an agreement with the Operating
       Partnership relating to the purchase of their interests in Thompson
       Residential Company, Inc. ("TRC") by the Operating Partnership,
       contingent upon the consummation of the Merger; and
    
 
   
     - Two Directors (John F. Grundhofer and Jack W. Peltason) or their
       affiliates have had, and may continue to have, business relationships
       with Mr. Bren or The Irvine Company.
    
 
   
     See "Background; Purpose and Effects of the Merger -- Interests of Certain
Persons in the Merger; Certain Company Benefit Plans" and "Certain Relationships
and Transactions."
    
 
THE MERGER CONSIDERATION
 
     If the Merger is completed, you will receive $34.00 in cash per share for
your Common Stock (the "Merger Consideration"). In the Merger, the Acquiror will
pay approximately $563 million to the Nonaffiliated Shareholders.
 
CONDITIONS TO THE MERGER
 
     There are a number of conditions that must be satisfied before either the
Company or the Acquiror is obligated to complete the Merger. These conditions
are:
 
     - the holders of two-thirds of the total number of outstanding shares of
       Common Stock must approve the Merger;
 
     - the holders of a number of shares of Common Stock (excluding the shares
       held by the Acquiror and its affiliates) representing a majority of the
       total number of outstanding shares of Common Stock must approve the
       Merger; and
 
                                        6
<PAGE>   14
 
     - there can be no legal restraints or prohibitions that prevent completion
       of the Merger.
 
     There are additional conditions that the Company must meet before the
Acquiror is obligated to complete the Merger. These conditions are:
 
     - the representations and warranties the Company made in the Merger
       Agreement must be true and correct in all material respects;
 
     - the Company must comply in all material respects with the terms of the
       Merger Agreement;
 
   
     - the Acquiror must have received a tax opinion (as to the qualification of
       each of the Company and IAC Capital Trust as a real estate investment
       trust ("REIT") within the meaning of the Internal Revenue Code of 1986,
       as amended (the "Code"), and as to the treatment of the Operating
       Partnership, and each other subsidiary of the Company that is a
       partnership, as a partnership for federal income tax purposes) from the
       Company's counsel, Davis Polk & Wardwell ("Davis Polk"); and
    
 
     - all awards under any Company stock option plan must be canceled in
       accordance with the terms of the Merger Agreement.
 
     There are additional conditions that the Acquiror must meet before the
Company is obligated to complete the Merger. These conditions are:
 
     - the representations and warranties the Acquiror made in the Merger
       Agreement must be true and correct in all material respects; and
 
     - the Acquiror must comply in all material respects with the terms of the
       Merger Agreement.
 
   
     The mutual conditions can be waived if waiver is legally permitted and both
parties agree (in the case of the Company, the determination as to the waiver
may be made only by the Special Committee on behalf of the Company). The
conditions the Company must meet can be waived by the Acquiror, and the
conditions the Acquiror must meet can be waived by the Special Committee on
behalf of the Company. If any material conditions are waived by the Special
Committee on behalf of the Company, the Special Committee will, in light of its
duties under Maryland law and the federal securities laws, determine at such
time if a resolicitation of Shareholders should be made.
    
 
TERMINATION OF THE MERGER AGREEMENT
 
     Either the Special Committee (on behalf of the Company) or the Acquiror may
terminate the Merger Agreement and abandon the Merger, generally whether before
or after approval by the Shareholders:
 
     - by mutual written consent;
 
     - if the Merger has not been completed by October 1, 1999;
 
     - if a law or final order prohibits the Merger; or
 
     - if the Merger Proposal is not approved by either (i) the holders of
       two-thirds of the total number of outstanding shares of Common Stock or
       (ii) the holders of a number of shares of Common Stock (excluding the
       shares held by the Acquiror and its affiliates) representing a majority
       of the total number of outstanding shares of Common Stock at the Special
       Meeting.
 
     The Special Committee (on behalf of the Company) may terminate the Merger
Agreement:
 
     - upon a material breach of any covenant or agreement contained in the
       Merger Agreement on the part of the Acquiror or if any representation or
       warranty of the Acquiror becomes untrue in any material respect and the
       Acquiror is not in good faith attempting to cure such breach; or
 
     - if, prior to the approval of the Merger Proposal by the Shareholders, the
       Special Committee determines to accept a superior acquisition proposal
       from a third party (subject to payment of a $19,250,000 break-up fee to
       the Acquiror).
 
                                        7
<PAGE>   15
 
     The Acquiror may terminate the Merger Agreement:
 
     - upon a material breach of any covenant or agreement contained in the
       Merger Agreement on the part of the Company or if any representation or
       warranty of the Company becomes untrue in any material respect and the
       Company is not in good faith attempting to cure such breach; or
 
     - upon any of the following (each of which will obligate the Company to pay
       a $19,250,000 break-up fee to the Acquiror):
 
      - the Company receives an acquisition proposal from a third party and,
        thereafter, the Special Committee or the Board of Directors (including a
        majority of the members of the Special Committee) withdraws or modifies
        its recommendation of the Merger or the Merger Agreement;
 
      - the Company receives an acquisition proposal from a third party and,
        thereafter, the Acquiror requests in writing that the Special Committee
        or the Board of Directors publicly reconfirm its recommendation of the
        Merger Proposal to the Shareholders and the Special Committee or the
        Board of Directors (including a majority of the members of the Special
        Committee) fails to do so within 5 business days after receipt of the
        Acquiror's request;
 
      - the Special Committee or the Board of Directors (including a majority of
        the members of the Special Committee) recommends to the Shareholders an
        alternative transaction;
 
      - a tender offer or exchange offer for 20% or more of the outstanding
        shares of Common Stock is commenced (other than by the Company or an
        affiliate of the Company) and the Special Committee or the Board of
        Directors (including a majority of the members of the Special Committee)
        recommends that the Shareholders tender their shares in such tender
        offer or exchange offer; or
 
      - the Company fails to call and hold the Special Meeting by October 1,
        1999.
 
FINANCING; SOURCE OF FUNDS
 
   
     The total amount of funds required to pay the Merger Consideration to the
Nonaffiliated Shareholders and fees and expenses related to the Merger is
estimated to be approximately $582 million. These funds will be obtained from
$150 million of cash on hand of the Acquiror and two irrevocable and
unconditional letters of credit from Bank of America National Trust and Savings
Association ("Bank of America") in the amounts of $350 million and $88 million,
respectively, which were entered into on             , 1999 (collectively, the
"Letters of Credit"). The Letters of Credit require the Acquiror to certify to
Bank of America that the proceeds obtained upon draw down of the Letters of
Credit will be applied only to the payment of the Merger Consideration to the
Nonaffiliated Shareholders.
    
 
FEDERAL INCOME TAX CONSEQUENCES
 
     You will be taxed on your receipt of the $34.00 per share to the extent
that the amount you receive exceeds your tax basis in your Common Stock. Because
determining the tax consequences of the Merger can be complicated, you should
consult your tax advisor in order to understand fully how the Merger will affect
you.
 
NO APPRAISAL RIGHTS
 
   
     Holders of Common Stock are not entitled to dissenting shareholders'
appraisal rights or other similar rights under the Maryland General Corporation
Law (the "MGCL") and will be bound by the terms of the Merger Agreement. The
MGCL does not provide appraisal rights or other similar rights to shareholders
of a corporation in connection with a merger if their shares are listed on a
national securities exchange, such as the NYSE, on the record date for
determining shareholders entitled to vote on such merger. All of the shares of
Common Stock outstanding on the record date for determining Shareholders
entitled to vote on the Merger were listed on the NYSE.
    
   
    
 
                                        8
<PAGE>   16
 
                   INFORMATION CONCERNING THE SPECIAL MEETING
 
   
TIME, PLACE AND DATE
    
 
   
     This Proxy Statement is being furnished to the holders of the outstanding
Common Stock of the Company in connection with the solicitation of proxies by
the Board of Directors for use at the Special Meeting of Shareholders of the
Company to be held on             , 1999 at      , local time, at the
            , including any adjournments or postponements thereof.
    
 
PURPOSE OF THE SPECIAL MEETING
 
   
     At the Special Meeting, holders of Common Stock will consider and vote upon
a proposal to approve and adopt the Merger and the Merger Agreement. Subject to
the Merger Agreement, which requires that the Special Meeting be held as
promptly as practicable, Shareholders may also be asked to vote on adjournment
or postponement of the Special Meeting for the purpose of soliciting additional
proxies if the Board of Directors or the Special Committee determines that
Shareholders have not had sufficient time to consider the Merger Proposal.
Additional information concerning the Special Meeting and the Merger Agreement
is set forth below and a copy of the Merger Agreement is attached as Appendix A
to this Proxy Statement. The Special Committee has unanimously determined that
the terms of the Merger Proposal are fair to, and in the best interests of, the
Nonaffiliated Shareholders, and has recommended that the Shareholders and the
Board of Directors vote for approval and adoption of the Merger Proposal and the
transactions contemplated thereby. Acting on the unanimous recommendation of the
Special Committee, the Board of Directors has unanimously approved and adopted
the Merger and the Merger Agreement. THE SPECIAL COMMITTEE AND THE BOARD OF
DIRECTORS UNANIMOUSLY RECOMMEND THAT SHAREHOLDERS VOTE FOR APPROVAL AND ADOPTION
OF THE MERGER PROPOSAL. HOWEVER, SHAREHOLDERS SHOULD BE AWARE THAT CERTAIN OF
THE MEMBERS OF THE BOARD OF DIRECTORS HAVE CONFLICTS OF INTEREST WITH RESPECT TO
THE MERGER. See "Background; Purpose and Effects of the Merger -- Interests of
Certain Persons in the Merger; Certain Company Benefit Plans" and "Certain
Relationships and Transactions."
    
 
RECORD DATE; QUORUM; OUTSTANDING COMMON STOCK ENTITLED TO VOTE
 
     The Record Date for the Special Meeting has been fixed as the close of
business on             , 1999. Only holders of record of Common Stock on the
Record Date are entitled to notice of and to vote at the Special Meeting.
Holders of Common Stock on the Record Date are entitled to one vote on matters
properly presented at the Special Meeting for each share of Common Stock held. A
list of Shareholders will be available for examination by holders of Common
Stock, for any purpose related to the Special Meeting, during the 10-day period
preceding the Special Meeting, at the offices of Irvine Apartment Communities,
Inc., 550 Newport Center Drive, Suite 300, Newport Beach, California, 92660;
telephone (949) 720-5500.
 
     On the Record Date, there were           shares of Common Stock
outstanding, held of record by approximately           registered holders. The
presence in person or by proxy of a majority of the shares of Common Stock
entitled to vote will constitute a quorum for the transaction of business at the
Special Meeting.
 
VOTE REQUIRED
 
   
     Pursuant to the MGCL and the Company's Articles of Incorporation, the
Merger must be approved and adopted by the affirmative vote of the holders of
two-thirds of the total number of outstanding shares of Common Stock. The Merger
Agreement also requires that the holders of a number of shares of Common Stock
(excluding the shares held by the Acquiror and its affiliates) representing a
majority of the total number of outstanding shares of Common Stock vote to
approve the Merger. The Irvine Company has advised the Company that it and its
affiliates will vote their shares of Common Stock for approval and adoption of
the Merger Proposal. As of the Record Date, The Irvine Company and Mr. Bren
beneficially owned an aggregate of 3,613,738 shares of Common Stock
(approximately 17.9% of the outstanding Common Stock). The Merger is also
subject to other conditions. See "The Merger -- Conditions."
    
 
                                        9
<PAGE>   17
 
     Failure to return an executed proxy card or to vote in person at the
Special Meeting or voting to abstain (or broker non-votes) will constitute, in
effect, a vote against approval and adoption of the Merger Proposal for purposes
of both the two-thirds vote requirement and the additional Nonaffiliated
Shareholder vote requirement specified in the Merger Agreement.
 
   
     Any proposal to adjourn or postpone the Special Meeting for the purpose of
soliciting additional proxies must be approved by a majority of the Shareholders
present in person or by proxy. Failure to return an executed proxy card or to
vote in person at the Special Meeting or voting to abstain (or broker non-votes)
will constitute, in effect, a vote against such adjournment or postponement.
    
 
ACTION TO BE TAKEN UNDER THE PROXY
 
   
     All proxy cards in the enclosed form that are properly executed and
returned to the Exchange Agent, EquiServe, L.P., on or before the date of the
Special Meeting, and not revoked, will be voted at the Special Meeting or any
adjournments or postponements thereof in accordance with any instructions
thereon, or, if no instructions are provided, will be voted FOR adoption and
approval of the Merger Proposal and, as appropriate, FOR adjournment or
postponement for the purpose of soliciting additional proxies. Any Shareholder
who has given a proxy pursuant to this solicitation may revoke it by attending
the Special Meeting and giving oral notice of his or her intention to vote in
person, without compliance with any other formalities. In addition, any proxy
given pursuant to this solicitation may be revoked prior to the Special Meeting
by delivering an instrument revoking it or a duly executed proxy bearing a later
date.
    
 
   
     Management of the Company does not know of any matters other than those set
forth herein which may come before the Special Meeting. If any other matters are
properly presented at the Special Meeting for action, it is intended that the
persons named in the enclosed form of proxy and acting thereunder will vote in
accordance with their discretion on such matters.
    
 
PROXY SOLICITATION
 
     The expense of preparing, printing and mailing this Proxy Statement and the
proxies solicited hereby will be borne by the Company. In addition to the use of
the mails, proxies may be solicited by officers and Directors and regular
employees of the Company, without additional remuneration, by personal
interviews, written communication, telephone, telegraph or facsimile
transmission. The Company also will request brokerage firms, nominees,
custodians and fiduciaries to forward proxy materials to the beneficial owners
of Common Stock held of record by such brokerage firms, nominees, custodians and
fiduciaries and will provide reimbursement for the cost of forwarding the
material in accordance with customary charges. In addition, the Company has
retained Georgeson & Company Inc. to assist in the solicitation of proxies at an
estimated fee of $15,000 plus reimbursement of reasonable expenses.
 
                                    GENERAL
 
THE COMPANY
 
   
     Formed in 1993, the Company operates as a REIT under the Code. In
connection with the Company's initial public offering of Common Stock (the
"Offering"), the Company obtained a general partnership interest in and became
the sole managing general partner of the Operating Partnership. The Operating
Partnership was formed on November 15, 1993 and began operations as of December
8, 1993, the date of the Offering. At December 31, 1998, the Company had a 44.6%
general partnership interest in and was the sole managing general partner of the
Operating Partnership. At December 31, 1998, the common limited partners had a
55.4% common limited partnership interest in the Operating Partnership, with The
Irvine Company and its subsidiaries owning a 54.5% common limited partnership
interest in the Operating Partnership. In addition, at December 31, 1998, The
Irvine Company and Mr. Bren beneficially owned an aggregate of approximately
17.9% of the outstanding shares of Common Stock. The Operating Partnership's
management and operating decisions are under the unilateral control of the
Company. The Company was originally incorporated in Delaware, but on May 2,
1996, changed its state of incorporation to Maryland.
    
 
                                       10
<PAGE>   18
 
     The Company is a self-administered equity REIT engaged in the operation and
development (through the Operating Partnership) of apartment communities in
California. As of December 31, 1998, the Operating Partnership owned 65
apartment communities representing 16,439 operating apartment units and 3,039
apartment units under construction or development (collectively, the
"Properties"). Until July 31, 2020, the Operating Partnership has the exclusive
right, but not the obligation, to acquire land from The Irvine Company for
development of additional apartment communities on the Irvine Ranch. The Irvine
Company has no obligation to designate any land for sale and development of
additional apartment communities. Since 1997, the Company has acquired or
developed two off-Ranch properties (with 1,265 units) and is in the process of
developing six additional off-Ranch properties (with 1,346 units). In March
1998, the Operating Partnership and Western National Property Management
("WNPM") announced the formation of a strategic alliance that, in April 1998,
assumed all property management responsibilities for the Operating Partnership's
Southern California portfolio. The new entity, Irvine Apartment Management
Company ("IAMC"), is owned 51% by the Operating Partnership and 49% by WNPM.
 
     The address of the principal business and the principal executive offices
of the Company is 550 Newport Center Drive, Suite 300, Newport Beach, California
92660; telephone (949) 720-5500.
 
THE ACQUIROR
 
     The Acquiror in the Merger is TIC Acquisition LLC. The principal business
of the Acquiror is to merge with the Company and to be the surviving company
following the Merger. The Acquiror is capitalized with $150 million in cash and
cash equivalents. The Acquiror will obtain the balance of the Merger
Consideration to the Nonaffiliated Shareholders at or before the consummation of
the Merger. See "The Merger -- Financing; Source of Funds." The address of the
principal business and the principal executive offices of the Acquiror is 550
Newport Center Drive, Suite 900, Newport Beach, California 92660; telephone
(949) 720-2000.
 
   
     The Irvine Company is the managing member (holding the sole managing member
interest) of the Acquiror. The Irvine Company is a century old, privately held
real estate investment company primarily engaged in the long-term development of
its land in Orange County, California, and elsewhere in California. Following a
comprehensive master plan created in the 1960s, The Irvine Company is building a
series of large-scale communities on the Irvine Ranch, a 90 square mile parcel
of land located in central Orange County in Southern California. The Irvine
Company's principal business consists of the ownership, development, management
and leasing of real estate on the Irvine Ranch. The sole shareholder of The
Irvine Company is Donald Bren. In connection with the Merger, The Irvine Company
has entered into a letter agreement with the Company. See "The Merger -- Letter
Agreement with The Irvine Company" and Appendix C to this Proxy Statement.
    
 
   
     The Irvine Company, including its affiliates, is the largest Shareholder of
the Company, with beneficial ownership of approximately 17.9% of the outstanding
shares of Common Stock. The Irvine Company also beneficially owns a 54.5% common
limited partnership interest in the Operating Partnership. Pursuant to the
Miscellaneous Rights Agreement dated March 20, 1996, as amended, among the
Company, the Operating Partnership and The Irvine Company (the "Miscellaneous
Rights Agreement"), The Irvine Company has certain rights with respect to the
nomination of Directors of the Company so long as The Irvine Company and its
related parties meet certain beneficial ownership tests. The Irvine Company
currently has the right to nominate three Directors. The three current Directors
nominated by The Irvine Company are Messrs. Bren, McKee and Watson. The
Company's Articles of Incorporation provide The Irvine Company additional rights
with respect to the Company's Board of Directors, including the requirement that
certain types of transactions, such as the Merger, be approved by more than 75%
of the entire Board of Directors, which effectively requires the consent of at
least one of The Irvine Company's Director nominees. See "Certain Relationships
and Transactions -- Special Rights of The Irvine Company Under Certain
Agreements." The address of the principal business and the principal executive
offices of The Irvine Company is 550 Newport Center Drive, Suite 900, Newport
Beach, California 92660; telephone (949) 720-2000.
    
 
     Irvine Community Development Company, a Delaware corporation and
wholly-owned subsidiary of The Irvine Company ("ICDC"), holds the sole
non-managing member interest in the Acquiror. The principal
 
                                       11
<PAGE>   19
 
business of ICDC is land development and sales. The address of the principal
business and the principal executive offices of ICDC is 550 Newport Center
Drive, Suite 900, Newport Beach, California 92660; telephone (949) 720-2000.
 
   
                 BACKGROUND; PURPOSE AND EFFECTS OF THE MERGER
    
 
BACKGROUND OF THE MERGER
 
     In mid-November 1998, The Irvine Company requested Latham & Watkins and
NationsBanc Montgomery Securities LLC ("NationsBanc Montgomery") to analyze The
Irvine Company's investment alternatives. After initial consultations with
Latham & Watkins and NationsBanc Montgomery, The Irvine Company decided to
pursue more intensive analysis of its investment alternatives, including
possible business combination transactions with the Company. NationsBanc
Montgomery presented its preliminary financial analyses as well as a discussion
of issues related to potential third-party offers to The Irvine Company in
connection with a possible business combination with the Company in the form of
a report dated November 25, 1998 (the "First NationsBanc Montgomery Report").
During the period from November 25, 1998 to December 1, 1998, The Irvine Company
consulted from time to time with Latham & Watkins and NationsBanc Montgomery
regarding various courses of action. During this period, The Irvine Company also
discussed with Bank of America the availability of a special funding facility
for a potential transaction. On December 1, 1998, The Irvine Company entered
into an engagement letter with NationsBanc Montgomery (the "Acquiror Engagement
Letter").
 
     On December 1, 1998, after the close of trading on the NYSE, the Acquiror
delivered a letter (the "December 1 Letter") to the Company, the text of which
follows:
 
                              TIC Acquisition LLC
                            550 Newport Center Drive
                            Newport Beach, CA 92660
 
                                                         December 1, 1998
 
Board of Directors
Irvine Apartment Communities, Inc.
550 Newport Center Drive
Newport Beach, CA 92660
 
Gentlemen:
 
     This letter is a proposal from TIC Acquisition LLC, a wholly owned
subsidiary of The Irvine Company, to acquire all of the outstanding common
shares of Irvine Apartment Communities, Inc. in a business combination for
$32.50 per share in cash. This represents a 21% premium to yesterday's closing
price and one of the highest cash premiums ever paid for a REIT. We are
prepared, at the earliest possible time, to enter into a binding agreement which
would contain standard terms and conditions for transactions of this nature.
There will be no financing contingency.
 
     We believe that our proposal presents an excellent opportunity for
shareholders of Irvine Apartment Communities to achieve liquidity for their
shares at a significant premium to current market value. We are confident that
you will conclude that our proposal is fair and in the best interests of the
public shareholders.
 
     Attached is a press release to be issued immediately which briefly
describes our reasons for making this proposal. We look forward to your response
at your earliest convenience but in any event no later than December 31, 1998.
 
     We look forward to your careful consideration of this important proposal
and are prepared to work closely with you over the coming weeks.
 
                                          Very truly yours,
 
                                          TIC Acquisition LLC
                                          By: /s/ MICHAEL D. MCKEE
                                            ------------------------------------
                                            Michael D. McKee
                                            Authorized Officer
 
                                       12
<PAGE>   20
 
     Also on December 1, 1998, after the close of trading on the NYSE, the
Acquiror issued a press release stating that the Acquiror proposed to acquire
all of the outstanding shares of Common Stock at a price of $32.50 per share.
 
   
     The Company's Articles of Incorporation and by-laws contain provisions
establishing an Independent Directors Committee of the Board of Directors, which
must approve all transactions (including transactions under the Exclusive Land
Rights and Non-Competition Agreement dated as of November 21, 1993 by and
between The Irvine Company, the Operating Partnership, the Company and Mr. Bren,
as amended (the "Land Rights Agreement")) between the Company, on the one hand,
and The Irvine Company and its affiliates, on the other. The Independent
Directors Committee consists of five of the nine members of the Board of
Directors (Anthony M. Frank (Chairman), John F. Grundhofer, Bowen H. McCoy, John
F. Seymour, Jr. and Jack W. Peltason).
    
 
   
     On December 3, 1998, the Independent Directors Committee met to consider
what action the Board of Directors should take in response to the offer from the
Acquiror. At the meeting, Mr. Frank outlined the terms and conditions of the
December 1 Letter. Mr. Frank then indicated that it would be appropriate for the
committee to hire an investment banker to assist it in reviewing the proposal
set forth in the December 1 Letter and in formulating a response. After
discussion, the Independent Directors Committee authorized Messrs. Frank and
McCoy to interview a number of candidates.
    
 
     On December 4, 1998, Messrs. Frank and McCoy met with Davis Polk, who had
acted as counsel to the Company, the Board of Directors and the Independent
Directors Committee since the Offering, for the purpose of interviewing
candidates for investment banker to the Board of Directors. Presentations were
made by four investment banks invited by the Independent Directors Committee
based upon their general reputation and experience in REIT mergers and
acquisitions, "going private" transactions and similar matters.
 
     Also on December 4, 1998, Mr. Frank, on behalf of the Independent Directors
Committee, delivered to the Acquiror a letter acknowledging receipt of the
December 1 Letter and stating that the Board of Directors and the Independent
Directors Committee intended to review the Acquiror's proposal and respond in
due course.
 
   
     On December 8, 1998, by unanimous written consent, the Board of Directors
established a Special Committee consisting of Messrs. Frank, McCoy, Grundhofer
and Seymour, four Directors of the Company who are not employees of the Company
or The Irvine Company and are not affiliates of The Irvine Company or its
affiliates (other than the Company and its subsidiaries). The Special Committee
was delegated the full power and authority of the Board of Directors to
determine what actions with respect to the proposal set forth in the December 1
Letter would be in the best interests of the Nonaffiliated Shareholders,
including whether to consummate or reject the proposal set forth in the December
1 Letter or seek modification of any of its terms. The Board of Directors
authorized the Special Committee to evaluate and negotiate, if appropriate, the
terms of the proposal set forth in the December 1 Letter with the Acquiror and
its representatives, to consider and negotiate the terms of transactions other
than the proposal set forth in the December 1 Letter as it deemed appropriate,
and to make a recommendation to the full Board of Directors concerning the
proposal set forth in the December 1 Letter. The Special Committee was also
authorized to retain legal advisors and investment bankers to assist it in
discharging these duties and to determine appropriate compensation for its
members. Other than the legal and financial advisors engaged by and on behalf of
the Special Committee, no outside parties were engaged to negotiate on behalf of
the Nonaffiliated Shareholders (the Special Committee served this purpose).
    
 
     Also on December 8, 1998, the Special Committee held its initial meeting.
At the meeting, the Special Committee elected Messrs. Frank and McCoy as
Co-Chairmen of the Special Committee and retained Davis Polk as legal counsel in
connection with the Special Committee's evaluation and negotiation of the
proposal set forth in the December 1 Letter and any alternative transactions.
The Special Committee also retained Piper & Marbury L.L.P. and Morris, James,
Hitchens & Williams for the purpose of consultation with regard to Maryland and
Delaware law, respectively. The Special Committee, along with Davis Polk,
reviewed the presentations received from the four investment banks and discussed
their relative merits. After further deliberations, the Special Committee
engaged Morgan Stanley as its investment banker to analyze and
 
                                       13
<PAGE>   21
 
   
provide advice with respect to the proposal set forth in the December 1 Letter
and with respect to any other strategic transaction or decision which might be
considered by the Special Committee whether or not involving the Acquiror and to
assist in any negotiations with respect to such transactions. For descriptions
of the terms of the engagement of Morgan Stanley, see "-- Opinion of the
Financial Advisor for the Special Committee." In light of the extensive time
commitments and travel anticipated in connection with negotiating a transaction,
the Special Committee also determined compensation for its members as follows:
In addition to the Company's normal fees for attendance at meetings and
reimbursement of expenses, Messrs. Grundhofer and Seymour will each receive
$20,000 for their service as members of the Special Committee through March 31,
1999 and Messrs. Frank and McCoy will each receive $50,000 for their service as
Co-Chairmen of the Special Committee through March 31, 1999.
    
 
     On December 22, 1998, the Compensation Committee of the Board of Directors
(consisting of Messrs. McCoy and Seymour) met with its employee benefits
consultant, Frederic W. Cook & Co., Inc., to discuss appropriate arrangements
for preventing the loss of key employees in light of uncertainty as to the
Company's future status. The Compensation Committee's employee benefits
consultant analyzed the Company's current compensation arrangements for senior
management and other key employees and presented its recommendations relating to
appropriate retention arrangements. The Compensation Committee ultimately
determined that these retention-related matters were integrally related to the
proposal set forth in the December 1 Letter of the Acquiror, and therefore, it
would be more appropriate for the Special Committee to address and decide these
issues.
 
   
     Later on December 22, 1998, the Special Committee met with Davis Polk and
Morgan Stanley. The Special Committee discussed the retention issues considered
by the Compensation Committee and authorized the implementation of certain
measures aimed at the retention of key employees, all as more fully described
under "-- Interests of Certain Persons in the Merger; Certain Company Benefit
Plans." Davis Polk then outlined the duties of the Special Committee under
Maryland law and aspects of federal securities law. In addition, the Special
Committee and its advisors considered the structural impediments contained in
the Company's Articles of Incorporation (including ownership limitations and
provisions that effectively require the consent of The Irvine Company before the
Company can engage in certain transactions (including sale or liquidation of the
Company) or amend the Company's Articles of Incorporation to change these
provisions), as well as The Irvine Company's stated desire not to consider
offers to sell its position in the Company, which made it impracticable for the
Company to solicit a third-party bidder. The Special Committee decided to
negotiate the highest price and best terms possible for a transaction with the
Acquiror and then determine whether it was preferable to engage in such
transaction or to adopt the alternative of saying "no" to such transaction and
to continue to operate the Company as a public company for the benefit of the
Shareholders. Morgan Stanley then reviewed certain preliminary financial and
comparative analyses based in part on information it had received from the
Company in the prior week. Morgan Stanley noted that its analyses were
preliminary and subject to revision.
    
 
   
     At the request of the Special Committee and the Acquiror, on December 30,
1998, Morgan Stanley and NationsBanc Montgomery met to discuss their respective
valuation analyses. Also present were representatives of Merrill Lynch Equity
Research, a consultant to The Irvine Company. Morgan Stanley presented its
preliminary valuation analyses. In addition, Morgan Stanley delivered a letter
requesting disclosure from NationsBanc Montgomery, the Acquiror and The Irvine
Company of all material facts relating to the use or value of the assets in
question and to the market value of the subject transaction. NationsBanc
Montgomery presented its financial analyses to Morgan Stanley in connection with
the proposed business combination in the form of a report dated December 30,
1998 (the "Second NationsBanc Montgomery Report"). During the meeting, a
discussion ensued about the Company's October 30, 1998 Board of Directors
meeting pertaining to the 1999 business plan of the Company (the "1999 Business
Plan"). At that Board meeting, members of management of the Company had
discussed management's 1999 Business Plan and the assumptions underlying it.
Following that presentation, Mr. Bren had indicated that he believed that
certain assumptions in management's proposed 1999 Business Plan were too
conservative in light of existing conditions and expected market conditions in
1999 and beyond. Prior to the meeting, Mr. Bren had presented information that
suggested a recent rental growth rate for certain competitive properties in the
range of 12% and that
    
 
                                       14
<PAGE>   22
 
management's assumed 1999 rental growth rate of 5% should be reviewed.
Management disagreed with the information presented and the conclusions reached
by Mr. Bren. There followed considerable discussion among the Directors and
management of what growth assumptions and targets should be established for the
1999 Business Plan. Upon conclusion of this discussion, the Board of Directors
(including Mr. Bren) unanimously approved management's 1999 Business Plan as a
base case and it was agreed that management would undertake to develop an
additional 1999 Business Plan which would reflect actual growth rates in the
relevant competitive California markets. It was also agreed by management and
the Board of Directors that, in any case, the Company would commit to meet or
exceed the competitive market in 1999 with respect to rental growth and
occupancy rates. It was further agreed that management would work with
representatives of The Irvine Company and independent consultants to agree on
the composition of properties comprising appropriate competitive markets.
Because of the Acquiror's acquisition proposal, the additional 1999 Business
Plan has not yet been undertaken.
 
     In connection with the ongoing discussions, on December 31, 1998, the
Acquiror sent a letter to the Special Committee extending the time for the
Special Committee to respond to the Acquiror's proposal from December 31, 1998
to January 18, 1999.
 
     On January 7, 1999, NationsBanc Montgomery delivered to Morgan Stanley
certain materials pertaining to the Company as requested by Morgan Stanley in
its December 30, 1998 letter. In a letter dated January 12, 1999 (the "Third
NationsBanc Montgomery Report" and, together with the First NationsBanc
Montgomery Report and the Second NationsBanc Montgomery Report, the "NationsBanc
Montgomery Reports"), NationsBanc Montgomery provided additional detail and
documentation in support of the Acquiror's offer of $32.50 per share.
 
   
     By mutual agreement, on January 13, 1999, Morgan Stanley and NationsBanc
Montgomery met to discuss outstanding issues related to valuation assumptions,
including rental growth rates, liquidity or control discounts, the valuation of
the Land Rights Agreement, capitalization rates, and the asset and equity
discount rates. Morgan Stanley reiterated its position that as a result of its
analyses, Morgan Stanley continued to be of the view that the Acquiror's offer
undervalued the Company.
    
 
   
     On January 14, 1999, the Special Committee met with Morgan Stanley and
Davis Polk and reviewed the discussions that had occurred up until that point
and outlined the major differences between NationsBanc Montgomery's and Morgan
Stanley's valuations, including certain rental growth assumptions,
capitalization rates, and the asset and equity discount rates. Morgan Stanley
then provided to the Special Committee a summary of its material analyses.
Morgan Stanley noted that its analyses were preliminary and subject to revision.
No resolution was reached on the valuation assumption differences.
    
 
   
     On January 18 and 19, 1999, Messrs. Frank and McCoy arranged to meet with
Messrs. Bren and McKee, together with their respective investment bankers, to
discuss valuation issues. No progress was made at these meetings. Following the
meeting on January 19, 1999, Messrs. Bren and McKee met with Messrs. Frank and
McCoy and indicated that, as a result of the ongoing discussions, the Acquiror
might be willing to increase its offer to $33.50 per share. Messrs. Frank and
McCoy responded that they would discuss the matter with the full Special
Committee.
    
 
     On January 20, 1999, the Special Committee met with its advisors to discuss
the course of the negotiations. After deliberation, the Special Committee
concluded that a price of $33.50 per share would not be satisfactory. The
Special Committee instructed Messrs. Frank and McCoy to communicate to Mr. Bren
that the Special Committee would not support a price of $33.50 per share.
Messrs. Frank and McCoy telephoned Mr. Bren informing him of the Special
Committee's conclusion. Mr. Bren indicated that he would consider the matter and
proposed a meeting with Messrs. Frank and McCoy on January 21, 1999.
 
     On January 21, 1999, Mr. Bren telephoned Messrs. Frank and McCoy and stated
that, as a final offer, the Acquiror was willing to raise its offer to $34.00
per share. Messrs. Frank and McCoy indicated that they would communicate the
revised offer to the Special Committee.
 
     Later on January 21, 1999, the Special Committee met with Davis Polk and
Morgan Stanley. Mr. McCoy indicated that the Acquiror had agreed to raise its
offer to $34.00 per share. Messrs. Frank and
 
                                       15
<PAGE>   23
 
   
McCoy also indicated that Mr. Bren urged them to consider this proposal
carefully with the full Special Committee and stated that the time had come when
the transaction should either be concluded or discussions terminated. Messrs.
Frank and McCoy advised the members of the Special Committee that, based on the
history and status of the negotiations with the Acquiror and their assessment of
the Acquiror, they believed that $34.00 per share was the final and best offer
that would be received from the Acquiror. In response to questions from members
of the Special Committee, Morgan Stanley indicated that its preliminary view was
\that it would be able to deliver a fairness opinion to the Board of Directors
with respect to a transaction at $34.00 per share.
    
 
     Later on January 21, 1999, Messrs. Frank and McCoy telephoned Mr. Bren and
stated that the Special Committee would likely recommend acceptance of a
transaction at a price of $34.00 per share subject to final approval by the
Special Committee, receipt by the Special Committee of a written opinion from
Morgan Stanley that such consideration would be fair from a financial point of
view to the Nonaffiliated Shareholders, approval by the Board of Directors and
agreement on the terms of a definitive merger agreement.
 
     In subsequent conversations between the parties on the same day, it became
evident that the Acquiror's offer did not include the continued payment of
quarterly dividends to the Shareholders, whereas the Special Committee had
contemplated the continued payment of regular quarterly dividends until the
completion of the Merger. The Special Committee concluded that it was not
prepared to recommend a transaction that did not allow for the continued payment
of regular quarterly dividends.
 
     On January 26, 1999, the Acquiror delivered a letter to the Company stating
that in light of nearly two months of negotiations between the parties and the
upcoming regularly scheduled February 1, 1999 meeting of the Board of Directors,
at which declaration of quarterly dividends was scheduled to be considered, the
Acquiror believed that the parties should come to a prompt resolution regarding
the outstanding issues. The Acquiror set a deadline of 5:00 p.m. on February 1,
1999 for the resolution of all open issues.
 
   
     The material open issues were: (i) whether the Company would continue to be
able to pay regular quarterly dividends; (ii) financing representations of the
Acquiror; (iii) the right of the Special Committee to change its recommendation
with respect to the Merger; and (iv) the scope of covenants restricting the
conduct of the Company's business pending the Merger.
    
 
   
     On January 27, 1999, the Special Committee met with Davis Polk and Morgan
Stanley. Pursuant to earlier discussions between members of the Special
Committee and Mr. Bren, the Special Committee instructed its counsel to attempt
to resolve as many of the open issues as possible. The Acquiror instructed its
counsel similarly. During the period from January 28, 1999 through January 31,
1999, Davis Polk continued to negotiate the terms of a definitive merger
agreement with Latham & Watkins. No material progress was made.
    
 
   
     By mutual agreement, on January 31, 1999, Messrs. Frank, McCoy, Bren and
McKee, with their respective investment bankers and counsel, met in an attempt
to resolve the major outstanding issues. The parties met for several hours, but
no agreement was reached on these issues.
    
 
   
     On the morning of February 1, 1999, the Special Committee met prior to the
Company's regularly scheduled Board of Directors and Committee meetings. The
Special Committee and Davis Polk then met with Messrs. Bren and McKee and Latham
& Watkins. Thereafter, the Special Committee and Mr. Bren met and resolved all
outstanding issues, including the issue of the continued payment of regular
quarterly dividends, and reached an agreement in principle, subject to formal
approval by the Special Committee and the entire Board of Directors and receipt
by the Board of Directors of the Morgan Stanley fairness opinion.
    
 
   
     Later on February 1, 1999, the Special Committee held a meeting with Davis
Polk. Davis Polk reviewed the principal terms and conditions of the Merger
Agreement and outlined to members of the Special Committee the details of their
duties. Morgan Stanley had previously indicated its view that it would be able
to deliver an opinion that the $34.00 in cash per share to be received by the
Nonaffiliated Shareholders in the Merger was fair from a financial point of view
to such holders. See "-- Opinion of the Financial Advisor for the Special
Committee." Subject to receipt of Morgan Stanley's fairness opinion, after full
discussion, the Special Committee unanimously determined that the Merger
Proposal was fair to, and in the best interests of,
    
 
                                       16
<PAGE>   24
 
the Nonaffiliated Shareholders. Subject to receipt of Morgan Stanley's fairness
opinion, after full discussion, the Special Committee unanimously adopted
resolutions (i) recommending to the Board of Directors that it approve and adopt
the Merger Proposal and (ii) recommending to the Shareholders that they vote to
approve and adopt the Merger Proposal.
 
   
     Immediately following the Special Committee meeting, the Board of Directors
and the Independent Directors Committee met to consider the Merger Proposal.
Davis Polk outlined to the Board of Directors its duties. Messrs. Bren, McKee
and Watson then departed the meeting temporarily to permit Directors William H.
McFarland and Jack W. Peltason, neither of whom had served on the Special
Committee, a full opportunity to ask questions and obtain information to satisfy
themselves that the Merger Proposal was fair to, and in the best interests of,
the Nonaffiliated Shareholders. Messrs. Bren, McKee and Watson then rejoined the
meeting and Davis Polk reviewed the principal terms and conditions of the Merger
Agreement. Morgan Stanley then reviewed the financial terms of the Merger and
Morgan Stanley's financial analyses and delivered its oral opinion, subsequently
confirmed in writing as of February 1, 1999, and subject to the various
considerations set forth in its opinion, that the consideration to be received
by the Nonaffiliated Shareholders pursuant to the Merger Agreement is fair from
a financial point of view to such holders. In response to questions from the
Directors, Morgan Stanley expressed its view, based on the circumstances then
existing and as discussed with the Special Committee, that the proposed
transaction at $34.00 per share was a superior alternative for the Nonaffiliated
Shareholders as compared to continuing to hold their shares of Common Stock.
Some of the circumstances and issues Morgan Stanley discussed with the Special
Committee included: (a) the lack of other alternatives to the proposed
transaction based on the stated desire of The Irvine Company not to consider
offers to sell its position in the Company, (b) the possibility, based on
conversations with The Irvine Company relative to land pricing for apartment
community uses versus alternative uses, that actual land for multi-family
development made available to the Company in the future by The Irvine Company
might be substantially less than the assumptions in the Company's business plan,
(c) the potential inability of the Company to attract and retain qualified
senior management personnel if the Merger were not consummated and (d) the
analyses performed by Morgan Stanley in connection with rendering its fairness
opinion. Finally, Morgan Stanley indicated that failure to consummate the Merger
would likely be viewed by investors as having adversely affected the
relationship between the Company and The Irvine Company, and therefore the price
of the Common Stock would likely be affected. The Special Committee then
recommended that the Board of Directors and the Independent Directors Committee
each approve the Merger Proposal. After full discussion, the Board of Directors
and the Independent Directors Committee each unanimously determined that the
Merger Proposal was fair to, and in the best interests of, the Nonaffiliated
Shareholders, and adopted resolutions to approve and adopt the Merger Proposal
and to recommend that the Shareholders vote to approve and adopt the Merger
Proposal.
    
 
   
     Later on February 1, 1999, the Company and the Acquiror entered into a
definitive merger agreement, a copy of which is attached as Appendix A to this
Proxy Statement. The Company and The Irvine Company also entered into a letter
agreement, a copy of which is attached as Appendix C to this Proxy Statement.
    
 
     On February 2, 1999, prior to the open of trading on the NYSE, the Company
and the Acquiror issued a joint press release announcing that they had signed a
definitive merger agreement under which, upon the merger of the Company into the
Acquiror, the Shareholders would receive $34.00 in cash per share.
 
THE ACQUIROR'S PURPOSE; STRUCTURE OF THE MERGER
 
   
     Purpose. The purpose of the Merger is for the Acquiror and The Irvine
Company to acquire the assets of the Company, while providing the Nonaffiliated
Shareholders with the opportunity to liquidate their investment in the Company
for cash at a significant premium to market prices for the Common Stock prior to
the announcement of the Acquiror's acquisition offer. The Acquiror and The
Irvine Company decided to make a proposal to acquire the Company on December 1,
1998 because of their determination that the Company's REIT structure was
disadvantageous for real estate development in the current economic environment.
    
 
     Alternatives. Prior to reaching their decision to pursue the Merger, the
Acquiror and The Irvine Company considered various alternatives to the Merger,
including: (i) a two-step acquisition of the Company, consisting of a first step
tender offer and a second step merger; (ii) a purchase of the Company's general
 
                                       17
<PAGE>   25
 
partnership interest in the Operating Partnership; and (iii) continuing The
Irvine Company's existing ownership interest in the Company.
 
   
     The primary benefit to the Acquiror and The Irvine Company of the two-step
acquisition alternative was the potential to consummate an acquisition of the
Company in a short time period and, potentially, avoid the time and expense of
seeking Shareholder approval at a meeting of the Shareholders. The Acquiror and
The Irvine Company ultimately rejected this alternative, however, primarily
because they believed that the two-step structure would have increased the
federal income tax cost of the Merger. The Acquiror and The Irvine Company
believed that, under the two-step structure, the Acquiror's acquisition of
shares in the first-step tender offer would have likely caused the Company to
fail to qualify as a REIT for the 1999 tax year, thus triggering significant tax
liability.
    
 
     The Acquiror and The Irvine Company considered the alternative of
purchasing the Company's general partnership interest in the Operating
Partnership because it offered many of the advantages of the Merger, including
favorable tax consequences to the Surviving Company. The Acquiror and The Irvine
Company ultimately rejected this alternative, however, because it presented no
material benefits relative to the Merger structure and would result in the
Company surviving as a public entity without any significant operations.
 
     The Acquiror and The Irvine Company also considered maintaining The Irvine
Company's current investment in the Company. The Acquiror and The Irvine Company
rejected this alternative due to the potential benefits (discussed below) of the
Merger.
 
   
     Benefits and Detriments of the Merger to the Acquiror and The Irvine
Company. The primary benefits of the Merger to the Acquiror and The Irvine
Company are the following:
    
 
   
     - enabling The Irvine Company to manage directly the Operating Partnership
       and thereby integrate The Irvine Company's apartment activities with its
       other activities in achieving its master plan for the Irvine Ranch;
    
 
   
     - increasing The Irvine Company's flexibility to retain capital by
       eliminating the need to comply with the distribution requirements imposed
       by tax laws applicable to REITs;
    
 
   
     - reducing overall operational and administrative costs by eliminating the
       costs associated with public ownership of the Company (recognizing that
       the Operating Partnership and IAC Capital Trust will continue to be
       reporting companies), including the costs of investor relations, public
       reporting, mailings of dividends to shareholders, directors' and
       officers' liability insurance, directors' fees, administration of the
       Company's treasury department, legal expenses and consultant fees, which
       the Acquiror estimates will result in total annual cost savings in excess
       of $2.5 million; and
    
 
   
     - providing tax benefits associated with increasing the potential
       depreciation of the assets acquired by the Acquiror in the Merger.
    
 
     The detriments of the completion of the Merger to the Acquiror and The
Irvine Company will be (i) the significant cash outlay by the Acquiror required
to complete the Merger and (ii) the Surviving Company's inability to use
publicly traded securities as acquisition capital.
 
   
     No Offer Made to Holders of Limited Partner Interests in the Operating
Partnership. Because the Acquiror's current intention is to retain the
outstanding preferred equity of the Operating Partnership, no offer has been
made by the Acquiror or The Irvine Company to purchase the preferred equity.
Because The Irvine Company and its subsidiaries hold all of the Common L.P.
Units in the Operating Partnership (other than the 0.7% Common L.P. Unit
interest held by Stonecrest Village Company, LLC ("Stonecrest") (a limited
liability company indirectly wholly owned by Mr. Bren) and the 0.2% Common L.P.
Unit interest held by TRC, no offer has been made to holders of the Operating
Partnership's common partnership interests. However, see "Certain Relationships
and Transactions -- Agreement with Messrs. Thompson, Dorfman and Hughes."
    
 
                                       18
<PAGE>   26
 
RECOMMENDATION OF THE SPECIAL COMMITTEE AND THE BOARD OF DIRECTORS; FAIRNESS OF
THE MERGER
 
     At a meeting held on February 1, 1999, the Special Committee unanimously
determined (i) to recommend that the Board of Directors approve and adopt the
Merger Proposal and that the Board of Directors recommend to the Shareholders
that they vote to approve and adopt the Merger Proposal; (ii) to recommend to
the Shareholders that they vote to approve and adopt the Merger Proposal; and
(iii) that the terms of the Merger Proposal are fair to, and in the best
interests of, the Nonaffiliated Shareholders. At a meeting of the Board of
Directors held on February 1, 1999, at which all of the Directors were present,
the Board of Directors, based on the unanimous recommendation of the Special
Committee, unanimously (x) approved and adopted the Merger Proposal; (y)
determined to recommend to the Shareholders that they vote to approve and adopt
the Merger Proposal; and (z) determined that the terms of the Merger Proposal
are fair to, and in the best interests of, the Nonaffiliated Shareholders. See
"-- Background of the Merger" and "-- The Acquiror's Purpose; Structure of the
Merger."
 
   
     The Special Committee. In determining to recommend to the Board of
Directors that it approve and adopt the Merger Proposal, and in determining that
the Merger Proposal was fair to, and in the best interests of, the Nonaffiliated
Shareholders, the Special Committee considered the following factors, each of
which, in the Special Committee's view, supported the Special Committee's
determination to recommend the Merger Proposal:
    
 
   
     - the opinion of Morgan Stanley as to the fairness from a financial point
       of view to the Nonaffiliated Shareholders of the $34.00 per share to be
       received by the Nonaffiliated Shareholders, and the analyses presented to
       the Special Committee by Morgan Stanley (see "-- Opinion of the Financial
       Advisor for the Special Committee");
    
 
   
     - the structural impediments contained in the Company's Articles of
       Incorporation (including ownership limitations and provisions that
       effectively require the consent of The Irvine Company before the Company
       can engage in certain transactions (including sale or liquidation of the
       Company) or amend the Company's Articles of Incorporation to change these
       provisions), as well as The Irvine Company's stated desire not to
       consider offers to sell its position in the Company, making it
       impracticable for the Company to solicit a third-party bidder (see
       "Certain Relationships and Transactions -- Special Rights of The Irvine
       Company Under Certain Agreements");
    
 
   
     - the fact that $34.00 per share was within the range of net asset value
       valuations for real estate transactions presented by Morgan Stanley (see
       "-- Opinion of the Financial Advisor for the Special Committee -- Net
       Asset Value");
    
 
   
     - the history of the negotiations with respect to the Merger Proposal that,
       among other things, led to an increase in the Acquiror's offer from
       $32.50 to $34.00 per share, and the belief of the Special Committee that
       $34.00 per share was the best price that could be obtained from the
       Acquiror (or any other party, primarily because of the above-referenced
       structural impediments);
    
 
     - the fact that the $34.00 per share to be received by Nonaffiliated
       Shareholders in the Merger represented a premium of approximately 24.2%
       to the closing price of the Common Stock on the NYSE of $27.375 on
       December 1, 1998, the day the Acquiror made its initial merger proposal
       to the Company's Board of Directors, and that $34.00 per share exceeds
       the all-time high price of the Common Stock ($33.50 per share);
 
   
     - the fact that the Company could continue to declare regular quarterly
       dividends (although the record dates for the second and third quarter
       1999 quarterly dividends may not be earlier than June 15, 1999 and
       September 15, 1999, respectively);
    
 
     - the terms and conditions of the Merger Agreement, including the price of
       $34.00 in cash per share, the scope of the parties' representations,
       warranties, covenants and agreements, the limited number of conditions to
       the obligations of the Acquiror and the rights of the Special Committee
       and the Board of Directors, consistent with their duties, to withdraw or
       modify their respective recommendations; and
 
                                       19
<PAGE>   27
 
     - the Shareholder approval condition to the consummation of the Merger that
       effectively requires the affirmative vote of approximately 60.9% of the
       shares held by the Nonaffiliated Shareholders in favor of the Merger
       Proposal.
 
     In light of the number and variety of factors the Special Committee
considered in connection with its evaluation of the Merger Proposal, the Special
Committee did not find it practicable to assign relative weights to the
foregoing factors; accordingly, the Special Committee did not do so.
 
   
     The Special Committee also considered the fact that, although no third
party offers were actively solicited, from the time of the Acquiror's initial
acquisition proposal which was publicly announced on December 1, 1998 through
the approval of the Merger by the Special Committee and the Board of Directors
on February 1, 1999, neither the Company nor the Special Committee received any
alternative offers (taking into account the potential deterrent effect of the
structural impediments discussed above). The Special Committee also considered
Morgan Stanley's view that, in response to questions from the Special Committee,
based on the circumstances and issues discussed with the Special Committee,
$34.00 per share was a superior alternative for the Nonaffiliated Shareholders
as compared to continuing to hold their shares of Common Stock. See
"-- Background of the Merger."
    
 
   
     Nonaffiliated Shareholders should be aware that, following the Merger, they
will cease to participate in future earnings or growth, if any, of the Company
or benefit from any increases, if any, in the value of the Company, and they no
longer will bear the risk of any decreases in the value of the Company. The
Special Committee considered these factors in making its recommendations, but
concluded that these factors were outweighed by the positive factors described
above.
    
 
   
     The Special Committee consulted with Morgan Stanley during the course of
Morgan Stanley's work in connection with its analysis of the Company and
evaluation of the proposed merger. Although Morgan Stanley provided advice to
the Special Committee, the decision to enter into the Merger Agreement and to
accept the consideration to be received in the Merger was solely that of the
Special Committee.
    
 
   
     Shareholders should note that no liquidation analysis was prepared,
primarily because of the structural impediments described above and The Irvine
Company's stated desire not to consider offers to sell its position in the
Company.
    
 
     The Special Committee believes that the Merger Proposal is procedurally
fair because: (i) the Special Committee consisted of disinterested Directors
appointed to represent the interests of, and to negotiate on an arm's-length
basis with the Acquiror on behalf of, the Nonaffiliated Shareholders; (ii) the
Special Committee retained and was advised by outside legal counsel; (iii) the
Special Committee retained Morgan Stanley as financial advisor to assist it in
evaluating the proposed merger; and (iv) the Merger Agreement contains as a
condition to the consummation of the Merger that the holders of a number of
shares of Common Stock (excluding the shares held by the Acquiror and its
affiliates) representing a majority of the total number of outstanding shares of
Common Stock vote to approve the Merger (effectively requiring the affirmative
vote of approximately 60.9% of the shares held by the Nonaffiliated Shareholders
in favor of the Merger). In addition, the Special Committee believes that the
Merger Proposal is procedurally fair because the price of $34.00 per share and
the other terms and conditions of the Merger Agreement resulted from active
arm's-length bargaining between the Special Committee and the Acquiror.
 
     The Board of Directors. The Board of Directors, at its February 1, 1999
meeting, considered the unanimous recommendation of the Special Committee, as
well as the factors (enumerated above) considered by the Special Committee, and
unanimously determined that the Merger Proposal is fair to, and in the best
interests of, the Nonaffiliated Shareholders, approved and adopted the Merger
Proposal, and recommended that the Shareholders vote to approve and adopt the
Merger Proposal.
 
   
BENEFITS AND DETRIMENTS TO NONAFFILIATED SHAREHOLDERS
    
 
   
     The Company, the Acquiror and The Irvine Company believe that the Merger
will result in the following benefits to the Nonaffiliated Shareholders: (i)
realizing the value of their investment in the Company in cash at a price which
is higher than the highest historical trading price of the Common Stock and
which represents
    
 
                                       20
<PAGE>   28
 
   
a substantial premium to the market price for the Common Stock prior to the
announcement of the Acquiror's offer to acquire the Common Stock and (ii)
eliminating the risk of a decline in the value of their investment in the
Company.
    
 
   
     The primary detriment to Nonaffiliated Shareholders of the completion of
the Merger is that they will cease to have any ownership interest in the Company
and will cease to participate in future earnings or growth, if any, of the
Company or benefit from any increases, if any, in the value of the Company. In
addition, the Nonaffiliated Shareholders will recognize a taxable gain upon the
completion of the Merger.
    
 
OPINION OF THE FINANCIAL ADVISOR FOR THE SPECIAL COMMITTEE
 
     The Special Committee retained Morgan Stanley to act as the Company's
financial advisor with respect to the proposed merger and related matters, based
on Morgan Stanley's qualifications, reputation and expertise. At a meeting of
the Board of Directors on February 1, 1999, Morgan Stanley delivered its oral
opinion to the Board of Directors, subsequently confirmed in writing, that as of
such date, and subject to the various considerations set forth in its opinion
(the "Opinion"), the consideration to be received by the Nonaffiliated
Shareholders pursuant to the Merger Agreement is fair from a financial point of
view to such holders.
 
   
     THE FULL TEXT OF THE WRITTEN OPINION OF MORGAN STANLEY DIRECTED TO THE
BOARD OF DIRECTORS AND DATED AS OF FEBRUARY 1, 1999, WHICH SETS FORTH THE
ASSUMPTIONS MADE, MATTERS CONSIDERED, PROCEDURES FOLLOWED AND LIMITATIONS OF THE
REVIEW UNDERTAKEN IN CONNECTION WITH THE OPINION, IS ATTACHED AS APPENDIX B TO
THIS PROXY STATEMENT AND IS INCORPORATED HEREIN BY REFERENCE. MORGAN STANLEY'S
OPINION ADDRESSES ONLY THE FAIRNESS OF THE CONSIDERATION TO BE RECEIVED BY THE
NONAFFILIATED SHAREHOLDERS PURSUANT TO THE MERGER AGREEMENT FROM A FINANCIAL
POINT OF VIEW TO SUCH SHAREHOLDERS. THE OPINION OF MORGAN STANLEY IS DIRECTED TO
THE BOARD OF DIRECTORS FOR ITS USE IN CONNECTION WITH ITS CONSIDERATION OF THE
MERGER PROPOSAL AND IS NOT INTENDED TO BE, AND DOES NOT CONSTITUTE, A
RECOMMENDATION TO ANY SHAREHOLDER OF THE COMPANY AS TO HOW SUCH SHAREHOLDER
SHOULD VOTE WITH RESPECT TO THE MERGER PROPOSAL. THE SUMMARY OF THE OPINION OF
MORGAN STANLEY SET FORTH HEREIN IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE
FULL TEXT OF THE OPINION. THE NONAFFILIATED SHAREHOLDERS ARE URGED TO, AND
SHOULD, READ THE OPINION CAREFULLY AND IN ITS ENTIRETY.
    
 
     In connection with rendering its Opinion, Morgan Stanley, among other
things:
 
   
<TABLE>
      <S>  <C>
      -    reviewed certain publicly available financial statements and
           other information of the Company;
      -    reviewed certain internal financial statements and other
           financial and operating data concerning the Company prepared
           by the management of the Company;
      -    reviewed certain financial projections prepared by the
           management of the Company;
      -    discussed the past and current operations and financial
           condition and the prospects of the Company with senior
           executives of the Company;
      -    reviewed the reported prices and trading activity for the
           Common Stock;
      -    compared the financial performance of the Company and the
           prices and trading activity of the Common Stock with that of
           certain other comparable publicly-traded companies and their
           securities;
      -    reviewed the financial terms, to the extent publicly
           available, of certain comparable transactions;
      -    participated in discussions and negotiations between the
           Company and the Acquiror and The Irvine Company and their
           respective financial and legal advisors;
      -    reviewed the draft Merger Agreement and certain related
           documents;
      -    reviewed and considered the governance provisions relating
           to the Company and the Operating Partnership;
      -    considered the Company's ability to execute its business
           plan if the Merger were not consummated; and
      -    performed such other analyses and considered such other
           factors as Morgan Stanley deemed appropriate.
</TABLE>
    
 
                                       21
<PAGE>   29
 
     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 Opinion. With respect to the
financial projections prepared by the management of the Company, Morgan Stanley
assumed that such information had been reasonably prepared on bases reflecting
the best currently available estimates and judgments of the future financial
performance of the Company. Morgan Stanley did not make any independent
valuation or appraisal of the assets or liabilities of the Company, nor was
Morgan Stanley provided with any such appraisals. The Opinion is necessarily
based on economic, market and other conditions as in effect on, and the
information made available to Morgan Stanley as of, February 1, 1999. In
arriving at its Opinion, Morgan Stanley was not authorized to solicit, and did
not solicit interest from, any other party, with respect to the acquisition of,
or any businesses combination or other extraordinary transaction involving, the
Company, nor did Morgan Stanley negotiate with any party other than the Acquiror
and The Irvine Company in connection with a transaction involving the Company.
 
   
     The following is a summary of the material financial and comparative
analyses performed by Morgan Stanley in connection with providing the Opinion to
the Board of Directors on February 1, 1999. Certain of these summaries of
financial analyses include information presented in tabular format. In order to
understand fully the financial analyses used by Morgan Stanley, the tables must
be read together with the text of each summary. The tables alone do not
constitute a complete description of the financial analyses.
    
 
   
     Stock Trading History. Morgan Stanley reviewed the historical trading
prices for the Common Stock and noted that since the initial price in the
Offering of $17.50 on December 8, 1993, the Common Stock recorded an all-time
high of $33.50 per share on October 8, 1997. Morgan Stanley noted that, as of
December 1, 1998, the proposed Merger Consideration of $34.00 per share exceeded
the all-time high closing price of the Common Stock.
    
 
   
     Morgan Stanley reviewed the average of the daily closing prices of the
Common Stock from January 1, 1998 through December 1, 1998, the date of the
Acquiror's offer. Morgan Stanley also reviewed the premium obtained by computing
the percentage excess of the $34.00 offer price over the average closing price
of the Common Stock for the following periods ended December 1, 1998.
    
 
   
<TABLE>
<CAPTION>
               TIME PERIOD                    AVERAGE       OFFER PRICE
        (ENDED DECEMBER 1, 1998)           CLOSING PRICE      PREMIUM
        ------------------------           -------------    -----------
<S>                                        <C>              <C>
  January 1, 1998........................     $28.91           17.6%
  Last 10 Trading Days...................     $27.29           24.6%
  Last Two Months........................     $26.24           29.6%
  Last Six Months........................     $27.26           24.7%
</TABLE>
    
 
   
     Net Asset Value. Morgan Stanley estimated the net asset value of the
Company based on a property-by-property analysis. For stabilized properties, a
range of capitalization rates based on recent, comparable market transactions
was applied to estimates of 1999 net operating income, based on various rent
growth scenarios as used in the discounted cash flow analyses described below.
Properties under development were valued using a discounted cash flow analysis
through the stabilization period using a range of discount rates ranging from
12% to 16% and applying a range of capitalization rates ranging from 7.25% to
8.25% to estimate terminal value. The gross value of the assets was reduced by
the estimated value of the outstanding debt and preferred stock of the Company
to arrive at a net asset value range of $33.00 to $40.00 per fully diluted share
of Common Stock, as compared to the offer price of $34.00 per share.
    
 
   
     Discounted Cash Flow. Morgan Stanley performed discounted cash flow
analyses of the Company based upon projections provided by the Company and a
range of rental growth assumptions ranging from 5% to 9%, as compared to the
Company's assumed growth rate of 5% in its projections. See "Certain Financial
Projections of the Company." These discounted cash flow analyses may be
considered to represent continuation analyses for the Company. Morgan Stanley
performed three separate discounted cash flow analyses at varying rental growth
rates: dividend discount, free cash flow, and leveraged recapitalization. The
dividend discount model discounted dividends per share for the years 1999
through 2003, using discount rates reflecting an expected equity total return
and applying terminal multiples on 2004 funds from operations
    
 
                                       22
<PAGE>   30
 
   
("FFO"). The expected equity total return was determined based upon the
Company's and the comparable companies' dividend yields plus expected FFO growth
rate. The free cash flow methodology discounted all available cash flow before
interest and dividends for the years 1999 through 2003, using discount rates
reflecting a weighted average cost of capital and applying terminal multiples on
2004 earnings before interest, taxes, depreciation and amortization expense
("EBITDA"). The leveraged recapitalization analysis assumed that debt would be
raised to purchase the outstanding public shares and projected dividends based
upon 50% of funds available for distribution after all projected capital
expenditures. The projected dividends were discounted for the years 1999 through
2003. The assumed equity total return for the leveraged recapitalization
analyses was determined based on the range of dividend yields plus FFO growth
rates for the comparable publicly traded apartment REITs listed in the
comparable company analysis below. The range of estimated present values per
share pursuant to the discounted cash flow analyses are shown below as compared
to the offer price of $34.00 per share:
    
 
   
<TABLE>
<CAPTION>
          METHODOLOGY             DISCOUNT RATE     TERMINAL MULTIPLE    PER SHARE VALUE RANGE
          -----------             --------------    -----------------    ---------------------
<S>                               <C>               <C>                  <C>
Dividend Discount...............  11.0% to 15.0%      9.0x to 12.0x        $30.00 to $39.00
Free Cash Flow..................  9.5% to 11.5%      10.5x to 13.0x        $30.00 to $40.00
Leveraged Recapitalization......  14.0% to 18.0%      7.5x to 10.5x        $30.50 to $40.00
</TABLE>
    
 
   
Analyses of Selected Comparable Publicly Traded Companies. Morgan Stanley
reviewed the trading statistics of selected comparable publicly traded apartment
REITs, selected on the basis of their size, portfolio characteristics and
geographic concentration or presence in high barrier-to-entry markets. The
comparable companies selected included:
    
 
   
     - Archstone Communities Trust
    
 
   
     - AvalonBay Apartment Communities Inc.
    
 
   
     - BRE Properties Inc.
    
 
   
     - Equity Residential Properties Trust
    
 
   
     - Essex Property Trust Inc.
    
 
   
     - Post Properties Inc.
    
 
   
Morgan Stanley then added an estimated value of the Land Rights Agreement,
derived by estimating the present value benefit of the Company's right to
purchase land from The Irvine Company at below-market prices (the "LRA Value")
to the values estimated by applying trading statistics of the comparable
companies to the Company. The LRA Value was estimated at $37.5 million or $.83
per share based on the present value of the potential below-market prices
through the expiration of the Land Rights Agreement, based on varying build out
assumptions.
    
 
   
     Based on consensus security analyst estimates for 1999, as reported by
First Call, and January 20, 1999 closing share prices, the trading multiples of
1999 projected FFO per share of the comparable companies ranged from 9.2x to
10.4x, with an average of 9.9x. Applying this range of multiples to the
estimated 1999 FFO per share for the Company resulted in a range of values per
share of Common Stock of $26.61 to $29.91. Normalizing each of the comparable
companies' 1999 FFO to a target leverage (debt to market capitalization) ratio
of 35% allowing for the multiples to be on a comparable leverage basis, the
trading multiples of normalized 1999 FFO per share ranged from 9.7x to 11.1x.
Applying this range of multiples to the normalized 1999 FFO for the Company and
adding the LRA Value resulted in a range of values per share of Common Stock of
$28.06 to $31.76.
    
 
   
     Based on the January 20, 1999 closing share prices of the comparable
companies, their dividend yields ranged from 5.8% and 7.6%, with an average of
6.7%. Applying this range of dividend yields to the estimated 2000 dividends for
the Company and adding the LRA Value resulted in a range of values per share of
Common Stock of $25.78 to $33.49.
    
 
   
     Morgan Stanley also reviewed the multiple-to-total return ratios of the
comparable companies. The multiple-to-total return ratios were obtained by
dividing the FFO trading multiple for each comparable company by its total
return, computed as the sum of its annualized reported dividend yield and the
consensus
    
 
                                       23
<PAGE>   31
 
   
analyst estimates of the long-term growth rate as reported by First Call, an
industry service provider of earnings estimates based on an average of earnings
estimates published by various investment banking firms. The multiple-to-total
return ratios for the comparable companies ranged from .52x to .75x. This range
was applied to the Company's estimated total return to arrive at an implied FFO
multiple range of 9.2x to 12.1x. Applying the estimated 1999 FFO per share and
adding the LRA Value yielded an implied range of values per share of Common
Stock of $26.51 to $34.67.
    
 
   
     The following table presents, as of January 20, 1999, the range of
multiples of the comparable companies and the resulting implied per share value
range for the Company. The comparable companies information was based upon
consensus security analyst estimates for 1999 as reported by First Call.
    
 
   
<TABLE>
<CAPTION>
                                                   PRICE/
                              PRICE/1999E        NORMALIZED          DIVIDEND         MULTIPLE TO
                                  FFO            1999E FFO            YIELD           TOTAL RETURN
                            ---------------   ----------------   ----------------   ----------------
<S>                         <C>               <C>                <C>                <C>
COMPARABLE COMPANIES
  INFORMATION............    9.2x to 10.4x     9.7x to 11.1x       5.8% to 7.6%       .52x to .75x
COMMON STOCK ESTIMATED
  VALUE RANGE............   $26.61 to 29.91   $28.06 to $31.76   $25.78 to $33.49   $26.51 to $34.67
</TABLE>
    
 
   
     None of the comparable companies is identical to the Company. 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 the
Company, such as the impact of competition on the Company and the industry
generally, industry growth and the absence of any adverse material change in the
financial condition and prospects of the Company or the industry or in the
financial markets in general.
    
 
   
     Ability-to-Pay Analysis. Morgan Stanley analyzed the purchase price that
could be paid by another public apartment company based on a variety of
assumptions as to a potential acquiror's acceptable level of earnings accretion
or dilution. Based upon each comparable company's cost of debt and equity, a
supportable purchase price was calculated assuming it would be break-even to the
potential acquiror's earnings or be slightly dilutive. To arrive at the
break-even and slightly dilutive prices, the Company's 1999 estimated FFO was
divided by the blended cost of debt and equity. The resulting comparable
companies supportable price ranged from $32.00 to $34.50 per share of Common
Stock.
    
 
   
     Analyses of Selected Comparable Transactions. Morgan Stanley compared the
principal terms of the Merger with those of selected other comparable
transactions. The analysis of comparable transactions may be considered to
represent a continuation analysis for the Company. Morgan Stanley analyzed three
groups of selected transactions: public REIT transactions, public multi-family
REIT transactions and minority shareholder transactions. None of the public REIT
transactions or public multi-family REIT transactions involved "going private"
transactions or all-cash offers.
    
 
   
                            PUBLIC REIT TRANSACTIONS
    
 
   
<TABLE>
<CAPTION>
     ANNOUNCEMENT DATE                    ACQUIROR                           ACQUIREE
     -----------------                    --------                           --------
<S>                          <C>                                  <C>
July 1998                    Equity Residential Properties Trust  Merry Land & Investment Company
September 1997               Equity Office Properties             Beacon Properties
August 1997                  Equity Residential Properties Trust  Evans Withycombe
January 1997                 Equity Residential Properties Trust  Wellsford Residential
March 1996                   Simon Property Group                 DeBartolo Realty
</TABLE>
    
 
   
     Based on the average trading prices for the ten-trading day period ending
five trading days prior to the public announcement of each of the public REIT
transactions, the average premium paid by the surviving company for the company
being acquired was 18.6% and ranged from 13.5% to 22.4% for the selected
transactions. On the same computation basis, the premium to be paid by the
Acquiror pursuant to the Merger is 24.6%.
    
 
                                       24
<PAGE>   32
 
   
                     PUBLIC MULTI-FAMILY REIT TRANSACTIONS
    
 
   
<TABLE>
<CAPTION>
     ANNOUNCEMENT DATE                    ACQUIROR                           ACQUIREE
     -----------------                    --------                           --------
<S>                          <C>                                  <C>
July 1998                    Equity Residential Properties Trust  Merry Land & Investment Company
April 1998                   Security Capital Pacific Trust       Security Capital Atlantic
March 1998                   Bay Apartment Communities            Avalon Properties
December 1997                Apartment Investment and Management
                             Company                              Ambassador Properties
December 1997                Camden Property Trust                Oasis Residential
August 1997                  Equity Residential Properties Trust  Evans Withycombe
August 1997                  Post Properties Trust                Columbus Realty Trust
January 1997                 Equity Residential Properties Trust  Wellsford Residential
December 1996                Camden Property Trust                Paragon Group, Inc.
October 1996                 United Dominion Realty               South West Property Trust
October 1995                 BRE Properties                       REIT of California
</TABLE>
    
 
   
     Based on the average trading prices for the ten-trading day period ending
five trading days prior to the public announcement of each of these
transactions, the average premium paid by the surviving company for the company
being acquired in the public multi-family REIT transactions was 11.7% and ranged
from (1.0)% to 20.7% for the selected transactions. On the same computation
basis, the premium to be paid by the Acquiror pursuant to the Merger is 24.6%.
    
 
   
     The third group of transactions analyzed involved minority shareholder
transactions, in which the majority shareholder bought out the minority
shareholders. A random sampling of 26 transactions from 1992 to 1998 was
reviewed. The per share premiums paid ranged widely from approximately 0% to
50%.
    
 
   
     Applying the low end of the range of public REIT transaction premiums and
the midpoint of the range of minority shareholder transaction premiums resulted
in a range of values per share of Common Stock of $31.00 to $35.00.
    
 
     No transaction utilized in a comparable transaction analysis is identical
to the Merger and, accordingly, an analysis of the results of the foregoing
necessarily involves complex considerations and judgments concerning financial
and operating characteristics of the Company and other factors that would affect
the acquisition value of companies to which it is being compared. In evaluating
the selected comparable transactions, 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 the Company, such as the impact of competition on the Company and the
industry generally, industry growth and the absence of any adverse material
change in the financial condition and prospects of the Company or the industry
or in the financial markets in general.
 
   
     Wall Street's Views. Morgan Stanley reviewed the price estimates and net
asset value estimates for the Company as reported by Green Street Advisors,
Morgan Stanley Dean Witter, CIBC Oppenheimer, Jefferies & Company, Sutro & Co.,
the Penobscot Group and Realty Stock Review. Morgan Stanley reviewed the net
asset and price target valuations published by the analysts prior to the
December 1, 1998 offer date, and after December 1, 1998. From October 5, 1998
through December 20, 1998 (post-announcement), the net asset value estimates
from these analysts ranged from $24.00 to $35.28 per share. In the same time
period, price targets for six to twelve months from these analysts ranged from
$30.00 to $37.47 per share.
    
 
   
     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to a partial analysis or summary description. Morgan
Stanley believes that its analyses must be taken as a whole and that selecting
portions of its analyses, without considering all analyses, would create an
incomplete view of the process underlying the Opinion. In addition, certain
analyses or valuations may be more or less relevant than other analyses or
valuations, and may have assumptions which are more or less probable than other
assumptions, so that the ranges of valuations resulting from a particular
analysis described above should not be taken to be Morgan Stanley's view of the
value of the Common Stock. In light of the number and variety of
    
 
                                       25
<PAGE>   33
 
   
analyses, valuations and assumptions considered, Morgan Stanley did not find it
practicable to assign relative weights to these analyses, valuations and
assumptions considered.
    
 
     In performing its analyses, Morgan Stanley made numerous 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 the Company. The analyses performed by Morgan Stanley are not
necessarily indicative of actual value, 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 whether the consideration to be received by
the Nonaffiliated Shareholders pursuant to the Merger Agreement is fair from a
financial point of view to such holders, and were conducted in connection with
the delivery of the Opinion by Morgan Stanley to the Board of Directors. The
analyses do not purport to be appraisals or to reflect the prices at which the
Company might actually be sold. The Morgan Stanley analyses described above
should not be viewed as determinative of the opinion of the Board of Directors
or the management of the Company with respect to the value of the Company or of
whether Morgan Stanley would have been willing to agree to any consideration
other than the consideration to be received by the Shareholders pursuant to the
Merger.
 
   
     The Opinion speaks as of February 1, 1999 (the date the Special Committee
and the Board of Directors approved the Merger) and Morgan Stanley is not
required to and does not intend to update the Opinion. Among other things,
changes in industry performance, general business, economic, market and
financial conditions, as well as changes in the Company's business or its
properties, may affect a future determination of fairness. In addition, in the
event of a material amendment to the Merger Agreement, the Special Committee may
request Morgan Stanley to update the Opinion, if it deems appropriate.
    
 
   
     As described above, the Opinion and presentation of Morgan Stanley to the
Board of Directors were only one of many factors taken into consideration by the
Special Committee in making its determination to approve the Merger Proposal. In
addition, the terms of the Merger Agreement were determined through negotiations
between the Special Committee and the Acquiror. Although Morgan Stanley provided
advice to the Special Committee during the course of these negotiations, the
decision to enter into the Merger Agreement and to accept the consideration to
be received in the Merger was solely that of the Special Committee and the Board
of Directors.
    
 
   
     The Special Committee retained Morgan Stanley based upon its experience and
expertise. Morgan Stanley is an internationally recognized investment banking
and advisory firm. As part of its investment banking business, Morgan Stanley is
regularly engaged in the valuation of businesses and securities in connection
with mergers and acquisitions, negotiated underwritings, competitive biddings,
secondary distributions of listed and unlisted securities, private placements
and valuation for estate, corporate and other purposes. In the ordinary course
of their business, Morgan Stanley and its affiliates may actively trade the debt
and equity securities of the Company for their own account and for the account
of customers and, accordingly, may at any time hold long or short positions in
such securities or senior loans. Morgan Stanley has also acted as an underwriter
in connection with public offerings of the Company's securities and has
performed various investment banking services for the Company and The Irvine
Company. Morgan Stanley acted as an underwriter for the Series A Preferred
Securities of IAC Capital Trust in January 1998 and received underwriting
commissions and fees of $686,000 for such services. No other similar
arrangements are mutually contemplated at this time. Morgan Stanley received no
instructions from the Acquiror or The Irvine Company relating to Morgan
Stanley's preparation of the Opinion.
    
 
   
     In connection with the services of Morgan Stanley as financial advisor to
the Special Committee with respect to the Merger and related matters, the
Company has agreed to pay Morgan Stanley certain fees. If a transaction is
accomplished, the Company has agreed to pay Morgan Stanley a transaction fee
(the "Transaction Fee"). The Transaction Fee will be approximately $4.3 million,
calculated as the sum of (a) $3 million and (b) the product of (i) 5% and (ii)
the amount, if any, by which the aggregate consideration paid in the transaction
to holders of Common Stock, options exercisable for Common Stock or common L.P.
Units of the Operating Partnership (in each case as not currently owned by The
Irvine Company or its affiliates) exceeds the aggregate consideration such
securityholders would have received under the proposal set forth in the December
1 Letter. In addition, the Company has agreed to reimburse Morgan Stanley for
its
    
 
                                       26
<PAGE>   34
 
reasonable out-of-pocket expenses (including the fees and disbursements of their
attorneys) and to indemnify Morgan Stanley and certain related persons against
certain liabilities, including certain liabilities under the federal securities
laws, arising out of its engagement. If a transaction is not accomplished, the
Company has agreed to pay Morgan Stanley a fee of $500,000 in connection with
the delivery of Morgan Stanley's Opinion.
 
POSITION OF THE ACQUIROR AND THE IRVINE COMPANY
 
   
     The Acquiror and The Irvine Company have each concluded that the Merger is
fair to the Nonaffiliated Shareholders based on the following factors:
    
 
   
     - the recommendation of and approval by the Special Committee described
       under "-- Recommendation of the Special Committee and the Board of
       Directors; Fairness of the Merger";
    
 
   
     - the receipt by the Board of Directors of the Company of the opinion of
       Morgan Stanley that the consideration to be received by the Nonaffiliated
       Shareholders in the Merger is fair to such shareholders from a financial
       point of view;
    
 
   
     - the fact that the principal terms of the Merger were established through
       arm's-length negotiation with the Special Committee and its legal and
       financial advisors; and
    
 
   
     - the fact that during the negotiation of the Merger Agreement, the
       interests of the Nonaffiliated Shareholders were represented by the
       Special Committee and its legal and financial advisors.
    
 
   
     In addition to the other factors considered by the Acquiror and The Irvine
Company in concluding that the Merger is fair to Nonaffiliated Shareholders, the
Acquiror and The Irvine Company adopted the conclusion and analysis of the
Special Committee described under "-- Recommendation of the Special Committee
and the Board of Directors; Fairness of the Merger" that the Merger is fair to
the Nonaffiliated Shareholders. The Acquiror and The Irvine Company did not
attach relative weights to the specific factors considered in reaching their
conclusions as to the fairness of the Merger, although they considered the arm's
length negotiations between the parties, the receipt by the Special Committee of
the opinion of Morgan Stanley and the recommendation of the Special Committee to
be the most significant.
    
 
   
     The Irvine Company retained NationsBanc Montgomery to analyze its
alternatives regarding its investment in the Company which included (a)
maintaining The Irvine Company's ownership in the Company without taking any
further action; (b) selling all or a portion of its ownership interest in the
Company; or (c) purchasing the shares of the Company which it did not already
own. In connection with the engagement, the Acquiror and The Irvine Company
asked NationsBanc Montgomery to perform preliminary financial analyses regarding
a potential business combination. On November 25, 1998, NationsBanc Montgomery
made presentations to the Acquiror and The Irvine Company in which NationsBanc
Montgomery summarized its preliminary financial analyses in the First
NationsBanc Montgomery Report. Upon determining to proceed with the December 1
Letter, the Acquiror and The Irvine Company engaged NationsBanc Montgomery to
act as their financial advisor in connection with the transaction proposed in
the December 1 Letter. Following December 1, 1998, NationsBanc Montgomery
continued to refine its financial analyses, which culminated on December 30,
1998 in the presentation of the Second NationsBanc Montgomery Report. In
response to requests by Morgan Stanley, NationsBanc Montgomery delivered the
Third NationsBanc Montgomery Report to Morgan Stanley on January 12, 1999.
    
 
   
SUMMARY OF THE NATIONSBANC MONTGOMERY REPORTS
    
 
   
     All information contained in this summary has been supplied by the Acquiror
for inclusion herein and has not been independently verified by the Company.
NationsBanc Montgomery was not retained to, and was not expected to, render any
advice or opinion as to the fairness to the Nonaffiliated Shareholders of the
consideration to be received by them in the Merger. NEITHER THE SPECIAL
COMMITTEE NOR THE BOARD OF DIRECTORS OF THE COMPANY RELIED UPON THE NATIONSBANC
MONTGOMERY REPORTS IN DETERMINING THAT THE MERGER PROPOSAL WAS FAIR TO, AND IN
THE BEST INTERESTS OF, THE NONAFFILIATED SHAREHOLDERS.
    
 
                                       27
<PAGE>   35
 
     Pursuant to the Acquiror Engagement Letter, The Irvine Company retained
NationsBanc Montgomery to act as its financial advisor in connection with the
possible acquisition of the Company. NationsBanc Montgomery is a nationally
recognized investment banking firm and, as part of its activities, is regularly
engaged in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, secondary distributions of
listed and unlisted securities, private placements and valuations for corporate
and other purposes. The Acquiror and The Irvine Company selected NationsBanc
Montgomery as their financial advisor on the basis of NationsBanc Montgomery's
experience and expertise in transactions similar to the proposal set forth in
the December 1 Letter and its reputation in the REIT industry and investment
community and its historical investment banking relationship with The Irvine
Company.
 
   
     NationsBanc Montgomery prepared the NationsBanc Montgomery Reports but did
not prepare or render any opinion as to the fairness of either the proposal set
forth in the December 1 Letter or the Merger and was not asked to prepare or
render any such opinion to the Acquiror or The Irvine Company. No limitations
were imposed by the Acquiror or The Irvine Company on NationsBanc Montgomery
with respect to the investigations made or procedures followed in preparing the
NationsBanc Montgomery Reports. NationsBanc Montgomery was not requested to, nor
did it, deliver a report to the Acquiror or The Irvine Company with respect to
the Merger or the Acquiror's underlying decision to proceed with or effect the
proposal set forth in the December 1 Letter or the Merger. NationsBanc
Montgomery was not requested to, and did not, make any recommendation to the
Acquiror as to the Merger Consideration, which was determined by the Acquiror.
    
 
     THE FOLLOWING SUMMARY OF THE NATIONSBANC MONTGOMERY REPORTS IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO THE FULL TEXT OF THE NATIONSBANC MONTGOMERY
REPORTS. A COPY OF EACH OF THE NATIONSBANC MONTGOMERY REPORTS HAS BEEN FILED AS
AN EXHIBIT TO THE SCHEDULE 13E-3 FILED WITH THE COMMISSION BY THE ACQUIROR AND
IS AVAILABLE FOR INSPECTION AND COPYING AT THE PRINCIPAL EXECUTIVE OFFICES OF
THE ACQUIROR DURING ITS REGULAR BUSINESS HOURS BY ANY SHAREHOLDER OR SUCH
SHAREHOLDER'S REPRESENTATIVE WHO HAS BEEN SO DESIGNATED IN WRITING, UPON WRITTEN
REQUEST AND AT THE EXPENSE OF THE REQUESTING SHAREHOLDER OR REPRESENTATIVE. THE
NATIONSBANC MONTGOMERY REPORTS WERE DIRECTED TO THE ACQUIROR AND THE BOARD OF
DIRECTORS OF THE IRVINE COMPANY AND DO NOT CONSTITUTE A RECOMMENDATION TO ANY
SHAREHOLDER AS TO HOW SUCH SHAREHOLDER SHOULD VOTE WITH RESPECT TO THE MERGER.
THE NATIONSBANC MONTGOMERY REPORTS DO NOT ADDRESS THE UNDERLYING DECISION OF THE
ACQUIROR TO PROCEED WITH OR EFFECT THE PROPOSAL SET FORTH IN THE DECEMBER 1
LETTER OR THE MERGER OR ANY OTHER ASPECT OF THE PROPOSAL SET FORTH IN THE
DECEMBER 1 LETTER OR THE MERGER. IN FURNISHING THE NATIONSBANC MONTGOMERY
REPORTS, NATIONSBANC MONTGOMERY DID NOT ADMIT THAT IT IS AN EXPERT WITHIN THE
MEANING OF THE TERM "EXPERT" AS USED IN THE SECURITIES ACT, NOR DID IT ADMIT
THAT THE NATIONSBANC MONTGOMERY REPORTS CONSTITUTE REPORTS OR VALUATIONS WITHIN
THE MEANING OF THE SECURITIES ACT.
 
     In connection with the preparation of the NationsBanc Montgomery Reports,
NationsBanc Montgomery, among other things:
 
   
     - reviewed certain publicly available financial and other data with respect
       to the Company, including the financial statements for recent years and
       interim periods to September 30, 1998, and certain other relevant
       financial and operating data relating to The Irvine Company and the
       Company made available to NationsBanc Montgomery from published sources
       and from the internal records of The Irvine Company and internal records
       of the Company which were provided to NationsBanc Montgomery by The
       Irvine Company;
    
 
   
     - reviewed certain publicly available information concerning the trading
       of, and the trading market for, the Common Stock and calculated the stock
       price of the Common Stock as a multiple of projected FFO per share, based
       on estimates published by First Call;
    
 
   
     - compared the Company from a financial point of view with certain other
       publicly traded companies in the REIT industry which NationsBanc
       Montgomery deemed to be relevant;
    
 
   
     - considered the financial terms of, and the premiums offered in, to the
       extent publicly available, selected recent business combinations of
       publicly traded companies in the REIT industry which NationsBanc
       Montgomery deemed to be comparable, in whole or in part, to the proposal
       set forth in the December 1 Letter;
    
 
                                       28
<PAGE>   36
 
   
     - reviewed the reports and net asset value estimates of industry analysts;
    
 
   
     - calculated net asset values of the Company based on certain
       capitalization rate and discounted cash flow analyses, considering the
       value of certain exclusive land rights using going concern and
       liquidation analyses with respect to stabilized assets;
    
 
   
     - reviewed and discussed with representatives of the management of the
       Acquiror and The Irvine Company certain information of a business and
       financial nature regarding The Irvine Company and the Company furnished
       to NationsBanc Montgomery by them, including financial forecasts and
       related assumptions of The Irvine Company and the Company;
    
 
   
     - made inquiries regarding and discussed the proposal set forth in the
       December 1 Letter and other matters related thereto with the Acquiror's
       counsel; and
    
 
   
     - performed such other analyses and examinations as NationsBanc Montgomery
       deemed appropriate.
    
 
     In connection with its review, NationsBanc Montgomery assumed and relied
upon the accuracy and completeness of the foregoing information and did not
assume any responsibility for independent verification of such information. With
respect to the financial forecasts of The Irvine Company and the Company
provided to NationsBanc Montgomery by the Acquiror's and The Irvine Company's
management, NationsBanc Montgomery assumed for purposes of preparing the
NationsBanc Montgomery Reports, upon the advice of the Acquiror's and The Irvine
Company's management, that such forecasts have been reasonably prepared on bases
reflecting the best available estimates and judgments of the management of The
Irvine Company and the Company at the time of preparation as to the future
financial performance of the Company, and that they provide a reasonable basis
upon which NationsBanc Montgomery could prepare the NationsBanc Montgomery
Reports. The Irvine Company and the Company do not publicly disclose internal
management forecasts of the type provided to NationsBanc Montgomery by the
management of The Irvine Company and the Company in connection with NationsBanc
Montgomery's analyses. Such forecasts were not prepared with a view toward
public disclosure. In addition, such forecasts were based upon numerous
variables and assumptions that are inherently uncertain, including, without
limitation, factors related to general economic and competitive conditions.
Accordingly, actual results could vary significantly from those set forth in
such forecasts. NationsBanc Montgomery has assumed no liability for such
forecasts. NationsBanc Montgomery also assumed that there have been no material
changes in the Company's assets, financial condition, results of operations,
business or prospects since the date of the most recent financial statements
made available to NationsBanc Montgomery. NationsBanc Montgomery relied on
advice of counsel and independent accountants to the Acquiror and The Irvine
Company as to all legal and financial reporting matters with respect to The
Irvine Company, the Merger and the Merger Agreement. In addition, NationsBanc
Montgomery did not assume responsibility for making an independent evaluation,
appraisal or physical inspection of the assets or liabilities (contingent or
otherwise) of the Company, nor was NationsBanc Montgomery furnished with any
such appraisals. Finally, the NationsBanc Montgomery Reports are based on
economic, monetary and market and other conditions as in effect on, and the
information made available to NationsBanc Montgomery as of, the respective dates
of the NationsBanc Montgomery Reports. Set forth below is a summary of the
NationsBanc Montgomery Reports.
 
  THE FIRST NATIONSBANC MONTGOMERY REPORT
 
   
     NationsBanc Montgomery prepared the First NationsBanc Montgomery Report at
the request of The Irvine Company to demonstrate what methodologies might be
used by (a) the Company as the Company determined its response to an offer to
acquire the Company and (b) The Irvine Company or an acquisition subsidiary as
such entities determine the appropriate valuation of the Company should such
entities decide to make an offer to acquire or combine with the Company.
NationsBanc Montgomery prepared the First NationsBanc Montgomery Report using
only publicly available data. The Acquiror's initial proposal price of $32.50
(the "Acquiror's Initial Proposal Price") had not been determined prior to the
preparation of the First NationsBanc Montgomery Report and consequently
NationsBanc Montgomery did not compare the results of its preliminary analyses
to any actual offer price.
    
 
                                       29
<PAGE>   37
 
     Historical Stock Price Analysis. NationsBanc Montgomery reviewed the
performance of the per share market price and trading volume of the Common Stock
for the period from December 1, 1993 to November 23, 1998. The analysis
indicated that for the last year, the highest closing market price per share was
$32.44. The average stock prices for the last 30 trading days, 60 trading days
and 90 trading days prior to November 23, 1998 were $26.81, $26.21 and $25.95,
respectively. NationsBanc Montgomery noted that the closing stock price on
November 23, 1998 was $27.13 (the "November Stock Price").
 
     NationsBanc Montgomery also calculated the implied price per share of
Common Stock as a multiple of projected FFO (as of November 23, 1998) based on
estimates provided to NationsBanc Montgomery by First Call, with such estimates
based on an average of earnings estimates published by various investment
banking firms and based on historical forward multiples of the Company. The
calculations yielded historical forward FFO per share multiples ranging from
9.1x to 15.2x, with a mean of 12.1x and a median of 12.2x. NationsBanc
Montgomery noted that the mean and median multiples of forward FFO per share, on
a historical basis, when multiplied by the estimated calendar year 1999 FFO per
share, implied per share prices of $30.97 and $31.20, respectively, for a share
of Common Stock.
 
   
     Comparable Company Analysis. Based on public and other available
information, including estimates of future financial results published by First
Call and taken from NationsBanc Montgomery research reports, NationsBanc
Montgomery calculated the percentages of debt to total market capitalization
(defined as the market value of the equity of the Company and its subsidiaries
plus total debt), the multiples of stock price to estimated calendar year 1998
FFO per share, and the multiples of stock price to estimated calendar year 1999
FFO per share for eight publicly traded companies in the REIT industry (the
"First Report Comparable Companies"):
    
 
   
     - AvalonBay Apartment Communities Inc.
    
 
   
     - Apartment Investment and Management Company
    
 
   
     - BRE Properties
    
 
   
     - Equity Residential Properties Trust
    
 
   
     - Post Properties Trust
    
 
   
     - Archstone Communities Trust
    
 
   
     - Charles E. Smith Residential Realty
    
 
   
     - United Dominion Realty
    
 
   
The First Report Comparable Companies were selected based on the fact that such
companies (a) had publicly traded securities; (b) were in the REIT industry; and
(c) had market valuations and trading valuations similar to what might be
expected for the Company. Such analysis indicated the following: a range of
percentages of debt to total market capitalization of 31.0% to 61.8%, with a
mean of 45.2% and a median of 46.4%; a range of stock price to estimated
calendar year 1998 FFO per share of 7.7x to 11.6x, with a mean of 10.5x and a
median of 10.9x; and a range of stock price to estimated calendar year 1999 FFO
per share of 7.2x to 10.6x, with a mean of 9.5x and a median of 9.9x.
NationsBanc Montgomery noted that the November Stock Price implied a percentage
of debt to total market capitalization of 44.6%. NationsBanc Montgomery also
noted that the estimated calendar year 1998 FFO per share and the estimated
calendar year 1999 FFO per share, when multiplied by the stock price to
estimated calendar year 1998 FFO per share or the estimated calendar year 1999
FFO per share (as applicable) mean and median multiples, implied per share
valuations of $23.68 and $24.60 and $24.30 and $25.25, respectively, for a share
of Common Stock.
    
 
     Comparable Transactions Analysis. Based on public and other available
information, NationsBanc Montgomery calculated the multiples of aggregate value
to last twelve months (to November 23, 1998) ("LTM") EBITDA and LTM FFO per
share for the target company implied in 13 acquisitions of control of
 
                                       30
<PAGE>   38
 
   
comparable publicly traded REIT companies that were announced between January
17, 1997 and November 17, 1998 (the "First Report Comparable Transactions"):
    
 
   
     - ProLogic Trust's acquisition of Meridian Industrial Trust, announced
       November 17, 1998;
    
 
   
     - United Dominion Realty's acquisition of American Apartment Communities,
       announced on September 10, 1998;
    
 
   
     - Equity Residential Properties Trust's acquisition of Merry Land &
       Investment Co. Inc., announced July 8, 1998;
    
 
   
     - Security Capital Pacific Trust's acquisition of Security Capital
       Atlantic, announced April 2, 1998;
    
 
   
     - Bay Apartment Communities' acquisition of Avalon Properties, announced
       March 8, 1998;
    
 
   
     - United Dominion Realty's acquisition of ASR Investments Corp., announced
       December 22, 1997;
    
 
   
     - Camden Property Trust's acquisition of Oasis Residential Inc., announced
       December 17, 1997;
    
 
   
     - Apartment Investment and Management Company's acquisition of Ambassador
       Properties, announced December 16, 1997;
    
 
   
     - Equity Residential Properties Trust's acquisition of Evans Withycombe,
       announced August 28, 1997;
    
 
   
     - Vornado Realty Trust's acquisition of Arbor Property Trust, announced
       August 25, 1997;
    
 
   
     - Post Properties Trust's acquisition of Columbus Realty Trust, announced
       August 4, 1997;
    
 
   
     - Apartment Investment and Management Company's acquisition of NHP Inc.,
       announced February 20, 1997; and
    
 
   
     - Equity Residential Properties Trust's acquisition of Wellsford
       Residential Property Trust, announced January 17, 1997.
    
 
Such analysis yielded the following multiples: a range of 8.1x to 17.9x LTM
EBITDA, with a mean of 13.9x and a median of 13.6x; and a range of 10.6x to
19.7x LTM FFO per share, with a mean of 13.9x and a median of 13.9x. NationsBanc
Montgomery noted that the Company's estimated calendar year 1999 EBITDA and
estimated calendar year 1999 FFO per share, when multiplied by the means and
medians of LTM EBITDA and LTM FFO per share, implied per share prices of $20.79
and $19.96 and $30.35 and $30.37, respectively, for a share of Common Stock.
 
     NationsBanc Montgomery also compared the discounts/premiums paid in the
First Report Comparable Transactions to the share price of the target company
one day prior to the announcement of the proposal set forth in the December 1
Letter in the First Report Comparable Transactions. Such analysis indicated a
range of discounts/premiums of (1.3%) to 14.9%, with a mean of 7.7% and a median
of 7.9%. NationsBanc Montgomery noted that adding the mean and median
discounts/premiums to the November Stock Price implied share prices of $29.20
and $29.27.
 
     Control Premium Analysis. NationsBanc Montgomery reviewed the consideration
paid in 124 acquisitions of controlling equity interests in target companies
announced between January 7, 1997 and November 17, 1998 in which the aggregate
values paid were between $500 million and $1.5 billion. NationsBanc Montgomery
calculated the premiums paid relative to the prices of the acquired controlling
equity interests for one day, one week and thirty days prior to the announcement
of the proposal set forth in the December 1 Letter. Such analysis indicated
median premiums of 17.8%, 23.0% and 28.2%, respectively. Multiplying the implied
premiums by the November Stock Price implied per share stock prices of $31.78,
$33.37 and $35.46, respectively, for a share of Common Stock.
 
   
     NationsBanc Montgomery presented the control premium analysis as an
analysis which might be used in determining the valuation of the Company but
determined that such an analysis would not be meaningful in preparing the other
NationsBanc Montgomery Reports because the target companies within the aggregate
    
 
                                       31
<PAGE>   39
 
   
value range of $500 million and $1.5 billion were not generally in the same
industry as the Company, making the analysis less meaningful.
    
 
     No other company or transaction used in the comparable company, comparable
transactions and control premium analyses as a comparison is identical to the
Company or the proposal set forth in the December 1 Letter. Accordingly, an
analysis of the results of the foregoing is not mathematical; rather, it
involves complex considerations and judgments concerning differences in
financial and operating characteristics of the companies and other factors that
could affect the public trading value of the companies to which the Company and
the proposal set forth in the December 1 Letter were compared in the NationsBanc
Montgomery Reports.
 
   
     Research Analyst Views. NationsBanc Montgomery reviewed and summarized
publicly available equity analyst research reports regarding the Company
published between October 24, 1997 and November 4, 1998 (the "Research
Reports"). The Research Reports were prepared by:
    
 
   
     - Merrill Lynch
    
 
   
     - NationsBanc Montgomery
    
 
   
     - Jefferies & Co.
    
 
   
     - Morgan Stanley
    
 
   
     - Dean Witter
    
 
   
     - Sutro & Co.
    
 
   
     - J.P. Morgan & Co.
    
 
   
     - Paine Webber
    
 
   
     - CIBC Oppenheimer
    
 
   
     - Everen Securities
    
 
   
     - Goldman, Sachs & Co.
    
 
   
     - Salomon Smith Barney
    
 
   
     - Donaldson, Lufkin & Jenrette
    
 
   
     - Prudential
    
 
NationsBanc Montgomery noted that the Research Reports indicated a range of
estimated target price (during a projected twelve to eighteen month period) per
share valuation of $30.00 to $34.00, with a mean of $32.00, to the extent the
Research Reports indicated such a price. NationsBanc Montgomery also noted that
the Research Reports indicated a range of estimated net asset value ("NAV") per
share of $24.00 to $28.71, with a mean of $26.57, to the extent the Research
Reports indicated such a value.
 
   
     Net Asset Value Analysis. NationsBanc Montgomery estimated the NAV per
share of the Company based on a property-by-property analysis. For stabilized
properties, a range of capitalization rates based on recent, comparable market
transactions were applied to forward estimates of net operating income, based on
projections of The Irvine Company's management. Other assets under construction
or not fully leased were valued at cost of construction. The gross value of the
assets was reduced by the estimated value of the net debt and preferred equity
of the Company and its subsidiaries to arrive at NAVs per share ranging from
$30.76 to $32.50 for a share of Common Stock. NationsBanc Montgomery prepared
its net asset value analysis based solely on publicly available information and
consequently noted that such analysis was preliminary.
    
 
     Discounted Cash Flow Analysis. NationsBanc Montgomery applied a discounted
cash flow analysis to the financial cash flow forecasts for the Company for
calendar years 1998 through 2003, as estimated by The Irvine Company's
management. In conducting this analysis, NationsBanc Montgomery first calculated
the present values of the forecasted cash flows. Second, NationsBanc Montgomery
estimated the present value of the aggregate value of the Company at the end of
calendar year 2003 by capitalizing the Company's estimated
 
                                       32
<PAGE>   40
 
   
calendar year 2004 net operating income at a capitalization rate of 8.5%, which
was arrived at by determining the capitalization rates implied by recent
comparable transactions and adding 100 basis points. Such cash flows and
aggregate values were discounted to present values using discount rates ranging
from 10% to 12%. NationsBanc Montgomery selected the range of discount rates
based on its prior experience in the Company's industry and its estimation of
what discount rates potential third party acquirors might apply in determining
their own valuations of the Company. This analysis indicated a range of imputed
equity values of the Company of $29.94 to $33.46.
    
 
  THE SECOND NATIONSBANC MONTGOMERY REPORT
 
   
     NationsBanc Montgomery prepared the Second NationsBanc Montgomery Report in
response to the request of the Special Committee and the Acquiror for the
December 30, 1998 meeting with Morgan Stanley. NationsBanc Montgomery was now
able to take the Acquiror's Initial Proposal Price of $32.50 per share into
account and was instructed to perform financial due diligence regarding the
Company and its properties.
    
 
   
     Historical Stock Price Analysis. NationsBanc Montgomery again reviewed the
performance of the per share market price and trading volume of the Common Stock
for the period from December 1, 1993 to November 23, 1998. The analysis
indicated that for the last year, the highest closing market price per share was
$32.44. The average stock prices for the last 30 trading days, 60 trading days
and 90 trading days prior to November 23, 1998 were $26.81, $26.21 and $25.95,
respectively. NationsBanc Montgomery noted that the Acquiror's Initial Proposal
Price of $32.50 was greater than each of the average historical stock prices.
    
 
   
     NationsBanc Montgomery also calculated the implied price per share of
Common Stock as a multiple of projected FFO (as of November 23, 1998), based on
estimates provided to NationsBanc Montgomery by First Call, with such estimates
based on an average of earnings estimates published by various investment
banking firms and based on historical forward multiples of the Company. The
calculations yielded historical forward FFO multiples ranging from 9.1x to
15.2x, with a mean of 12.1x and a median of 12.2x. NationsBanc Montgomery noted
that the mean and median multiples of forward FFO per share, on a historical
basis, when multiplied by the estimated calendar year 1999 FFO per share,
implied per share prices of $30.97 and $31.20, respectively, for a share of
Common Stock, which were less than the Acquiror's Initial Proposal Price of
$32.50.
    
 
   
     Comparable Company Analysis. Based on public and other available
information including estimates of future financial results published by First
Call and taken from NationsBanc Montgomery research reports, NationsBanc
Montgomery calculated the percentages of debt to total market capitalization,
the multiples of stock price to estimated calendar year 1998 FFO per share, and
the multiples of stock price to estimated calendar year 1999 FFO per share for
the First Report Comparable Companies. Such analysis indicated the following: a
range of percentages of debt to total market capitalization of 31.0% to 61.8%,
with a mean of 45.2% and a median of 46.4%; a range of stock price to estimated
calendar year 1998 FFO per share of 7.7x to 11.6x, with a mean of 10.5x and a
median of 10.9x; and a range of stock price to estimated calendar year 1999 FFO
per share of 7.2x to 10.6x, with a mean of 9.5x and a median of 9.9x.
NationsBanc Montgomery noted that the November Stock Price implied a percentage
of debt to total market capitalization of 44.6%. NationsBanc Montgomery also
noted that the estimated calendar year 1998 FFO per share and the estimated
calendar year 1999 FFO per share, when multiplied by the stock price to
estimated calendar year 1998 FFO per share or the estimated calendar year 1999
FFO per share (as applicable) mean and median multiplies, implied per share
valuations of $23.68 and $24.60 and $24.30 and $25.25, respectively, for a share
of Common Stock, which were less than the Acquiror's Initial Proposal Price of
$32.50.
    
 
     Comparable Transactions Analysis. Based on public and other available
information, NationsBanc Montgomery calculated the multiples of aggregate value
to LTM EBITDA and LTM FFO per share for the target company implied in the First
Report Comparable Transactions. Such analysis yielded the following multiples: a
range of 8.1x to 17.9x LTM EBITDA, with a mean of 13.9x and a median of 13.6x;
and a range of 10.6x to 19.7x LTM FFO per share, with a mean of 13.9x and a
median of 13.9x. NationsBanc Montgomery noted that the Company's estimated
calendar year 1999 EBITDA and estimated calendar year 1999 FFO per share, when
multiplied by the means and medians of LTM EBITDA and LTM FFO per share, implied
per
 
                                       33
<PAGE>   41
 
   
share prices of $20.79 and $19.96 and $30.35 and $30.37, respectively, for a
share of Common Stock, which were less than the Acquiror's Initial Proposal
Price of $32.50.
    
 
   
     NationsBanc Montgomery also compared the discounts/premiums paid in the
First Report Comparable Transactions to the share price of the target company
one day prior to the announcement in the First Report Comparable Transactions.
Such analysis indicated a range of discounts/premiums of (1.3%) to 14.9%, with a
mean of 7.7% and a median of 7.9%. NationsBanc Montgomery noted that adding the
mean and median discounts/premiums to the November Stock Price implied share
prices of $29.20 and 29.27, which were less than the Acquiror's Initial Proposal
Price of $32.50.
    
 
     No other company or transaction used in the comparable company and
comparable transactions analyses as a comparison is identical to the Company or
the proposal set forth in the December 1 Letter. Accordingly, an analysis of the
results of the foregoing is not mathematical; rather, it involves complex
considerations and judgments concerning differences in financial and operating
characteristics of the companies and other factors that could affect the public
trading value of the companies to which the Company and the proposal set forth
in the December 1 Letter were compared in the NationsBanc Montgomery Reports.
 
   
     Research Analyst Views. NationsBanc Montgomery reviewed and summarized the
Research Reports. NationsBanc Montgomery noted that the Research Reports
indicated a range of estimated target price (during a projected twelve to
eighteen month period) per share valuation of $30.00 to $34.00, with a mean of
$32.00, to the extent the Research Reports indicated such a price. NationsBanc
Montgomery also noted that the Research Reports indicated a range of estimated
NAV per share of $24.00 to $28.71, with a mean of $26.57, to the extent the
Research Reports indicated such a value, with such values being less than the
Acquiror's Initial Proposal Price of $32.50.
    
 
   
     Net Asset Value Analyses. NationsBanc Montgomery performed several net
asset value analyses of the Company, incorporating the results of its financial
due diligence. NationsBanc Montgomery calculated NAV by first arriving at a
value for the real property assets of the Company. The real estate assets
included were categorized as stabilized (properties which are fully constructed
and fully leased), lease-up (properties for which construction is nearly
complete and which are not fully leased) and under construction. Stabilized
assets were valued using "going concern" and liquidation analyses, discussed
below. "Lease-up" assets were valued by using a number equal to the sum of
Company management estimates of total costs incurred prior to November 23, 1998
with respect to the construction of such properties and an additional estimated
ten percent (10%) developer's profit, such percentage being customary for the
industry and reflecting the risks incurred by the developer. The "under
construction" assets were valued at cost incurred prior to November 23, 1998
based on Company management estimates.
    
 
   
     Second, NationsBanc Montgomery identified and calculated other sources of
value within the Company. Other sources of value identified included value
associated with existing tax exempt debt and value associated with the Land
Rights Agreement. NationsBanc Montgomery used The Irvine Company's management
estimates to determine a value for the exclusive land rights associated with the
Land Rights Agreement. Based on estimates from The Irvine Company and Company
management, NationsBanc Montgomery assumed that the Company would acquire land
eligible for the development of 5,888 apartment units over a period of five
years, commencing in calendar year 1999. Reviewing 13 comparable sale
transactions between July 1996 and October 1998, NationsBanc Montgomery assumed
an average land cost per unit of $47,000. The comparable sale transactions
included:
    
 
   
     - The Lakes at South Coast
    
 
   
     - The Resorts
    
 
   
     - Villas Alliento
    
 
   
     - Leguna Brisas
    
 
   
     - Sea Terrace
    
 
   
     - Villa Serena
    
 
                                       34
<PAGE>   42
 
   
     - Toscana
    
 
   
     - Oasis Martinique
    
 
   
     - Sea Palms Village
    
 
   
     - Crown Terrance
    
 
   
     - Woodbridge Meadows
    
 
   
     - Mill Creek
    
 
   
Applying a 5% discount established in the Land Rights Agreement to such
projected land sales to determine a hypothetical stream of cash flows for such
five year period, and further discounting such hypothetical cash flows by 12%,
which was the midpoint of the range of selected discount rates, a present value
was determined.
    
 
     Third, NationsBanc Montgomery added the value of the stabilized properties,
the "lease-up" properties and the "under construction" properties and other
identified sources of value to determine the Company's total enterprise value.
Fourth, NationsBanc Montgomery adjusted the total enterprise value to reflect an
estimated discount of 10% based on, among other factors, the aggregate size of
the Company's portfolio and anticipated fees associated with liquidation.
Finally, NationsBanc Montgomery subtracted the net liabilities and preferred
equity of the Company and its subsidiaries from the adjusted total enterprise
value to determine the Company's aggregate equity value.
 
     a. Going Concern Analysis. In performing the NAV calculations, NationsBanc
Montgomery analyzed the value of the Company under the assumption that the
Company would continue its current operations as a going concern. Under the
Going Concern Analysis, the assumption was made that the Company would continue
to incur corporate overhead expenses, which would be deducted from the
stabilized portfolio value prior to arriving at the final NAV.
 
   
     NationsBanc Montgomery used three methods to calculate the going concern
value for stabilized assets. The first method utilized property-specific
projections of net operating income less maintenance capital expenditures for
each of the estimated calendar years 1998 and 1999 (the "Capitalization Rate
Analysis"). Such projections were based on information contained in monthly
operating performance reports through October 1998 prepared by Company
management. The projected cash flows were then capitalized at a blended
capitalization rate of 7.62% to arrive at a value for the Company's stabilized
portfolio of assets. Adding the value of the stabilized portfolio to the other
components of value described above, capitalization of the estimated calendar
years 1998 and 1999 cash flow projections yielded implied share prices of $21.54
and $24.12, respectively, which were less than the Acquiror's Initial Proposal
Price of $32.50.
    
 
   
     The second method utilized Company management operating performance reports
to estimate cash flows for a period of ten years, between 1998 and 2008.
NationsBanc Montgomery expanded the period to which the discounted cash flow
analysis was applied from five to ten years after having had the opportunity to
conduct its financial due diligence and further opportunity to review the 1999
Business Plan. A discounted cash flow analysis was applied to cash flows over
the ten year period using discount rates between 11% and 13%. NationsBanc
Montgomery increased the range of discount rates based on its financial due
diligence and the factors discussed under the heading "Discount Rates for
Analysis of the Present Value of Future Property Cash Flows" in the summary of
the Third NationsBanc Montgomery Report. The terminal value of the assets was
also determined by capitalizing the eleventh year (calendar year 2009) cash flow
projection of each of the assets at a blended capitalization rate of 8.62%.
Adding the value of the stabilized portfolio to the other components of value
described above, the NAV per share range implied by such present value analysis
was $19.30 to $21.68, which were less than the Acquiror's Initial Proposal Price
of $32.50.
    
 
   
     The third method of determining the going concern value of the stabilized
asset portfolio used reports of the Company's management to determine the
aggregate costs of the construction of six recent Company building projects:
    
 
   
     - Sonoma (Oak Creek I)
    
 
                                       35
<PAGE>   43
 
   
     - Britanny I (Oak Creek II)
    
 
   
     - Baypointe
    
 
   
     - Santa Rosa II
    
 
   
     - Santa Maria
    
 
   
     - Rancho Santa Fe
    
 
   
The aggregate cost of construction of each project was divided by the number of
units available for lease in each project to determine an average cost per unit.
Using such statistics, NationsBanc Montgomery calculated the mean and median
cost per unit for the projects to be $116,118 and $117,526. Multiplying the mean
and median costs per unit by the number of units in the Company's stabilized
portfolio, the implied aggregate value of the stabilized portfolio was
calculated to be within a range of $1.895 billion to $1.918 billion. Adding the
value of the stabilized portfolio to the other components of value described
above, the NAV per share range implied by such capitalization was $22.86 to
$23.84, which was less than the Acquiror's Initial Proposal Price of $32.50.
    
 
   
     b. Liquidation Analysis. Under a liquidation analysis, the stabilized
portfolio was valued using the same analysis performed in the Capitalization
Rate Analysis. NationsBanc Montgomery then assumed that the Company would incur
no additional corporate overhead expenses but rather would liquidate its
properties. Additionally, NationsBanc Montgomery assumed that a potential buyer
of the liquidated properties would have to pay additional sums based on a tax
reassessment made under California's Proposition 13 (the "Proposition 13
Liability"). Adding the value of the stabilized portfolio to the other
components of value described above and accounting for the Proposition 13
Liability, the NAV per share range implied by such capitalization was $21.70 to
$24.34, which was less than the Acquiror's Initial Proposal Price of $32.50.
    
 
  THE THIRD NATIONSBANC MONTGOMERY REPORT
 
   
     NationsBanc Montgomery prepared the Third NationsBanc Montgomery Report in
response to a further request by Morgan Stanley. NationsBanc Montgomery
incorporated its review of the 1999 Business Plan into its analyses where
appropriate.
    
 
     Comparable Transactions Analysis. In the Third NationsBanc Montgomery
Report, NationsBanc Montgomery enclosed a copy of its comparable transactions
analyses from the First NationsBanc Montgomery Report and the Second NationsBanc
Montgomery Report. NationsBanc Montgomery noted that the Acquiror's Initial
Proposal Price implied a 19% premium over the closing price of the Common Stock
on November 30, 1998 and that the implied 19% premium was in excess of the 7.9%
median for discounts/premiums indicated in the First Report Comparable
Transactions.
 
     Comparable Company Analysis. In the Third NationsBanc Montgomery Report,
NationsBanc Montgomery enclosed a copy of its comparable company analyses from
the First NationsBanc Montgomery Report and the Second NationsBanc Montgomery
Report. NationsBanc Montgomery reiterated that its analyses indicated that
multiples of stock price to estimated calendar year 1999 FFO per share for the
First Report Comparable Companies ranged from 7.2x to 10.6x, with a mean of
9.5x. NationsBanc Montgomery noted that the Acquiror's Initial Proposal Price
implied a multiple of 12.7x estimated calendar year 1999 FFO per share and a
premium of 34% over the mean 1999 FFO per share multiple of 9.5x. NationsBanc
Montgomery stated that it believed the Company's high FFO per share multiple was
partly due to support from an open market purchase program conducted by The
Irvine Company prior to the Acquiror's offer and that the share price prior to
the Acquiror's offer was also supported by The Irvine Company with respect to a
return guarantee with respect to land sales, which had expired.
 
   
     Research Analyst Views
    
 
     Views Prior to Offer. NationsBanc Montgomery enclosed a copy of a summary
of research analyst views analyses from the First NationsBanc Montgomery Report
and the Second NationsBanc Montgomery Report. NationsBanc Montgomery noted again
that the Research Reports indicated a range of estimated NAV per
                                       36
<PAGE>   44
 
share of $24.00 to $28.71 with a mean of $26.57, to the extent the Research
Reports indicated such a value. NationsBanc Montgomery noted that the Acquiror's
Initial Proposal Price implied a 22% premium over the estimated mean NAV per
share.
 
     Further, NationsBanc Montgomery noted that the estimated mean target price
per share valuation indicated in the Research Reports was $32.00. NationsBanc
Montgomery noted that the Acquiror's Initial Proposal Price implied a 2% premium
over the estimated mean target price per share, which was a projection of price
per share value over a 12 to 18 month period in the future.
 
     Views After Offer Was Made. NationsBanc Montgomery enclosed copies of
publicly available equity analyst research reports regarding the Company
published between December 1, 1998 and December 4, 1998 (the "Post-Offer
Research Reports"). The Post-Offer Research Reports stated that the Acquiror's
Initial Proposal Price was reasonable or fair, with the exception of one such
report which contained no assessment regarding the Acquiror's Initial Proposal
Price's fairness or reasonableness. NationsBanc Montgomery noted that the common
view in unrelated and unsolicited conversations with Shareholders and research
analysts indicated support of the Acquiror's Initial Proposal Price.
 
     Historical Stock Price Analysis. NationsBanc Montgomery enclosed a copy of
the primary page from its historical stock price analyses from the First
NationsBanc Montgomery Report and the Second NationsBanc Montgomery Report.
NationsBanc Montgomery noted that the Acquiror's Initial Proposal Price (a)
implied (i) a 21% premium over the average stock price for the last 30 trading
days prior to November 23, 1998 and (ii) a 25% premium over the average price of
the Common Stock for the last 90 trading days prior to November 23, 1998; and
(b) was greater than the highest price of the Common Stock for the 52-week
period prior to November 23, 1998 (i.e., $32.44).
 
     Trading Activity Analysis. NationsBanc Montgomery noted that over 20% of
the shares of Common Stock owned by Nonaffiliated Shareholders parties were sold
in the open market between December 1, 1998 and January 11, 1999 at prices less
than the Acquiror's Initial Proposal Price.
 
     Rent Growth. NationsBanc Montgomery enclosed copies of rent growth
projections for the Company contained in the 1999 Business Plan and a
presentation by Company management to the Board of Directors on October 30,
1998. NationsBanc Montgomery noted that the 1999 Business Plan contained a 5%
rent growth projection for calendar year 1999 which the Board of Directors
approved at its October 30, 1998 Board meeting (the "October 1998 Board
Presentation").
 
     NationsBanc Montgomery also enclosed a summary providing 21 references to
estimated calendar year 1999 rent growth rates for the Company obtained from the
Company's management and publicly available equity analyst research reports. The
estimated calendar year 1999 rent growth rates for the Company ranged from 3.0%
to 6.2%, with a mean of 4.8%. Based on the information contained in the 1999
Business Plan and the publicly available equity analyst research reports,
NationsBanc Montgomery, the Acquiror and The Irvine Company used the 5% rent
growth projection for calendar year 1999 contained in the 1999 Business Plan for
the applicable valuation analyses. NationsBanc Montgomery also enclosed
summaries of gross domestic product growth forecasts for calendar years 1999
through 2001 derived from publicly available university forecasts and publicly
available "blue chip" economic indicators as well as the Company's internal
forecasts regarding employment to show that forecasted declines in gross
domestic product growth and employment would likely affect housing demand and
the Company's ability to increase rents.
 
     The Third NationsBanc Montgomery Report also clarified references to a
statement by the Chairman of the Board of Directors that the Company's rental
growth rate had been below the 12% annualized rate achieved by competitors in
the relevant geographic region in the first three quarters of 1998. As noted in
the Third NationsBanc Montgomery Report, the statement by the Chairman of the
Board of Directors was made in the context of setting a goal for Company
management that the Company's rental growth rate should meet or exceed the
projected rental growth rates generally anticipated in the regional marketplace
in the future, not that the Chairman had established a 12% rental growth rate
target for the Company.
 
     Bulk Discount. As stated in the third paragraph of the "Net Asset Value
Analyses" section of the summary of the Second NationsBanc Montgomery Report,
NationsBanc Montgomery adjusted the total
                                       37
<PAGE>   45
 
enterprise value to reflect an estimated discount of 10% based on, among other
factors, the aggregate size of the Company's portfolio, the time value of money
and anticipated fees associated with liquidation. NationsBanc Montgomery
responded to Morgan Stanley's inquiries regarding the discount by noting that in
the experience of The Irvine Company and NationsBanc Montgomery, and based on
market research and other information, buyers would typically apply a
size-oriented discount to the total value of the assets being acquired in a
transaction. NationsBanc Montgomery stated its belief that few buyers would be
willing or have the resources available to purchase the Company's entire
portfolio, making liquidity an issue for a prospective buyer. NationsBanc
Montgomery further noted that the Company's portfolio was geographically
concentrated, increasing the risk that any legislative changes, natural
disasters or regional economic downturns would have an impact on the entire
portfolio.
 
     Additionally, NationsBanc Montgomery noted that a third party buyer would
likely discount the value of the Company's aggregate portfolio for a number of
reasons, including the time and transaction costs necessary to complete a
liquidation of the portfolio and the downward pressure that the sale of each
property would cause on property prices for subsequent sales of other properties
out of the portfolio. A third party buyer would also likely have to account for
a substantial increase in property taxes due to tax reassessments under
California's Proposition 13 upon sale of the properties.
 
     NationsBanc Montgomery focused on such factors to further explain its use
of the 10% discount. Finally, NationsBanc Montgomery noted that if Morgan
Stanley's assumptions that (a) no bulk discount would be used in the valuations
and (b) a 45% savings could be achieved with respect to corporate, general and
administrative expenses were applied to the NAV analysis, the price per share
would still be below the Acquiror's Initial Proposal Price.
 
     Land Rights Agreement. NationsBanc Montgomery responded to Morgan Stanley's
inquiries regarding the valuation for the Land Rights Agreement. NationsBanc
Montgomery enclosed a copy of a portion of the 1999 Business Plan setting forth
the Company's projected Irvine Ranch development program.
 
   
     NationsBanc Montgomery noted that the valuation for the Land Rights
Agreement was affected by the supply of available land for multi-family
development on the Irvine Ranch property. NationsBanc Montgomery noted that The
Irvine Company was not obligated under the Land Rights Agreement to make any
land available to the Company for future apartment development and land
identified in the 1999 Business Plan for multi-family development was not
covered by any contractual obligation of The Irvine Company. Using the 1999
Business Plan, NationsBanc Montgomery determined that 5,763 units were
potentially available for development over a period of five years under the Land
Rights Agreement, which was lower than the 5,888 unit number derived from the
estimates of The Irvine Company's management, available prior to preparation of
the Second NationsBanc Montgomery Report. NationsBanc Montgomery noted that the
estimates of the Company and NationsBanc Montgomery were aggressive and that The
Irvine Company had informed the Company on several occasions that the projects
listed in the 1999 Business Plan would likely not all be made available.
Consequently, there existed the possibility that not all of the land referred to
in the 1999 Business Plan would actually be developed under the Land Rights
Agreement, therefore impacting the NAV analysis.
    
 
     NationsBanc Montgomery restated Morgan Stanley's assumption that 15,000
units could be developed over a period of 10 years to determine the value of the
Land Rights Agreement. NationsBanc Montgomery noted that 16,000 units had been
built over 30 years and that expectations that a similar number of units could
be built in 10 years in a more rigorous zoning environment were subject to
question. NationsBanc Montgomery also stated that the Company's historical
building rate after December 1, 1993 was 800 units per year, slightly over half
the number that would have to be built to meet Morgan Stanley's assumption.
Further, NationsBanc Montgomery noted that no apartment development had occurred
on the Irvine Ranch property for several years prior to December 1, 1993.
 
     NationsBanc Montgomery responded to Morgan Stanley's suggestion that the
value to the Company of the Land Rights Agreement should be greater than the 5%
discount applied to the fair market value of projected land sales determined by
independent third party appraisers by noting that the Land Rights Agreement
specified that a 5% discount to fair market value was to be applied. NationsBanc
Montgomery further noted that the 10% minimum return guarantee set forth in the
Land Rights Agreement had expired.
                                       38
<PAGE>   46
 
Consequently, NationsBanc Montgomery had used a 5% discount in arriving at the
cash flow numbers to be valued over the forecast period.
 
     As stated in the "Net Asset Value Analyses" section of the description of
the Second NationsBanc Montgomery Report, NationsBanc Montgomery discounted to
present value the value of the hypothetical cash flows under the Land Rights
Agreement by 12%. NationsBanc Montgomery stated its assumption that discount
rates for land should be significantly higher than discount rates for completed
apartment units due to the speculative nature of the investment, the uncertainty
of entitlement, lack of cash flow and long term investment horizon.
 
     On average, over the five year forecasted period, NationsBanc Montgomery
used an average land price of approximately $50,000 per unit in its valuation
analysis of the Land Rights Agreement. NationsBanc Montgomery responded to
Morgan Stanley's inquiries regarding the average land price by noting that the
Company's best Irvine Ranch land had a current price of $54,000 per unit, while
the land anticipated to be sold under the Land Rights Agreement was to be
located in other areas where land prices were lower.
 
     NationsBanc Montgomery also responded to Morgan Stanley's assertion that a
decrease or cessation of multi-family development would result in higher rents
and increase the value of the existing portfolio. NationsBanc Montgomery noted
that The Irvine Company had the right to use any land on the Irvine Ranch
property for the development and sale of medium to high density residential
property, directly competing with the Company. Further, NationsBanc Montgomery
noted that competitors could build apartment units adjacent to the Irvine Ranch
property, offsetting the potential for rent growth from decreased on-ranch
development. The completion of the Highway 73 corridor and the impact of toll
roads on the apartment rental market in the Irvine Ranch area were also noted.
 
     Corporate General and Administrative Costs. NationsBanc Montgomery enclosed
a copy of a portion of the 1999 Business Plan containing the Company's statement
of funds available for distribution. NationsBanc Montgomery reiterated that if
Morgan Stanley's assumptions that (a) no bulk discount would be used in the
valuations and (b) a 45% savings could be achieved with respect to corporate,
general and administrative expenses were applied to the NAV analysis, the price
per share would still be below the Acquiror's Initial Proposal Price.
NationsBanc Montgomery noted that corporate general and administrative costs had
been taken into account in its analyses because The Irvine Company management
had stated that they anticipated the retention of the Company's existing
management structure and further noted that NationsBanc Montgomery's estimate of
the Company's corporate general and administrative costs for calendar year 1999
had already accounted for a reduction of $1,000,000 from the estimate contained
in the 1999 Business Plan to reflect cost savings from the merger. NationsBanc
Montgomery noted that The Irvine Company anticipated retaining public securities
and that consequently, expenses related to reporting requirements and obtaining
credit ratings would continue to be incurred after the merger.
 
     Capitalization Rates. NationsBanc Montgomery enclosed copies of (a) a
summary of the cash flow capitalization rates for (i) the Company's recent bids
and acquisitions, (ii) comparable sales transactions in the relevant geographic
area, and (iii) publicly available equity analyst research reports; (b) a
comparable sales transactions table included in the Second NationsBanc
Montgomery Report; (c) pro forma operations statements from a Company investment
proposal dated June 19, 1998 for Paloma Summit, Seaview Summit, Niguel Summit
and Hidden Hills; (d) the stabilized portfolio valuation capitalization rate
analysis chart from the Second NationsBanc Montgomery Report; (e) an executive
summary of growth strategies provided by the Company's management; (f) a
memorandum from the Company's management regarding financial information for
four recent acquisitions or bids by the Company; (g) a chart comparing equity
analyst research reports issued before and after the announcement of the
Acquiror's offer; and (h) an article entitled "Denver developer buys 800 Hon
units in Orange County" from the January 8, 1999 edition of The Orange County
Register.
 
     NationsBanc Montgomery reviewed the factors for selecting a blended cash
flow capitalization rate of 7.62% in the going concern analysis of the Company's
stabilized portfolio. NationsBanc Montgomery noted that it had reviewed 45
Company properties and 20 comparable apartment projects in the relevant
geographic area. NationsBanc Montgomery further noted that (a) comparable sales
transactions and publicly available
                                       39
<PAGE>   47
 
equity analyst research reports each implied cash flow capitalization rates of
7.8%; (b) the Hon apartment portfolio sale in Laguna Niguel implied a
capitalization rate of 7.55%, which the Company had valued at a 7.6% forward
twelve month capitalization rate; (c) recent Company bids and acquisitions were
valued using capitalization rates ranging from 7.3% to 7.8%; (d) the 1999
Business Plan specified target "breakeven" capitalization rates of 7.75%; (e)
over the 90 days prior to the Third NationsBanc Montgomery Report, the turmoil
in public equity and debt markets had reduced the number of real estate buyers,
increasing capitalization rates; (f) two recent comparable sales should have
their capitalization rates adjusted due to favorable conditions specific to
those transactions; (g) older properties in the Company portfolio would be
valued at significantly higher capitalization rates, balancing the impact of
higher value properties; and (h) the blended capitalization rate of 7.62%, when
applied to the Acquiror's Initial Proposal Price, implied a price of
approximately $140,000 per stabilized apartment unit, which was two times
greater than the average price for an apartment unit sold in Orange County,
California, 34% higher than comparable apartment unit prices in the southern
Orange County, California area and higher than all apartment unit prices in
Orange County California.
 
     Discount Rates for Analysis of the Present Value of Future Property Cash
Flows. NationsBanc Montgomery reviewed the factors it considered in selecting a
range of discount rates between 11% and 13% to be applied in the second method
of performing a going concern analysis with respect to the Company's stabilized
portfolio. NationsBanc Montgomery noted that the Company's management and the
1999 Business Plan stated that the estimated cost of equity was 15%. Based on
the assumption that the cost of equity was 15% and using the same capital
structure and cost of debt assumed by Morgan Stanley, NationsBanc Montgomery
noted that the assumptions implied a weighted average cost of capital of 11.8%.
NationsBanc Montgomery further assumed that institutional investors such as
pension funds, who would be the most likely private buyers of a portfolio equal
in size to the Company's portfolio, would apply discounts ranging from 11 to
13%.
 
   
     NationsBanc Montgomery did not apply a capital asset pricing model in its
analysis because it believed that the model was flawed when applied to the real
estate industry, due in part to (a) its use of a correlation between the price
of the Common Stock and the Standard & Poor's stock index over time, since the
index does not allow REITs to be included in the index due to circumstances
surrounding their structure; and (b) the insignificance of the correlation
between the price of the Common Stock and the Standard & Poor's stock index.
    
 
     While the foregoing summary describes all analyses and examinations that
NationsBanc Montgomery deemed material in its preparation of the NationsBanc
Montgomery Reports, it is not a comprehensive description of all analyses and
examinations actually conducted by NationsBanc Montgomery. The preparation of
the NationsBanc Montgomery Reports was not susceptible to partial analysis or
summary description. NationsBanc Montgomery believes that its analyses and the
summary set forth above must be considered as a whole and that selecting
portions of its analyses and of the factors considered, without considering all
analyses and factors, would create an incomplete view of the process underlying
the analyses set forth in its presentations to the Acquiror and The Irvine
Company. In addition, NationsBanc Montgomery may have given various analyses
more or less weight than other analyses, and may have deemed various assumptions
more or less probable than other assumptions. The fact that any specific
analysis has been referred to in the summary above is not meant to indicate that
such analysis was given greater weight than any other analysis. Accordingly, the
ranges of valuations resulting from any particular analysis described above
should not be taken to be NationsBanc Montgomery's view of the actual value of
the Company.
 
     In performing its analyses, NationsBanc Montgomery made numerous
assumptions with respect to industry performance, general business and economic
conditions and other matters, many of which are beyond the control of the
Acquiror, The Irvine Company or the Company. The analyses performed by
NationsBanc Montgomery are not necessarily indicative of actual values or actual
future results, which may be significantly more or less favorable than those
suggested by such analyses. Such analyses were provided to the Acquiror and The
Irvine Company in connection with the delivery of the NationsBanc Montgomery
Reports. The analyses do not purport to be appraisals or to reflect the prices
at which a company might actually be sold or the prices at which any securities
may trade at any time in the future.
                                       40
<PAGE>   48
 
     As described above, the NationsBanc Montgomery Reports and NationsBanc
Montgomery's presentations to the Acquiror and The Irvine Company were among a
number of factors taken into consideration by the Acquiror and The Irvine
Company in making their determination to make the proposal set forth in the
December 1 Letter and to approve the Merger.
 
     Upon execution of the Acquiror Engagement Letter, The Irvine Company agreed
to pay NationsBanc Montgomery a retainer fee of $250,000. In addition, The
Irvine Company agreed to pay NationsBanc Montgomery a transaction fee contingent
on the consummation of certain transactions of the Company, including the
Merger. The retainer fee will be credited against any transaction fee. The
Acquiror Engagement Letter also calls for The Irvine Company to reimburse
NationsBanc Montgomery for its reasonable out-of-pocket expenses. Pursuant to a
separate letter agreement, The Irvine Company has agreed to indemnify
NationsBanc Montgomery, its affiliates, and their respective partners,
directors, officers, employees and controlling persons against certain
liabilities, including liabilities under the federal securities laws.
 
     In the ordinary course of its business, NationsBanc Montgomery actively
trades the equity securities of the Company for its own account and for the
accounts of customers and, accordingly, may at any time hold a long or short
position in such securities. NationsBanc Montgomery has also acted as an
underwriter in connection with public offerings of the Company's securities and
has performed various investment banking services for the Company. NationsBanc
Montgomery's ultimate parent corporation, BankAmerica Corporation, and its
affiliates have commercial lending relationships with each of The Irvine Company
and the Company; additionally, Bank of America has agreed to provide funding to
the Acquiror and The Irvine Company in connection with the Merger.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER; CERTAIN COMPANY BENEFIT PLANS
 
   
     General. In considering the recommendation of the Special Committee and the
Board of Directors, Shareholders should be aware that the officers and Directors
of the Company may have interests in the Merger or relationships, including
those referred to below, that may present potential or actual conflicts of
interest in connection with the Merger. The Special Committee and the Board of
Directors were aware of these potential or actual conflicts of interest and
considered them along with other matters described under "-- Recommendation of
the Special Committee and the Board of Directors; Fairness of the Merger." See
also "Certain Relationships and Transactions."
    
 
     Treatment of Options and Restricted Stock Units; Retention Letters. Certain
Directors have received options ("Director Options") to acquire Common Stock
pursuant to the Company's 1993 Stock Option Plan for Directors (the "Director
Plan") and certain officers and employees of the Company and its affiliates have
received options ("Employee Options") to acquire Common Stock and restricted
stock units ("Units") pursuant to the Company's 1993 Long-Term Stock Incentive
Plan (the "1993 Plan") and the Company's 1996 Long-Term Stock Incentive Plan
(the "1996 Plan" and, together with the Director Plan and the 1993 Plan, the
"Plans"). The Director Options and the Employee Options are together referred to
as the "Options," and the Directors and the officers and employees of the
Company and its affiliates are together referred to as "Holders." In addition,
Mr. McFarland has the right, under certain circumstances, to receive future
grants of restricted stock units ("Future Units") pursuant to the terms of the
July 14, 1997 employment offer letter agreement between the Company and Mr.
McFarland (the "McFarland Agreement"). Capitalized terms not otherwise defined
in this subsection only have the respective meanings set forth in the Retention
Letters (as defined below).
 
   
     Pursuant to the Merger Agreement, the Company will take all actions
necessary to assure that, prior to the time the Merger becomes effective (the
"Effective Time"), each outstanding Option and each Unit (and any dividend
equivalents relating thereto) (and each right to any award under the Plans) will
be canceled. The Merger Agreement provides that the Company will take all
actions necessary to assure that, prior to the Effective Time, each Holder will
be entitled to receive a cash amount equal to the excess of $34.00 over the
exercise price for each share of Common Stock subject to the Option, payable at
the Effective Time for a vested Option or a portion of an Option. All Director
Options are fully vested. All unvested Employee Options held by any Holder not a
party to a Retention Letter (as defined below) will be canceled. Each other
    
 
                                       41
<PAGE>   49
 
   
Employee Option will be canceled according to the terms of the letter agreements
dated as of January 22, 1999 between the Company and the Holder of such Employee
Option or Unit (the "Retention Letters"), which were authorized by the Special
Committee on December 22, 1998. In the case of an Employee Option, the Retention
Letters provide that each Holder will be entitled to receive a cash amount equal
to the excess of $34.00 over the exercise price for each share of Common Stock
subject to the Option, payable at the Effective Time if then vested, or at the
time such Option or portion of an Option would otherwise have vested according
to the relevant award agreement. In the case of a Unit, the Retention Letters
provide that each Holder will be entitled to receive a cash amount equal to
$34.00 per Unit, payable at the time such Unit would otherwise have been
available for vesting according to the relevant award agreement, assuming the
achievement of all applicable performance targets for the relevant periods. In
the case of Mr. McFarland's Future Units, his Retention Letter provides that he
will be entitled to receive a cash amount equal to $34.00 per Future Unit,
payable at the time the restricted stock units with respect to such Future Unit
would otherwise have been available for vesting according to the McFarland
Agreement, assuming that restricted stock units had been granted to Mr.
McFarland in accordance with the terms of the McFarland Agreement. It is a
condition of payment with respect to both Options and Units (and Future Units)
that the Holder remain continuously employed by the Company until the respective
payment dates, except as otherwise described below. The Unit amounts (and the
Future Unit amounts) will bear interest from the Effective Time (or, in the case
of the Future Unit amounts, from February 1 of the scheduled year of grant of
the restricted stock units) to the relevant payment date, payable on the last
day of each calendar quarter, at the annual rate of 5% through February 29,
2000, and 6% from March 1, 2000 until the date such Unit (or in the case of such
Future Unit, the date the restricted stock unit with respect to such Future
Unit) would have been available for vesting or, if sooner, until payment for
such Units (or Future Units) is accelerated in accordance with the Retention
Letters. Interest will be payable in cash as promptly as practicable following
each interest payment date.
    
 
     Pursuant to the Retention Letters, in the event that a Holder's employment
is terminated involuntarily by the Company without Cause or by the Holder for
Good Reason prior to the relevant payment date, payment for unvested Options and
Units (and Future Units) will be accelerated and made within 10 days after such
employment termination date.
 
                                       42
<PAGE>   50
 
     The table below shows the Options and Units (and Future Units) currently
held by each of the Company's executive officers and Directors (and all other
individuals as a group) and the amounts in respect of such Options and Units
(and Future Units) such individuals (and such group) will be entitled to receive
at the Effective Time and in the future (not including interest). All amounts to
be paid at the Effective Time relate to vested Options.
 
   
<TABLE>
<CAPTION>
                                                                        PAYMENT AT         POTENTIAL
                                            OPTIONS    OUTSTANDING      EFFECTIVE            FUTURE
                   NAME                     GRANTED     UNITS(1)           TIME             PAYMENTS
                   ----                     -------    -----------    --------------    ----------------
                                                                                (IN THOUSANDS)
<S>                                         <C>        <C>            <C>               <C>
Independent Directors:
Anthony M. Frank..........................   10,500           --         $  132.1           $     --
John F. Grundhofer........................    3,500           --             16.9                 --
Bowen H. McCoy............................   10,500           --            132.1                 --
Jack W. Peltason..........................   10,500           --            132.1                 --
John F. Seymour, Jr.......................   10,500           --            132.1                 --
 
Executive Officers:
William H. McFarland......................  100,000      104,500            150.0            3,853.0
William W. Thompson.......................   45,000       20,000            175.2              781.0
Richard E. Lamprecht......................   68,500       16,000            643.2              629.8
Bruce N. Dorfman..........................   30,000        8,000             62.9              326.6
Rudy A. Svrcek............................   10,000       10,000               --              381.9
Scott A. Reinert..........................   32,000        8,000            265.5              308.7
Shawn Howie...............................   65,000        4,000            903.3              160.8
 
All Other Individuals As a Group..........  202,000       22,000          1,039.2            1,197.5
</TABLE>
    
 
- ---------------
 
   
(1) Represents Units that have been granted except in Mr. McFarland's case where
    it represents Units granted as well as Future Units.
    
 
   
     Termination Protection and Severance. Messrs. McFarland, Thompson,
Lamprecht, Svrcek, Reinert and Howie (each, an "executive") also entered into
termination protection and severance arrangements with the Company set forth in
their Retention Letters, which provide that, in addition to the above-mentioned
treatment of Options and Units (and Future Units, in Mr. McFarland's case), an
executive whose employment is terminated involuntarily by the Company without
Cause, or by himself for Good Reason within eighteen months following the
Merger, will be entitled to one year's base salary at the rate in effect at
either (i) the time of his termination of employment or (ii) the Effective Time,
whichever is higher. Such amount will be paid to the executive in a lump sum,
without reduction for the time value of money, as soon as practicable, but in
any event within 10 days, after the date of his termination of employment. The
severance benefits payable under the Retention Letters depend on the effective
rate of the base salary applicable to an executive at the time of his
termination of employment. Therefore, the severance amount payable to an
executive is not precisely determinable. However, assuming termination at
current levels of base salaries, the amounts that would be payable to Messrs.
McFarland, Thompson, Lamprecht, Svrcek, Reinert and Howie would be $400,000,
$275,000, $200,000, $175,000, $175,000 and $165,000, respectively.
    
 
     The Retention Letters also provide that the Company will bear the legal
fees and expenses incurred by an employee to remedy a breach of the terms of the
Retention Letters by the Company, unless the employee's claim is determined by a
court or arbitrator to be without merit.
 
     Indemnification and Insurance. Pursuant to the Merger Agreement, for six
years after the Effective Time, the Acquiror will cause the Surviving Company to
indemnify and hold harmless the present and former officers and Directors of the
Company in respect of acts or omissions occurring prior to the Effective Time to
the extent provided under the Company's Articles of Incorporation and by-laws in
effect on the date of the Merger Agreement. For six years after the Effective
Time, the Acquiror will cause the Surviving Company to provide officers' and
directors' liability insurance in respect of acts or omissions occurring prior
to the Effective
 
                                       43
<PAGE>   51
 
Time covering each such person currently covered by the Company's officers' and
directors' liability insurance policy on terms with respect to coverage and
amount no less favorable than those of such policy in effect on the date. See
also "The Merger -- Additional Agreements."
 
   
     Position of Executive Officers, Directors and Affiliates of the
Company. Certain executive officers, Directors and affiliates of the Company
hold shares of Common Stock. See "Securities Ownership" and the Company's Annual
Report on Form 10-K/A for the year ended December 31, 1998. After inquiry of
these Shareholders, the Company believes that they intend to vote their shares
in favor of the Merger. Except as otherwise set forth in this Proxy Statement
(with respect to the Acquiror and its affiliates), such Shareholders have not
informed the Company of the reasons for their vote.
    
 
CERTAIN CONSEQUENCES OF THE MERGER
 
     Pursuant to the Merger Agreement, following approval and adoption of the
Merger Proposal and subject to the fulfillment or waiver of certain conditions,
the Company will be merged with and into the Acquiror, and the Acquiror will
continue as the Surviving Company in the Merger.
 
     The Acquiror will continue in existence as the Surviving Company and,
without further transfer, succeed to and possess all of the rights, privileges
and powers of the Company, and all of the assets and property of whatever kind
and character of the Company will vest in the Acquiror without further act or
deed; thereafter, the Acquiror, as the Surviving Company, will be liable for all
of the liabilities and obligations of the Company and any claim or judgment
against the Company may be enforced against the Acquiror.
 
     Therefore, following the Merger, the Nonaffiliated Shareholders will cease
to participate in future earnings or growth, if any, of the Company or benefit
from any increases, if any, in the value of the Company, and they no longer will
bear the risk of any decreases in the value of the Company. Because the Common
Stock will be canceled as a result of the Merger, the Common Stock will be
delisted from the NYSE.
 
   
     Distributions by the Surviving Company after completion of the Merger
(other than any distribution for which the record date is a date prior to the
date of completion of the Merger) will be paid to the members of the Surviving
Company and not to the Nonaffiliated Shareholders. The rate of distributions
after completion of the Merger is expected to correspond to the rate of
distributions by the Operating Partnership after completion of the Merger, and
may be greater than the rate of dividends presently paid by the Company.
    
 
   
     The Common Stock is currently registered under the Securities Exchange Act
of 1934 (the "Exchange Act"). Following the Merger, the Common Stock will become
eligible for termination of registration pursuant to Section 12(g)(4) of the
Exchange Act, and its registration under the Exchange Act will be terminated.
The Company's obligation to file reports pursuant to Section 15(d) of the
Exchange Act will be suspended. In addition, the Company will be relieved of its
obligation to comply with other requirements of the Exchange Act, including the
proxy rules of Exchange Act Regulation 14A, the short-swing trading profits
provision of Exchange Act Section 16 and, with respect to future transactions
involving the Company, the "going private" provisions of Exchange Act Rule
13e-3. Accordingly, less information will be required to be made publicly
available than presently is the case. However, the Operating Partnership and IAC
Capital Trust will continue to be reporting companies.
    
 
     At the Effective Time, certain unexercised options to purchase Common Stock
pursuant to certain stock option plans in which certain Company employees and
Directors participate will be converted into cash and rights to future cash
payments. See "-- Interests of Certain Persons in the Merger; Certain Company
Benefit Plans."
 
     The officers of the Acquiror immediately prior to the Merger will be the
executive officers of the Surviving Company immediately after the Merger. The
certificate of formation and limited liability company agreement of the Acquiror
in effect immediately prior to the Merger will be the certificate of formation
and limited liability company agreement of the Surviving Company immediately
after the Merger.
 
     The Company is party to certain agreements with The Irvine Company
(including the Land Rights Agreement and the Miscellaneous Rights Agreement).
There can be no assurance that the Surviving
 
                                       44
<PAGE>   52
 
Company and The Irvine Company will not terminate any of these agreements or
that any of these agreements will otherwise remain in effect following the
Merger, or that the Surviving Company will continue to enjoy the benefits of
these agreements.
 
PLANS FOR THE COMPANY AFTER THE MERGER
 
   
     Except as otherwise described in this Proxy Statement, the Company has not,
and the Company has been advised by the Acquiror that neither the Acquiror nor
The Irvine Company has, as of the date of this Proxy Statement, approved any
specific plans or proposals for any extraordinary corporate transaction
involving the Surviving Company after the completion of the Merger or any sale
or transfer of a material amount of assets currently held by the Company after
the completion of the Merger. The Company has been advised by the Acquiror that
it is the Acquiror's and The Irvine Company's intention to hold the assets for
long term investment. Although the Acquiror deems it unlikely, it reserves the
right to change its plan at any time, and the Acquiror may elect to sell,
transfer or otherwise dispose of all or any portion of the assets currently held
by the Company to one or more of its affiliates or to any other parties as
warranted by future conditions. In addition, the Company has been advised by the
Acquiror and The Irvine Company that they currently plan to retain the members
of senior management of the Company, each of whom is also a member of senior
management of the Operating Partnership, in their current positions with the
Operating Partnership after the Merger. The Irvine Company and the Acquiror
reserve the right to make whatever personnel changes with respect to the current
members of management of the Company it deems necessary after completion of the
Merger. As of the date hereof, no employment agreement has been entered into
between any member of management of the Company and the Acquiror or The Irvine
Company.
    
 
     The Company has been advised by the Acquiror that the Acquiror's and The
Irvine Company's present intention is to retain all existing public and
tax-exempt debt securities and preferred limited partnership units in the
Operating Partnership and preferred securities of IAC Capital Trust.
Furthermore, the Acquiror intends to seek reaffirmation of the existing
investment grade ratings for these securities. The Acquiror's plans are subject
to revision based on feedback from the rating agencies, or otherwise, and the
Acquiror reserves the right to effect such revisions. There can be no assurance
that any rating agencies will reaffirm current investment grade ratings for any
of the aforementioned securities.
 
CONDUCT OF THE BUSINESS OF THE COMPANY IF THE MERGER IS NOT CONSUMMATED
 
     If the Merger is not consummated, the business and operations of the
Company are expected to continue to be conducted substantially as currently
conducted. The Company anticipates that The Irvine Company would continue to be
a substantial Shareholder and to have the right to nominate three out of the
nine members of the Board of Directors.
 
   
MATERIAL TAX CONSEQUENCES
    
 
     The exchange of Common Stock for cash by a Shareholder in the Merger will
be a taxable transaction under the Code and may also be a taxable transaction
under state and local and other tax laws.
 
     In general, a Shareholder will recognize gain or loss equal to the
difference between the tax basis of his or her Common Stock and the amount of
cash received in exchange therefor. Such gain or loss will be capital gain or
loss if the Common Stock is a capital asset in the hands of the Shareholder and
will be long-term gain or loss if the Shareholder has held the Common Stock for
more than one year as of the Effective Time. These rules may not apply to
Shareholders who acquired their Common Stock pursuant to the exercise of stock
options or other compensation arrangements with the Company or who are not
citizens or residents of the United States or who are otherwise subject to
special tax treatment under the Code.
 
     For United States tax purposes the Merger will be treated as if the Company
sold all of its assets, including its interests in real property, to the
Acquiror and then liquidated. Under the Foreign Investment in Real Property Tax
Act of 1980 ("FIRPTA"), a Foreign Shareholder will be subject to (i) United
States federal income tax at regular graduated rates on the amount of the Merger
proceeds that is distributed to such Foreign Shareholder and is attributable to
gains on the disposition of the Company's real property and other
 
                                       45
<PAGE>   53
 
"United States real property interests," and (ii) withholding in respect of this
tax at a rate of 35% of that amount. A "Foreign Shareholder" is a person or
entity that, for United States federal income tax purposes, is a non-resident
alien individual, a foreign corporation, a foreign partnership, or a foreign
estate or trust.
 
     If the Common Stock is treated as a "United States real property interest,"
then under FIRPTA a Foreign Shareholder will be subject to (i) United States
federal income tax at regular graduated rates on gain recognized on the
disposition of Common Stock pursuant to the Merger, and (ii) withholding in
respect of this tax at a rate of 10% of (x) the amount realized in the Merger,
less (y) any amount subject to 35% withholding as described above. In general,
the gain recognized on the disposition of Common Stock would not be subject to
this tax if (i) the Company is a "domestically controlled REIT" within the
meaning of the Code or (ii) the Common Stock is regularly traded on an
established securities market within the meaning of the Code and the Foreign
Shareholder does not own, actually or constructively under attribution rules
provided in the Code, in excess of 5% of the fair market value of all Common
Stock outstanding at any time during the shorter of the five-year period
preceding the Merger or the Foreign Shareholder's holding period. The Company
believes that the Common Stock is regularly traded on an established securities
market within the meaning of the Code and will endeavor to determine whether it
continues to be so traded and whether the Company is a "domestically controlled
REIT" as of the Effective Time. Foreign Shareholders are urged to consult their
tax advisors concerning the potential applicability of these provisions and the
consequences of a sale or other disposition of their Common Stock in advance of
the Merger.
 
     To avoid FIRPTA withholding, non-Foreign Shareholders must certify under
penalties of perjury their non-foreign status by completing the certification
form that will be included with the letter of transmittal after the proposed
Merger.
 
     The exchange of Common Stock for cash by a Shareholder will be reported to
the Internal Revenue Service. "Backup" withholding at a rate of 31% will apply
to payments made to a non-Foreign Shareholder (other than a corporation or any
other exempt non-Foreign Shareholder) unless the non-Foreign Shareholder
furnishes its taxpayer identification number in the manner prescribed in
applicable Treasury regulations, certifies that such number is correct,
certifies as to no loss of exemption from backup withholding and meets certain
other conditions. A Foreign Shareholder will be exempt from backup withholding
provided that certain certification requirements are satisfied. Payment of the
proceeds from the disposition of the Common Stock to or through the United
States office of a broker is subject to information reporting and backup
withholding unless the Shareholder establishes an exemption from information
reporting and backup withholding.
 
   
     Any amounts withheld from a Shareholder under the withholding rules
described above will be allowed as a refund or a credit against such
Shareholder's United States federal income tax liability, provided the required
information is furnished to the Internal Revenue Service on a timely basis.
    
 
     THE FEDERAL INCOME TAX DISCUSSION SET FORTH ABOVE IS INCLUDED FOR GENERAL
INFORMATION ONLY AND IS BASED UPON PRESENT LAW. DUE TO THE INDIVIDUAL NATURE OF
TAX CONSEQUENCES, SHAREHOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS AS TO THE
SPECIFIC TAX CONSEQUENCES TO THEM OF THE MERGER, INCLUDING THE EFFECTS OF
APPLICABLE STATE, LOCAL OR OTHER TAX LAWS.
 
LITIGATION REGARDING THE MERGER
 
   
     Shortly after the public announcement of the proposed business combination
set forth in the December 1 Letter, certain lawsuits were initiated by
Shareholders against The Irvine Company, the Acquiror, the Company and the
Company's Directors alleging, among other things, that the price offered by the
Acquiror for the shares held by the Nonaffiliated Shareholders was inadequate,
that the Directors failed to take adequate steps to obtain the highest possible
price for the Nonaffiliated Shareholders and that negotiations were not
conducted at arm's-length. As of March 29, 1999, four purported class actions
relating to the acquisition offer had been served; each of these actions was
filed in the Superior Court of California, Orange County, on behalf of a
plaintiff Shareholder and a purported class of all Nonaffiliated Shareholders.
Although these lawsuits seek injunctive relief and unspecified money damages, no
motions seeking to enjoin the Merger or the Special Meeting have been filed. The
Acquiror and The Irvine Company, on the one hand, and the Company, the Board of
Directors and the Special Committee, on the other hand, each believe that their
    
 
                                       46
<PAGE>   54
 
   
respective actions in connection with the proposed Merger have been in
accordance with applicable Maryland and other law (based on each party's
consultation with legal counsel, including Maryland legal counsel).
    
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for by the Acquiror under the "purchase"
method of accounting in accordance with generally accepted accounting
principles. Therefore, the Acquiror will treat the Merger as a purchase of an
approximately 83% interest in the Company.
 
                                       47
<PAGE>   55
 
                                   THE MERGER
 
     The following is a summary of the material provisions of the Merger
Agreement. The following summary does not purport to be complete and is
qualified in its entirety by reference to the Merger Agreement which is attached
as Appendix A to this Proxy Statement and is incorporated herein by reference.
Shareholders are urged to read the Merger Agreement in its entirety and to
consider it carefully. Capitalized terms not otherwise defined in the following
summary have the respective meanings set forth in the Merger Agreement.
 
THE MERGER
 
     The Merger Agreement provides for the merger of the Company with and into
the Acquiror. The Acquiror will be the Surviving Company, and it will continue
its limited liability company existence under the laws of the State of Delaware.
At the Effective Time, the separate corporate existence of the Company will
cease. The Surviving Company will possess all the rights, privileges,
immunities, powers and purposes of the Company, and it will assume and become
liable for all liabilities and obligations of the Company.
 
MERGER CONSIDERATION
 
   
     In the Merger, each outstanding share of Common Stock will be converted, by
virtue of the Merger and without any action on the part of the Shareholders,
into the right to receive $34.00 in cash per share. The Merger Consideration was
determined as the result of arm's-length negotiations between the Special
Committee and the Acquiror. See "Background; Purpose and Effects of the
Merger -- Background of the Merger," "-- The Acquiror's Purpose; Structure of
the Merger," "-- Recommendation of the Special Committee and the Board of
Directors; Fairness of the Merger" and "-- Opinion of the Financial Advisor for
the Special Committee."
    
 
EFFECTIVE TIME
 
   
     The Effective Time will be 5:00 p.m. New York City time on the later to
occur of (i) the filing with and acceptance for record of the Articles of Merger
by the Maryland State Department of Assessments and Taxation and (ii) the filing
of the Certificate of Merger with the Secretary of State of Delaware. The
Articles of Merger and the Certificate of Merger will be filed as soon as
practicable after the requisite approval and adoption of the Merger Proposal by
the Shareholders at the Special Meeting are obtained and the other conditions
precedent to the consummation of the Merger have been satisfied, or, if legally
permissible, waived. See "-- Conditions."
    
 
EXCHANGE AND PAYMENT PROCEDURES
 
     As soon as practicable after the Effective Time, the Exchange Agent will
mail to each record holder of an outstanding certificate representing Common
Stock immediately prior to the Effective Time, a letter of transmittal and
instructions for use in effecting the surrender of such certificate in exchange
for the Merger Consideration. Upon surrender to the Exchange Agent of a
certificate representing Common Stock, 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
$34.00 in cash per share. Until surrendered in accordance with the foregoing
instructions, each certificate representing Common Stock will represent for all
purposes only the right to receive the Merger Consideration.
 
     SHAREHOLDERS SHOULD NOT SEND THEIR COMMON STOCK CERTIFICATES NOW; THEY
SHOULD SEND THEM ONLY PURSUANT TO INSTRUCTIONS SET FORTH IN LETTERS OF
TRANSMITTAL TO BE MAILED TO SHAREHOLDERS AS SOON AS PRACTICABLE AFTER THE
EFFECTIVE TIME. IN ALL CASES, THE MERGER CONSIDERATION WILL BE PROVIDED ONLY IN
ACCORDANCE WITH THE PROCEDURES SET FORTH IN THIS PROXY STATEMENT, THE MERGER
AGREEMENT AND SUCH LETTERS OF TRANSMITTAL.
 
     The Company and the Acquiror strongly recommend that certificates
representing Common Stock and letters of transmittal be transmitted only by
registered United States mail, return receipt requested, appropriately insured.
Shareholders whose certificates are lost will be required at the holder's
expense to furnish a lost certificate affidavit and bond acceptable in form and
substance to the Exchange Agent.
 
                                       48
<PAGE>   56
 
     Any Merger Consideration made available to the Exchange Agent that remains
unclaimed by Shareholders for six months after the Effective Time will be
delivered to the Acquiror, and any Shareholders who have not theretofore made an
exchange must thereafter look to the Acquiror for payment of their claim for
Merger Consideration.
 
     The Acquiror will pay all charges and expenses of the Exchange Agent in
connection with the Merger and the payment and issuance of the Merger
Consideration.
 
     Any questions concerning exchange and payment procedures and requests for
letters of transmittal may be addressed to EquiServe, L.P., the Exchange Agent.
 
TRANSFER OF COMMON STOCK
 
     No transfer of Common Stock will be made on the stock transfer books of the
Company after the Effective Time. If, at or after the Effective Time,
certificates of Common Stock are presented, they will be canceled and exchanged
for the right to receive $34.00 in cash per share as provided in "-- Exchange
and Payment Procedures."
 
ADDITIONAL AGREEMENTS
 
     The Company and the Acquiror have agreed in the Merger Agreement to prepare
and file with the Commission this Proxy Statement and the Schedule 13E-3 and
otherwise use all reasonable efforts to cause this Proxy Statement and the
Schedule 13E-3 to be mailed to the Shareholders at the earliest practicable
date. The Company and the Acquiror have agreed to cooperate with each other and
use their reasonable efforts to take or cause to be taken all actions, and do or
cause to be done all things, necessary, proper or advisable on their part under
the Merger Agreement and applicable laws to consummate and make effective the
Merger and the other transactions contemplated by the Merger Agreement as soon
as practicable.
 
     The Merger Agreement provides that the Company will (i) as soon as
practicable, call and convene the Special Meeting for the purpose of obtaining
the required Shareholder approvals and (ii) through the Board of Directors and
the Special Committee, recommend to the Shareholders that they approve the
Merger Proposal and will not withdraw, modify or change such recommendation, or
recommend any other offer or proposal, at any time prior to the conclusion of
the Special Meeting. Notwithstanding the foregoing, the Special Committee or the
Board of Directors (with the concurrence of the Special Committee) may at any
time prior to the Effective Time withdraw, modify or change any recommendation
regarding the Merger or the Merger Agreement, or recommend any other offer or
proposal, if the Special Committee or the Board of Directors (with the
concurrence of the Special Committee), after consultation with its counsel,
determines that taking any such action is required in accordance with its duties
to the Shareholders under applicable law.
 
     The Merger Agreement provides that (i) the Company will afford the
representatives of the Acquiror reasonable access to its and its subsidiaries'
properties, books, contracts, commitments and records and (ii) each of the
Company and the Acquiror will cooperate with each other and use its reasonable
efforts to take or cause to be taken all actions, and do or cause to be done all
things, necessary, proper or advisable on their part under the Merger Agreement
and applicable laws to consummate and make effective the Merger and the other
transactions contemplated by the Merger Agreement as soon as practicable.
 
     Pursuant to the Merger Agreement, the Company has agreed to take all
actions necessary to assure that, prior to the Effective Time, (i) each
outstanding Option, Unit and Future Unit is canceled; (ii) each Plan is
terminated; and (iii) no holder of an Option, Unit, Future Unit or other award
will have a right to acquire an interest in the Company or the Acquiror as a
result of the exercise of such Option, Unit, Future Unit or other award at or
after the Effective Time.
 
     The Merger Agreement provides that the Company will not, directly or
indirectly, (i) solicit, knowingly encourage, initiate or participate in any
negotiations, inquiries or discussions with respect to any offer or proposal to
acquire all or any part of its business, assets or capital shares whether by
merger, consolidation, other business combination, purchase of assets, tender
offer or exchange offer or otherwise (each of the foregoing, an "Acquisition
Proposal"); (ii) disclose, in connection with an Acquisition Proposal, any
 
                                       49
<PAGE>   57
 
information or provide access to its properties, books or records, except as
required by law or pursuant to a governmental request for information; (iii)
enter into or execute any agreement relating to an Acquisition Proposal; or (iv)
make or authorize any public statement, recommendation or solicitation in
support of any Acquisition Proposal other than with respect to the Merger.
Notwithstanding the foregoing, the Special Committee, on behalf of the Company,
may undertake to engage in certain of the above prohibited acts in connection
with a Superior Proposal.
 
     The Acquiror and the Company have also agreed to take certain actions with
regard to compliance with withholding obligations, development of a joint
communications plan, directors' and officers' liability protections and the
payment of previously declared but unpaid dividends.
 
CONDUCT OF BUSINESS PENDING THE MERGER
 
     Pursuant to the Merger Agreement, from February 1, 1999 to the Effective
Time, the Company and its subsidiaries must carry on their respective businesses
in the usual, regular and ordinary course in all material respects, in
accordance with past practice, and must use all reasonable efforts to preserve
intact their present business organizations and preserve their relationships
with customers, suppliers and others having business dealings with them.
 
     In addition, generally the Company may not, and may not permit any of its
subsidiaries to:
 
     - adjust, split, combine or reclassify any stock, or make, declare or pay
       any dividend on, or purchase or otherwise acquire, any of its stock or
       any securities or obligations convertible into or exchangeable for any
       shares of its stock, voting securities or other ownership interests, or
       grant any stock appreciation rights or grant any individual or entity any
       right, warrant or option to acquire any shares of its stock, voting
       securities or other ownership interests, except for: (A) distributions on
       Series A Preferred Securities of IAC Capital Trust not to exceed the
       greater of (1) the rate required by the terms thereof and (2) the minimum
       rate required for IAC Capital Trust to maintain its status as a REIT; (B)
       regular quarterly distributions on preferred limited partnership
       interests in the Operating Partnership at the rates required by the terms
       thereof; (C) regular quarterly distributions on common partnership
       interests in the Operating Partnership at the rates recently paid by the
       Operating Partnership; (D) regular quarterly distributions on Common
       Stock not to exceed the greater of (1) $.385 per share and (2) the
       minimum rate required for the Company to maintain its status as a REIT;
       provided that the record dates for the 1999 second and third quarter
       distributions shall not be earlier than June 15, 1999 and September 15,
       1999, respectively; and (E) payment of dividend equivalents with respect
       to Units, or repurchase, redeem or otherwise acquire any shares of its
       stock or any stock, voting securities or ownership interests in any of
       its subsidiaries;
 
     - subject to certain exceptions, issue, deliver or sell, or authorize or
       propose the issuance, delivery or sale of, any equity securities of the
       Company or any of its subsidiaries, or enter into any agreement with
       respect to any of the foregoing, or amend any equity-related awards
       issued pursuant to any of the Plans;
 
     - amend its Articles of Incorporation or by-laws (or other governing
       documents), except as contemplated by the Merger Agreement;
 
     - subject to certain exceptions, sell, transfer, mortgage, lease, pledge,
       encumber or otherwise dispose of material properties or assets outside
       the ordinary course of business;
 
     - subject to certain exceptions, merge, consolidate or make any
       acquisitions;
 
     - enter into or terminate any material contracts;
 
     - incur additional indebtedness, make any loan or discharge any obligation;
 
   
     - increase the compensation payable to any of its officers or employees or
       grant additional severance or termination pay other than in the ordinary
       course of business and in accordance with past practice, or grant awards
       under any of the Plans or amend, accelerate, modify or take any action
       with respect to any award under any of the Plans except as described in
       "Background; Purpose and Effects of the
    
 
                                       50
<PAGE>   58
 
   
       Merger -- Interests of Certain Persons in the Merger; Certain Company
       Benefit Plans" above or otherwise in accordance with the Company's
       contractual obligations in respect of any such awards;
    
 
     - subject to certain exceptions, make or rescind any material tax election,
       settle any material tax claims or make any material change in its
       accounting methods, principles or practices;
 
     - pay, discharge, settle or satisfy any claims, liabilities or obligations,
       other than in the ordinary course of business in accordance with past
       practice; or
 
     - take any action that would result in any of its representations or
       warranties set forth in the Merger Agreement becoming materially untrue
       or any of the conditions to the Merger not being satisfied.
 
     Pursuant to the Merger Agreement, each party has agreed:
 
     - to confer with the other party on a regular basis and report on
       operational matters; and
 
     - to give prompt notice to the other of (i) any representation or warranty
       made by it in the Merger Agreement becoming untrue or inaccurate in any
       material respect, (ii) the failure by it to comply with or satisfy in any
       material respect any covenant, condition or agreement required to be
       complied with or satisfied by it under the Merger Agreement or (iii) any
       change, event or circumstance that has had or would have a Material
       Adverse Effect on the Company or materially adversely affect any party's
       ability to consummate the Merger in a timely manner.
 
     The Merger Agreement further provides that the Company and its subsidiaries
and the Acquiror will file all reports required to be filed by each of them with
the Commission (and all other Governmental Entities) between the date of the
Merger Agreement and the Effective Time and will deliver to the other party
copies of all such reports promptly after the same are filed. Subject to
applicable laws relating to the exchange of information, each of the Company and
the Acquiror will have the right to review in advance, and to the extent
practicable each will consult with the other, with respect to all the
information relating to the other party and each of their respective
subsidiaries, which appears in any filings, announcements or publications in
connection with the transactions contemplated by the Merger Agreement.
 
REPRESENTATIONS AND WARRANTIES
 
   
     The material representations and warranties of the Company to the Acquiror
contained in the Merger Agreement relate to the following matters:
    
 
     - the due organization and valid existence of the Company and its
       subsidiaries and similar corporate matters;
 
     - the capitalization of the Company and its subsidiaries;
 
     - the due authorization, execution and delivery of the Merger Agreement by
       the Company and its binding effect on the Company;
 
     - the lack of required regulatory filings and approvals for the
       consummation of the Merger, and the lack of conflicts between the Merger
       Agreement (and the transactions contemplated thereby) and the Company's
       Articles of Incorporation or by-laws, contracts to which it or its
       subsidiaries are parties, or any law, rule, regulation, order or decree
       applicable to the Company or its subsidiaries;
 
     - the accuracy of the Company's Commission filings and financial
       statements;
 
     - the accuracy of the information provided by the Company for inclusion in
       this Proxy Statement and the Schedule 13E-3;
 
     - compliance with applicable laws;
 
   
     - the absence of current litigation or actions pending or threatened in
       connection with the Company's business, the Merger or Merger Agreement;
    
 
                                       51
<PAGE>   59
 
   
     - the Company's payment of, or provision of adequate reserve for, tax
       liabilities, the Company's compliance with tax return filing
       requirements, the Company's and IAC Capital Trust's qualification as a
       REIT under the Code and the treatment of the Operating Partnership, and
       each subsidiary of the Company that is a partnership, as a partnership
       for federal income tax purposes;
    
 
     - employee benefit plans, labor matters, severance and change of control
       agreements;
 
   
     - the ownership of, encumbrances on, and restrictions relating to, the
       Company's properties;
    
 
   
     - the Company's exposure to environmental liabilities and compliance with
       environmental laws;
    
 
   
     - the material contracts and indebtedness of the Company and its
       obligations thereunder;
    
 
   
     - the absence of any event that has or could reasonably be expected to have
       a material adverse effect on the Company;
    
 
     - the vote required to approve the Merger under the Company's Articles of
       Incorporation or by-laws or applicable law;
 
   
     - the Company's disclosure of all of its material arrangements with its
       subsidiaries, control persons and affiliates;
    
 
     - the inapplicability to the Merger of certain provisions of state takeover
       law;
 
     - the absence of brokers and finders (other than Morgan Stanley) engaged by
       the Company who would be entitled to payment in connection with the
       Merger; and
 
     - the receipt by the Board of Directors of Morgan Stanley's Opinion.
 
     These representations and warranties are subject, in certain cases, to
specified exceptions and qualifications.
 
     The Merger Agreement also contains representations and warranties of the
Acquiror to the Company, including with respect to the following matters:
 
     - the due organization and valid existence of the Acquiror and similar
       corporate matters;
 
     - the due authorization, execution and delivery of the Merger Agreement by
       the Acquiror and its binding effect on the Acquiror;
 
     - the lack of required regulatory filings and approvals for the
       consummation of the Merger, and the lack of conflicts between the Merger
       Agreement (and the transactions contemplated thereby) and the certificate
       of formation or limited liability company agreement of the Acquiror,
       contracts to which it is a party, or any law, rule, regulation, order or
       decree applicable to the Acquiror;
 
     - the Acquiror's access to funds sufficient to consummate the transactions
       contemplated by the Merger Agreement;
 
     - the accuracy of the information provided by the Acquiror or any of its
       affiliates for inclusion in this Proxy Statement and the Schedule 13E-3;
       and
 
     - the absence of brokers and finders entitled to payment from the Company.
 
     These representations and warranties are subject, in certain cases, to
specified exceptions and qualifications.
 
CONDITIONS
 
   
     The obligations of the Company and the Acquiror to consummate the Merger
are subject to the satisfaction at or prior to the Effective Time of the
following conditions:
    
 
     - the obtaining of the affirmative vote of the holders of two-thirds of the
       total number of outstanding shares of Common Stock in favor of the Merger
       Proposal;
 
                                       52
<PAGE>   60
 
   
     - the obtaining of the affirmative vote of the holders of a number of
       shares of Common Stock (excluding the shares held by the Acquiror and its
       affiliates) representing a majority of the total number of outstanding
       shares of Common Stock in favor of the Merger Proposal (unless waived by
       both parties (in the case of the Company, the determination as to the
       waiver may be made only by the Special Committee on behalf of the
       Company)); and
    
 
     - there not being in effect any temporary restraining order, preliminary or
       permanent injunction or other order of a court or governmental agency
       prohibiting the consummation of the transactions contemplated by the
       Merger Agreement.
 
     The obligation of the Acquiror to effect the Merger is subject to the
satisfaction or waiver at or prior to the Effective Time of the following
conditions:
 
     - the representations and warranties of the Company in the Merger Agreement
       must be true and correct in all material respects;
 
     - the Company must comply in all material respects with the terms of the
       Merger Agreement;
 
   
     - the Acquiror must have received a tax opinion (as to the qualification of
       each of the Company and IAC Capital Trust as a REIT within the meaning of
       the Code and as to the treatment of the Operating Partnership, and each
       other subsidiary of the Company that is a partnership, as a partnership
       for federal income tax purposes) from Davis Polk; and
    
 
     - all awards must be canceled in accordance with the terms of the Merger
       Agreement.
 
     The obligation of the Company to effect the Merger is subject to the
satisfaction or waiver at or prior to the Effective Time of the following
conditions:
 
     - the representations and warranties of the Acquiror in the Merger
       Agreement must be true and correct in all material respects; and
 
     - the Company must comply in all material respects with the terms of the
       Merger Agreement.
 
   
     The conditions the Company must meet can be waived by the Acquiror and the
conditions the Acquiror must meet can be waived by the Special Committee on
behalf of the Company. As of the date of this Proxy Statement, the Company has
no present intention, and the Acquiror has advised the Company that it has no
present intention, to waive any material conditions to the Merger. If any
material conditions are waived by the Special Committee on behalf of the
Company, the Special Committee will, in light of its duties under Maryland law
and the federal securities laws, determine at such time if a resolicitation of
Shareholders should be made.
    
 
TERMINATION; WITHDRAWAL OF RECOMMENDATIONS
 
     The Merger Agreement provides that it may be terminated and the Merger
abandoned at any time prior to the Effective Time, generally whether before or
after approval by the Shareholders:
 
     - by mutual written consent of the Acquiror and the Special Committee (on
       behalf of the Company);
 
     - by either the Acquiror or the Special Committee (on behalf of the
       Company) if:
 
      - any Governmental Entity shall have issued an order, decree or ruling or
        taken any other action permanently restraining, enjoining or otherwise
        prohibiting the Merger and such order, decree, ruling or other action
        shall have become final and nonappealable (provided that the parties
        have used their reasonable efforts to resolve the impediment);
 
      - the Merger has not been consummated by October 1, 1999; provided that
        the right to terminate the Merger Agreement in such event is not
        available to any party whose failure to fulfill any of its obligations
        under the Merger Agreement results in the failure of the Merger to occur
        on or before such date; or
 
                                       53
<PAGE>   61
 
      - the Merger Proposal shall have been voted on by Shareholders at the
        Special Meeting and the Required Company Votes were not obtained;
 
     - by the Acquiror (and the Company must pay the Acquiror the Break-Up Fee
       described under "-- Termination Fees and Expenses" below) if:
 
      - after the receipt by the Company of an Acquisition Proposal, the Special
        Committee or the Board of Directors (including a majority of the members
        of the Special Committee) withdraws or modifies its recommendation of
        the Merger or the Merger Agreement;
 
      - after the receipt by the Company of an Acquisition Proposal (which
        Acquisition Proposal is public), the Acquiror requests in writing that
        the Special Committee or the Board of Directors publicly reconfirm its
        recommendation of the Merger and the Merger Agreement to the
        Shareholders and the Special Committee or the Board of Directors
        (including a majority of the members of the Special Committee), as
        applicable, fails to do so within 5 business days after its receipt of
        the Acquiror's request;
 
      - the Special Committee or the Board of Directors (including a majority of
        the members of the Special Committee) recommends to the Shareholders an
        Alternative Transaction;
 
      - a tender offer or exchange offer for 20% or more of the outstanding
        shares of Common Stock is commenced (other than by the Company or an
        affiliate of the Company) and the Special Committee or the Board of
        Directors (including a majority of the members of the Special Committee)
        recommends that the Shareholders tender their shares in such tender
        offer or exchange offer; or
 
      - the Company fails to call and hold the Special Meeting by October 1,
        1999;
 
     - by the Special Committee (on behalf of the Company), prior to the
       approval of the Merger Proposal by the Shareholders, if the Special
       Committee determines to accept a Superior Proposal (and the Company must
       pay the Acquiror the Break-Up Fee described under "-- Termination Fees
       and Expenses" below);
 
     - by the Acquiror upon a material breach of any covenant or agreement on
       the part of the Company set forth in the Merger Agreement, or if any
       representation or warranty of the Company becomes untrue in any material
       respect and the Company is not in good faith attempting to cure such
       breach; and
 
     - by the Special Committee (on behalf of the Company) upon a material
       breach of any covenant or agreement on the part of the Acquiror set forth
       in the Merger Agreement, or if any representation or warranty of the
       Acquiror becomes untrue in any material respect and the Acquiror is not
       in good faith attempting to cure such breach.
 
TERMINATION FEES AND EXPENSES
 
     The Acquiror and the Company have agreed that all Expenses incurred in
connection with the Merger Agreement and the transactions contemplated thereby
shall be paid by the party incurring such Expenses. Notwithstanding the
foregoing, if the Special Committee or the Board of Directors (including a
majority of the members of the Special Committee) withdraw, modify or change any
recommendation regarding the Merger or the Merger Agreement, or recommend any
other offer or proposal, and the Required Company Votes are not obtained, then
the Company must pay all of the Expenses incurred by the Acquiror. The Company
must pay the Acquiror a Break-Up Fee equal to $19,250,000 upon the earliest to
occur of the following events: (i) the termination of the Merger Agreement by
either the Acquiror or the Company, if a proposal for an Alternative Transaction
involving the Company has been publicly announced prior to the Special Meeting
and either a definitive agreement for an Alternative Transaction is entered
into, or such Alternative Transaction is consummated, within eighteen months of
such termination; or (ii) the termination of the Merger Agreement due to one of
the reasons set forth under "-- Termination; Withdrawal of Recommendations"
above for which payment of the Break-Up Fee is specified.
 
                                       54
<PAGE>   62
 
AMENDMENT AND WAIVER
 
   
     The Merger Agreement provides that it may be amended by the parties
thereto, by action taken or authorized by the Special Committee (on behalf of
the Company) and the Managing Member of the Acquiror, at any time before or
after approval of the Merger Proposal by the Shareholders, but, after any such
approval, no amendment may be made which by law or in accordance with the rules
of the NYSE requires further approval by the Shareholders without such further
approval. Generally, after Shareholder approval, the Merger Agreement may not be
amended and the Merger consummated in a manner that materially adversely affects
the Nonaffiliated Shareholders without their prior approval. It is not likely
that the Merger Agreement will be amended after approval of the Merger in a
manner materially adverse to the Nonaffiliated Shareholders. However, if such an
amendment is made, the Special Committee will consider resolicitation prior to
consummating the Merger. The Merger Agreement may not be amended except by an
instrument in writing signed on behalf of each of the parties thereto. At any
time prior to the Effective Time, the parties to the Merger Agreement, by action
taken or authorized by the Special Committee (on behalf of the Company) and the
Managing Member of the Acquiror, may, to the extent legally allowed, (i) extend
the time for the performance of any of the obligations or other acts of the
other party thereto, (ii) waive any inaccuracies in the representations and
warranties contained therein or in any document delivered pursuant thereto and
(iii) waive compliance with any of the agreements or conditions contained
therein. Any agreement on the part of a party to the Merger Agreement to any
such extension or waiver shall be valid only if set forth in a written
instrument signed on behalf of such party.
    
 
LETTER AGREEMENT WITH THE IRVINE COMPANY
 
     The Irvine Company has entered into a letter agreement with the Company
(attached as Appendix C to this Proxy Statement), pursuant to which The Irvine
Company has agreed (i) to take no action that would cause the Acquiror to
maintain less than $150 million in cash available to complete the Merger (until
the earlier of (x) the completion of the Merger and (y) 60 days following the
termination of the Merger Agreement), and (ii) to cooperate with the Acquiror,
and cause the Acquiror to comply with its obligations, in connection with
certain non-financial agreements of the Acquiror under the Merger Agreement
(e.g., preparation and filing of the Acquiror's Schedule 13E-3 with the
Securities and Exchange Commission, coordination with the Company on public
announcements and provision of directors' and officers' liability insurance for
the Directors of the Company). The Irvine Company is not obligated to contribute
any funds to the Acquiror in connection with the Merger.
 
FINANCING; SOURCE OF FUNDS
 
   
     The total amount of funds required to pay the Merger Consideration to the
Nonaffiliated Shareholders and fees and expenses related to the Merger is
estimated to be approximately $582 million. These funds will be obtained from
$150 million of cash on hand of the Acquiror and the Letters of Credit in the
aggregate amount of $438 million. The Letters of Credit are irrevocable and
unconditional, and they each require the Acquiror to certify to Bank of America
that the proceeds obtained upon draw down of the Letters of Credit will be
applied only to the payment of the Merger Consideration to the Nonaffiliated
Shareholders. The forms of the Letters of Credit have been filed with the
Commission as exhibits to the Schedule 13E-3.
    
 
NO APPRAISAL RIGHTS
 
   
     Holders of Common Stock are not entitled to dissenting shareholders'
appraisal rights or other similar rights under the MGCL and will be bound by the
terms of the Merger Agreement. The MGCL does not provide appraisal rights or
other similar rights to shareholders of a corporation in connection with a
merger if their shares are listed on a national securities exchange, such as the
NYSE, on the record date for determining shareholders entitled to vote on such
merger. All of the shares of Common Stock outstanding on the Record Date for
determining Shareholders entitled to vote on the Merger were listed on the NYSE.
    
 
                                       55
<PAGE>   63
 
FEES AND EXPENSES
 
     The estimated aggregate costs and fees of the Company and the Acquiror in
connection with the Merger and related transactions are as follows:
 
   
<TABLE>
<CAPTION>
                                             TO BE PAID    TO BE PAID
                                               BY THE        BY THE
                                              COMPANY       ACQUIROR
                                             ----------    -----------
<S>                                          <C>           <C>
Investment Banking Fees and Expenses.......  $4,300,000    $ 4,800,000
Filing Fees................................     137,197             --
Legal Fees and Expenses....................   3,000,000      1,500,000
Bank Fees and Services.....................          --      4,100,000(1)
Board of Directors Fees and Expenses.......     200,000             --
Accounting Fees and Advisory Services......     100,000        150,000
Printing, Mailing and Vote Solicitation
  Fees.....................................     300,000             --
Miscellaneous Fees.........................     212,803(2)          --
                                             ----------    -----------
          Total............................  $8,250,000    $10,550,000
                                             ==========    ===========
</TABLE>
    
 
- ---------------
   
(1) Financing costs related to the Letters of Credit.
    
 
   
(2) Contingency for consultant fees and related costs.
    
 
     The Merger Agreement calls for such fees and expenses to be paid by the
party which incurred them, except under certain circumstances. See
"-- Termination Fees and Expenses."
 
REGULATORY REQUIREMENTS
 
     Except for the filing of the Articles of Merger with the Maryland State
Department of Assessments and Taxation pursuant to the MGCL, and the filing of
the Certificate of Merger with the Secretary of State of the State of Delaware
pursuant to the Delaware General Corporation Law, after the approval and
adoption of the Merger Proposal, and compliance with federal and state
securities laws, neither the Company nor the Acquiror is aware of any material
United States federal or state or foreign governmental regulatory requirement
necessary to be complied with or approval that must be obtained in connection
with the Merger.
 
   
     The Company and the Acquiror believe that the Merger may be consummated
without notification being given or information being furnished to the Federal
Trade Commission (the "FTC") or the Antitrust Division of the Department of
Justice (the "Antitrust Division") pursuant to the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended (the "HSR Act"), and that no waiting period
requirements under the HSR Act are applicable to the Merger. However, at any
time before or after the completion of the Merger, either the FTC or the
Antitrust Division could take such action under the antitrust laws as it deems
necessary or desirable in the public interest, or other persons could take
action under the antitrust laws, including seeking to enjoin the Merger. The
Company and the Acquiror believe that consummation of the Merger will not
violate any antitrust laws. However, there can be no assurance that a challenge
to the Merger on antitrust grounds will not be made or, if a challenge is made,
as to what the result will be.
    
 
                                       56
<PAGE>   64
 
                     SELECTED FINANCIAL DATA OF THE COMPANY
 
     The following table sets forth selected financial data and other operating
information of the Company. The selected financial data in the table are derived
from the consolidated financial statements of the Company. The data should be
read in conjunction with the consolidated financial statements, related notes
and other financial information included or incorporated by reference herein.
 
   
<TABLE>
<CAPTION>
                                                               YEAR ENDED DECEMBER 31,
                                   --------------------------------------------------------------------------------
                                        1998              1997             1996            1995            1994
                                   --------------    --------------    ------------    ------------    ------------
                                    (IN THOUSANDS, EXCEPT RATIOS, PERCENTAGES, PER SHARE AND PROPERTY INFORMATION)
<S>                                <C>               <C>               <C>             <C>             <C>
SELECTED OPERATING INFORMATION
Total revenues...................    $  220,837        $  186,945        $158,698        $136,168        $130,236
Income before extraordinary item,
  minority redeemable preferred
  interests and minority interest
  in income......................        73,549            58,583          41,192          25,056          12,279
Net income.......................         8,356            26,404          18,746           8,465           7,273
Basic earnings per share(1)......          0.42              1.34            1.06            0.61            0.62
Diluted earnings per share(1)....          0.41              1.33            1.05            0.05            0.41
Cash distributions per share.....          1.52              1.48            1.44            1.39            1.11
Ratio of earnings to fixed
  charges(2).....................         1.90x             2.37x
Apartment units (at end of
  period)........................        16,439            15,136          13,656          12,776          11,358
SELECTED STABILIZED PROPERTY
  INFORMATION(3)
Total properties (at end of
  period)........................            55                51              48              43              43
Average apartment units(4).......        15,617            14,452          12,139          11,334          11,334
Average physical occupancy(5)....          94.1%             94.5%           94.9%           94.6%           95.6%
Average monthly rent per
  unit(6)........................         1,213             1,116           1,025             996             981
SELECTED BALANCE SHEET
  INFORMATION AT DECEMBER 31
Total assets.....................     1,374,624         1,163,677         900,998         853,230         757,240
Total long-term debt.............       751,818           704,063         553,064         563,286         540,689
Minority redeemable preferred
  interests and minority
  interest.......................       378,610           210,307         140,327         109,133         109,296
Shareholders' equity.............       195,858           210,920         180,017         155,433          81,753
Book value per share(7)..........          9.71
</TABLE>
    
 
- ---------------
(1) Differences between basic and diluted earnings per share in 1995 and 1994
    are primarily due to the impact of the Company's debt extinguishment costs
    which were allocated to The Irvine Company in accordance with the
    Partnership Agreement.
 
(2) For the purpose of calculating the ratios of earnings to fixed charges,
    earnings consist of net earnings before income taxes, extraordinary items
    and certain fixed charges. Fixed charges consist of interest expense,
    capitalized interest, amortization of deferred financing costs, that portion
    of rental expense representative of the interest factor in leases and
    minority redeemable preferred interests.
 
   
(3) A property is considered stabilized at the earlier of one year after
    completion of construction or when it achieves 95% occupancy. Properties are
    not considered in the calculations of average apartment units, average
    physical occupancy and average monthly rent per unit until such time as they
    are deemed stabilized.
    
 
   
(4) Average apartment units is calculated by taking the average of the total
    number of apartment units in the stabilized properties at the end of each
    week in the period.
    
 
   
(5) Average physical occupancy is calculated by dividing the total occupied
    units in the stabilized properties on a weekly basis by the total units in
    the stabilized properties on a weekly basis.
    
 
   
(6) Average monthly rent per unit is calculated by dividing average rental
    revenue per unit by average economic occupancy.
    
 
   
(7) Book value per share is calculated by dividing the number of outstanding
    shares of Common Stock into shareholders' equity.
    
 
                                       57
<PAGE>   65
 
          COMMON STOCK MARKET PRICE INFORMATION; DIVIDEND INFORMATION
 
     The Common Stock is traded on the NYSE and the Pacific Exchange, Inc. under
the symbol "IAC." The following table shows the per share high and low sales
prices reported in the consolidated transaction reporting system for
transactions in Common Stock for the periods indicated and for December 1, 1998
(the last full trading day prior to the announcement of the Acquiror's proposal
to effectuate the Merger). The following table also shows for the periods
indicated the dividends declared per share of Common Stock. The closing price on
the NYSE of the Common Stock on February 22, 1999 was $32.5625. Holders of
Common Stock are encouraged to obtain current market quotations for the Common
Stock.
 
<TABLE>
<CAPTION>
                                                        MARKET PRICE OF
                                                          COMMON STOCK        DIVIDENDS
                                                      --------------------    DECLARED
                                                        HIGH        LOW       PER SHARE
                                                      --------    --------    ---------
<S>                                                   <C>         <C>         <C>
1996
  First Quarter.....................................  $21.1250    $18.5000     $0.355
  Second Quarter....................................  $20.7500    $18.7500     $0.355
  Third Quarter.....................................  $24.0000    $20.1250     $0.365
  Fourth Quarter....................................  $25.1250    $22.0000     $0.365
 
1997
  First Quarter.....................................  $29.3750    $24.6250     $0.365
  Second Quarter....................................  $30.3750    $25.1250     $0.365
  Third Quarter.....................................  $33.4375    $28.0625     $0.375
  Fourth Quarter....................................  $33.5000    $29.0000     $0.375
 
1998
  First Quarter.....................................  $32.4375    $30.2500     $0.375
  Second Quarter....................................  $31.8750    $28.1875     $0.375
  Third Quarter.....................................  $29.9375    $23.0000     $0.385
  Fourth Quarter....................................  $32.0625    $23.2500     $0.385
  December 1, 1998..................................  $27.4375    $26.8125        n/a
 
1999
  First Quarter (through February 1, 1999)..........  $32.5000    $31.7500     $0.385
  First Quarter (from February 2, 1999 through
     February 22, 1999).............................  $33.1250    $31.7500        n/a
</TABLE>
 
     If the Merger is not consummated, the declaration of future dividends, if
any, will necessarily be dependent upon business conditions, the earnings and
financial position of the Company and the Company's plans with respect to
operating and capital expenditures and such other matters as the Company's Board
of Directors deems relevant. See "Questions and Answers About the Merger -- What
will happen to my dividends?"
 
                  CERTAIN FINANCIAL PROJECTIONS OF THE COMPANY
 
     The Company does not as a matter of course publicly disclose internal
budgets, plans, estimates, forecasts or projections as to future revenues,
earnings or other financial information. The projected financial data set forth
below reflect information which was contained in projections prepared by
management of the Company. These projections were based upon a variety of
estimates and assumptions, the material ones of which are set forth below. The
estimates and assumptions underlying the projections involved judgments with
respect to, among other things, future economic, competitive, and financial
market conditions and future business decisions which may not be realized and
are inherently subject to significant business, economic and competitive
uncertainties, all of which are difficult to predict and many of which are
beyond the control of the Company. While the Company believes these estimates
and assumptions are reasonable, there can be no assurance that the projections
will be accurate, and actual results may vary materially from those shown. In
 
                                       58
<PAGE>   66
 
   
light of the uncertainties inherent in forward looking information of any kind,
the inclusion of these projections herein should not be regarded as a
representation by the Company, the Acquiror or any other person that the
anticipated results will be achieved and investors are cautioned not to place
undue reliance on such information. See "Background; Purpose and Effects of the
Merger -- Opinion of the Financial Advisor for the Special
Committee -- Discounted Cash Flow."
    
 
   
     The Company does not intend to update or otherwise revise the information
set forth below to reflect circumstances existing after the date of the most
recent financial statements incorporated by reference in this Proxy Statement or
to reflect the occurrence of unanticipated events. The information set forth
below should be read together with the information contained in the Company's
Annual Report on Form 10-K/A for the year ended December 31, 1998 and the other
information included or incorporated by reference in this Proxy Statement.
    
 
     Subject to the qualifications and limitations stated above, the information
set forth below generally relies upon the following material assumptions and
bases for projections:
 
<TABLE>
<CAPTION>
                                                  1999    2000    2001    2002    2003
                                                  ----    ----    ----    ----    ----
<S>                                               <C>     <C>     <C>     <C>     <C>
"Same store" rent growth
  Existing properties...........................   5.0%    4.0%    3.0%    3.0%    3.0%
  New development...............................   5.0%    4.0%    3.0%    3.0%    3.0%
"Same store" expense growth.....................   2.5%    2.5%    3.0%    3.0%    3.0%
Occupancy.......................................  95.0%   95.0%   95.0%   95.0%   95.0%
</TABLE>
 
   
     In projecting rent growth, the Company looked at a number of factors,
including (not necessarily in this order), (i) job growth projections, (ii)
office and industrial rental space absorption, (iii) levels of "for sale"
housing, (iv) population growth/in-migration, (v) household income growth, (vi)
competitor property statistics, (vii) proximity to transportation corridors,
(viii) demographics and (ix) historical rent growth.
    
 
     In addition, it was assumed that the Company would invest approximately
$400 million per year in new development.
 
<TABLE>
<CAPTION>
                                                                       FORECAST
                                                    -----------------------------------------------
                                                     1999      2000      2001      2002      2003
                                                    -------   -------   -------   -------   -------
                                                      (IN MILLIONS, EXCEPT PER SHARE INFORMATION)
<S>                                                 <C>       <C>       <C>       <C>       <C>
Rental income.....................................  $251.7    $310.4    $372.7    $431.0    $494.3
Other income......................................     7.7       9.5      10.9      12.1      13.3
                                                    ------    ------    ------    ------    ------
Operating revenues................................   259.4     319.9     383.6     443.1     507.6
Property expenses.................................   (52.7)    (62.1)    (70.7)    (79.1)    (90.7)
Real estate taxes.................................   (20.4)    (25.3)    (30.8)    (36.0)    (41.2)
                                                    ------    ------    ------    ------    ------
Net operating income..............................   186.3     232.5     282.1     328.0     375.7
General and administrative........................   (10.2)    (10.4)    (10.7)    (11.0)    (11.3)
Interest income...................................     0.2       0.1       0.3       0.2       0.1
Interest expense, net.............................   (24.3)    (36.4)    (51.7)    (64.3)    (75.9)
Amortization of deferred financing costs..........    (2.1)     (2.0)     (1.9)     (2.0)     (2.1)
Depreciation & amortization of non-real estate
  assets..........................................    (0.2)     (0.2)     (0.2)     (0.2)     (0.2)
Distributions to preferred holders................   (18.8)    (29.9)    (36.7)    (36.7)    (41.6)
                                                    ------    ------    ------    ------    ------
Funds from operations (FFO)(1)....................   130.9     153.7     181.2     214.0     244.7
Amortization of deferred financing costs..........     2.1       2.0       1.9       2.0       2.1
Depreciation and amortization of non-real estate
  assets..........................................     0.2       0.2       0.2       0.2       0.2
Recurring capital expenditures....................    (7.4)     (8.4)     (9.4)    (10.4)    (11.8)
                                                    ------    ------    ------    ------    ------
Funds available for distribution (FAD)............  $125.8    $147.5    $173.9    $205.8    $235.2
                                                    ======    ======    ======    ======    ======
</TABLE>
 
- ---------------
(1) The Company generally considers FFO a useful measure of performance for an
    equity REIT. The Company computes FFO in accordance with standards
    established by the National Association of Real
 
                                       59
<PAGE>   67
 
    Estate Investment Trusts ("NAREIT"). FFO is defined as net income (computed
    in accordance with generally accepted accounting principles), excluding
    gains or losses from debt restructuring and sales of property, plus
    depreciation and amortization of real estate assets, and after adjustments
    for unconsolidated partnerships and joint ventures. Other REITs may not use
    this definition of FFO. FFO should be considered in conjunction with net
    income calculated in accordance with generally accepted accounting
    principles. FFO should not be considered an alternative to net income as an
    indication of the Company's performance and is not indicative of cash
    available to fund all cash flow needs. FFO does not represent cash flows
    from operating, investing or financing activities as defined by generally
    accepted accounting principles.
 
                     CERTAIN RELATIONSHIPS AND TRANSACTIONS
 
   
AGREEMENT WITH MESSRS. THOMPSON, DORFMAN AND HUGHES
    
 
   
     On February 4, 1997, the Operating Partnership acquired the assets
(primarily options on three parcels of land in Northern California) of Thompson
Residential Company, Inc. ("TRC") in exchange for 74,523 Common L.P. Units in
the Operating Partnership (currently approximately 0.2% of the Common L.P. Units
outstanding). In addition, TRC is entitled to an "earn out" based on the
performance of the apartment community built on one of the three parcels of
land, up to a maximum of $2,000,000 payable on or before March 2000.
Concurrently with these transactions, each of the three owners of TRC (William
W. Thompson, Bruce N. Dorfman and Robert J. Hughes) became officers of the
Company.
    
 
   
     The Operating Partnership has entered into a Stock Purchase Agreement with
Messrs. Thompson, Dorfman and Hughes, pursuant to which they will sell their
shares in TRC to the Operating Partnership or its assignee for an aggregate of
$4,533,782. This is equivalent to the sum of (i) $34.00 per Common L.P. Unit
(each Common L.P. Unit is exchangeable into one share of Common Stock) held by
TRC and (ii) the maximum $2,000,000 "earn out." The consummation of the Stock
Purchase Agreement is conditioned upon the Merger.
    
 
   
     After the Merger and the subsequent purchase of the shares in TRC from
Messrs. Thompson, Dorfman and Hughes, The Irvine Company and its subsidiaries
will own 99.32% of the Common L.P. Units. The remaining 0.68% is held by
Stonecrest.
    
 
SPECIAL RIGHTS OF THE IRVINE COMPANY UNDER CERTAIN AGREEMENTS
 
   
     Pursuant to the Partnership Agreement, the consent of the holders of a
majority of the outstanding Common L.P. Units is required with respect to
certain extraordinary actions involving the Operating Partnership including (i)
the amendment, modification or termination of the Partnership Agreement, (ii) a
general assignment for the benefit of creditors or the appointment of a
custodian, receiver or trustee for any of the assets of the Operating
Partnership, (iii) the institution of any proceeding for bankruptcy of the
Operating Partnership, (iv) the transfer of any general partnership interests in
the Operating Partnership, including through any merger, consolidation or
liquidation of the Company, subject to certain exceptions, (v) the admission of
any additional or substitute general partner in the Operating Partnership; (vi)
for the Company to take title to assets (other than temporarily in connection
with an acquisition prior to contributing such assets to the Operating
Partnership) or to conduct business other than through the Operating
Partnership; and (vii) for the Company or the Operating Partnership to engage in
any business other than the ownership, construction, development and operation
of multifamily rental apartment communities.
    
 
     In addition, until such time as the Company owns 90% or more of the total
percentage interest in the Operating Partnership, the consent of the limited
partners holding a majority interest in the Common L.P. Units will also be
required with respect to the sale or other transfer of all or substantially all
of the assets of the Operating Partnership and certain mergers and business
combinations resulting in the complete disposition of all Common L.P. Units.
 
                                       60
<PAGE>   68
 
     As general partner of the Operating Partnership, the Company has the
ability to cause the Operating Partnership to issue additional units of general
and limited partnership interest in the Operating Partnership. In the event that
the Operating Partnership issues new Common L.P. Units (for cash but not
property), The Irvine Company has the right to purchase Common L.P. Units at a
purchase price equal to the purchase price in the transaction giving rise to
such participation right in order, and to the extent necessary, to maintain its
percentage interest in the Operating Partnership.
 
   
     Pursuant to the Partnership Agreement, The Irvine Company and the other
limited partners of the Operating Partnership, their affiliates and certain
related persons have rights, exercisable once in each twelve-month period, to
exchange generally up to one-third of the Common L.P. Units owned by them for
shares of Common Stock (subject to the applicable ownership limit provisions
contained in the Company's Articles of Incorporation) and to tender up to
one-third of the Common L.P. Units owned by them to the Company for cash payable
solely out of the net proceeds of an offering of the shares of Common Stock.
    
 
   
     In the event that the Company issues (whether for cash or property) any
shares of Common Stock or securities convertible into, or exchangeable or
exercisable for, shares of Common Stock, The Irvine Company, subject to limited
exceptions, including the issuance of shares of Common Stock pursuant to any
stock incentive plan adopted by the Company or pursuant to The Irvine Company's
exercise of the exchange rights or cash tender rights described above, will have
the right to purchase shares of Common Stock or such securities at a purchase
price equal to the purchase price in the transaction giving rise to the
participation rights in order to maintain its interest in the Company and the
Operating Partnership, considered on a consolidated basis. However, other
Shareholders have no participation rights to purchase shares of Common Stock or
such securities and any such issuances might cause a dilution of a Shareholder's
investment in the Company.
    
 
   
     Pursuant to the Miscellaneous Rights Agreement, the Company has granted to
The Irvine Company, its affiliates and certain related persons, registration
rights with respect to shares of Common Stock owned by them whether acquired
upon exchange of Common L.P. Units pursuant to exchange rights, upon exercise of
any option or right of first refusal pursuant to the Land Rights Agreement,
pursuant to The Irvine Company's participation rights, in the open market or
otherwise. These registration rights, with certain limitations, grant such
parties the opportunity to demand registration of all or any portion of the
shares of Common Stock one time each calendar year and the right to have such
shares of Common Stock registered incidentally to any registration being
conducted by the Company of shares of Common Stock, securities convertible or
exchangeable for shares of Common Stock or securities substantially similar to
shares of Common Stock. The Company will bear expenses incident to its
registration requirements under the registration rights, except that such
expenses will not include any underwriting discounts or commissions.
    
 
     Pursuant to the Miscellaneous Rights Agreement, The Irvine Company has the
right to nominate three persons to the Company's Board of Directors so long as
The Irvine Company, its affiliates, the shareholders of The Irvine Company and
their affiliates or immediate family members beneficially own at least 20% of
the shares of Common Stock of the Company (including for these purposes shares
of Common Stock issuable upon exchange of Common L.P. Units). In the event that
this ownership falls below 20% but is at least 15%, The Irvine Company will have
the right to nominate two persons for election to the Board of Directors, and if
this ownership falls below 15% but is at least 10%, The Irvine Company will have
the right to nominate one person for election to the Board of Directors. The
three current nominees of The Irvine Company are Messrs. Bren, McKee and Watson.
 
   
     Pursuant to the Miscellaneous Rights Agreement, three nominees of The
Irvine Company have been elected to the Company's nine member Board of
Directors. Pursuant to Section 3.4 of the Miscellaneous Rights Agreement, the
Company has agreed not to increase the size of the Board of Directors to more
than ten persons or to decrease the size of the Board of Directors to fewer than
eight persons without the written consent of the Irvine Persons (as defined
therein) then owning, directly or indirectly, any shares of Common Stock or
Common L.P. Units. Pursuant to Article Ninth of the Articles of Incorporation
and Article III of the Company's by-laws, the consent of Directors representing
more than 75% of the entire Board of Directors is required with respect to
certain actions, including (i) a change of control (as defined in Article Ninth
of the
    
 
                                       61
<PAGE>   69
 
   
Articles of Incorporation); (ii) the amendment of the Company's Articles of
Incorporation or by-laws, or the Partnership Agreement; (iii) any waiver or
modification of the ownership limits provisions set forth in the Articles of
Incorporation; (iv) the merger, consolidation or sale of all or substantially
all the assets of the Company or the Operating Partnership; (v) the issuance,
under certain circumstances, of equity securities of the Company; (vi) for the
Company to take title to assets or to conduct business other than through the
Operating Partnership, or for the Company or the Operating Partnership to engage
in any business other than the ownership, construction, development and
operation of multi-family rental apartment communities; (vii) making a general
assignment for the benefit of creditors; or (viii) terminating the Company's
status as a REIT for tax purposes.
    
 
     The Company, The Irvine Company, the Operating Partnership and Mr. Bren
entered into the Land Rights Agreement which through July 31, 2020 provides the
Company with the exclusive right, but not the obligation, to acquire all land
sites on the Irvine Ranch which are entitled for residential development and
designated by The Irvine Company as ready for rental apartment community
development (the "Future Land Sites"). The purchase price for each Future Land
Site is determined by appraisal and will be payable by the Company in cash,
Common L.P. Units or shares of Common Stock at the option of the Company for
Future Land Site purchase rights exercised on or before July 31, 2000, and
thereafter at the option of The Irvine Company, but subject to a determination
by the Independent Directors Committee that the method of payment will not
adversely affect the Company's qualification as a REIT. The Irvine Company has
no obligation to designate any land for sale and development of additional
apartment communities.
 
PURCHASES OF COMMON STOCK AND COMMON L.P. UNITS BY THE IRVINE COMPANY AND ITS
AFFILIATES SINCE JANUARY 1, 1997
 
     On February 20, 1997, the Company sold 1,150,000 shares of Common Stock in
an underwritten public offering at $27.50 per share. The aggregate proceeds to
the Company were approximately $29,969,000. On the same date, The Irvine Company
exercised its right pursuant to the Partnership Agreement to make additional
capital contributions to the Operating Partnership totaling $36,332,695.64
through TIC Investment Company C, a California general partnership ("TICICC"),
for which TICICC received 1,394,194 Common L.P. Units.
 
     On February 10, 1997, October 21, 1997 and December 16, 1997, TIC
Investment Company D, a California general partnership ("TICICD") and a
subsidiary of The Irvine Company, sold apartment community land sites to the
Operating Partnership pursuant to the Land Rights Agreement. TICICD received as
payment of the purchase price 313,439, 179,433 and 332,060 Common L.P. Units,
respectively, which in each case was equal to the purchase price in dollars
($8,408,000, $5,697,000 and $10,325,000, respectively) divided by the average of
the closing prices of the Common Stock on the NYSE for the ten trading days
immediately preceding the closing date of the applicable sale.
 
     On December 1, 1997, Stonecrest sold an apartment community land site to
the Operating Partnership and received 305,707 Common L.P. Units as payment for
the $9,475,000 purchase price.
 
   
     From February 28, 1997 through September 8, 1998, The Irvine Company
acquired an aggregate of 153,613 shares of Common Stock from the Company and
TICICC acquired 135,465 Common L.P. Units from the Operating Partnership at
various prices ranging from $25.438 to $30.544 pursuant to the Company's
Dividend Reinvestment and Additional Cash Investment Plan and The Irvine
Company's rights under the Partnership Agreement and the Miscellaneous Rights
Agreement.
    
 
                                       62
<PAGE>   70
 
     The following chart provides quarterly data regarding: (i) the number of
shares of Common Stock purchased; (ii) the number of Common L.P. Units, which
are exchangeable for shares of Common Stock on a one-for-one basis, purchased;
(iii) the range of amounts paid for the Common Stock and Common L.P. Units; and
(iv) the average purchase price paid per share of Common Stock or Common L.P.
Unit by The Irvine Company and its affiliates since January 1, 1997.
 
   
<TABLE>
<CAPTION>
                                                                  RANGE OF COMMON
                                                                  STOCK AND COMMON
                                                 NUMBER OF       L.P. UNIT PURCHASE    AVERAGE PURCHASE
                              NUMBER OF         COMMON L.P.            PRICES           PRICE PAID PER
                               SHARES              UNITS         ------------------    SHARE AND COMMON
                           PURCHASED(1)(2)    PURCHASED(1)(3)      LOW       HIGH          L.P. UNIT
                           ---------------    ---------------    -------    -------    -----------------
<S>                        <C>                <C>                <C>        <C>        <C>
1997
  First Quarter..........      229,400           1,400,415       26.060     28.500          26.370
  Second Quarter.........      970,600               6,362       26.500     28.500          27.603
  Third Quarter..........       16,882               7,317       28.083     28.188          28.109
  Fourth Quarter.........      316,504               7,259       29.500     31.500          30.885
 
1998
  First Quarter..........      535,871              34,558       30.043     32.125          30.953
  Second Quarter.........      629,882              34,572       29.000     31.000          30.013
  Third Quarter..........      731,274              39,176       25.313     29.000          26.880
  Fourth Quarter.........           --                  --          n/a        n/a             n/a
 
1999
  First Quarter (through
     February 22,
     1999)...............           --                  --          n/a        n/a             n/a
</TABLE>
    
 
- ---------------
(1) At December 31, 1996, The Irvine Company and its affiliates beneficially
    owned 183,325 shares of Common Stock and 22,292,114 Common L.P. Units.
 
   
(2) All shares of Common Stock were purchased by The Irvine Company.
    
 
   
(3) All Common L.P. Units were purchased by TICICC.
    
 
OTHER TRANSACTIONS
 
     Mr. Grundhofer is Chairman, President and Chief Executive Officer of U.S.
Bancorp (formerly First Bank System, Inc.) which, through an affiliate, is a
member of the bank syndicate that provided the Company's $250,000,000 revolving
credit facility. There was no balance under the credit facility as of February
22, 1999. An affiliate of U.S. Bancorp is also a member of the bank syndicate
that provided the Company's $100,000,000 term loan facility. Based on this
bank's percentage participation in these credit facilities (and the predecessor
facilities), the Company estimates that the amount of interest and fees paid to
the affiliate totaled approximately $364,000 in 1998. Affiliates of U.S. Bancorp
are also lenders to The Irvine Company and the Acquiror and their affiliates,
including under the Letters of Credit.
 
     Mr. Peltason has served as President of the Donald L. Bren Foundation (a
California non-profit public benefit corporation affiliated with Mr. Bren) since
September 1997, and was a consultant to Mr. Bren with respect to charitable
giving and the formation of the Donald L. Bren Foundation from October 1995
through December 1997.
 
   
     Additional information (including with respect to transactions between the
Company and The Irvine Company and its affiliates) is set forth in Part
III -- Item 13. Certain Relationships and Related Transactions, and in the notes
to the consolidated financial statements of the Company, each of which is
contained in the Company's Annual Report on Form 10-K/A for the year ended
December 31, 1998, which is incorporated by reference in this Proxy Statement.
    
 
                                       63
<PAGE>   71
 
                           MANAGEMENT OF THE COMPANY
 
   
     Information with respect to the management of the Company is set forth in
Part III of the Company's Annual Report on Form 10-K/A for the year ended
December 31, 1998, which is incorporated by reference in this Proxy Statement.
    
 
   
                   MANAGEMENT OF THE ACQUIROR AND ITS MEMBERS
    
 
THE ACQUIROR
 
   
     The name, title, present and five year historical principal occupation or
employment of each of the executive officers of the Acquiror are set forth
below. Currently, the Acquiror has no directors. The business address of each
executive officer is 550 Newport Center Drive, Suite 900, Newport Beach, CA
92660. In addition, if no dates are indicated with respect to a position, the
individual has served in that capacity for at least the past five years. All of
the persons listed below are citizens of the United States of America.
    
 
   
<TABLE>
<CAPTION>
                                                      PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
                                                        MATERIAL POSITIONS HELD DURING THE PAST
       NAME AND CURRENT BUSINESS ADDRESS               FIVE YEARS AND BUSINESS ADDRESSES THEREOF
       ---------------------------------              -------------------------------------------
<S>                                               <C>
Donald Bren                                       1998 - Present -- Chairman, President and Chief
                                                         Executive Officer of the Acquiror
                                                  1997 - President and Chief Executive Officer, the
                                                         Company, 550 Newport Center Drive, Suite
                                                         300,
                                                         Newport Beach, CA 92660
Michael D. McKee                                  1998 - Present -- Executive Vice President, Chief
                                                         Financial Officer and Secretary of the
                                                         Acquiror
                                                  1996 - Present -- Executive Vice President, Chief
                                                         Financial Officer and Corporate Secretary,
                                                         The Irvine Company
                                                  1994 - 1996 -- Executive Vice President and Chief
                                                         Legal Officer, The Irvine Company
                                                  1993 - 1994 -- Managing Partner, Orange County
                                                         Office,
                                                         Latham & Watkins, 650 Town Center Drive,
                                                         Suite 2000, Costa Mesa, CA 92626
David A. Patty                                    1998 - Present -- Senior Vice President of the
                                                         Acquiror
                                                  1996 - Present -- Senior Vice President and Chief
                                                         Investment Officer, The Irvine Company
                                                  1994 - 1996 -- Senior Vice President, The Irvine
                                                         Company
                                                  1993 - 1994 -- Chief Financial Officer, Donahue
                                                         Schriber,
                                                         a private real estate company
                                                         3501 Jamboree Road, Suite 300, Newport
                                                         Beach, CA 92660
Thomas B. Rogers                                  1998 - Present -- Treasurer of the Acquiror
                                                  1995 - Present -- Treasurer and Senior Vice
                                                         President,
                                                         The Irvine Company
                                                  1993 - 1995 -- Senior Vice President, The Irvine
                                                         Company
</TABLE>
    
 
                                       64
<PAGE>   72
 
THE IRVINE COMPANY
 
   
     The name, business address, title, present and five year historical
principal occupation or employment of each of the directors and executive
officers of The Irvine Company are set forth below. If no business address is
given, the director's or officer's business address is 550 Newport Center Drive,
Newport Beach, CA 92660. In addition, if no dates are indicated with respect to
a position, the individual has served in that capacity for at least the past
five years. There are no executive officers, other than Joseph D. Davis, who are
not also directors. All of the persons listed below are citizens of the United
States of America.
    
 
   
<TABLE>
<CAPTION>
                                                      PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
                                                        MATERIAL POSITIONS HELD DURING THE PAST
       NAME AND CURRENT BUSINESS ADDRESS               FIVE YEARS AND BUSINESS ADDRESSES THEREOF
       ---------------------------------              -------------------------------------------
<S>                                               <C>
Donald Bren                                       Chairman, President and Chief Executive Officer of
                                                         The Irvine Company
                                                  1997 - President and Chief Executive Officer, the
                                                         Company, 550 Newport Center Drive, Suite
                                                         300, Newport Beach, CA 92660
Raymond L. Watson                                 Vice Chairman of The Irvine Company
Gary H. Hunt                                      Executive Vice President, Corporate Affairs of The
                                                         Irvine Company
Joseph D. Davis                                   1996 - Present -- Executive Vice President, Land
                                                         and Residential Development, of The Irvine
                                                         Company
                                                  1994 - 1996 -- Vice President and General Manager,
                                                         Chevron Land and Development, 1 Corporate
                                                         Plaza,
                                                         Newport Beach, CA 92660
                                                  1993 - 1994 -- Vice President, Irvine Community
                                                         Builders, The Irvine Company
Richard G. Sim                                    Executive Vice President and President, Investment
                                                         Properties Group, of The Irvine Company
Michael D. McKee                                  1996 - Present -- Executive Vice President, Chief
                                                         Financial Officer and Corporate Secretary of
                                                         The Irvine Company
                                                  1994 - 1996 -- Executive Vice President and Chief
                                                         Legal Officer, The Irvine Company
                                                  1993 - 1994 -- Managing Partner, Orange County
                                                         Office, Latham & Watkins, 650 Town Center
                                                         Drive, Suite 2000, Costa Mesa, CA 92626
Richard F. Alden                                  Director, The Irvine Company
  11340 West Olympic Blvd., Suite 280             Private Investor
  Los Angeles, CA 90064
Donald M. Koll                                    Director, The Irvine Company
  The Koll Company                                Chairman and Chief Executive Officer, The Koll
  4343 Von Karman Avenue                          Company, a private real estate company
  Newport Beach, CA 92660
                                                  1991 - 1997, Chairman of the Board, Koll Management
                                                         Services, Inc., a private real estate
                                                         management company
</TABLE>
    
 
                                       65
<PAGE>   73
 
   
<TABLE>
<CAPTION>
                                                      PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
                                                        MATERIAL POSITIONS HELD DURING THE PAST
       NAME AND CURRENT BUSINESS ADDRESS               FIVE YEARS AND BUSINESS ADDRESSES THEREOF
       ---------------------------------              -------------------------------------------
<S>                                               <C>
Benjamin V. Lambert                               Director, The Irvine Company
  Eastdil Realty Company                          Chairman and Chief Executive Officer,
  40 West 57th Street, 22nd Floor                 Eastdil Realty Company, a private real estate
  New York, NY 10019                              investment banking company
Donn B. Miller, Esq.                              Director, The Irvine Company
  Pearson-Sibert Oil Company of Texas             President and Chief Executive Officer,
  136 El Camino, Suite 216                        Pearson-Sibert Oil Company of Texas,
  Beverly Hills, CA 90212                         a private oil investment company
Thomas H. Nielsen                                 Director, The Irvine Company
  The Nielsen Company                             1995 - Present -- Owner, The Nielsen Company, a
  3 Monaco                                        real
  Newport Beach, CA 92660                         estate consulting company
                                                  1993 - 1995 -- Managing Director, Orange County
                                                  Office
                                                  of U.S. Trust of California
Carl E. Reichardt                                 Director, The Irvine Company
  c/o Wells Fargo Bank                            1998 - Present -- Retired Chairman and
  420 Montgomery St., 12th Floor                  Chief Executive Officer, Wells Fargo Bank
  San Francisco, CA 94104
                                                  1993 - 1998 -- Chairman of the Board,
                                                  Chief Executive Officer, Wells Fargo Bank
Thomas C. Sutton                                  Director, The Irvine Company
  Pacific Life Insurance                          Chairman and Chief Executive Officer,
  700 Newport Center Drive                        Pacific Mutual Life Insurance Company
  Newport Beach, CA 92660
Peter V. Ueberroth                                Director, The Irvine Company
  The Contrarian Group                            Managing Director, Contrarian Group, a private
  1071 Camelback, Suite 111                       investment company
  Newport Beach, CA 92660
William T. White, III                             Director, The Irvine Company
  Blanco Investments & Land Ltd.                  President, Blanco Investments and Land Ltd., a
  230 Newport Center Drive, Suite 300             private real estate investment company
  Newport Beach, CA 92660                         
</TABLE>
    
 
                                       66
<PAGE>   74
 
ICDC
 
   
     The name, business address, title, present and five year historical
principal occupation or employment of each of the directors and executive
officers of ICDC are set forth below. If no business address is given the
director's or officer's business address is 550 Newport Center Drive, Newport
Beach, CA 92660. In addition, if no dates are indicated with respect to a
position, the individual has served in that capacity for at least the past five
years. There are no executive officers, other than Joseph D. Davis, who are not
also directors. All of the persons listed below are citizens of the United
States of America.
    
 
   
<TABLE>
<CAPTION>
                                                    PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
                                                      MATERIAL POSITIONS HELD DURING THE PAST
      NAME AND CURRENT BUSINESS ADDRESS              FIVE YEARS AND BUSINESS ADDRESSES THEREOF
      ---------------------------------             -------------------------------------------
<S>                                            <C>
Donald Bren                                    Chairman of the Board of ICDC
                                               Chairman, President and Chief Executive Officer,
                                                      The Irvine Company
                                               1997 - President and Chief Executive Officer, the
                                                      Company, 550 Newport Center Drive, Suite 300,
                                                      Newport Beach, CA 92660
Joseph D. Davis                                President and Chief Executive Officer of ICDC
                                               1996 - Present -- Executive Vice President Land and
                                                      Residential Development, The Irvine Company
                                               1994 - 1996 -- Vice President and General Manager,
                                                      Chevron Land and Development, 1 Corporate
                                                      Plaza,
                                                      Newport Beach, CA 92660
                                               1993 - 1994 -- Vice President, Irvine Community
                                                      Builders, The Irvine Company
Michael D. McKee                               Executive Vice President, Chief Financial Officer and
                                                      Secretary of ICDC
                                               1996 - Present -- Executive Vice President, Chief
                                                      Financial Officer and Corporate Secretary, The
                                                      Irvine Company
                                               1994 - 1996 -- Executive Vice President and Chief
                                                      Legal Officer, The Irvine Company
                                               1993  - 1994 -- Managing Partner, Orange County
                                                      Office, Latham & Watkins, 650 Town Center
                                                      Drive, Suite 2000, Costa Mesa, CA 92626
Richard F. Alden                               Director, ICDC
  11340 West Olympic Boulevard,                Private Investor
  Suite 2800
  Los Angeles, CA 90064
Gary H. Hunt                                   Director, ICDC
                                               Executive Vice President, Corporate Affairs,
                                               The Irvine Company
Donn B. Miller, Esq.                           Director, ICDC
  Pearson-Sibert Oil Company of Texas          President and Chief Executive Officer, Pearson-Sibert
  136 El Camino, Suite 216                     Oil Company of Texas, a private oil investment
  Beverly Hills, CA 90212                      company
</TABLE>
    
 
                                       67
<PAGE>   75
 
   
<TABLE>
<CAPTION>
                                                    PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
                                                      MATERIAL POSITIONS HELD DURING THE PAST
      NAME AND CURRENT BUSINESS ADDRESS              FIVE YEARS AND BUSINESS ADDRESSES THEREOF
      ---------------------------------             -------------------------------------------
<S>                                            <C>
Thomas H. Nielsen                              Director, ICDC
  The Nielsen Company                          1995 - Present -- Owner, The Nielsen Company, a real
  3 Monaco                                     estate consulting company
  Newport Beach, CA 92660
                                               1993 - 1995 -- Managing Director, Orange County Office
                                               of U.S. Trust of California
 
Richard G. Sim                                 Director, ICDC
                                               Executive Vice President and President, Investment
                                               Properties Group, The Irvine Company
Peter V. Ueberroth                             Director, ICDC
  The Contrarian Group                         Managing Director, Contrarian Group, a private
  1071 Camelback, Suite 111                    investment
  Newport Beach, CA 92660                      company
 
Raymond L. Watson                              Director, ICDC
                                               Vice Chairman, The Irvine Company
</TABLE>
    
 
                                       68
<PAGE>   76
 
                              SECURITIES OWNERSHIP
 
     The following table sets forth the beneficial ownership of Common Stock by
the Acquiror, ICDC, The Irvine Company and their affiliates, directors and
executive officers as of February 1, 1999. The number of shares of Common Stock
beneficially owned includes the number of shares of Common Stock into which
Common L.P. Units beneficially owned by the person are exchangeable. The
percentage of all shares of Common Stock/Common L.P. Units owned assumes, with
respect to each person, that all Common L.P. Units beneficially owned by such
person are exchanged for Common Stock and that none of the Common L.P. Units
held by other persons are exchanged for Common Stock.
   
<TABLE>
<CAPTION>
                                                                                                        PERCENT OF ALL
                                              PERCENT                         NUMBER OF SHARES            SHARES OF
                                                 OF                                  OF                  COMMON STOCK
                                                ALL                             COMMON STOCK              (ASSUMING
                                               SHARES                           BENEFICIALLY               EXCHANGE
                        NUMBER OF SHARES         OF          NUMBER OF              OWNED                OF HOLDERS'
                               OF              COMMON          COMMON              (RIGHTS                  COMMON
       PERSON             COMMON STOCK         STOCK         L.P. UNITS        TO ACQUIRE(1))           L.P. UNITS)(1)
       ------          -------------------   ----------   ----------------   -------------------      ------------------
<S>                    <C>                   <C>          <C>                <C>                      <C>
The Acquiror(2)......              --             --                 --                  --                    --
ICDC.................              --             --                 --                  --                    --
The Irvine Company...       3,430,413           17.0%        24,646,705(3)       28,077,118                  62.6%
Donald Bren..........       3,613,738(4)        17.9%        24,952,412(5)       28,566,150                  63.2%
TICICC...............              --             --          3,034,105(6)        3,034,105                  13.1%
TIC Investment
  Company A..........              --             --          1,502,105(7)        1,502,105                   6.9%
TICICD...............              --             --          1,185,333(8)        1,185,333                   5.5%
DBIAC Investment
  Company(9).........              --             --                 --                  --                    --
Raymond L. Watson....          20,000              *                 --              20,000                     *
Richard G. Sim.......              --             --                 --                  --                    --
Michael D. McKee.....           5,000              *                 --               5,000                     *
David A. Patty.......              --             --                 --                  --                    --
Thomas B. Rogers.....           3,447              *                 --               3,447                     *
Richard F. Alden.....          17,303              *                 --              17,303                     *
Thomas H. Nielsen....          25,000              *                 --              25,000                     *
Carl E. Reichardt....          60,000(10)          *                 --              60,000                     *
Peter V. Ueberroth...          14,046              *                 --              14,046                     *
William T. White,
  III................           6,000              *                 --               6,000                     *
Donn B. Miller.......             975              *                 --                 975                     *
Gary H. Hunt.........             300              *                 --                 300                     *
Donald M. Koll.......              --             --                 --                  --                    --
Benjamin V. Lambert..              --             --                 --                  --                    --
Thomas C. Sutton.....              --             --                 --                  --                    --
Joseph D. Davis......           5,300              *                 --               5,300                     *
 
<CAPTION>
                         PERCENT OF
                            ALL
                         SHARES OF
                           COMMON
                           STOCK/
                           COMMON
                            L.P.
       PERSON             UNITS(1)
       ------          --------------
<S>                    <C>
The Acquiror(2)......         --
ICDC.................         --
The Irvine Company...       62.3%
Donald Bren..........       63.1%
TICICC...............        6.7%
TIC Investment
  Company A..........        3.3%
TICICD...............        2.6%
DBIAC Investment
  Company(9).........         --
Raymond L. Watson....          *
Richard G. Sim.......         --
Michael D. McKee.....          *
David A. Patty.......         --
Thomas B. Rogers.....          *
Richard F. Alden.....          *
Thomas H. Nielsen....          *
Carl E. Reichardt....          *
Peter V. Ueberroth...          *
William T. White,
  III................          *
Donn B. Miller.......          *
Gary H. Hunt.........          *
Donald M. Koll.......         --
Benjamin V. Lambert..         --
Thomas C. Sutton.....         --
Joseph D. Davis......          *
</TABLE>
    
 
                                       69
<PAGE>   77
 
- ---------------
  *  Less than 1%
 
   
 (1) Assumes all of the Common L.P. Units (other than those referred to in Note
     5 below which are not exchangeable within 60 days of the date of this
     table) are exchanged for Common Stock, without regard to certain ownership
     limit provisions set forth in the Company's Articles of Incorporation. It
     is not anticipated that these ownership limit provisions will be waived.
     The Irvine Company has the right, once in every twelve month period,
     generally to exchange up to one third of the Common L.P. Units beneficially
     owned by the Irvine Company and affiliates of Mr. Bren (see Note 5) for
     shares of Common Stock at an exchange ratio of one Common L.P. Unit for
     each share of Common Stock, subject to adjustment. The Company's Articles
     of Incorporation place a limit on ownership by The Irvine Company, Mr. Bren
     and their affiliates, in the aggregate, of 20% of the outstanding Common
     Stock.
    
 
   
 (2) No shares of Common Stock or Common L.P. Units are held of record by the
     Acquiror. The Irvine Company, which indirectly owns all of the membership
     interests in the Acquiror, beneficially owns shares of Common stock and
     Common L.P. Units as set forth in the table.
    
 
   
 (3) The 24,646,705 Common L.P. Units include (i) 15,784,000 Common L.P. Units
     that The Irvine Company received directly in exchange for its transfer of
     rental apartment communities to the Operating Partnership, (ii) 1,359,000
     Common L.P. Units that The Irvine Company received upon liquidation of
     limited partnerships that contributed rental apartment communities to the
     Operating Partnership, (iii) 160,000 Common L.P. Units that The Irvine
     Company received upon liquidation of the general partnership that
     contributed rental apartment communities to the Operating Partnership, (iv)
     478,162 Common L.P. Units that The Irvine Company controls through its
     general partnership interest in TIC Investment Company B, a California
     general partnership ("TICICB"), (v) 1,144,000 Common L.P. Units that The
     Irvine Company controls as the general partner of two limited partnerships
     (the "Limited Partnerships") that contributed rental apartment communities
     to the Operating Partnership, (vi) 4,536,210 Common L.P. Units that The
     Irvine Company controls through its general partnership interest in TIC
     Investment Company A, a California general partnership ("TICICA"), and
     TICICC and (vii) 1,185,333 Common L.P. Units that The Irvine Company
     controls through its general partnership interest in TICICD.
    
 
   
 (4) Includes (i) 3,430,413 shares of Common Stock beneficially owned by The
     Irvine Company, of which Mr. Bren is the sole shareholder and Chairman of
     the Board of Directors, and (ii) 183,325 shares of Common Stock held by a
     trust, of which Mr. Bren is trustee. Mr. Bren disclaims beneficial
     ownership of the Common Stock beneficially owned by The Irvine Company.
    
 
   
 (5) Includes (i) 24,646,705 Common L.P. Units beneficially owned by The Irvine
     Company, of which Mr. Bren is the sole shareholder and Chairman of the
     Board of Directors, and (ii) 305,707 Common L.P. Units owned by Stonecrest,
     of which Mr. Bren is the sole owner of the two members. Of the 305,707
     Common L.P. Units owned by Stonecrest, 106,696 Common L.P. Units are not
     exchangeable for shares of Common Stock, pursuant to an agreement with the
     NYSE. Mr. Bren disclaims beneficial ownership of the Common L.P. Units
     beneficially owned by The Irvine Company and Stonecrest.
    
 
   
 (6) The 3,034,105 Common L.P. Units are also included in the 24,646,705 Common
     L.P. Units deemed to be beneficially owned by The Irvine Company because
     The Irvine Company is the managing general partner of TICICC. The address
     of TICICC's principal executive offices is 550 Newport Center Drive,
     Newport Beach, California 92660.
    
 
   
 (7) The 1,502,105 Common L.P. Units were transferred to TICICA from Irvine
     Lease Company, Inc. ("ILCI") on June 21, 1996. The 1,502,105 Common L.P.
     Units are also included in the 24,646,705 L.P. Units deemed to be
     beneficially owned by The Irvine Company because The Irvine Company is the
     managing general partner of TICICA. The address of TICICA's principal
     executive offices is 550 Newport Center Drive, Newport Beach, California
     92660.
    
 
   
 (8) The 1,185,333 Common L.P. Units were received in exchange for apartment
     community land sites sold to the Operating Partnership pursuant to the Land
     Rights Agreement. The 1,185,333 Common L.P.
    
 
                                       70
<PAGE>   78
 
     Units are also included in the 24,646,705 Common L.P. Units deemed to be
     beneficially owned by The Irvine Company because The Irvine Company is the
     managing general partner of TICICD. The address of TICICD's principal
     executive offices is 550 Newport Center Drive, Newport Beach, California
     92660.
 
   
 (9) DBIAC Investment Company, a California corporation ("DBIAC"), is the 1%
     general partner of TICICA, TICICB, TICICC and TICICD and the Limited
     Partnerships, which in the aggregate own 7,343,705 Common L.P. Units. The
     Irvine Company is the managing general partner of TICICA, TICICB, TICICC,
     TICICD and such Common L.P. Units are included in the 24,646,705 Common
     L.P. Units deemed to be beneficially owned by The Irvine Company. The sole
     shareholder of DBIAC is the Donald L. Bren Trust, dated June 26, 1987, as
     amended, of which Mr. Donald Bren is the sole trustee. Assuming the
     exchange of the 7,343,705 Common L.P. Units into Common Stock, DBIAC would
     be deemed to beneficially own 26.7% of the Common Stock. Since The Irvine
     Company is the managing general partner of TICICA, TICICB, TICICC, TICICD
     and the Limited Partnerships, DBIAC disclaims beneficial ownership of such
     Common Stock. The address of DBIAC's principal executive offices is 550
     Newport Center Drive, Newport Beach, California 92660.
    
 
   
(10) Includes 10,000 shares Mr. Reichardt has a right to acquire through a
     pension trust account.
    
 
     Except as set forth in this Proxy Statement, none of The Irvine Company,
the Acquiror, ICDC, or any other person controlling The Irvine Company, the
Acquiror or ICDC nor, to the best of any of their knowledge, any executive
officer or director of the Acquiror, The Irvine Company or ICDC beneficially
owns any Common Stock.
 
   
     Additional information with respect to the securities ownership of the
Company is set forth in Part III -- Item 12. Share Ownership of Certain
Beneficial Owners and Management of the Company's Annual Report on Form 10-K/A
for the year ended December 31, 1998, which is incorporated by reference in this
Proxy Statement.
    
 
                    PROPOSALS BY SHAREHOLDERS OF THE COMPANY
 
     If the Merger is consummated, there will be no public Shareholders of the
Company and no public participation in any future meetings of Shareholders of
the Company. However, if the Merger is not consummated, or is materially
delayed, the Company intends to hold its 1999 annual meeting of Shareholders as
promptly as reasonably practicable. In such case, the Company's public
Shareholders would continue to be entitled to attend and participate in the
Company's Shareholder meetings. Any proposals by Shareholders intended to be
presented at the 1999 annual meeting of Shareholders must be received by the
Company not less than 60 nor more than 90 days prior to the 1999 annual meeting,
provided that, in the event that the Company gives less than 70 days' notice or
prior public disclosure of the date of the 1999 annual meeting, notice must be
received by the Company no later than the close of business on the tenth day
following such notice or prior public disclosure. Because the date of the
Company's 1999 annual meeting will likely have been changed by more than 30 days
from the date of the Company's 1998 annual meeting, any proposals by
Shareholders intended to be presented and included in the Company's proxy
materials must be received by the Company within a reasonable time before the
Company begins to print and mail its proxy materials in connection with the 1999
annual meeting. In order for a Shareholder to bring other business before a
Shareholder meeting, timely notice must be received by the Company within the
time limits described above. Such notice must include a description of the
proposed business, the reasons therefor, and other specific matters. In each
case, the notice must be given to the Secretary of the Company, at the Company's
principal address. Any Shareholder desiring a copy of the Company's by-laws will
be furnished one without charge upon written request of the Secretary.
 
                                       71
<PAGE>   79
 
                              INDEPENDENT AUDITORS
 
   
     The consolidated financial statements and financial statement schedule of
the Company appearing in the Company's Annual Report on Form 10-K/A for the year
ended December 31, 1998, 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 and financial
statement schedule are incorporated herein by reference in reliance upon such
report given upon the authority of such firm as experts in accounting and
auditing. It is expected that representatives of Ernst & Young LLP will be
present at the Special Meeting, both to respond to appropriate questions of
Shareholders and to make a statement if they so desire.
    
 
                                 ANNUAL REPORT
 
   
     The Company's Annual Report on Form 10-K/A for the year ended December 31,
1998 is being mailed to all Shareholders with this Proxy Statement. The
information contained therein, including the annual consolidated financial
statements and notes thereto, the report of Ernst & Young LLP, independent
auditors, thereon, selected financial data and management's discussion and
analysis of financial condition and results of operations included in such
Annual Report on Form 10-K/A, is incorporated herein by reference. Information
incorporated by reference is considered part of this Proxy Statement, except to
the extent that the information is superseded by information in this Proxy
Statement. Shareholders who would like to receive copies of exhibits to the
Annual Report on Form 10-K/A (other than any exhibits that are themselves
specifically incorporated by reference in this Proxy Statement) may do so upon
request to Irvine Apartment Communities, Inc., 550 Newport Center Drive, Suite
300, Newport Beach, California 92660, Attention: Shareholder Relations;
telephone (949) 720-5530 and the payment of the Company's reasonable expenses in
furnishing such exhibit.
    
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
   
     As required by law, the Company files reports, proxy statements and other
information with the Commission. Because the Merger is a "going private"
transaction, the Acquiror and The Irvine Company have filed a Rule 13e-3
Transaction Statement on Schedule 13E-3 with respect to the Merger. The Schedule
13E-3 and such reports, proxy statements and other information contain
additional information about the Company. You can inspect and copy these
materials at the public reference facilities maintained by the Commission at
Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, and at the following
Regional Offices of the Commission: 500 West Madison Street, Suite 1400,
Chicago, Illinois 60661; and 7 World Trade Center, Suite 1300, New York, New
York 10048. For further information concerning the Commission's public reference
rooms, you may call the Commission at 1-800-SEC-0330. Some of this information
may also be accessed on the World Wide Web through the Commission's Internet
address at "http://www.sec.gov." The Common Stock is listed on the NYSE and the
Pacific Exchange, Inc., and materials may also be inspected at their offices, 20
Broad Street, New York, New York 10005, and 301 Pine Street, San Francisco,
California 94104, respectively.
    
 
     You should rely only on the information contained in (or incorporated by
reference into) this Proxy Statement. The Company has not authorized anyone to
give any information different from the information contained in (or
incorporated by reference into) this Proxy Statement. This Proxy Statement is
dated                     , 1999. You should not assume that the information
contained in this Proxy Statement is accurate as of any later date, and the
mailing of this Proxy Statement to Shareholders shall not create any implication
to the contrary.
 
           CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS
 
     Certain matters discussed in this Proxy Statement are forward-looking
statements that involve risks and uncertainties. Forward-looking statements
include the information set forth under "Certain Financial Projections of the
Company" concerning the projected consolidated income statement data as to the
years
 
                                       72
<PAGE>   80
 
   
ending December 31, 1999 through December 31, 2003. Such information has been
included in this Proxy Statement for the limited purpose of giving the
Shareholders access to financial projections by the Company's management. Such
information was prepared by the Company's management for internal use and not
with a view to publication. The information set forth under "Certain Financial
Projections of the Company" was based on assumptions concerning the Company's
business prospects in the years 1999 through 2003. The information also was
based on other revenue and operating assumptions. Information of this type is
based on estimates and assumptions that are inherently subject to significant
economic and competitive uncertainties and contingencies, all of which are
difficult to predict and many of which are beyond the Company's control.
Accordingly, there can be no assurance that the projected results would be
realized or that actual results would not be significantly higher or lower than
those set forth under "Certain Financial Projections of the Company." In
addition, the consolidated income statement data as to the years ending December
31, 1999 through December 31, 2003 were not prepared with a view to public
disclosure or compliance with the published guidelines of the Commission or the
guidelines established by the American Institute of Certified Public Accountants
regarding projections and forecasts and are included in this Proxy Statement
only because such information was made available to the Acquiror. Neither the
Company's nor the Acquiror's independent accountants have examined or applied
any agreed upon procedures to this information.
    
 
                                 OTHER MATTERS
 
     The Board of Directors does not know of any matter other than that
described in this Proxy Statement that will be presented for action at the
Special Meeting. If other matters properly come before the meeting, the persons
named as proxies intend to vote the shares they represent in accordance with
their discretion.
 
                                          By Order of the Board of Directors,
 
                                          --------------------------------------
                                          Shawn Howie
                                          Interim Chief Financial Officer and
                                          Secretary
            , 1999
 
                                       73
<PAGE>   81
 
                                                                      APPENDIX A
 
                          AGREEMENT AND PLAN OF MERGER
                          DATED AS OF FEBRUARY 1, 1999
 
                                    BETWEEN
 
                              TIC ACQUISITION LLC,
                               A DELAWARE LIMITED
                               LIABILITY COMPANY,
 
                                      AND
 
                      IRVINE APARTMENT COMMUNITIES, INC.,
                             A MARYLAND CORPORATION
 
                                       A-1
<PAGE>   82
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                       PAGE
                                                                       ----
<S>      <C>                                                           <C>
ARTICLE I. THE MERGER................................................   A-6
  1.1.   The Merger..................................................   A-6
  1.2.   Closing.....................................................   A-6
  1.3.   Effective Time..............................................   A-6
  1.4.   Effects of the Merger.......................................   A-7
  1.5.   Certificate of Formation and Limited Liability Company
         Agreement...................................................   A-7
  1.6.   Bylaws......................................................   A-7
  1.7.   Officers of Surviving Entity................................   A-7
  1.8.   Tax Treatment...............................................   A-7
 
ARTICLE II. EFFECT OF THE MERGER ON THE OWNERSHIP INTERESTS IN THE
            CONSTITUENT ENTITIES.....................................   A-7
  2.1.   Effect on Company Stock.....................................   A-7
  2.2.   Acquiror Interests..........................................   A-7
  2.3.   Company Options and Restricted Stock Units..................   A-7
  2.4.   Surrender and Payment.......................................   A-8
 
ARTICLE III. REPRESENTATIONS AND WARRANTIES..........................   A-9
  3.1.   Representations and Warranties of the Company...............   A-9
  3.2.   Representations and Warranties of Acquiror..................  A-19
 
ARTICLE IV. CONDUCT OF BUSINESS PENDING THE MERGER...................  A-21
  4.1.   Covenants of the Company....................................  A-21
  4.2.   Advice of Changes; Government Filings.......................  A-23
 
ARTICLE V. ADDITIONAL AGREEMENTS.....................................  A-24
  5.1.   Preparation of Schedule 13E-3 and Proxy Statement; the
         Company Stockholders Meeting................................  A-24
  5.2.   Access to Information.......................................  A-24
  5.3.   Approvals and Consents; Cooperation.........................  A-24
  5.4.   Stock Options and Restricted Stock..........................  A-25
  5.5.   Acquisition Proposals.......................................  A-25
  5.6.   [Intentionally Omitted].....................................  A-26
  5.7.   Withholding/Foreign Persons.................................  A-26
  5.8.   Public Announcements........................................  A-27
  5.9.   Director and Officer Liability..............................  A-27
  5.10.  Payment of Dividends........................................  A-27
  5.11.  Further Assurances..........................................  A-27
 
ARTICLE VI. CONDITIONS PRECEDENT.....................................  A-27
  6.1.   Conditions to Each Party's Obligation to Effect the
         Merger......................................................  A-27
  6.2.   Additional Conditions to Obligations of Acquiror............  A-27
  6.3.   Additional Conditions to Obligations of the Company.........  A-28
 
ARTICLE VII. TERMINATION AND AMENDMENT...............................  A-29
  7.1.   Termination.................................................  A-29
  7.2.   Expenses....................................................  A-30
  7.3.   Effect of Termination.......................................  A-31
  7.4.   Amendment...................................................  A-31
  7.5.   Extension; Waiver...........................................  A-31
</TABLE>
 
                                       A-2
<PAGE>   83
 
<TABLE>
<CAPTION>
                                                                      PAGE
                                                                      ----
<S>     <C>                                                           <C>
ARTICLE VIII. GENERAL PROVISIONS....................................  A-31
  8.1.  Non-Survival of Representations, Warranties and Agreements;
        No Other Representations and Warranties.....................  A-31
  8.2.  Notices.....................................................  A-32
  8.3.  Interpretation..............................................  A-32
  8.4.  Counterparts................................................  A-32
  8.5.  Entire Agreement; No Third Party Beneficiaries..............  A-32
  8.6.  Governing Law...............................................  A-33
  8.7.  Severability................................................  A-33
  8.8.  Assignment..................................................  A-33
  8.9.  Enforcement.................................................  A-33
  8.10. Definitions.................................................  A-33
</TABLE>
 
                                       A-3
<PAGE>   84
 
                           GLOSSARY OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                  LOCATION OF
                         DEFINITION                               DEFINED TERM
                         ----------                           --------------------
<S>                                                           <C>
Acquisition Proposal........................................  Section 5.5
Acquiror....................................................  Preamble
Affiliate...................................................  Section 8.10
Agreement...................................................  Preamble
Alternative Transaction.....................................  Section 7.2.(e)
Articles of Merger..........................................  Section 1.3
Board of Directors..........................................  Section 8.10
Break-Up Fee................................................  Section 7.2(f)
Business Day................................................  Section 8.10
Certificate of Merger.......................................  Section 1.3
Certificates................................................  Section 2.4(b)
Closing.....................................................  Section 1.2
Closing Date................................................  Section 1.2
Code........................................................  Section 3.1(i)(i)
Company.....................................................  Preamble
Company Affiliate...........................................  Section 8.10
Company Benefit Plans.......................................  Section 3.1(n)(i)
Company Common Stock........................................  Recitals
Company Disclosure Letter...................................  Section 8.10
Company Permits.............................................  Section 3.1(g)
Company Properties..........................................  Section 3.1(k)
Company Stock Option Plans..................................  Section 8.10
Company Stockholders Meeting................................  Section 5.1(c)
Company Sub.................................................  Section 8.10
DLLCA.......................................................  Recitals
Effective Time..............................................  Section 1.3
Encumbrances................................................  Section 3.1(k)
Environmental Laws..........................................  Section 3.1(l)
ERISA.......................................................  Section 3.1(n)(i)
Exchange Act................................................  Section 3.1(d)(iii)
Exchange Agent..............................................  Section 2.4(a)
Expenses....................................................  Section 7.2(a)
GAAP........................................................  Section 3.1(e)(i)
Governmental Entity.........................................  Section 3.1(d)(iii)
HSR Act.....................................................  Section 3.1(d)(ii)
Indebtedness................................................  Section 3.1(m)(ii)
IRS.........................................................  Section 3.1(n)(i)
Knowledge...................................................  Section 8.10
Liens.......................................................  Section 3.1(c)(ii)
Maryland Department.........................................  Section 1.3
Matching Transaction........................................  Section 5.5(b)
Material Adverse Effect.....................................  Section 8.10
Material Contract...........................................  Section 3.1(m)(i)
Merger......................................................  Recitals
Merger Consideration........................................  Section 2.1
MGCL........................................................  Recitals
</TABLE>
 
                                       A-4
<PAGE>   85
 
<TABLE>
<CAPTION>
                                                                  LOCATION OF
                         DEFINITION                               DEFINED TERM
                         ----------                           --------------------
<S>                                                           <C>
Non-Employee Option.........................................  Section 2.3(b)
NYSE........................................................  Section 3.1(d)(iii)
OP..........................................................  Section 3.1(e)(i)
OP Units....................................................  Section 8.10
Option......................................................  Section 3.1(n)(v)
Organizational Documents....................................  Section 8.10
Outside Date................................................  Section 7.1(b)
Person......................................................  Section 8.10
Property Restrictions.......................................  Section 3.1(k)
Proxy Statement.............................................  Section 5.1(b)
REIT........................................................  Section 3.1(i)(ii)
Required Company Votes......................................  Section 8.10
Required Regulatory Approvals...............................  Section 8.10
Restricted Stock Unit Agreement.............................  Section 3.1(n)(vi)
Retention Agreement.........................................  Section 2.3(a)
Schedule 13E-3..............................................  Section 5.1(a)
SEC.........................................................  Section 3.1(a)
SEC Reports.................................................  Section 3.1(e)(i)
Securities Act..............................................  Section 3.1(e)(i)
Special Committee...........................................  Recitals
Stock Option Agreement......................................  Section 3.1(n)(v)
Subsidiary..................................................  Section 8.10
Superior Proposal...........................................  Section 5.5(b)
Surviving Entity............................................  Section 1.1
Tax.........................................................  Section 8.10
Taxable.....................................................  Section 8.10
Taxes.......................................................  Section 8.10
Tax Return..................................................  Section 8.10
Terminating Acquiror Breach.................................  Section 7.1(h)
Terminating Company Breach..................................  Section 7.1(g)
The other party.............................................  Section 8.10
Third Party.................................................  Section 8.10
TIC.........................................................  Section 3.1(q)
Trust.......................................................  Section 3.1(e)(i)
Trust Shares................................................  Section 8.10
Violation...................................................  Section 3.1(d)(ii)
</TABLE>
 
                                       A-5
<PAGE>   86
 
     This AGREEMENT AND PLAN OF MERGER, dated as of February 1, 1999 (this
"Agreement"), by and between TIC Acquisition LLC, a Delaware limited liability
company ("Acquiror"), and Irvine Apartment Communities, Inc., a Maryland
corporation (the "Company").
 
                             W I T N E S S E T H :
 
     WHEREAS, (i) each of the Board of Directors of the Company and a special
committee thereof comprised entirely of non-management independent directors not
affiliated with the Acquiror or any of its Affiliates (the "Special Committee")
has determined that the Merger (as defined below) is advisable and in the best
interests of its stockholders and (ii) each of the Board of Directors of the
Company, the Special Committee and the Managing Member of Acquiror have approved
the Merger upon the terms and subject to the conditions set forth in this
Agreement, whereby each issued and outstanding share of Common Stock, par value
$.01 per share, of the Company ("Company Common Stock") will be converted into
the right to receive cash;
 
     WHEREAS, in order to effectuate the foregoing, the Company, upon the terms
and subject to the conditions of this Agreement and in accordance with the
Delaware Limited Liability Company Act (the "DLLCA") and the Maryland General
Corporation Law (the "MGCL"), will merge with and into Acquiror (the "Merger");
and
 
     WHEREAS, Acquiror 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.
 
     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein, and
intending to be legally bound hereby, the parties hereto agree as follows:
 
                                   ARTICLE I
 
                                   THE MERGER
 
     1.1.  The Merger.  Upon the terms and subject to the conditions set forth
in this Agreement, and in accordance with the DLLCA and the MGCL, the Company
shall be merged with and into Acquiror at the Effective Time (as defined below).
Following the Merger, the separate corporate existence of the Company shall
cease and Acquiror shall continue as the surviving entity (hereinafter sometimes
called the "Surviving Entity") in accordance with the DLLCA and the MGCL.
 
     1.2.  Closing.  The closing of the Merger (the "Closing") will take place
on the second Business Day after satisfaction or waiver (as permitted by this
Agreement and applicable law) of the conditions (excluding conditions that, by
their terms, cannot be satisfied until the Closing Date) set forth in Article VI
(the "Closing Date"), unless another time or date is agreed to in writing by the
parties hereto. The Closing shall be held at the offices of Latham & Watkins,
650 Town Center Drive, 20th Floor, Costa Mesa, California 92626, unless another
place is agreed to in writing by the parties hereto.
 
     1.3.  Effective Time.  Upon the Closing, the parties shall (i) file with
the Secretary of State of the State of Delaware a certificate of merger or other
appropriate documents (in any such case, the "Certificate of Merger") executed
in accordance with the relevant provisions of the DLLCA, (ii) file with the
Maryland State Department of Assessments and Taxation (the "Maryland
Department") the articles of merger or other appropriate documents (in any such
case, the "Articles of Merger") executed in accordance with the relevant
provisions of the MGCL and (iii) make all other filings, recordings or
publications required under the DLLCA and MGCL in connection with the Merger.
The Merger shall become effective at 5:00 p.m., New York City time, on the later
of the date of (i) the filing of the Certificate of Merger with the Delaware
Secretary of State in accordance with the DLLCA and (ii) the filing of the
Articles of Merger with, and the acceptance for record of such Articles of
Merger by, the Maryland Department in accordance with the MGCL, or at such other
time as the parties may agree and specify in such filings in accordance with
applicable law (the time the Merger becomes effective being the "Effective
Time").
                                       A-6
<PAGE>   87
 
     1.4.  Effects of the Merger.  At the Effective Time, Acquiror shall
continue in existence as the Surviving Entity, and without further transfer,
succeed to and possess all of the rights, privileges and powers of the Company,
and all of the assets and property of whatever kind and character of the Company
shall vest in Acquiror without further act or deed; thereafter, Acquiror, as
Surviving Entity, shall be liable for all of the liabilities and obligations of
the Company (including the Retention Agreements), and any claim or judgment
against the Company may be enforced against Acquiror, as the Surviving Entity,
in accordance with the DLLCA and the MGCL. At and after the Effective Time, the
Merger will have the effects set forth in the DLLCA and the MGCL.
 
     1.5.  Certificate of Formation and Limited Liability Company
Agreement.  The certificate of formation and limited liability company agreement
of Acquiror as in effect immediately prior to the Effective Time shall be the
certificate of formation and limited liability company agreement of Surviving
Entity until thereafter changed or amended as provided therein or by applicable
law.
 
     1.6.  Bylaws.  The bylaws of Acquiror as in effect at the Effective Time
shall be the bylaws of the Surviving Entity until thereafter changed or amended
as provided therein or by applicable law.
 
     1.7.  Officers of Surviving Entity.  The officers of Acquiror shall be the
officers of the Surviving Entity, until the earlier of their resignation or
removal or otherwise ceasing to be an officer or until their respective
successors are duly appointed and qualified, as the case may be.
 
     1.8.  Tax Treatment.  The parties intend that, for United States federal
and applicable state income tax purposes, the Merger shall be treated as if the
Company had transferred all of its assets and liabilities to Acquiror in a
taxable transaction in exchange for the Merger Consideration and then completely
liquidated. Acquiror and the Company shall each report the Merger for federal
and applicable state income tax purposes consistently with the above described
treatment.
 
                                   ARTICLE II
 
                EFFECT OF THE MERGER ON THE OWNERSHIP INTERESTS
                          IN THE CONSTITUENT ENTITIES
 
     2.1.  Effect on Company Stock.  As of the Effective Time, by virtue of the
Merger and without any action on the part of the holder of any shares of Company
Common Stock, each issued and outstanding share of Company Common Stock shall be
converted into the right to receive $34.00 in cash, without interest (the
"Merger Consideration"). As of the Effective Time, all shares of Company Common
Stock shall no longer be outstanding and shall automatically be canceled and
retired and shall cease to exist, and each holder of a certificate representing
any such shares of Company Common Stock shall cease to have any rights with
respect thereto, except the right to receive, upon the surrender of such
certificates, the Merger Consideration.
 
     2.2.  Acquiror Interests.  At and after the Effective Time, each membership
interest in Acquiror issued and outstanding immediately prior to the Effective
Time shall remain an issued and outstanding membership interest in Acquiror and
shall not be affected by the Merger. Each membership interest in Acquiror that
is issued but not outstanding shall remain an issued but not outstanding
membership interest in Acquiror and shall not be affected by the Merger.
 
     2.3.  Company Options and Restricted Stock Units.
 
          (a) The Company shall take all actions necessary to assure that, prior
     to the Effective Time, each Option (other than the Options referred to
     subsection 2.3(b)) and each Restricted Stock Unit Agreement (and any
     dividend equivalents relating thereto) (and each right to any award under
     any Company Stock Option Plan) shall be canceled in accordance with the
     terms of the letter agreement dated as of January 22, 1999 between the
     Company and the holder thereof (a "Retention Agreement").
 
          (b) The Company shall take all actions necessary to assure that, prior
     to the Effective Time, each outstanding Option (i) under the Company's 1993
     Stock Option Plan for Directors or (ii) held by James Mead (a "Non-Employee
     Option"), whether or not then exercisable or vested, shall be canceled,
     and, in
 
                                       A-7
<PAGE>   88
 
     consideration of such cancellation, the Company shall pay the holder of
     such Non-Employee Option an amount in cash in respect thereof equal to the
     product of (x) the excess (if any) of the Merger Consideration over the
     exercise price thereof, and (y) the number of shares of Company Common
     Stock with respect to which such Non-Employee Option is then exercisable
     and vested (such payment to be net of withholding taxes applicable
     thereto). Each Non-Employee Option shall be canceled with respect to all
     shares of Company Common Stock subject to such Non-Employee Option,
     including shares of Company Common Stock with respect to which such
     Non-Employee Option is not then exercisable or vested.
 
          (c) The Company shall take all actions necessary to assure that, on
     and after the date of this Agreement, (i) no awards are granted under any
     Company Stock Option Plan, (ii) except as provided in the Retention
     Agreements, no Option or Restricted Stock Unit Agreement (or any dividend
     equivalents relating thereto) is amended, modified or terminated, and (iii)
     except as provided in the Retention Agreements, no other actions are taken
     that accelerate the vesting or exercisability of any Option or Restricted
     Stock Unit Agreement (or any dividend equivalents relating thereto) or
     otherwise change the rights of the holder of any Option or Restricted Stock
     Unit Agreement (or any dividend equivalents relating thereto), and (iv)
     that there are no options, warrants or other rights to acquire stock from
     the Company (other than the Options and Restricted Stock Unit Agreements
     (and dividend equivalents relating thereto) set forth on Schedules
     3.1(n)(v) and 3.1(n)(vi) to the Company Disclosure Letter.
 
     2.4.  Surrender and Payment.
 
          (a) Exchange Agent.  Prior to the Effective Time, pursuant to an
     agreement in form and substance reasonably acceptable to the Special
     Committee, Acquiror shall appoint an agent, who shall be reasonably
     acceptable to the Special Committee (the "Exchange Agent"), for the purpose
     of exchanging certificates representing shares of Company Common Stock for
     the Merger Consideration. Acquiror will make available to the Exchange
     Agent, as needed, the Merger Consideration (in immediately available funds)
     to be paid in respect of the shares of Company Common Stock.
 
          (b) Exchange Procedures.  As soon as reasonably practicable after the
     Effective Time, the Exchange Agent shall mail to each holder of record of a
     certificate or certificates (the "Certificates") which immediately prior to
     the Effective Time represented outstanding shares of Company Common Stock
     (i) a letter of transmittal (which shall specify that delivery shall be
     effected, and risk of loss and title to the Certificates shall pass, only
     upon delivery of the Certificates to the Exchange Agent and shall be in
     such form and have such other provisions as Acquiror may reasonably
     specify) and (ii) instructions for use in effecting the surrender of the
     Certificates in exchange for the Merger Consideration. Upon surrender of a
     Certificate for cancellation to the Exchange Agent or to such other agent
     or agents as may be appointed by Acquiror, 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 the Merger Consideration, without
     interest thereon, and the Certificate so surrendered shall forthwith be
     canceled. If any portion of the Merger Consideration is to paid to a Person
     other than the registered holder of the shares represented by the
     Certificate or Certificates surrendered in exchange therefor, it shall be a
     condition to such payment that the Certificate or Certificates so
     surrendered shall be properly endorsed or otherwise be in proper form for
     transfer and that the Person requesting such payment shall pay to the
     Exchange Agent any transfer or other taxes required as a result of such
     payment to a Person other than the registered holder of such shares of
     Company Common Stock or establish to the satisfaction of the Exchange Agent
     that such tax has been paid or is not payable. Until surrendered as
     contemplated by this Section 2.4, each Certificate shall be deemed at any
     time after the Effective Time to represent only the right to receive upon
     such surrender the Merger Consideration.
 
          (c) No Further Ownership Rights in Company Common Stock.  All Merger
     Consideration paid upon the surrender for exchange of Certificates in
     accordance with the terms of this Article II shall be deemed to have been
     paid in full satisfaction of all rights pertaining to the shares of Company
     Common Stock theretofore represented by such Certificates, subject,
     however, to the Surviving Entity's obligation
 
                                       A-8
<PAGE>   89
 
     to pay any dividends or make any other distributions with a record date
     prior to the Effective Time which may have been declared or made by the
     Company on such shares of Company Common Stock (i) on or after the date of
     this Agreement in a manner that does not violate the terms of this
     Agreement or (ii) prior to the date of this Agreement and which, in either
     case, remain unpaid at the Effective Time, and, from and after the
     Effective Time, there shall be no further registration of transfers on the
     stock transfer books of the Surviving Entity of the shares of Company
     Common Stock which were outstanding immediately prior to the Effective
     Time. If, after the Effective Time, Certificates are presented to the
     Surviving Entity or the Exchange Agent for any reason, they shall be
     canceled and exchanged as provided in this Article II, except as otherwise
     provided by law.
 
          (d) Unclaimed Funds.  Any portion of the Merger Consideration made
     available to the Exchange Agent pursuant to Section 2.4(a) that remains
     unclaimed by holders of the Certificates for six months after the Effective
     Time shall be delivered to Acquiror, upon demand, and any holders of
     Certificates who have not theretofore complied with this Article II shall
     thereafter look only to Acquiror for payment of their claim for Merger
     Consideration.
 
          (e) No Liability.  None of Acquiror, the Company or the Exchange Agent
     shall be liable to any Person in respect of any Merger Consideration
     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 seven years after the Effective Time or immediately
     prior to such earlier date on which any Merger Consideration in respect of
     such Certificate would otherwise escheat to or become the property of any
     Governmental Entity (as defined below), any such Merger Consideration in
     respect of such Certificate shall, to the extent permitted by applicable
     law, become the property of the Surviving Entity, free and clear of all
     claims or interest of any Person previously entitled thereto.
 
          (f) Investment of Funds.  The Exchange Agent shall invest any Merger
     Consideration made available to the Exchange Agent pursuant to Section
     2.4(a), as directed by Acquiror, on a daily basis. Any interest and other
     income resulting from such investments shall be paid to Acquiror.
 
          (g) Lost Certificates.  In the event that any Certificate shall have
     been lost, stolen or destroyed, upon the making of an affidavit of that
     fact by the Person claiming such Certificate to be lost, stolen or
     destroyed and, if required by Acquiror, the posting by such Person of a
     bond in such reasonable amount as Acquiror may direct as indemnity against
     any claim that may be made against it with respect to such Certificate, the
     Exchange Agent will issue in exchange for such lost, stolen or destroyed
     Certificate the Merger Consideration with respect to such Certificate, to
     which such Person is entitled pursuant hereto.
 
                                  ARTICLE III
 
                         REPRESENTATIONS AND WARRANTIES
 
     3.1.  Representations and Warranties of the Company.  The Company
represents and warrants to Acquiror as follows:
 
          (a) Organization, Standing and Power.  The Company has been duly
     incorporated and is validly existing and in good standing under the laws of
     the State of Maryland. The Company is duly qualified and in good standing
     to do business in each jurisdiction in which the nature of its business or
     the ownership or leasing of its properties makes such qualification
     necessary, except where the failure to so qualify would not, either
     individually or in the aggregate, have a Material Adverse Effect on the
     Company. The copies of the Organizational Documents of the Company filed
     with the Securities and Exchange Commission (the "SEC") are true, complete
     and correct copies of such documents as amended and in effect on the date
     of this Agreement.
 
          (b) Company Subsidiaries.  Schedule 3.1(b) to the Company Disclosure
     Letter sets forth each Subsidiary of the Company and the ownership interest
     therein of the Company. Each Company Sub that is a corporation is duly
     incorporated and validly existing under the laws of its jurisdiction of
     incorporation and has the requisite corporate power and authority to carry
     on its business as now being conducted. Each
 
                                       A-9
<PAGE>   90
 
     of the Company Subs that is a partnership, limited partnership, limited
     liability company or trust is duly organized and validly existing under the
     laws of its jurisdiction of organization and has the requisite power and
     authority to carry on its business as now being conducted. Each Company Sub
     is duly qualified or licensed to do business and is in good standing in
     each jurisdiction in which the nature of its business or the ownership or
     leasing of its properties makes such qualification or licensing necessary,
     other than in such jurisdictions where the failure to be so qualified or
     licensed would not, either individually or in the aggregate, have a
     Material Adverse Effect on the Company. True, complete and correct copies
     of the partnership agreement and trust declaration, as applicable, of the
     Company Subs, each as amended to the date of this Agreement, have been
     previously delivered or made available to Acquiror.
 
          (c) Capital Structure.
 
             (i) As of the date of this Agreement, the authorized stock of the
        Company consists of (A) 150,000,000 shares of Company Common Stock, of
        which 20,163,642 shares are outstanding, (B) 160,000,000 shares of
        excess stock, par value $.01 per share, of which no shares are
        outstanding, and (C) 10,000,000 shares of preferred stock, par value
        $1.00 per share, of which no shares are outstanding. All issued and
        outstanding shares of stock of the Company are duly authorized, validly
        issued, fully paid and nonassessable, and, except as disclosed in
        Schedule 3.1(c)(i) to the Company Disclosure Letter, no class of stock
        of the Company is entitled to preemptive rights. As of the date of this
        Agreement, there are no outstanding options, warrants or other rights to
        acquire stock from the Company other than (1) Options representing in
        the aggregate the right to purchase 671,333 shares of Company Common
        Stock under the Company Stock Option Plans, (2) Restricted Stock Units
        outstanding under the Company Stock Plans which may, in the Company's
        discretion, be settled by the delivery of an aggregate of 202,000 shares
        of Company Common Stock granted under the Company Stock Option Plans,
        and (3) as set forth on Schedule 3.1(c)(i) to the Company Disclosure
        Letter. There are no stock appreciation rights relating to the stock of
        the Company. Except as disclosed in Schedule 3.1(c)(i) to the Company
        Disclosure Letter, as of the date of this Agreement, no bonds,
        debentures, notes or other indebtedness of the Company having the right
        to vote on any matters on which stockholders may vote are issued or
        outstanding.
 
             (ii) Schedule 3.1(c)(ii) to the Company Disclosure Letter sets
        forth the equity ownership of each Company Sub (it being understood that
        such representation with respect to securities held by any entity other
        than the Company or any Company Sub is made only to the extent of the
        Knowledge of the Company). Except as set forth on Schedule 3.1(c)(ii) to
        the Company Disclosure Letter, (A) all of the outstanding shares of
        stock of each Company Sub that is a corporation have been duly
        authorized, validly issued, fully paid and nonassessable, and are owned
        by the Company free and clear of all liens, claims, encumbrances,
        restrictions, preemptive rights or any other claims of any thirty party
        ("Liens") and (B) all equity interests in each Company Sub that is a
        partnership, limited partnership, joint venture, limited liability
        company or trust are owned by the Company or one or more Company Subs
        free and clear of all Liens. Except as set forth on Schedule 3.1(c)(ii)
        to the Company Disclosure Letter, there are no outstanding options,
        warrants or other rights to acquire ownership interests from the Company
        Subs. Except as disclosed in Schedule 3.1(c)(ii) to the Company
        Disclosure Letter, as of the date of this Agreement, no bonds,
        debentures, notes or other indebtedness of the Company Subs having the
        right to vote on any matters on which holders of equity in the Company
        Subs are entitled to vote are issued or outstanding.
 
             (iii) Except as otherwise set forth in this Section 3.1(c) or in
        Schedule 3.1(c)(i) or 3.1(c)(ii) to the Company Disclosure Letter, as of
        the date of this Agreement, there are no securities, options, warrants,
        calls, rights, commitments, agreements, arrangements or undertakings of
        any kind to which the Company or the Company Subs is a party or by which
        any of them is bound obligating the Company or the Company Subs to
        issue, deliver or sell, or cause to be issued, delivered or sold,
        additional shares of stock or other voting securities of the Company or
        the Company Subs or obligating the Company or the Company Subs to issue,
        grant, extend or enter into any such security, option, warrant, call,
        right, commitment, agreement, arrangement or undertaking. As of the date
        of
                                      A-10
<PAGE>   91
 
        this Agreement, other than as set forth in Schedule 3.1(c)(i) or
        3.1(c)(ii) to the Company Disclosure Letter, there are no outstanding
        obligations of the Company or the Company Subs to repurchase, redeem or
        otherwise acquire any shares of stock of the Company or shares of stock
        or other ownership interests of the Company Subs.
 
          (d) Authority; No Conflicts.
 
             (i) The Company has all requisite corporate power and corporate
        authority to enter into this Agreement and, subject to the adoption of
        this Agreement by the requisite vote of the holders of Company Common
        Stock, to consummate the transactions contemplated hereby. The execution
        and delivery of this Agreement and the consummation of the transactions
        contemplated hereby have been duly authorized by all necessary corporate
        action on the part of the Company, subject in the case of the
        consummation of the Merger to the approval of this Agreement by the
        stockholders of the Company. This Agreement has been duly executed and
        delivered by the Company and constitutes a valid and binding agreement
        of the Company, enforceable against it in accordance with its terms,
        except as such enforceability may be limited by bankruptcy, insolvency,
        reorganization, moratorium and other similar laws relating to or
        affecting creditors generally and by general equity principles
        (regardless of whether such enforceability is considered in a proceeding
        in equity or at law).
 
             (ii) Except as set forth in Schedule 3.1(d)(ii) to the Company
        Disclosure Letter, the execution and delivery of this Agreement does
        not, and the consummation of the transactions contemplated hereby will
        not, conflict with, or result in any violation of, or constitute a
        default (with or without notice or lapse of time, or both) under, or
        give rise to a right of termination, amendment, cancellation or
        acceleration of any obligation or the loss of a material benefit under,
        or the creation of a lien, pledge, security interest, charge or other
        encumbrance on any assets (any such conflict, violation, default, right
        of termination, amendment, cancellation or acceleration, loss or
        creation, a "Violation") pursuant to: (A) any provision of the
        Organizational Documents of the Company or the Company Subs or (B)
        except as would not have a Material Adverse Effect on the Company and,
        subject to obtaining or making the consents, approvals, orders,
        authorizations, registrations, declarations and filings referred to in
        paragraph (iii) below, any loan or credit agreement, note, mortgage,
        bond, indenture, lease, benefit plan or other agreement, obligation,
        instrument, permit, concession, franchise, license, judgment, order,
        decree, statute, law, ordinance, rule or regulation applicable to the
        Company, the Company Subs or their respective properties or assets.
 
             (iii) No consent, approval, order or authorization of, or
        registration, declaration or filing with, any supranational, national,
        state, municipal or local government, any instrumentality, subdivision,
        court, administrative agency or commission or other authority thereof,
        or any quasi-governmental or private body exercising any regulatory,
        taxing, or other governmental or quasi-governmental authority (a
        "Governmental Entity"), is required by or with respect to the Company or
        the Company Subs in connection with the execution and delivery of this
        Agreement by the Company or the consummation by the Company of the
        transactions contemplated hereby, except for (x) those required under or
        in relation to (A) the Securities Exchange Act of 1934, as amended (the
        "Exchange Act"), (B) the DLLCA and the MGCL with respect to the filing
        and recordation of appropriate merger documents, (C) the
        Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the
        "HSR Act") and (D) rules and regulations of the New York Stock Exchange
        (the "NYSE"), and (y) such consents, approvals, orders, authorizations,
        registrations, declarations and filings the failure of which to make or
        obtain would not, individually or in the aggregate, have a Material
        Adverse Effect on the Company.
 
          (e) Reports and Financial Statements.
 
             (i) Each of the Company, Irvine Apartment Communities, L.P., a
        Delaware limited partnership (the "OP"), and IAC Capital Trust, a
        Delaware business trust (the "Trust"), has filed all required reports,
        schedules, forms, statements and other documents required to be filed by
        it with the SEC since, in each case, the later of (i) January 1, 1996
        and (ii) its formation (collectively,

                                      A-11
<PAGE>   92
 
        including all exhibits thereto, the "SEC Reports"). No other Company Sub
        is required to file any form, report or other document with the SEC.
        None of the SEC Reports, as of their respective dates (and, if amended
        or superseded by a filing prior to the date of this Agreement or of the
        Closing Date, then on the date of such filing), contained any untrue
        statement of a material fact or omitted to state a material fact
        required to be stated therein or necessary to make the statements made
        therein, in light of the circumstances under which they were made, not
        misleading. Each of the financial statements (including the related
        notes) included in the SEC Reports presents fairly, in all material
        respects, (i) the consolidated financial position and consolidated
        results of operations and cash flows of the Company and the OP and (ii)
        the financial position and results of operations and cash flows of the
        Trust, as of the respective dates or for the respective periods set
        forth therein, all in conformity with United States generally accepted
        accounting principles ("GAAP") consistently applied during the periods
        involved except as otherwise noted therein, and subject, in the case of
        the unaudited interim financial statements, to normal year-end
        adjustments that have not been and are not expected to be material in
        amount. All of such SEC Reports, as of their respective dates (and as of
        the date of any amendment to the respective SEC Report), complied as to
        form in all material respects with the applicable requirements of the
        Securities Act of 1933, as amended (the "Securities Act"), and the
        Exchange Act and the rules and regulations promulgated thereunder.
 
             (ii) Except for liabilities and obligations referred to in any of
        the SEC Reports (including, without limitation, the financial statements
        included therein) filed prior to the date of this Agreement, and except
        for liabilities and obligations incurred in the ordinary course of
        business since September 30, 1998, neither the Company nor any Company
        Sub has any liabilities or obligations of any nature which, individually
        or in the aggregate, would have a Material Adverse Effect on the
        Company.
 
          (f) Schedule 13E-3; Proxy Statement.
 
             (i) None of the information supplied or to be supplied by the
        Company for inclusion or incorporation by reference in the Schedule
        13E-3 (except for information about Acquiror or any of its Affiliates)
        will, on the date the Schedule 13E-3 is first mailed to the Company's
        stockholders or at the time of the Company Stockholders Meeting, 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 circumstances under which they were
        made, not misleading. If at any time prior to the Effective Time any
        event with respect to the Company should occur and is required to be
        described in an amendment of, or a supplement to, the Schedule 13E-3,
        the Company shall promptly furnish Acquiror with a description of such
        event. For purposes of this subsection 3.1(f)(i), any statement which is
        made or incorporated by reference in the Schedule 13E-3 shall be deemed
        modified or superseded to the extent any later filed document
        incorporated by reference in the Schedule 13E-3 or any statement
        included in the Schedule 13E-3 modifies or supersedes such earlier
        statement.
 
             (ii) None of the information supplied or to be supplied by the
        Company for inclusion or incorporation by reference in the Proxy
        Statement (except for information about Acquiror or any of its
        Affiliates furnished by Acquiror or any of its Affiliates to the
        Company) will, on the date the Proxy Statement is first mailed to the
        Company's stockholders or at the time of the Company Stockholders
        Meeting, 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 circumstances
        under which they were made, not misleading. If at any time prior to the
        Effective Time any event (other than an event with respect to the
        Acquiror or any of its Affiliates) should occur and is required to be
        described in an amendment of, or a supplement to, the Proxy Statement,
        such event shall be so described, and such amendment or supplement shall
        be promptly filed with the SEC and, as required by law, disseminated to
        the stockholders of the Company. If at any time prior to the Effective
        Time any event with respect to the Acquiror or any of its Affiliates
        should occur and is required to be described in an amendment of, or a
        supplement to, the Proxy Statement, upon receipt of a description of
        such event from Acquiror or any of its Affiliates, such amendment or

                                      A-12
<PAGE>   93
 
        supplement shall be promptly filed by the Company with the SEC and, as
        required by law, disseminated to the stockholders of the Company. The
        Proxy Statement will comply as to form in all material respects with the
        requirements of the Exchange Act and the rules and regulations of the
        SEC thereunder. For purposes of this subsection 3.1(f)(ii), any
        statement which is made or incorporated by reference in the Proxy
        Statement shall be deemed modified or superseded to the extent any later
        filed document incorporated by reference in the Proxy Statement or any
        statement included in the Proxy Statement modifies or supersedes such
        earlier statement
 
          (g) Compliance with Applicable Laws; Regulatory Matters.  Except as
     disclosed in any of the SEC Reports, the Company and the Company Subs hold,
     and are in compliance with the terms of, all permits, licenses,
     certificates, franchises, registrations, variances, exemptions, orders and
     approvals of all Governmental Entities which are material to the operation
     of their businesses, taken as a whole (the "Company Permits"), except where
     the failure so to hold or comply, individually or in the aggregate, would
     not have a Material Adverse Effect on the Company. Except as disclosed in
     any of the SEC Reports, the businesses of the Company and the Company Subs
     are not being and have not been conducted in violation of any law,
     ordinance, regulation, judgment, decree, injunction, rule or order of any
     Governmental Entity, except for violations which, individually or in the
     aggregate, would not have a Material Adverse Effect on the Company. As of
     the date of this Agreement, except as disclosed in any SEC Report, no
     investigation by any Governmental Entity with respect to the Company or the
     Company Subs is pending or, to the Knowledge of the Company, threatened,
     other than investigations which, individually or in the aggregate, would
     not have a Material Adverse Effect on the Company.
 
          (h) Litigation.  Except as disclosed in any of the SEC Reports or in
     Schedule 3.1(h) to the Company Disclosure Letter, there is no litigation,
     arbitration, claim, suit, action, investigation or proceeding pending (it
     being understood that such representation with respect to any litigation,
     arbitration, claim, suit, action, investigation or proceeding being handled
     by representatives of the Acquiror or its Affiliates on behalf of the
     Company is made only to the extent of the Knowledge of the Company) or, to
     the Knowledge of the Company, threatened, against or affecting the Company
     or the Company Subs which, individually or in the aggregate, would have a
     Material Adverse Effect on the Company, nor is there any judgment, award,
     decree, injunction, rule or order of any Governmental Entity or arbitrator
     outstanding against the Company or the Company Subs which, individually or
     in the aggregate, would have a Material Adverse Effect on the Company. As
     of the date hereof, except as set forth in Schedule 3.1(h) to the Company
     Disclosure Letter, (i) there is no litigation, arbitration, claim, suit,
     action, investigation or proceeding pending against or affecting the
     Company or its Directors relating to this Agreement or the transactions
     contemplated hereby, and (ii) to the Knowledge of the Company, there is no
     injunction, judgment, order, decree, ruling or charge in effect against the
     Company, any of the Directors of the Company or any Company Sub which would
     (A) prevent consummation of any of the transactions contemplated by this
     Agreement, (B) cause any of the transactions contemplated by this Agreement
     to be rescinded following consummation, or (C) materially adversely affect
     the right of Acquiror or any of its Subsidiaries to own its or the
     Company's or any Company Sub's assets and to operate its or the Company's
     or any Company Sub's businesses (and no such injunction, judgment, order,
     decree, ruling or charge shall be in effect).
 
          (i) Taxes.
 
             (i) Each of the Company and each Company Sub has (A) filed on a
        timely basis all Tax Returns required to be filed by it (after giving
        effect to any filing extension properly granted by a Governmental Entity
        having authority to do so) and all such Tax Returns are accurate and
        complete in all material respects; and (B) paid (or the Company has paid
        on its behalf) all Taxes shown on such returns and reports as required
        to be paid by it, and, except as disclosed in any of the SEC Reports or
        in Schedule 3.1(i)(i) to the Company Disclosure Letter, the most recent
        financial statements contained in any of the SEC Reports reflect an
        adequate reserve for all material Taxes payable by the Company (and by
        those Company Subs whose financial statements are contained therein) for
        all taxable periods and portions thereof through the date of such
        financial statements. The accruals and reserves for Taxes (including
        deferred Taxes) reflected in the books and records of

                                      A-13
<PAGE>   94
 
        the Company (and such Company Subs) as of the last day of the Company's
        most recently completed fiscal month end are in all material respects
        adequate to cover Taxes required to be accrued through such date
        (including Taxes being contested) in accordance with GAAP applied on a
        consistent basis with the financial statements contained in any of the
        SEC Reports. True, correct and complete copies of all federal, state,
        local and foreign Tax Returns for the Company and each Company Sub, and
        all written communications relating thereto, have been delivered or made
        available to representatives of Acquiror. Since January 1, 1998, the
        Company has not incurred and does not expect to incur any liability for
        taxes under Section 857(b), 860(c) or 4981 of the Internal Revenue Code
        of 1986, as amended (the "Code"), and neither the Company nor any
        Company Sub has incurred any material liability for Taxes other than in
        the ordinary course of business. The Company has not elected and will
        not elect to pay tax on any capital gain recognized on or after January
        1, 1998, including but not limited to gain recognized as a result of the
        Merger. To the Knowledge of the Company, no event has occurred, and no
        condition or circumstance exists, which presents a material risk that
        any material Tax described in the preceding two sentences will be
        imposed upon the Company. Except as set forth on Schedule 3.1(i)(i) to
        the Company Disclosure Letter, to the Knowledge of the Company, no
        deficiencies for any Taxes have been proposed, asserted or assessed
        against the Company or any of the Company Subs, and no requests for
        waivers of the time to assess any such Taxes are pending. To the
        Knowledge of the Company, Schedule 3.1(i)(i) to the Company Disclosure
        Letter sets forth (i) the taxable years of the Company and the Company
        Subs as to which the respective statutes of limitations for assessment
        of federal, state and foreign income or franchise Taxes have not
        expired, and (ii) with respect to such taxable years, those years for
        which examinations have been completed, those years for which
        examinations are presently being conducted, those years for which
        examinations have not yet been initiated and those years for which
        extensions to file Tax Returns have been requested and such Tax Returns
        have not yet been filed.
 
             (ii) The Company (A) for all taxable years commencing with 1993
        through the most recent December 31, has been subject to taxation as a
        real estate investment trust (a "REIT") within the meaning of the Code
        and has satisfied all requirements to qualify as a REIT for such years,
        (B) has operated, and will continue to operate, in such a manner as to
        qualify as a REIT for the tax year ending upon the Closing Date, and (C)
        has not taken or omitted to take any action which would reasonably be
        expected to result in a challenge to its status as a REIT, and to the
        Company's Knowledge, no such challenge is pending or threatened. The OP
        and each other Company Sub that is a partnership has been since its
        formation and continues to be treated for federal income tax purposes as
        a partnership and not as a corporation or an association or publicly
        traded partnership taxable as a corporation. The Trust (W) for its
        taxable year ended December 31, 1998 has been organized and has operated
        in conformity with the requirements for REIT qualification under the
        Code, (X) will, in a timely fashion, elect to be treated as a REIT for
        the taxable year ended December 31, 1998, (Y) during the portion of its
        taxable year from January 1, 1999 through the date hereof has been
        organized and has operated, and through the Closing Date will continue
        to be organized and to operate, in conformity with the requirements for
        REIT qualification under the Code, and (Z) has not taken or omitted to
        take any action which would reasonably be expected to result in a
        challenge to its status as a REIT and, to the Company's Knowledge, no
        such challenge is pending or threatened. Each other Company Sub has been
        since its formation, and continues to be treated for federal income tax
        purposes as a "qualified REIT subsidiary" as defined in Section 856(i)
        of the Code. To the Knowledge of the Company, neither the Company nor
        any Company Sub holds any asset (A) the disposition of which would be
        subject to rules similar to Section 1374 of the Code as a result of an
        election under IRS Notice 88-19 or (B) that is subject to a consent
        filed pursuant to Section 341(f) of the Code and the regulations
        thereunder.
 
          (j) No Payments to Employees, Officers or Directors.  Except as set
     forth on Schedule 3.1(j) to the Company Disclosure Letter or as otherwise
     specifically provided for in this Agreement, there is no employment or
     severance contract, or other agreement requiring payments to be made or
     increasing any
 
                                      A-14
<PAGE>   95
 
     amounts payable thereunder on a change of control or otherwise as a result
     of the consummation of the Merger, with respect to any employee, officer or
     director of the Company or any Company Sub.
 
          (k) Properties.  Except as provided in Schedule 3.1(k) to the Company
     Disclosure Letter, the Company or one of the Company Subs owns fee simple
     or leasehold, as applicable, title to each of the real properties
     identified (as to fee simple property or leasehold property) in Schedule
     3.1(k) to the Company Disclosure Letter (the "Company Properties"). The
     Company Properties are not subject to liens, mortgages or deeds of trust,
     claims against title, charges which are liens, security interests or other
     encumbrances on title ("Encumbrances") and which could cause, individually
     or in the aggregate, a Material Adverse Effect on the Company. The Company
     Properties (other than the Company Properties under development) are not
     subject to any rights of way, written agreements, laws, ordinances and
     regulations affecting building use or occupancy, or reservations of an
     interest in title (collectively, "Property Restrictions"), except for (i)
     Encumbrances and Property Restrictions set forth in Schedule 3.1(k) to the
     Company Disclosure Letter, (ii) Property Restrictions imposed or
     promulgated by law or any governmental body or authority with respect to
     real property, including zoning regulations, provided they do not
     materially adversely affect the current use of any Company Property (other
     than the Company Properties under development), (iii) Encumbrances and
     Property Restrictions disclosed on existing title reports, existing title
     policies or existing surveys (in either case copies of which title reports,
     title policies and surveys have been delivered or made available to
     Acquiror; provided, however, that platting of development land will not be
     shown on existing title reports or existing title policies) and (iv)
     mechanics', carriers', workmen's, repairmen's liens and other Encumbrances,
     Property Restrictions and other limitations of any kind, if any, which,
     individually or in the aggregate, are not substantial in amount, do not
     materially detract from the value of or materially interfere with the
     current use of any of the Company Properties subject thereto or affected
     thereby, and would not otherwise have a Material Adverse Effect on the
     Company. Except as provided in Schedule 3.1(k) to the Company Disclosure
     Letter, valid policies of title insurance have been issued insuring the
     Company's or the applicable Company Sub's fee simple or leasehold, as
     applicable, title to the Company Properties in amounts at least equal to
     the purchase price (or in the case of leasehold properties, imputed value)
     thereof, subject only to the matters disclosed above, and such policies
     are, at the date hereof, in full force and effect and no material claim has
     been made against any such policy. Except as provided in Schedule 3.1(k) to
     the Company Disclosure Letter, (i) the Company has no Knowledge that any
     material certificate, permit or license from any governmental authority
     having jurisdiction over any of the Company Properties (other than the
     Company Properties under development) or any agreement, easement or other
     right which is necessary to permit the current use of the buildings and
     improvements on any of the Company Properties (other than the Company
     Properties under development) or which is necessary to permit the current
     use of all driveways, roads, and other means of egress and ingress to and
     from any of the Company Properties (other than the Company Properties under
     development) has not been obtained and is not in full force and effect, or
     of any pending threat of modification or cancellation of any of same, in
     each case which would materially detract from the value of or materially
     interfere with the current use of any of the Company Properties; (ii) the
     Company has not received written notice of any material violation of any
     federal, state or municipal law, ordinance, order, regulation or
     requirement affecting any portion of any of the Company Properties issued
     by any governmental authority; (iii) the Company has no Knowledge of any
     structural defects relating to the Company Properties which would
     materially detract from the value of or materially interfere with the
     current use of any of the Company Properties; (iv) the Company has no
     Knowledge of any Company Properties whose building systems are not in
     working order in any material respect; (v) the Company has no Knowledge of
     any physical damage to any Company Property in excess of $50,000 for which
     there is no insurance in effect covering the cost of the restoration; and
     (vi) the Company has no Knowledge of any current renovation or restoration
     (not including recurring capital expenditures) to any Company Property the
     remaining cost of which exceeds $50,000. The Company has no Knowledge of
     any Property Restrictions on any Company Property under development that
     are likely to materially detract from the value of or materially interfere
     with the proposed use of such Company Property (other than Property
     Restrictions which the Company has no reason to believe it will be unable
     to have removed prior to the proposed occupancy of the Company Property).
     The Company
 
                                      A-15
<PAGE>   96
 
     has no Knowledge that any governmental authority having jurisdiction over
     any Company Property under development has denied or rejected any
     application by the Company for a certificate, permit or license with
     respect to such Company Property, which denial or rejection is likely to
     materially detract from the value of or materially interfere with the
     proposed use of such Company Property. The Company has received no notice
     of any material violation of any zoning, building or similar law, code,
     ordinance or regulation which applies to the Company Properties under
     development. Neither the Company nor any of the Company Subs has received
     any notice to the effect that (A) any condemnation or adverse rezoning
     proceedings are pending or threatened with respect to any of the Company
     Properties or (B) any zoning, building or similar law, code, ordinance or
     regulation is or will be violated by the continued maintenance, operation
     or use of any buildings or other improvements on any of the Company
     Properties (other than the Company Properties under development) or by the
     continued maintenance, operation or use of the parking areas except where
     such proceedings or violations could not have, individually or in the
     aggregate, a Material Adverse Effect on the Company. All material work to
     be performed, material payments to be made and material actions to be taken
     by the Company or the Company Subs prior to the date hereof pursuant to any
     agreement entered into with a governmental body or authority in connection
     with a site approval, zoning reclassification or other similar action
     relating to the Company Properties has been performed, paid or taken, as
     the case may be, in all material respects.
 
          (l) Environmental Liability.  Except as disclosed in any of the SEC
     Reports or as set forth in Schedule 3.1(l) to the Company Disclosure
     Letter, there are no legal, administrative, arbitral or other proceedings,
     claims, actions, causes of action, private environmental investigations or
     remediation activities or governmental investigations of any nature seeking
     to impose, or that would result in the imposition, on the Company or the
     Company Subs, of any liability or obligation arising under common law
     standards relating to environmental protection, human health or safety, or
     under any local, state or federal environmental statute, regulation or
     ordinance, including, without limitation, the Comprehensive Environmental
     Response, Compensation, and Liability Act of 1980, as amended
     (collectively, "Environmental Laws"), pending or, to the Knowledge of the
     Company, threatened, against the Company or any of the Company Subs, which
     liability or obligation would have a Material Adverse Effect on the
     Company. To the Knowledge of the Company, except as disclosed in any of the
     SEC Reports or in Schedule 3.1(l) to the Company Disclosure Letter, during
     or, with respect to Company Properties not located within that certain area
     of Orange County, California commonly known as the Irvine Ranch, prior to
     the period of (i) its or any of the Company Sub's ownership or operation of
     any of their respective current properties, (ii) its or any of the Company
     Sub's participation in the management of any property, or (iii) its or any
     of the Company Sub's holding of a security interest or other interest in
     any property, there were no releases or threatened releases (which release
     would represent a violation of, or is likely to lead to liability under,
     any Environmental Law) of hazardous, toxic, radioactive or dangerous
     materials or other materials regulated under Environmental Laws in, on,
     under or affecting any such property which would, individually or in the
     aggregate, have a Material Adverse Effect on the Company. Neither the
     Company nor any of the Company Subs is subject to any written agreement,
     order, judgment, decree, letter or memorandum by or with any Governmental
     Entity or third party imposing any material liability or obligation
     pursuant to or under any Environmental Law that would have a Material
     Adverse Effect on the Company.
 
          (m) Contracts; Debt Instruments.
 
             (i) To the Knowledge of the Company, neither the Company nor any
        Company Sub is in violation of or in default under (nor does there exist
        any condition which upon the passage of time or the giving of notice or
        both would cause such a violation of or default under) any material loan
        or credit agreement, note, bond, mortgage, indenture, lease, permit,
        concession, franchise, license or any other material contract,
        agreement, arrangement or understanding (each, a "Material Contract") to
        which it is a party or by which it or any of its properties or assets is
        bound, except as set forth in Schedule 3.1(m)(i) to the Company
        Disclosure Letter. To the Knowledge of the Company, a true, complete and
        correct copy of each Material Contract that has not been filed as an
        exhibit to any of the SEC Reports has been previously delivered or made
        available to Acquiror, and
 
                                      A-16
<PAGE>   97
 
        a list of all Material Contracts that have not been filed as an exhibit
        to any of the SEC Reports is set forth on Schedule 3.1(m)(i) to the
        Company Disclosure Letter.
 
             (ii) Except for any of the following disclosed in any of the SEC
        Reports, Schedule 3.1(m)(ii) to the Company Disclosure Letter sets forth
        (x) a list of all loan or credit agreements, notes, bonds, mortgages,
        indentures and other agreements and instruments pursuant to which any
        Indebtedness of the Company or any of the Company Subs in an aggregate
        principal amount of in excess of $100,000 per item is outstanding or may
        be incurred and (y) the respective principal amounts of all material
        Indebtedness of the Company or any Company Sub (categorized to a level
        of specificity that the Acquiror acknowledges is sufficient) outstanding
        on December 31, 1998. For purposes of this Section 3.1(m)(ii),
        "Indebtedness" shall mean, with respect to any Person, without
        duplication, (A) all indebtedness of such Person for borrowed money,
        whether secured or unsecured, (B) all obligations of such Person under
        conditional sale or other title retention agreements relating to
        property purchased by such Person, (C) all capitalized lease obligations
        of such Person, (D) all obligations of such Person under interest rate
        or currency hedging transactions (valued at the termination value
        thereof) and (E) all guarantees of such Person of any such Indebtedness
        of any other Person.
 
          (n) Employee Benefit Plans; Labor Matters.
 
             (i) With respect to each employee benefit plan, program,
        arrangement and contract (including, without limitation, any "employee
        benefit plan," as defined in Section 3(3) of the Employee Retirement
        Income Security Act of 1974, as amended ("ERISA"), any Company Stock
        Option Plan and any bonus, deferred compensation, stock bonus, stock
        purchase, restricted stock, stock option, employment, termination,
        change in control and severance plan, program, arrangement and
        contract), to which the Company or any Company Sub is a party, which is
        maintained, administered or contributed to by the Company or any Company
        Sub or Company Affiliate which the Company or any Company Sub or Company
        Affiliate has maintained, administered or contributed to, or with
        respect to which the Company or any Company Sub or Company Affiliate has
        or could incur liability under the Code or ERISA (the "Company Benefit
        Plans"), the Company has made available to Acquiror a true and complete
        copy of (A) such Company Benefit Plan, (B) the most recent annual report
        (Form 5500) filed with the Internal Revenue Service (the "IRS"), (C)
        each trust or other funding arrangement relating to such Company Benefit
        Plan, (D) the most recent summary plan description related to each
        Company Benefit Plan for which a summary plan description is required,
        (E) the most recent actuarial report (if applicable) relating to an
        Company Benefit Plan and (F) the most recent determination letter, if
        any, issued by the IRS with respect to any Company Benefit Plan
        qualified under Section 401(a) of the Code.
 
             (ii) Each of the Company Benefit Plans that is an "employee pension
        benefit plan" within the meaning of Section 3(2) of ERISA and that is
        intended to be qualified under Section 401(a) of the Code has received a
        favorable determination letter from the IRS, and the Company is not
        aware of any circumstances likely to result in the revocation of any
        such favorable determination letter that would have a Material Adverse
        Effect on the Company.
 
             (iii) Each of the Company Benefit Plans has been administered and
        operated in accordance with the terms thereof and has complied, in form
        and in operation, with ERISA, the Code and any other applicable law,
        except to the extent any failure to so comply, individually or in the
        aggregate, would not have a Material Adverse Effect on the Company.
 
             (iv) With respect to the Company Benefit Plans, no event has
        occurred and, to the Knowledge of the Company, there exists no condition
        or set of circumstances, in connection with which the Company or any
        Company Sub could be subject to any liability under the terms of such
        Company Benefit Plans, ERISA, the Code or any other applicable law
        which, individually or in the aggregate, would have a Material Adverse
        Effect on the Company.
 
                                      A-17
<PAGE>   98
 
             (v) Schedule 3.1(n)(v) to the Company Disclosure Letter sets forth
        with respect to each Option (an "Option") to purchase shares of Company
        Common Stock under any Company Stock Option Plan, whether or not then
        exercisable or vested, that is outstanding on the date of this
        Agreement: (i) the name of the holder of such Option, (ii) the number of
        shares of Company Common Stock with respect to which such Option is then
        exercisable and vested, (iii) the grant date of each Option and a
        listing of each Option which was granted pursuant to a Stock Option
        Agreement (each, a "Stock Option Agreement") which is not in the form of
        Stock Option Agreement previously provided to Acquiror, and (iv) the per
        share exercise price of such Option.
 
             (vi) Schedule 3.1(n)(v) to the Company Disclosure Letter sets forth
        with respect to each Restricted Stock Unit Agreement (including any
        dividend equivalents relating thereto) (a "Restricted Stock Unit
        Agreement") under any Company Stock Option Plan, whether or not then
        vested, that is outstanding on the date of this Agreement: (i) the name
        of the holder of such Restricted Stock Unit Agreement, (ii) the number
        of Restricted Stock Units subject to such Restricted Stock Unit
        Agreement, and (iii) the grant date of each award of Restricted Stock
        Units and a listing of each award which was granted pursuant to a
        Restricted Stock Unit Agreement which is not in the form of Restricted
        Stock Unit Award Agreement previously provided to Acquiror.
 
             (vii) Except for the Options and Restricted Stock Unit Agreements
        (including any dividend equivalents relating thereto) disclosed in
        Schedule 3.1(n)(v) or 3.1(n)(vi) to the Company Disclosure Letter, as of
        the date of this Agreement, (i) there are no outstanding awards under
        any Company Stock Option Plan, and (ii) there are no outstanding
        options, warrants or other rights to acquire stock from the Company.
 
             (viii) Schedule 3.1(j) to the Company Disclosure Letter sets forth
        a list of each Retention Agreement.
 
             (ix) There is no pending labor dispute, strike or work stoppage
        against the Company or any Company Sub which may interfere with the
        respective business activities of the Company or any Company Sub, except
        where such dispute, strike or work stoppage would not have a Material
        Adverse Effect on the Company. There is no pending charge or complaint
        against the Company or any Company Sub by the National Labor Relations
        Board or any comparable state agency, except where such unfair labor
        practice, charge or complaint would not have a Material Adverse Effect
        on the Company.
 
          (o) Absence of Certain Changes or Events.  Except as disclosed in any
     of the SEC Reports or in Schedule 3.1(o) to the Company Disclosure Letter,
     since September 30, 1998 through the date of this Agreement, (A) each of
     the Company and the Company Subs has conducted its business in the ordinary
     course and has not incurred any material liability, except in the ordinary
     course of their respective businesses; and (B) there has not been any
     change in the business, financial condition or results of operations of the
     Company or the Company Subs that has had, or will have, a Material Adverse
     Effect on the Company.
 
          (p) Vote Required.  The affirmative vote of the holders of two-thirds
     of the outstanding shares of Company Common Stock in favor of the Merger is
     the only vote of the holders of any class or series of the Company's stock
     required by the Organizational Documents of the Company or any Company Sub
     or applicable law to approve, on behalf of the Company, this Agreement, the
     Merger and the other transactions contemplated by this Agreement.
 
          (q) Related Party Transactions.  Set forth in Schedule 3.1(q) to the
     Company Disclosure Letter is a list of all material arrangements,
     agreements and contracts (other than arrangements, agreements and contracts
     to which The Irvine Company, a Delaware corporation ("TIC"), or a
     wholly-owned subsidiary of TIC is a party and other than any such
     arrangement, agreement or contract filed as an exhibit to any SEC Report,
     substantially identical in form to any such exhibit or substantially
     identical in form to the forms of option agreement, restricted stock unit
     agreement and performance award agreement previously provided to Acquiror)
     entered into by the Company or any of the Company Subs, on the one hand,
     and
 
                                      A-18
<PAGE>   99
 
     any Person who is an officer, director or affiliate of the Company or any
     of the Company Subs, any relative of any of the foregoing or any entity of
     which any of the foregoing is an affiliate, on the other hand. Copies of
     all such documents have previously been delivered or made available to
     Acquiror.
 
          (r) State Takeover Laws.  The Board of Directors of the Company has
     taken all such action required to be taken by it to provide that this
     Agreement and the transactions contemplated hereby shall be exempt from the
     requirements of any "moratorium," "control share," "fair price" or other
     anti-takeover laws or regulations of any state. Title 3, Subtitles 6 and 7
     of the MGCL do not apply to the Merger or to any other business combination
     (as defined in the MGCL) between the Company (or any affiliate thereof) and
     the Acquiror (or any affiliate thereof) or to limit the voting rights of
     the Acquiror as a holder of Company Common Stock.
 
          (s) Brokers or Finders.  Other than Morgan Stanley & Co. Incorporated,
     no agent, broker, investment banker, financial advisor or other firm or
     Person is or will be entitled to any broker's or finder's fee or any other
     similar commission or fee in connection with any of the transactions
     contemplated by this Agreement based upon arrangements made by or on behalf
     of the Company or any Company Sub.
 
          (t) Opinion of Financial Advisor.  The Board of Directors of the
     Company has received the opinion of Morgan Stanley & Co. Incorporated dated
     the date of this Agreement, to the effect that, as of such date, the Merger
     Consideration is fair, from a financial point of view, to the holders of
     Company Common Stock (other than Acquiror and its Affiliates).
 
     3.2.  Representations and Warranties of Acquiror.  Acquiror represents and
warrants to the Company as follows:
 
          (a) Organization, Standing and Power.  Acquiror has been duly
     organized and is validly existing and in good standing under the laws of
     the State of Delaware. Acquiror is duly qualified and in good standing to
     do business in each jurisdiction in which the nature of its business or the
     ownership or leasing of its properties makes such qualification necessary,
     except where the failure so to qualify would not, either individually or in
     the aggregate, have a Material Adverse Effect on Acquiror. Acquiror was
     organized on December 1, 1998. A true, correct and complete copy of the
     Limited Liability Company Operating Agreement of Acquiror has previously
     been delivered or made available to the Company. Since the date of its
     organization, Acquiror has not engaged in any activities other than in
     connection with arranging any financing required to consummate the
     transactions contemplated hereby.
 
          (b) Authority; No Conflicts.
 
             (i) Acquiror has all requisite limited liability company power and
        authority to enter into this Agreement and to consummate the
        transactions contemplated hereby. The execution and delivery of this
        Agreement and the consummation of the transactions contemplated hereby
        have been duly authorized by all necessary corporate or limited
        liability company action on the part of Acquiror. This Agreement has
        been duly executed and delivered by Acquiror and constitutes a valid and
        binding agreement of Acquiror, enforceable against Acquiror in
        accordance with its terms, except as such enforceability may be limited
        by bankruptcy, insolvency, reorganization, moratorium and other similar
        laws relating to or affecting creditors generally, or by general equity
        principles (regardless of whether such enforceability is considered in a
        proceeding in equity or at law).
 
             (ii) The execution and delivery of this Agreement does not or will
        not, as the case may be, and the consummation of the transactions
        contemplated hereby will not, result in any Violation of: (A) any
        provision of the Organizational Documents of Acquiror or (B) except as
        would not have a Material Adverse Effect on Acquiror and subject to
        obtaining or making the consents, approvals, orders, authorizations,
        registrations, declarations and filings referred to in paragraph (iii)
        below, any loan or credit agreement, note, mortgage, bond, indenture,
        lease, benefit plan or other agreement, obligation, instrument, permit,
        concession, franchise, license, judgment, order, decree, statute, law,
        ordinance, rule or regulation applicable to Acquiror or its properties
        or assets.
 
                                      A-19
<PAGE>   100
 
             (iii) No consent, approval, order or authorization of, or
        registration, declaration or filing with, any Governmental Entity is
        required by or with respect to Acquiror in connection with the execution
        and delivery of this Agreement by Acquiror or the consummation by
        Acquiror of the transactions contemplated hereby, except for (A) the
        consents, approvals, orders, authorizations, registrations, declarations
        and filings required under or in relation to clauses (A), (B) or (C) of
        Section 3.1(d)(iii) and (B) such consents, approvals, orders,
        authorizations, registrations, declarations and filings the failure of
        which to make or obtain would not have a Material Adverse Effect on
        Acquiror or impair or delay the ability of Acquiror to consummate the
        transactions contemplated hereby.
 
          (c) Available Funds.  Acquiror has, and will maintain until the
     Effective Time, cash or cash equivalents on hand in the amount of not less
     than $150 million. Acquiror has or will have available, prior to the
     Effective Time, sufficient funds to enable it to consummate the Merger and
     the other transactions contemplated hereby and to pay all related fees and
     expenses.
 
          (d) Schedule 13E-3; Proxy Statement.
 
             (i) None of the information supplied or to be supplied by Acquiror
        or any of its Affiliates for inclusion or incorporation by reference in
        the Schedule 13E-3 (except for (A) information about the Company
        furnished by the Company to Acquiror and (B) information in the Proxy
        Statement which is incorporated by reference in the Schedule 13E-3
        (except for the information in the Proxy Statement about Acquiror or any
        of its Affiliates furnished by Acquiror or any of its Affiliates to the
        Company)) will, on the date the Schedule 13E-3 is first mailed to the
        Company's stockholders or at the time of the Company Stockholders
        Meeting, 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 circumstances
        under which they were made, not misleading. If at any time prior to the
        Effective Time any event (other than an event with respect to the
        Company) should occur and is required to be described in an amendment
        of, or a supplement to, the Schedule 13E-3, such event shall be so
        described, and such amendment or supplement shall be promptly filed by
        Acquiror with the SEC and, as required by law, disseminated to the
        stockholders of the Company. If at any time prior to the Effective Time
        any event with respect to the Company should occur and is required to be
        described in an amendment of, or a supplement to, the Schedule 13E-3,
        upon receipt of a description of such event from the Company, such
        amendment or supplement shall be promptly filed by Acquiror with the SEC
        and, as required by law, disseminated to the stockholders of the
        Company. The Schedule 13E-3 will comply as to form in all material
        respects with the requirements of the Exchange Act and the rules and
        regulations promulgated thereunder. For purposes of this subsection
        3.2(d)(i), any statement which is made or incorporated by reference in
        the Schedule 13E-3 shall be deemed modified or superseded to the extent
        any later filed document incorporated by reference in the Schedule 13E-3
        or any statement included in the Schedule 13E-3 modifies or supersedes
        such earlier statement.
 
             (ii) None of the information about the Acquiror or any of its
        Affiliates supplied or to be supplied by Acquiror or any of its
        Affiliates for inclusion or incorporation by reference in the Proxy
        Statement will, on the date it is first mailed to the Company's
        stockholders or at the time of the Company Stockholders Meeting, 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 circumstances under which they were
        made, not misleading. If at any time prior to the Effective Time any
        event with respect to Acquiror or any of its Affiliates should occur and
        is required to be described in an amendment of, or a supplement to, the
        Proxy Statement, a description of such event shall be promptly furnished
        by Acquiror or its Affiliate(s) to the Company. For purposes of this
        subsection 3.2(d)(ii), any statement which is made or incorporated by
        reference in the Proxy Statement shall be deemed modified or superseded
        to the extent any later filed document incorporated by reference in the
        Proxy Statement or any statement included in the Proxy Statement
        modifies or supersedes such earlier statement.
 
                                      A-20
<PAGE>   101
 
          (e) Brokers or Finders.  No agent, broker, investment banker,
     financial advisor or other firm or Person is or will be entitled to any
     broker's or finder's fee or any other similar commission or fee from the
     Company or a Company Sub as a result of Acquiror being a party hereto or
     consummating any of the transactions contemplated by this Agreement.
 
                                   ARTICLE IV
 
                     CONDUCT OF BUSINESS PENDING THE MERGER
 
     4.1.  Covenants of the Company.  During the period from the date of this
Agreement and continuing until the Effective Time (except as expressly
contemplated or permitted by this Agreement or to the extent that Acquiror shall
otherwise consent in writing):
 
          (a) Ordinary Course.  The Company and the Company Subs shall carry on
     their respective businesses in the usual, regular and ordinary course in
     all material respects, in accordance with past practice, and shall use all
     reasonable efforts to preserve intact their present business organizations
     and preserve their relationships with customers, suppliers and others
     having business dealings with them; provided, however, that no action by
     the Company or the Company Subs with respect to matters specifically
     addressed by any other provision of this Section 4.1 shall be deemed a
     breach of this Section 4.1(a) unless such action would constitute a breach
     of one or more of such other provisions.
 
          (b) Dividends; Changes in Share Capital.  The Company shall not, and
     shall not permit any Company Sub to, and shall not propose to: (i) adjust,
     split, combine or reclassify any stock; (ii) make, declare or pay any
     dividend or make any other distribution on, or directly or indirectly
     redeem, purchase or otherwise acquire, any shares of its stock or any
     securities or obligations convertible into or exchangeable for any shares
     of its stock, voting securities or other ownership interests, or grant any
     stock appreciation rights or grant any individual, corporation or other
     entity any right, warrant or option to acquire any shares of its stock,
     voting securities or other ownership interests, except for: (A)
     distributions on Trust Shares not to exceed the greater of (1) the rate
     required by the terms thereof and (2) the minimum rate required for the
     Trust to maintain its status as a REIT; (B) regular quarterly distributions
     on preferred OP Units at the rates required by the terms thereof; (C)
     regular quarterly distributions on common OP Units at the rates recently
     paid by the OP; (D) regular quarterly distributions on Company Common Stock
     not to exceed the greater of (1) $.385 per share and (2) the minimum rate
     required for the Company to maintain its status as a REIT; provided that
     the record dates for the 1999 second and third quarter distributions shall
     not be earlier than June 15, 1999 and September 15, 1999, respectively; and
     (E) payment of dividend equivalents with respect to Restricted Stock Units;
     or (iii) repurchase, redeem or otherwise acquire any shares of its stock or
     any stock, voting securities or ownership interests in any Company Sub.
 
          (c) Issuance of Equity Securities.  Except as disclosed on Schedule
     4.1(c) to the Company Disclosure Letter, the Company shall not and shall
     cause the Company Subs not to issue, deliver or sell, or authorize or
     propose the issuance, delivery or sale of, any equity securities of the
     Company or any Company Sub, or enter into any agreement with respect to any
     of the foregoing and shall not amend any equity-related awards issued
     pursuant to the Company Benefit Plans, other than (i) the issuance of
     Company Common Stock upon the exercise of Options outstanding as of the
     date of this Agreement as disclosed in Section 3.1(c); provided any such
     issuance must be consistent with past practice and in accordance with the
     terms of the Company Stock Option Plans as in effect on the date of this
     Agreement, and no issuances shall be made with respect to any Option which
     is amended, accelerated or otherwise modified in violation of Section
     4.1(i), (ii) issuances of Company Common Stock to holders of common limited
     partner interests in the OP upon exchange of common limited partner
     interests in the OP and (iii) issuances of excess stock of the Company in
     accordance with the terms of, and subject to the limits set forth in, the
     Organizational Documents of the Company upon transfers of Company Common
     Stock.
 
          (d) Organizational Documents.  Except to the extent required to comply
     with their respective obligations hereunder, required by law or required by
     the rules and regulations of the NYSE, the
 
                                      A-21
<PAGE>   102
 
     Company and the Company Subs shall not amend or propose to amend their
     respective Organizational Documents.
 
          (e) Properties.  Except as set forth on Schedule 4.1(e) to the Company
     Disclosure Letter, the Company shall not, and shall not permit any Company
     Sub to sell, transfer, mortgage, lease, pledge, encumber or otherwise
     dispose of any Company Properties or assets to any individual, corporation
     or other entity other than a direct or indirect wholly owned Company Sub,
     or cancel, release or assign any indebtedness to any such Person or any
     claims held by any such Person, in each case that is material to such
     party, except (i) pursuant to contracts or agreements in force at the date
     of this Agreement in accordance with the terms of such contract or
     agreement as in effect on the date of this Agreement, (ii) as reasonably
     necessary to protect REIT qualification, (iii) pursuant to leases of
     apartment units in the ordinary course of business or (iv) pursuant to
     sales, transfers, mortgages, leases, pledges, encumbrances or other
     dispositions of assets other than Company Properties in the ordinary course
     of business.
 
          (f) Mergers and Acquisitions.  Except as set forth on Schedule 4.1(f)
     to the Company Disclosure Letter, the Company shall not, and shall not
     permit any Company Sub to merge or consolidate with any entity, make any
     acquisition or investment either by purchase of stock or securities,
     contributions to capital, property transfers, or purchases of any property
     or assets of any other individual, corporation or other entity, except
     transactions which are reasonably necessary to protect REIT qualifications.
 
          (g) Contracts.  Except as set forth on Schedule 4.1(g) to the Company
     Disclosure Letter, the Company shall not, and shall not permit any Company
     Sub to, except for transactions which are reasonably necessary to protect
     REIT qualification, enter into or terminate any material contract or
     agreement, or make any change in any of its material leases or contracts,
     other than renewals of contracts and leases without materially adverse
     changes of terms thereof.
 
          (h) Indebtedness.  Except as set forth on Schedule 4.1(h) to the
     Company Disclosure Letter, the Company shall not, and shall not permit any
     Company Sub to, (i) incur any indebtedness for borrowed money or guarantee
     any such indebtedness or issue or sell any debt securities or warrants or
     rights to acquire any debt securities of the Company or any Company Sub or
     guarantee any debt securities of other Persons, (ii) make any loans,
     advances or capital contributions to, or investments in, any other Person,
     or (iii) pay, discharge or satisfy any claims, liabilities or obligations
     (absolute, accrued, asserted or unasserted, contingent or otherwise), other
     than in the case of clauses (ii) and (iii), loans, advances, capital
     contributions, investments, payments, discharges or satisfactions that are
     incurred or committed to in the ordinary course of business consistent with
     past practice and that do not exceed $250,000 individually or $1 million in
     the aggregate.
 
          (i) Benefit Plans.  The Company shall not, and shall not permit any
     Company Sub to, (i) increase the compensation payable or to become payable
     to any of its executive officers or employees or (ii) take any action with
     respect to the grant of any severance or termination pay, or stay, bonus or
     other incentive arrangement (other than pursuant to benefit plans and
     policies (including the Retention Agreements) in effect on the date of this
     Agreement), except any such increases or grants made in the ordinary course
     of business and in accordance with past practice. The Company shall take
     all actions necessary to assure that (i) no awards shall be granted under
     any Company Stock Option Plan, or (ii) the terms and conditions of any
     award under any Company Stock Option Plan will not be amended, accelerated,
     or otherwise modified, and no other action will be taken with respect to
     any award under any Company Stock Option Plan, except as provided in
     Section 2.3 or otherwise in accordance with the contractual obligations of
     the Company in respect of any such awards.
 
          (j) Tax Election.  The Company shall not, and shall not permit any
     Company Sub to, make any material Tax election (unless required by law or
     necessary to preserve the Company's status as a REIT or the status of any
     Company Sub as a partnership for federal tax purposes, as a REIT or as a
     "qualified REIT subsidiary" under Section 856(i) of the Code, as the case
     may be).
 
                                      A-22
<PAGE>   103
 
          (k) Accounting Principles and Taxes.  The Company shall not, and shall
     not permit any Company Sub to, (i) change in any material manner any of its
     methods, principles or practices of accounting in effect at September 30,
     1998, or (ii) make or rescind any express or deemed election relating to
     Taxes, settle or compromise any claim, action, suit, litigation,
     proceeding, arbitration, investigation, audit or controversy relating to
     Taxes, except in the case of settlements or compromises relating to taxes
     on real property in an amount not to exceed, individually or in the
     aggregate, $100,000, or change any of its methods of reporting income or
     deductions for federal income tax purposes from those employed in the
     preparation of its federal income tax return for the most recently
     completed taxable year except, in the case of clause (i), as may be
     required by the SEC, applicable law or GAAP.
 
          (l) Liabilities.  Except as set forth on Schedule 4.1(l) to the
     Company Disclosure Letter, the Company shall not, and shall not permit any
     Company Sub to, pay, discharge, settle or satisfy any claims, liabilities
     or objections (absolute, accrued, asserted or unasserted, contingent or
     otherwise), other than the payment, discharge or satisfaction in the
     ordinary course of business consistent with past practice or in accordance
     with their terms, of liabilities reflected or reserved against in, or
     contemplated by, the most recent consolidated financial statements (or the
     notes thereof) of the Company included in any of the SEC Reports or
     incurred in the ordinary course of business consistent with past practice.
 
          (m) Other Actions.  The Company shall not, and shall not permit any
     Company Sub to, take any action that would result in (i) any of the
     representations or warranties of the Company set forth in this Agreement
     that are qualified as to materiality becoming untrue, (ii) any of such
     representations and warranties that are not so qualified becoming untrue in
     any material respect or (iii) any of the conditions to the Merger set forth
     in Article VI not being satisfied.
 
     4.2.  Advice of Changes; Government Filings.  Each party shall (a) confer
on a regular and frequent basis with the other, (b) report (to the extent
permitted by law, regulation and any applicable confidentiality agreement) on
operational matters, consistent with past practice, and (c) promptly advise the
other orally and in writing of (i) any representation or warranty made by it
contained in this Agreement that is qualified as to materiality becoming untrue
or inaccurate in any respect or any such representation or warranty that is not
so qualified becoming untrue or inaccurate in any material respect, (ii) the
failure by it (A) to comply with or satisfy in any respect any covenant,
condition or agreement required to be complied with or satisfied by it under
this Agreement that is qualified as to materiality or (B) to comply with or
satisfy in any material respect any covenant, condition or agreement required to
be complied with or satisfied by it under this Agreement that is not so
qualified as to materiality or (iii) any change, event or circumstance that has
had or would have a Material Adverse Effect on the Company or materially
adversely affect any party's ability to consummate the Merger in a timely
manner; provided, however, that no such notification shall affect the
representations, warranties, covenants or agreements of the parties or the
conditions to the obligations of the parties under this Agreement. The Company,
the Company Subs and Acquiror shall file all reports required to be filed by
each of them with the SEC (and all other Governmental Entities) between the date
of this Agreement and the Effective Time and shall (to the extent permitted by
law or regulation or any applicable confidentiality agreement) deliver to the
other party copies of all such reports promptly after the same are filed,
consistent with past practice. Subject to applicable laws relating to the
exchange of information, each of the Company and Acquiror shall have the right
to review in advance, and to the extent practicable each will consult with the
other, with respect to all the information relating to the other party and each
of their respective Subsidiaries, which appears in any filings, announcements or
publications made with, or written materials submitted to, any third party or
any Governmental Entity in connection with the transactions contemplated by this
Agreement. In exercising the foregoing right, each of the parties hereto agrees
to act reasonably and as promptly as practicable. Each party agrees that, to the
extent practicable, it will keep the other party apprised of the status of
matters relating to completion of the transactions contemplated hereby.
 
                                      A-23
<PAGE>   104
 
                                   ARTICLE V
 
                             ADDITIONAL AGREEMENTS
 
     5.1.  Preparation of Schedule 13E-3 and Proxy Statement; the Company
Stockholders Meeting.
 
          (a) Acquiror will, as promptly as practicable, prepare and file with
     the SEC, and will cause its Affiliates to cooperate, to the extent
     necessary, in such preparation and filing, a Rule 13e-3 Transaction
     Statement on Schedule 13E-3 (the "Schedule 13E-3"). Acquiror will use all
     reasonable efforts, and will cause its Affiliates to cooperate, to the
     extent necessary, to cause the Schedule 13E-3 to be mailed to stockholders
     of the Company at the earliest practicable date.
 
          (b) The Company will, as promptly as practicable, prepare and file
     with the SEC a proxy statement in connection with the vote of the Company's
     stockholders with respect to the Merger and this Agreement (such proxy
     statement, together with any amendments thereof or supplements thereto, in
     each case in the form or forms mailed to the Company's stockholders, are
     herein called the "Proxy Statement"). The Company will use all reasonable
     efforts to cause the Proxy Statement to be mailed to stockholders of the
     Company at the earliest practicable date.
 
          (c) The Company shall (i) as soon as practicable following the date of
     this Agreement, duly call, give notice of, convene and hold a meeting of
     its stockholders (the "Company Stockholders Meeting") for the purpose of
     obtaining the Required Company Votes, and (ii) through its Board of
     Directors and the Special Committee, recommend to its stockholders that
     they approve the transactions contemplated by this Agreement and shall not
     withdraw, modify or change such recommendation, or recommend any other
     offer or proposal, at any time prior to the conclusion of the Company
     Stockholders Meeting. Notwithstanding clause (ii) of the immediately
     preceding sentence of this subsection 5.1(c), the Special Committee or the
     Board of Directors of the Company (with the concurrence of the Special
     Committee) may at any time prior to the Effective Time withdraw, modify or
     change any recommendation regarding this Agreement or the Merger, or
     recommend any other offer or proposal, if the Special Committee or the
     Board of Directors of the Company (with the concurrence of the Special
     Committee) after consultation with its counsel, determines that taking any
     such action is required in accordance with its legal duties to the
     Company's stockholders under applicable law; provided, such withdrawal,
     modification, change or recommendation shall not affect or excuse the
     performance, or cure any breach, of, any obligation of the Company
     hereunder (other than that set forth in clause (ii) of the immediately
     preceding sentence of this subsection 5.1(c)), including, but not limited
     to, the requirements in clause (i) of the immediately preceding sentence of
     this subsection 5.1(c) and the requirements in Section 5.5.
 
     5.2.  Access to Information.  Upon reasonable notice, the Company shall
(and shall cause the Company Subs, to the extent permitted by the Organizational
Documents or other pertinent agreements of such entity, to) afford to the
officers, employees, accountants, counsel, financial advisors and other
representatives of Acquiror reasonable access during normal business hours,
during the period prior to the Effective Time, to all its properties, books,
contracts, commitments and records and, during such period, the Company shall
(and shall cause the Company Subs, to the extent permitted by the Organizational
Documents or other pertinent agreements of such entity, to) furnish promptly to
Acquiror (a) a copy of each report, schedule, registration statement and other
document filed, published, announced or received by it during such period
pursuant to the requirements of Federal or state securities laws, as applicable
(other than reports or documents which such party is not permitted to disclose
under applicable law) and (b) consistent with its legal obligations, all other
information concerning its business, properties and personnel as Acquiror may
reasonably request.
 
     5.3.  Approvals and Consents; Cooperation.  Each of the Company and
Acquiror shall cooperate with each other and use (and shall take all reasonable
steps to cause each of their respective Subsidiaries to use) its reasonable
efforts to take or cause to be taken all actions, and do or cause to be done all
things, necessary, proper or advisable on their part under this Agreement and
applicable laws to consummate and make effective the Merger and the other
transactions contemplated by this Agreement as soon as practicable, including
(i) preparing and filing as promptly as practicable all documentation to effect
all necessary applications, notices, petitions, filings, and other documents and
to obtain as promptly as practicable all consents, waivers,
 
                                      A-24
<PAGE>   105
 
licenses, orders, registrations, approvals, permits, tax rulings and
authorizations necessary or advisable to be obtained from any third party and/or
any Governmental Entity in order to consummate the Merger or any of the other
transactions contemplated by this Agreement and (ii) taking all reasonable steps
as may be necessary to obtain all such consents, waivers, licenses,
registrations, permits, authorizations, tax rulings, orders and approvals.
Without limiting the generality of the foregoing, each of the Company and
Acquiror agrees to make all necessary filings in connection with the Required
Regulatory Approvals as promptly as practicable after the date of this
Agreement, and to use its reasonable efforts to furnish or cause to be
furnished, as promptly as practicable, all information and documents requested
with respect to such Required Regulatory Approvals and shall otherwise cooperate
with the applicable Governmental Entity in order to obtain any Required
Regulatory Approvals in as expeditious a manner as possible. Each of the Company
and Acquiror shall use its reasonable efforts to resolve such objections, if
any, as any Governmental Entity may assert with respect to this Agreement and
the transactions contemplated hereby in connection with the Required Regulatory
Approvals. In the event that a suit is instituted by a Person or Governmental
Entity challenging this Agreement and the transactions contemplated hereby as
violative of applicable antitrust or competition laws, each of the Company and
Acquiror shall use its reasonable efforts to resist or resolve such suit. With
respect to any action, suit, or proceeding pending or threatened before any
court or quasi-judicial or administrative agency of any federal, state, local,
or foreign jurisdiction or before any arbitrator wherein an unfavorable
injunction, judgment, order, decree, ruling, or charge would (i) prevent
consummation of any of the transactions contemplated by this Agreement, (ii)
cause any of the transactions contemplated by this Agreement to be rescinded
following consummation, (iii) affect adversely the right of any of Acquiror or
its Affiliates to own its assets and to operate its businesses or (iv) cause the
Company, the Company Sub, Acquiror or any of their Affiliates to pay damages in
connection with claims related to the transactions contemplated by this
Agreement, the Company and Acquiror (x) shall confer and cooperate with one
another in the defense thereof and (y) shall not, without the written consent of
the other (not to be unreasonably withheld), enter into any settlement, or
consent to the entry of any judgment, relating thereto; provided that neither
party may withhold its consent to any settlement or judgment which would not
have the effects described in clauses (i)-(iv) of this sentence and pursuant to
which it would be fully and unconditionally released from liability. The Company
and Acquiror each shall, upon request by the other, furnish the other with all
information concerning itself, its Subsidiaries, directors, officers and
stockholders and such other matters as may reasonably be necessary or advisable
in connection with the Schedule 13E-3 or the Proxy Statement or any other
statement, filing, tax ruling request, notice or application made by or on
behalf of the Company, Acquiror or any of their respective Subsidiaries to any
third party and/or any Governmental Entity in connection with the Merger or the
other transactions contemplated by this Agreement.
 
     5.4.  Stock Options and Restricted Stock.  The Company and each Company Sub
shall take all actions as may be necessary under the Company Stock Option Plans
to effect the cancellations described in Section 2.3 and shall comply with all
requirements regarding tax withholding in connection therewith. In addition to
the foregoing and subject to the terms of the Company Stock Option Plans and
applicable law, the Company shall take all actions necessary to cause the
Company Stock Option Plans to be terminated at or prior to the Effective Time,
and to satisfy Acquiror that no holder of Options, Restricted Stock Units or
other awards under such Plans, or participant in any Company Stock Option Plans,
will have any right to acquire any interest in the Company or Acquiror as a
result of the exercise of Options, Restricted Stock Units or other awards or
rights pursuant to such Company Stock Option Plans at or after the Effective
Time.
 
     5.5.  Acquisition Proposals.
 
          (a) Unless and until this Agreement shall have been terminated by
     either party pursuant to Article VII hereof, the Company shall not take or
     cause, directly or indirectly, any of the following actions with any party
     other than Acquiror or its designees: (i) solicit, knowingly encourage,
     initiate or participate in any negotiations, inquiries or discussions with
     respect to any offer or proposal to acquire all or any part of its
     business, assets or capital shares whether by merger, consolidation, other
     business combination, purchase of assets, tender or exchange offer or
     otherwise (each of the foregoing, an "Acquisition Proposal"); (ii)
     disclose, in connection with an Acquisition Proposal, any information or
     provide access to its properties, books or records, except as required by
     law or pursuant to a governmental
 
                                      A-25
<PAGE>   106
 
     request for information; (iii) enter into or execute any agreement relating
     to an Acquisition Proposal; or (iv) make or authorize any public statement,
     recommendation or solicitation in support of any Acquisition Proposal other
     than with respect to the Merger.
 
          (b) Notwithstanding the foregoing, in response to a bona fide,
     unsolicited, written Acquisition Proposal from a Third Party (that does not
     result from a breach of this Section 5.5), the Special Committee may, and
     may authorize and permit the Company's officers, directors, employees,
     financial advisors, representatives, or agents to, provide such Third Party
     with nonpublic information, otherwise facilitate any effort or attempt by
     such Third Party to make or implement such Acquisition Proposal, agree to
     or recommend or endorse any such Acquisition Proposal with or by any Third
     Party, and participate in discussions and negotiations with such Third
     Party relating to such Acquisition Proposal, if (i) the Special Committee
     believes in good faith (after consultation with its financial advisor) that
     such Acquisition Proposal (A) provides or is likely to provide for higher
     per share value to the stockholders of the Company, (B) is capable of being
     fully financed and performed and (C) is not subject or is not likely to be
     subject to any material conditions to which the Merger is not subject (a
     "Superior Proposal"), (ii) the Special Committee, after having consulted
     with and considered the advice of outside counsel, has reasonably
     determined in good faith that the failure to do so would cause the members
     of such Special Committee to breach their legal duties to the stockholders
     of the Company under applicable law and (iii) the Third Party has entered
     into a confidentiality agreement pertaining to nonpublic information
     regarding the Company containing customary terms and conditions. The
     Company agrees, if so requested by Acquiror in its sole and absolute
     discretion (such request must to be made within five business days after
     receipt by Acquiror of notice of the Superior Proposal from the Company in
     accordance with Section 5.5(c)), to enter into an agreement to consummate a
     transaction with Acquiror or its designee on terms providing equivalent
     value for the Company's stockholders to the value provided by the terms
     contained in the Superior Proposal, including without limitation on the
     same terms contained in the Superior Proposal (a "Matching Transaction").
     If Acquiror does not timely request to consummate a Matching Transaction
     following the Company's receipt of a Superior Proposal, the Special
     Committee (on behalf of the Company) may terminate this Agreement under
     Section 7.1(f) and accept such Superior Proposal, and the Special Committee
     may make or authorize any public statement, recommendation or solicitation
     in support of such Superior Proposal.
 
          (c) The Company shall notify Acquiror reasonably promptly after
     receipt by the Company (or any of their advisors) of any Acquisition
     Proposal or any request for nonpublic information in connection with an
     Acquisition Proposal or for access to the Company's properties, books or
     records by any person or entity that informs the Company that it is
     considering making, or has made, an Acquisition Proposal. Such notice shall
     be made orally and in writing and shall indicate in reasonable detail the
     identity of the offeror and the terms and conditions of such proposal,
     inquiry or contact. If the Acquisition Proposal is believed by the Special
     Committee to be a Superior Proposal, the Company shall reasonably promptly
     furnish to Acquiror all of the terms of such proposal and copies of any
     proposed agreement relating thereto. The Company shall continue to keep
     Acquiror informed, on a reasonably prompt basis, of the status of any
     discussions or negotiations of any Acquisition Proposal and the terms being
     discussed or negotiated.
 
          (d) The provisions of this Section 5.5 shall not constitute a waiver
     or limitation or in any way affect the rights of Acquiror or its Affiliates
     under the Organizational Documents of the Company or otherwise.
 
          (e) The provisions of this Section 5.5 shall not be deemed to affect
     any rights or claims in tort or otherwise of Acquiror or its Affiliates
     against any Person not affiliated with a party to this Agreement with
     respect to any attempt to interfere with, cause the termination of, or
     cause Acquiror or its Affiliates to lose any benefits under, this
     Agreement.
 
     5.6.  [Intentionally Omitted].
 
     5.7.  Withholding/Foreign Persons.  The Company shall promptly take all
steps necessary to ensure compliance, and shall comply, with all withholding
obligations with respect to any foreign stockholders of the Company in
connection with the payment of the Merger Consideration.
                                      A-26
<PAGE>   107
 
     5.8.  Public Announcements.  The Company and Acquiror shall use all
reasonable efforts to develop a joint communications plan and each party shall
use all reasonable efforts (i) to ensure that all press releases and other
public statements with respect to the transactions contemplated hereby shall be
consistent with such joint communications plan, and (ii) unless otherwise
required by applicable law or by obligations pursuant to any listing agreement
with or rules of any securities exchange, to consult with each other before
issuing any press release or otherwise making any public statement with respect
to this Agreement or the transactions contemplated hereby.
 
     5.9.  Director and Officer Liability.  For six years after the Effective
Time, Acquiror will cause the Surviving Entity to indemnify and hold harmless
the present and former officers and directors of the Company in respect of acts
or omissions occurring prior to the Effective Time to the extent provided under
the Company's Organizational Documents in effect on the date hereof; provided
that such indemnification shall be subject to any limitation imposed from time
to time by applicable law. For six years after the Effective Time, Acquiror will
cause the Surviving Entity to provide officers' and directors' liability
insurance in respect of acts or omissions occurring prior to the Effective Time
covering each such person currently covered by the Company's officers' and
directors' liability insurance policy on terms with respect to coverage and
amount no less favorable than those of such policy in effect on the date hereof.
 
     5.10.  Payment of Dividends.  Prior to the Effective Time, the Company
shall pay any and all dividends or make any other distributions with respect to
the Company Common Stock which have been declared or made by the Company as
permitted by this Agreement. The record date and amount of any dividends or any
other distributions with respect to the Company Common Stock which have been
declared or made by the Company prior to the date of this Agreement and which
remain unpaid as of the date of this Agreement are set forth on Schedule 5.10 to
the Company Disclosure Letter.
 
     5.11.  Further Assurances.  In case at any time after the Effective Time
any further action is reasonably necessary to carry out the purposes of this
Agreement, the proper officers of the Company and Acquiror shall take any such
reasonably necessary action.
 
                                   ARTICLE VI
 
                              CONDITIONS PRECEDENT
 
     6.1.  Conditions to Each Party's Obligation to Effect the Merger.  The
obligations of the Company and Acquiror to effect the Merger are subject to the
satisfaction or waiver on or prior to the Closing Date of the following
conditions (it being understood that, in the case of the Company, any
determination as to the satisfaction or waiver of any of the following
conditions shall be made only by the Special Committee on behalf of the
Company):
 
          (a) Required Company Votes.  The Company shall have obtained the
     Required Company Votes.
 
          (b) No Injunctions or Restraints, Illegality.  No temporary
     restraining order, preliminary or permanent injunction or other order
     issued by a court or other Governmental Entity of competent jurisdiction
     shall be in effect and have the effect of making the Merger illegal or
     otherwise prohibiting consummation of the Merger; provided, however, that
     the provisions of this Section 6.1(b) shall not be available to any party
     whose failure to fulfill its obligations pursuant to Section 5.3 shall have
     been the cause of, or shall have resulted in, such order or injunction.
 
          (c) HSR Act.  If applicable, the waiting period (and any extension
     thereof) applicable to the Merger under the HSR Act shall have been
     terminated or shall have expired.
 
     6.2.  Additional Conditions to Obligations of Acquiror.  The obligations of
Acquiror to effect the Merger are subject to the satisfaction of, or waiver by
Acquiror, on or prior to the Closing Date, of the following additional
conditions:
 
          (a) Representations and Warranties.  Each of the representations and
     warranties of the Company set forth in this Agreement that is qualified as
     to materiality shall have been true and correct when made
 
                                      A-27
<PAGE>   108
 
     and shall be true and correct on and as of the Closing Date as if made on
     and as of such date (other than representations and warranties which
     address matters only as of a certain date which shall be true and correct
     as of such certain date), and each of the representations and warranties of
     the Company that is not so qualified shall have been true and correct in
     all material respects when made and shall be true and correct in all
     material respects on and as of the Closing Date as if made on and as of
     such date (other than representations and warranties which address matters
     only as of a certain date which shall be true and correct in all material
     respects as of such certain date).
 
          (b) Performance of Obligations of the Company.  The Company shall have
     performed or complied with all agreements and covenants required to be
     performed by it under this Agreement at or prior to the Closing Date that
     are qualified as to materiality and shall have performed or complied in all
     material respects with all other agreements and covenants required to be
     performed by it under this Agreement at or prior to the Closing Date that
     are not so qualified as to materiality.
 
          (c) REIT Tax Opinion.  Acquiror shall have received an opinion of
     Davis Polk & Wardwell, counsel to the Company, in form and substance
     reasonably satisfactory to Acquiror, dated as of the Effective Time,
     substantially to the effect that (i) commencing with the taxable year ended
     December 31, 1993, the Company has been organized and has operated in
     conformity with the requirements for qualification as a REIT within the
     meaning of the Code, (ii) commencing with its taxable year ended December
     31, 1998, the Trust has been organized and has operated in conformity with
     the requirements for qualification as a REIT within the meaning of the Code
     and (iii) the OP and each other Company Sub which is a partnership has
     been, at all times since it has been a Company Sub, and continues to be,
     treated for federal income tax purposes as a partnership and not as an
     association or publicly traded partnership taxable as a corporation (in
     each case with customary exceptions, conditions, assumptions and
     qualifications).
 
          (d) Cancellation of Options and Restricted Stock Units.  All Options
     and Restricted Stock Units under any Company Stock Option Plan shall be
     canceled in accordance with Section 2.3, and no holder of Options,
     Restricted Stock Units (or dividend equivalents relating thereto) or other
     awards under any Company Stock Option Plan or any other incentive
     compensation plans of the Company or any Company Sub shall have any further
     rights thereunder or any right or interest in the Company or Acquiror on or
     after the Effective Time, except as provided in the Retention Agreements.
     There shall be (i) no outstanding awards under any Company Stock Option
     Plan and (ii) no outstanding options, warrants or other rights to acquire
     stock or other forms of equity from the Company.
 
     6.3.  Additional Conditions to Obligations of the Company.  The obligations
of the Company to effect the Merger are subject to the satisfaction of, or
waiver by the Company on or prior to the Closing Date of the following
additional conditions (it being understood that any determination as to the
satisfaction or waiver of any of the following conditions shall be made only by
the Special Committee on behalf of the Company):
 
          (a) Representations and Warranties.  Each of the representations and
     warranties of Acquiror set forth in this Agreement that is qualified as to
     materiality shall have been true and correct when made and shall be true
     and correct on and as of the Closing Date as if made on and as of such date
     (other than representations and warranties which address matters only as of
     a certain date which shall be true and correct as of such certain date),
     and each of the representations and warranties of Acquiror that is not so
     qualified shall have been true and correct in all material respects when
     made and shall be true and correct in all material respects on and as of
     the Closing Date as if made on and as of such date (other than
     representations and warranties which address matters only as of a certain
     date which shall be true and correct in all material respects as of such
     certain date).
 
          (b) Performance of Obligations of Acquiror.  Acquiror shall have
     performed or complied with all agreements and covenants required to be
     performed by it under this Agreement at or prior to the Closing Date that
     are qualified as to materiality and shall have performed or complied in all
     material respects with all agreements and covenants required to be
     performed by it under this Agreement at or prior to the Closing Date that
     are not so qualified as to materiality.
 
                                      A-28
<PAGE>   109
 
                                  ARTICLE VII
 
                           TERMINATION AND AMENDMENT
 
     7.1.  Termination.  This Agreement may be terminated at any time prior to
the Effective Time, by action taken or authorized by the Special Committee (on
behalf of the Company) or the Managing Member (on behalf of the Acquiror),
whether before or after approval of the matters presented in connection with the
Merger by the stockholders of the Company:
 
          (a) By mutual written consent of Acquiror and the Special Committee
     (on behalf of the Company), by action of the Managing Member of the
     Acquiror and the Special Committee (on behalf of the Company);
 
          (b) By either the Special Committee (on behalf of the Company) or
     Acquiror if the Merger shall not have been consummated by the date which is
     eight months from the date of this Agreement (the "Outside Date"); provided
     that the right to terminate this Agreement under this Section 7.1(b) shall
     not be available to any party whose failure to fulfill any obligation under
     this Agreement has been the cause of, or resulted in, the failure of the
     Merger to occur on or before such date;
 
          (c) By either the Special Committee (on behalf of the Company) or
     Acquiror if any Governmental Entity shall have issued an order, decree or
     ruling or taken any other action (which order, decree, ruling or other
     action the parties shall have used their reasonable efforts to resist,
     resolve or lift, as applicable, subject to the provisions of Section 5.3)
     permanently restraining, enjoining or otherwise prohibiting the
     transactions contemplated by this Agreement, and such order, decree, ruling
     or other action shall have become final and nonappealable;
 
          (d) By either Acquiror or the Special Committee (on behalf of the
     Company) if the Required Company Votes shall not have been obtained at a
     duly held meeting of stockholders or at any adjournment thereof; provided
     that the right to terminate this Agreement under this Section 7.1(d) shall
     not be available to the Company if it fails to fulfill its obligations
     under Section 5.1 and Section 5.5;
 
          (e) By Acquiror, if (i) after the receipt by the Company of an
     Acquisition Proposal, the Special Committee or the Board of Directors of
     the Company (including a majority of the members of the Special Committee)
     shall have withdrawn or modified its recommendation of this Agreement or
     the Merger, (ii) after the receipt by the Company of an Acquisition
     Proposal (which Acquisition Proposal is public), Acquiror requests in
     writing that the Special Committee or the Board of Directors of the Company
     publicly reconfirm its recommendation of this Agreement and the Merger to
     the stockholders of the Company and the Special Committee or the Board of
     Directors of the Company (including a majority of the members of the
     Special Committee), as applicable, fails to do so within 5 business days
     after its receipt of Acquiror's request; (iii) the Special Committee or the
     Board of Directors of the Company (including a majority of the members of
     the Special Committee) shall have recommended to the stockholders of the
     Company an Alternative Transaction; (iv) a tender offer or exchange offer
     for 20% or more of the outstanding shares of Company Common Stock is
     commenced (other than by the Company or an Affiliate of the Company) and
     the Special Committee or the Board of Directors of the Company (including a
     majority of the members of the Special Committee) recommends that the
     stockholders of the Company tender their shares in such tender or exchange
     offer; or (v) the Company fails to call and hold the Company Stockholders
     Meeting by the Outside Date in breach of Section 5.1(c).
 
          (f) By the Special Committee (on behalf of the Company), prior to the
     approval of this Agreement by the stockholders of the Company, if the
     Company and the Special Committee have complied in all respects with
     Section 5.5, and the Special Committee has determined to accept a Superior
     Proposal; provided, however, that no termination shall be effective
     pursuant to this Section 7.1(f) under circumstances in which a Break-Up Fee
     is payable by the Company pursuant to Section 7.2(c)(iii), unless
     concurrently with such termination, such Break-Up Fee is paid in full by
     the Company in accordance with Section 7.2(c)(iii), as applicable;
 
                                      A-29
<PAGE>   110
 
          (g) By Acquiror, upon a material breach of any covenant or agreement
     on the part of the Company set forth in this Agreement, or if (i) any
     representation or warranty of the Company that is qualified as to
     materiality shall have become untrue or (ii) any representation or warranty
     of the Company that is not so qualified shall have become untrue in any
     material respect, in each case such that the conditions set forth in
     Section 6.2(a) or Section 6.2(b) would not be satisfied (a "Terminating
     Company Breach"); provided, however, that, if such Terminating Company
     Breach is capable of being cured by the Company prior to the Effective
     Time, for so long as the Company continues in good faith to attempt to cure
     such breach, Acquiror may not terminate this Agreement under this Section
     7.1(g); or
 
          (h) By the Special Committee (on behalf of the Company), upon a
     material breach of any covenant or agreement on the part of Acquiror set
     forth in this Agreement, or if (i) any representation or warranty of
     Acquiror that is qualified as to materiality shall have become untrue or
     (ii) any representation or warranty of Acquiror that is not so qualified
     shall have become untrue in any material respect, in each case such that
     the conditions set forth in Section 6.3(a) or Section 6.3(b) would not be
     satisfied ("Terminating Acquiror Breach"); provided, however, that, if such
     Terminating Acquiror Breach is capable of being cured by Acquiror prior to
     the Effective Time, for so long as Acquiror continues in good faith to
     attempt to cure such breach, the Company may not terminate this Agreement
     under this Section 7.1(h).
 
     7.2.  Expenses.
 
          (a) Except as otherwise provided in this Section 7.2, all Expenses
     incurred in connection with this Agreement and the transactions
     contemplated hereby shall be paid by the party incurring such Expenses. As
     used in this Agreement, "Expenses" includes all reasonable out-of-pocket
     expenses (including, without limitation, all reasonable fees and expenses
     of counsel, accountants, investment bankers, experts and consultants to a
     party hereto and its affiliates) incurred by a party or on its behalf in
     connection with or related to the authorization, preparation, negotiation,
     execution and performance of this Agreement and the transactions
     contemplated hereby, including the preparation, printing, filing and
     mailing of the Schedule 13E-3 and Proxy Statement and the solicitation of
     stockholder approvals and all other matters related to the transactions
     contemplated hereby.
 
          (b) Notwithstanding the foregoing, if (i) the Special Committee or the
     Board of Directors of the Company (including a majority of the members of
     the Special Committee) withdraw, modify or change any recommendation
     regarding this Agreement or the Merger, or recommend any other offer or
     proposal, as contemplated in Section 5.1(c) and (ii) the condition set
     forth in Section 6.1(a) is not satisfied, then the Company shall pay all of
     the Expenses incurred by Acquiror.
 
          (c) The Company shall pay Acquiror a Break-Up Fee upon the earliest to
     occur of the following events:
 
             (i) the termination of this Agreement by either Acquiror or the
        Company pursuant to Section 7.1(d), if a proposal for an Alternative
        Transaction involving the Company shall have been publicly announced
        prior to the Company Stockholders' Meeting and either a definitive
        agreement for an Alternative Transaction is entered into, or such
        Alternative Transaction (or another Alternative Transaction with the
        proponent of such transaction or an Affiliate) is consummated, within
        eighteen months of such termination;
 
             (ii) the termination of this Agreement by Acquiror pursuant to
        Section 7.1(e); or
 
             (iii) the termination of this Agreement by the Special Committee
        (on behalf of the Company) pursuant to Section 7.1(f).
 
The Company's payment of a Break-Up Fee pursuant to this subsection shall be the
sole and exclusive remedy of Acquiror against the Company and any of its
Subsidiaries and their respective directors, officers, employees, agents,
advisors or other representatives with respect to the occurrences giving rise to
such payment; provided that this limitation shall not apply in the event of a
willful breach of this Agreement by the Company.
 
                                      A-30
<PAGE>   111
 
          (d) The Break-Up Fee payable pursuant to Section 7.2(c) shall be paid
     concurrently with the first to occur of the events described in Section
     7.2(c)(i), (ii) or (iii).
 
          (e) As used in this Agreement, "Alternative Transaction" means either
     (i) a transaction pursuant to which any Third Party acquires more than 20%
     of the outstanding shares of Company Common Stock pursuant to a tender
     offer or exchange offer or otherwise, (ii) a merger or other business
     combination involving the Company pursuant to which any Third Party (or the
     stockholders of a Third Party) acquires more than 20% of the outstanding
     shares of Company Common Stock or the entity surviving such merger or
     business combination, or (iii) any other transaction pursuant to which any
     Third Party acquires control of assets (including for this purpose the
     outstanding equity securities of Subsidiaries of the Company and the entity
     surviving any merger or business combination including any of them) of the
     Company having a fair market value (as determined by the Special Committee
     of the Company in good faith) equal to more than 20% of the fair market
     value of all the assets of the Company and its Subsidiaries, taken as a
     whole, immediately prior to such transaction.
 
          (f) The "Break-Up Fee" shall be an amount equal to $19,250,000.
 
     7.3.  Effect of Termination.  In the event of termination of this Agreement
by either the Company or Acquiror as provided in Section 7.1, this Agreement
shall forthwith become void and there shall be no liability or obligation on the
part of Acquiror or the Company or their respective officers, members or
directors except (i) with respect to Section 5.6 and (ii) with respect to any
liabilities or damages incurred or suffered by a party as a result of the breach
by the other party of any of its representations, warranties, covenants or other
agreements set forth in this Agreement.
 
     7.4.  Amendment.  This Agreement may be amended by the parties hereto, by
action taken or authorization of the Special Committee (on behalf of the
Company) and the Managing Member of Acquiror, at any time before or after
approval of the matters presented in connection with the Merger by the
stockholders of the Company, but, after any such approval, no amendment shall be
made which by law or in accordance with the rules of the NYSE requires further
approval by such stockholders without such further approval. This Agreement may
not be amended except by an instrument in writing signed on behalf of each of
the parties hereto.
 
     7.5.  Extension; Waiver.  At any time prior to the Effective Time, the
parties hereto, by action taken or authorization of the Special Committee (on
behalf of the Company) and the Managing Member of Acquiror, may, to the extent
legally allowed, (i) extend the time for the performance of any of the
obligations or other acts of the other party hereto, (ii) waive any inaccuracies
in the representations and warranties contained herein or in any document
delivered pursuant hereto and (iii) waive compliance with any of the agreements
or conditions contained herein. Any agreement on the part of a party hereto to
any such extension or waiver shall be valid only if set forth in a written
instrument signed on behalf of such party. No delay on the part of any party
hereto in exercising any right, power or privilege hereunder shall operate as a
waiver thereof, nor shall any waiver on the part of any party hereto of any
right, power or privilege hereunder operate as a waiver of any other right,
power or privilege hereunder, nor shall any single or partial exercise of any
right, power or privilege hereunder preclude any other or further exercise
thereof or the exercise of any other right, power or privilege hereunder. Unless
otherwise provided, the rights and remedies herein provided are cumulative and
are not exclusive of any rights or remedies which the parties hereto may
otherwise have at law or in equity. The failure of any party to this Agreement
to assert any of its rights under this Agreement or otherwise shall not
constitute a waiver of those rights.
 
                                  ARTICLE VIII
 
                               GENERAL PROVISIONS
 
     8.1.  Non-Survival of Representations, Warranties and Agreements; No Other
Representations and Warranties.  None of the representations, warranties,
covenants and other agreements in this Agreement or in any instrument delivered
pursuant to this Agreement, including any rights arising out of any breach of
such representations, warranties, covenants and other agreements, shall survive
the Effective Time, except for those

                                      A-31
<PAGE>   112
 
covenants and agreements contained herein and therein that by their terms apply
or are to be performed in whole or in part after the Effective Time. Each party
hereto agrees that, except for the representations and warranties contained in
this Agreement, neither of the Company nor Acquiror makes any other
representations or warranties, and each hereby disclaims any other
representations and warranties made by itself or any of its officers, directors,
members, employees, agents, financial and legal advisors or other
representatives, with respect to the execution and delivery of this Agreement,
the documents and the instruments referred to herein, or the transactions
contemplated hereby or thereby, notwithstanding the delivery or disclosure to
the other party or the other party's representatives of any documentation or
other information with respect to any one or more of the foregoing.
 
     8.2.  Notices.  All notices and other communications hereunder shall be in
writing and shall be deemed duly given (a) on the date of delivery if delivered
personally, (b) on the first Business Day following the date of dispatch if
delivered by a nationally recognized next-day courier service, (c) on the fifth
Business Day following the date of mailing if delivered by registered or
certified mail, return receipt requested, postage prepaid or (d) if sent by
facsimile transmission, with a copy mailed on the same day in the manner
provided in (a) or (b) above, when transmitted and receipt is acknowledged. All
notices hereunder shall be delivered as set forth below, or pursuant to such
other instructions as may be designated in writing by the party to receive such
notice:
 
          (a) if to Acquiror, to TIC Acquisition LLC, 550 Newport Center Drive,
     Suite 900, Newport Beach, California 92660, Attention: Michael D. McKee,
     Facsimile No. (949) 720-2599, with copies to Thomas W. Dobson, Latham &
     Watkins, 633 West Fifth Street, Suite 4000, Los Angeles, California 90071,
     Facsimile No. (213) 891-8763, and William J. Cernius, 650 Town Center
     Drive, Suite 2000, Costa Mesa, California 92626, Facsimile No. (714)
     755-8290;
 
          (b) if to the Company, to Irvine Apartment Communities, Inc.,
     Attention: President, Facsimile No. (949) 720-5503, with a copy to Jeffrey
     Small, Davis Polk & Wardwell, 450 Lexington Avenue, New York, New York
     10017, Facsimile No. (212) 450-4800.
 
     8.3.  Interpretation.  When a reference is made in this Agreement to
Sections, Exhibits or Schedules, such reference shall be to a Section of or
Exhibit or Schedule to this Agreement unless otherwise indicated. The table of
contents, glossary of defined terms and headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. Whenever the words "include", "includes" or
"including" are used in this Agreement, they shall be deemed to be followed by
the words "without limitation." The parties have participated jointly in the
negotiation and drafting of this Agreement. In the event an ambiguity or
question of intent or interpretation arises, this Agreement shall be construed
as if drafted jointly by the parties and no presumption or burden or proof shall
arise favoring or disfavoring any party by virtue of the authorship of any of
the provisions of this Agreement. Any reference to any federal, state, local or
foreign statute or law shall be deemed also to refer to all rules and
regulations promulgated thereunder, unless the content requires otherwise. It is
understood and agreed that neither the specifications of any dollar amount in
this Agreement nor the inclusion of any specific item in the Schedules or
Exhibits is intended to imply that such amounts or higher or lower amounts, or
the items so included or other items, are or are not material, and neither party
shall use the fact of setting of such amounts or the fact of the inclusion of
such item in the Schedules or Exhibits in any dispute or controversy between the
parties as to whether any obligation, item or matter is or is not material for
purposes hereof.
 
     8.4.  Counterparts.  This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other party, it being understood that both
parties need not sign the same counterpart.
 
     8.5.  Entire Agreement; No Third Party Beneficiaries.
 
          (a) This Agreement (including the Schedules and Exhibits) constitutes
     the entire agreement and supersedes all prior agreements and
     understandings, both written and oral, among the parties with respect to
     the subject matter hereof.
 
                                      A-32
<PAGE>   113
 
          (b) This Agreement shall be binding upon and inure solely to the
     benefit of each party hereto, and nothing in this Agreement, express or
     implied, except for Sections 2.1, 2.3 and 5.9, 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.
 
     8.6.  Governing Law.  Except to the extent that the MGCL shall govern the
Merger, this Agreement shall be governed and construed in accordance with the
laws of the State of Delaware, without regard to the laws that might be
applicable under conflicts of laws principles.
 
     8.7.  Severability.  If any term or other provision of this Agreement is
invalid, illegal or incapable of being enforced by any law or public policy, all
other terms 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 materially 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 in order that the
transactions contemplated hereby are consummated as originally contemplated to
the greatest extent possible. Any provision of this Agreement held invalid or
unenforceable only in part, degree or certain jurisdictions will remain in full
force and effect to the extent not held invalid or unenforceable. To the extent
permitted by applicable law, each party waives any provision of law which
renders any provision of this Agreement invalid, illegal or unenforceable in any
respect.
 
     8.8.  Assignment.  This Agreement and the rights, interests and obligations
hereunder shall not be assigned, except by Acquiror to a party which, in a
written instrument shall agree to assume all of Acquiror's obligations hereunder
and be bound by all of the terms and conditions of this Agreement; provided,
however, that no such assignment shall relieve the Acquiror of its obligations
hereunder. Subject to the preceding sentence, this Agreement will be binding
upon, inure to the benefit of and be enforceable by the parties and their
respective successors and assigns.
 
     8.9.  Enforcement.  The parties agree that irreparable damage would occur
in the event that any of the provisions of this Agreement were not performed in
accordance with their specific terms. It is accordingly agreed that the parties
shall be entitled to specific performance of the terms hereof, this being in
addition to any other remedy to which they are entitled at law or in equity.
 
     8.10.  Definitions.  As used in this Agreement:
 
          (a) "Affiliate" means an affiliate, as defined in Rule 405 promulgated
     under the Securities Act; provided, that the Company and the Company Subs
     shall not be deemed Affiliates of Acquiror or its members or their
     Affiliates for purposes of this Agreement. For the avoidance of doubt, for
     purposes of this Agreement, TIC shall be an Affiliate of Acquiror.
 
          (b) "Board of Directors" means the Board of Directors of any specified
     Person and any properly serving and acting committees thereof.
 
          (c) "Business Day" means any day on which banks are not required or
     authorized to close in the City of New York.
 
          (d) "Company Affiliate" shall mean any entity which is (or at any
     relevant time was) treated as a single employer with the Company or any
     Company Sub under Section 414 of the Code or Section 4001(b)(11) of ERISA.
 
          (e) "Company Disclosure Letter" means the letter previously delivered
     to Acquiror by the Company disclosing certain information in connection
     with this Agreement.
 
          (f) "Company Stock Option Plans" means the Company's 1993 Stock Option
     Plan for Directors, 1993 Long-Term Stock Incentive Plan and 1996 Long-Term
     Stock Incentive Plan, each as amended.
 
          (g) "Company Sub" means a Subsidiary of the Company (excluding any
     Subsidiary of the Company which is inactive, has no business operations and
     has no liabilities).
 
                                      A-33
<PAGE>   114
 
          (h) "Knowledge" means the actual knowledge after reasonable
     investigation of the executive officers of the applicable entity.
 
          (i) "Material Adverse Effect" means, with respect to any Person, any
     adverse change, circumstance or effect that, individually or in the
     aggregate with all other adverse changes, circumstances and effects, would
     be materially adverse to the business, operations, financial condition or
     results of operations of such Person and its Subsidiaries taken as a whole;
     provided that, with respect to Section 3.1(o) only, in no event shall any
     change, circumstance or effect relating to or arising out of (i) the fact
     or terms of this Agreement or the Merger; (ii) general economic or market
     conditions; or (iii) the real estate development industry generally
     constitute a Material Adverse Effect.
 
          (j) "OP Units" shall mean any of (i) limited partnership units of the
     OP, (ii) general partnership units of the OP, (iii) Series A Preferred
     Limited Partner Units of the OP and (iv) Series B Preferred Limited Partner
     Units of the OP.
 
          (k) "Organizational Documents" means, with respect to any entity, the
     charter, certificate of incorporation, bylaws, partnership agreement,
     declaration of trust or other governing documents of such entity, including
     any documents designating or certifying the terms of any security of such
     entity.
 
          (l) "Person" means an individual, corporation, partnership, limited
     partnership, limited liability company association, trust, unincorporated
     organization, entity or group (as defined in the Exchange Act).
 
          (m) "Required Company Votes" means (i) the affirmative vote of the
     holders of two-thirds of the total number of outstanding shares of Company
     Common Stock in favor of this Agreement and the Merger and (ii) the
     affirmative vote of a number of shares of Company Common Stock (excluding
     the shares held by Acquiror and its Affiliates) representing a majority of
     the total number of outstanding shares of Company Common Stock.
 
          (n) "Required Regulatory Approvals" means all authorizations,
     consents, orders and approvals of, and declarations and filings with, and
     all expirations of waiting periods imposed by, any Governmental Entity
     which, if not obtained in connection with the consummation of the
     transactions contemplated hereby, would have a Material Adverse Affect on
     TIC or the Company.
 
          (o) "Subsidiary" when used with respect to any party means any
     corporation, partnership, limited partnership, limited liability company or
     other organization, whether incorporated or unincorporated, any equity
     interests of which are owned by such party or by a Subsidiary of such
     party, or which is consolidated with such party for financial reporting
     purposes.
 
          (p) (i) "Tax" (including, with correlative meaning, the terms "Taxes"
     and "Taxable") means all federal, state, local and foreign income, profits,
     franchise, gross receipts, environmental, customs duty, stock, severance,
     stamp, payroll, sales, employment, unemployment disability, use, property,
     withholding, excise, production, value added, occupancy and other taxes,
     duties or assessments of any nature whatsoever, together with all interest,
     penalties, fines and additions to tax imposed with respect to such amounts
     and any interest in respect of such penalties and additions to tax, and
     (ii) "Tax Return" means all returns and reports (including elections,
     claims, declarations, disclosures, schedules, estimates, computations and
     information returns) required to be supplied to a Tax authority in any
     jurisdiction.
 
          (q) "the other party" means, with respect to the Company, Acquiror and
     means, with respect to Acquiror, the Company.
 
          (r) "Third Party" shall mean any Person other than the Company,
     Acquiror and their respective Affiliates.
 
          (s) "Trust Shares" shall mean Series A Preferred Securities of the
     Trust.
 
                                      A-34
<PAGE>   115
 
     IN WITNESS WHEREOF, the Company and Acquiror have caused this Agreement to
be signed by their respective officers thereunto duly authorized, all as of
February 1, 1999.
 
                                          TIC ACQUISITION LLC,
                                          a Delaware limited liability company
 
                                          By: /s/ MICHAEL D. MCKEE
 
                                          --------------------------------------
                                              Michael D. McKee
                                              Authorized Signatory
 
                                          IRVINE APARTMENT COMMUNITIES, INC.,
                                          a Maryland corporation
 
                                          By: /s/ WILLIAM H. MCFARLAND
 
                                          --------------------------------------
                                              William H. McFarland
                                              President
 
                                      A-35
<PAGE>   116
 
                                                                      APPENDIX B
 
MORGAN STANLEY DEAN WITTER                              1585 BROADWAY
                                                        NEW YORK, NEW YORK 10036
                                                        (212) 761-4000
 
   
                                              February 1, 1999
    
 
Board of Directors
Irvine Apartment Communities
550 Newport Center Drive, Suite 300
Irvine, CA 92660
 
Members of the Board:
 
     We understand that Irvine Apartment Communities (the "Company") and TIC
Acquisition LLC ("Acquisition Sub"), a wholly owned subsidiary of The Irvine
Company ("TIC"), propose to enter into an Agreement and Plan of Merger
substantially in the form of the draft dated January 29, 1999 (the "Merger
Agreement") which provides, among other things, for the merger (the "Merger") of
Acquisition Sub with and into the Company. Pursuant to the Merger, Acquisition
Sub will become a wholly owned subsidiary of TIC, and each outstanding share of
common stock, par value $.01 per share (the "Company Common Stock"), of the
Company will be converted into the right to receive $34.00 per share in cash,
subject to adjustment in certain circumstances. The terms and conditions of the
Merger are more fully set forth in the Merger Agreement. We further understand
that approximately 17% of the outstanding shares of the Company Common Stock are
owned by TIC and its affiliates.
 
     You have asked for our opinion as to whether the consideration to be
received by the holders of shares of the Company Common Stock pursuant to the
Merger Agreement is fair from a financial point of view to such holders (other
than TIC and its affiliates).
 
     For purposes of the opinion set forth herein, we have:
 
          (i) reviewed certain publicly available financial statements and other
     information of the Company;
 
          (ii) reviewed certain internal financial statements and other
     financial and operating data concerning the Company prepared by the
     management of the Company;
 
          (iii) reviewed certain financial projections prepared by the
     management of the Company;
 
          (iv) discussed the past and current operations and financial condition
     and the prospects of the Company with senior executives of the Company;
 
          (v) reviewed the reported prices and trading activity for the Company
     Common Stock;
 
          (vi) compared the financial performance of the Company and the prices
     and trading activity of the Company 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) participated in discussions and negotiations among
     representatives of the Company and TIC and their financial and legal
     advisors;
 
          (ix) reviewed the draft Merger Agreement and certain related
     documents;
 
          (x) reviewed and taken into consideration the governance provisions of
     the Company;
 
          (xi) considered the Company's ability to execute its business plan if
     the Merger were not consummated; and
 
                                       B-1
<PAGE>   117
 
          (xii) performed such other analyses and considered such other factors
     as we have deemed 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 judgments of the future financial performance of the
Company. We have not made any independent valuation or appraisal of the assets
or liabilities of the Company, nor have we been furnished with any such
appraisals. Our opinion is necessarily based on financial, economic, market and
other conditions as in effect on, and the information made available to us as
of, the date hereof.
 
     In arriving at our opinion, we were not authorized to solicit, and did not
solicit, interest from any party with respect to the acquisition, business
combination or other extraordinary transaction, involving the Company, nor did
we negotiate with any other parties.
 
     We have acted as financial advisor to the Company 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 Board of
Directors of the Company, except that this opinion may be included in its
entirety in any filing made by the Company in respect of this transaction with
the Securities and Exchange Commission.
 
     Based upon and subject to the foregoing, we are of the opinion on the date
hereof that the consideration to be received by the holders of shares of the
Company Common Stock pursuant to the Merger Agreement is fair from a financial
point of view to such holders (other than TIC and its affiliates).
 
                                          Very truly yours,
 
                                          MORGAN STANLEY & CO. INCORPORATED
 
                                          By: /s/ SCOTT M. KELLEY
 
                                            ------------------------------------
                                            Scott M. Kelley
                                            Managing Director
 
                                       B-2
<PAGE>   118
 
                                                                      APPENDIX C
 
                               THE IRVINE COMPANY
                            550 Newport Center Drive
                            Newport Beach, CA 92660
 
                                                                February 1, 1999
 
Irvine Apartment Communities, Inc.
550 Newport Center Drive
Newport Beach, CA 92660
 
Gentlemen:
 
     In connection with that certain Agreement and Plan of Merger, dated as of
February 1, 1999 (the "Merger Agreement"), between TIC Acquisition LLC
("Acquiror") and Irvine Apartment Communities, Inc. (the "Company"), you have
requested that The Irvine Company ("TIC") make certain representations,
warranties and covenants. In order to facilitate the transactions contemplated
by the Merger Agreement, TIC hereby makes the representations, warranties and
covenants set forth in this letter agreement. All capitalized terms not defined
herein shall have the meanings set forth in the Merger Agreement.
 
          1. Ownership of Acquiror/Availability of Funds. All of Acquiror's
     membership interests are owned by TIC and a wholly-owned Subsidiary of TIC.
     TIC is the sole managing member of Acquiror. TIC shall take no action that
     would cause Acquiror not to have a minimum of $150 million of cash on hand
     from the date of the Merger Agreement through the earlier of (i) the
     Effective Time and (ii) sixty (60) days following the termination of the
     Merger Agreement pursuant to the terms thereof. Prior to the earlier of (i)
     the Effective Time and (ii) sixty (60) days following the termination of
     the Merger Agreement pursuant to the terms thereof, TIC shall not permit
     Acquiror to engage in any business or transaction other than business or
     transactions related to the transactions contemplated by the Merger
     Agreement.
 
          2. Ownership of Stock. From the date hereof to the earlier of (i) the
     Effective Time and (ii) the termination of the Merger Agreement pursuant to
     the terms thereof, TIC shall not, and shall not permit any of its
     Subsidiaries to, sell or otherwise dispose of any of the shares of Company
     Common Stock owned by them. At the Company Stockholders Meeting, or any
     adjournment thereof, TIC shall, and shall cause its Subsidiaries to, vote
     the shares of Company Common Stock owned by them in favor of the Merger.
 
          3. Cooperation. TIC shall take all actions necessary to cooperate with
     Acquiror, and shall take all actions necessary to cause Acquiror to comply
     with its obligations, in connection with Sections 5.1(a), 5.8 and 5.9
     (insofar as it pertains to insurance only) of the Merger Agreement;
     provided that with respect to Section 5.9 of the Merger Agreement, TIC
     shall be deemed to have satisfied its obligations hereunder (and the
     obligations of Acquiror under the Merger Agreement) by causing Acquiror to
     purchase an appropriate policy of insurance. TIC agrees to cooperate with
     Acquiror and the Company in connection with the Merger Agreement and to use
     reasonable efforts to cause Acquiror to consummate the Merger; provided
     that TIC shall have no obligation to contribute any funds to Acquiror in
     connection with the Merger.
 
     The rights and obligations of the parties to this letter agreement shall
bind and inure to the benefit of the respective successors and assigns of the
parties hereto.
 
     This letter agreement shall be governed by and construed in accordance with
the laws of the State of Delaware, without giving effect to conflicts of law
principles.
 
     This letter agreement constitutes the full and complete understanding and
agreement of the parties hereto and supersedes all prior understandings and
agreements with respect to the subject matter hereof. Any waiver,
 
                                       C-1
<PAGE>   119
 
modification or amendment of any provision of this letter agreement shall be
effective only if in writing and signed by the parties hereto.
 
     If the foregoing reflects your understanding of our agreement concerning
the matters set forth herein, please sign a copy of this letter agreement where
indicated below and return it to me.
 
                                          Very truly yours,
 
                                          The Irvine Company
 
                                          By: /s/ MICHAEL D. MCKEE
 
                                            ------------------------------------
                                            Michael D. McKee
                                            Chief Financial Officer
 
     The terms and conditions of the preceding letter agreement are accepted and
agreed to by the following:
 
                                          Irvine Apartment Communities, Inc.
 
                                          By: /s/ WILLIAM H. MCFARLAND
 
                                            ------------------------------------
                                            William H. McFarland
                                            Chief Executive Officer
 
                                       C-2
<PAGE>   120
 
- --------------------------------------------------------------------------------
 
PROXY                                                                      PROXY
 
                       IRVINE APARTMENT COMMUNITIES, INC.
 
                      SPECIAL MEETING,             , 1999
          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
     The undersigned Shareholder of Irvine Apartment Communities, Inc., a
Maryland corporation (the "Company"), hereby appoints                and
               , or either of them, as proxies for the undersigned, with full
power of substitution in each of them, to attend the Special Meeting of
Shareholders of the Company, to be held on             , 1999 at   :   m. and at
any adjournments or postponements thereof, to cast on behalf of the undersigned
all votes that the undersigned is entitled to cast at such meeting. The
undersigned hereby acknowledges receipt of the Notice of Special Meeting of
Shareholders and revokes any proxy heretofore given with respect to such
meeting.
 
   
     The votes entitled to be cast by the undersigned will be cast as instructed
on the reverse hereof. If this proxy is executed but no instruction is given,
the votes entitled to be cast by the undersigned will be cast FOR the proposals
as described in the accompanying Proxy Statement and in the discretion of the
proxy holder on any other matter that may properly come before the meeting or
any adjournment or postponement thereof.
    
 
     A MAJORITY (OR IF ANY ONE, THEN THAT ONE) OF THE ABOVE PERSONS OR THEIR
SUBSTITUTES WHO SHALL BE PRESENT AND ACTING AT THE MEETING SHALL HAVE THE POWERS
CONFERRED HEREBY.
 
        PLEASE COMPLETE, DATE, SIGN AND RETURN THIS PROXY CARD PROMPTLY
                   USING THE ENCLOSED POSTAGE-PAID ENVELOPE.
 
           DO NOT SUBMIT ANY STOCK CERTIFICATES WITH THIS PROXY CARD.
 
                 (Continued and to be signed on reverse side.)
 
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<PAGE>   121
 
- --------------------------------------------------------------------------------
 
     PLEASE MARK VOTE IN THE FOLLOWING MANNER USING DARK INK ONLY. [X]
 
    A vote FOR approval and adoption of the below-described Merger and Merger
Agreement is recommended by the Board of Directors.
 
    1. To consider and act upon a proposal to adopt and approve the merger of
       Irvine Apartment Communities, Inc. with and into TIC Acquisition LLC (the
       "Merger") and the Agreement and Plan of Merger dated as of February 1,
       1999, between Irvine Apartment Communities, Inc. and TIC Acquisition LLC
       (the "Merger Agreement"), as more fully described in the accompanying
       Proxy Statement.
 
<TABLE>
                            <S>   <C>       <C>
                            FOR   AGAINST   ABSTAIN
                            [ ]     [ ]       [ ]
</TABLE>
 
   
    2. If the Board of Directors of the Company (or the Special Committee
       thereof) determines that Shareholders have not had sufficient time to
       consider the Merger and the Merger Agreement, to vote upon the
       adjournment or postponement of the Special Meeting for the purpose of
       soliciting additional proxies.
    
 
   
    3. To transact such other business as may properly come before the meeting
       or any adjournment or postponement thereof.
    
 
   
                                         This proxy when properly executed will
                                         be voted in the manner directed herein
                                         by the undersigned Shareholder(s). If
                                         no direction is made, this proxy will
                                         be voted FOR proposals No. 1 and 2
                                         above and will be voted by the proxy
                                         holders listed on the reverse hereof in
                                         their discretion as to any other
                                         matters which may properly come before
                                         the meeting.
    
 
                                                    Dated:                , 1999
                                                          ----------------
                                         Signature(s)
                                                     ---------------------------
                                         ---------------------------------------
                                         Signature of Shareholder(s) -- please
                                         sign name(s) exactly as imprinted (do
                                         not print). Please indicate any change
                                         of address. NOTE: Executors,
                                         administrators, trustees and others
                                         signing in a representative capacity
                                         should indicate the capacity in which
                                         they sign. If shares are held jointly,
                                         EACH holder should sign.
 
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