SIMON PROPERTY GROUP L P /DE/
S-4/A, 1998-11-03
REAL ESTATE INVESTMENT TRUSTS
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<PAGE>   1
 
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 3, 1998
    
 
   
                                                      REGISTRATION NO. 333-63645
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 1
    
 
   
                                       TO
    
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                   UNDER THE
                             SECURITIES ACT OF 1933
                            ------------------------
 
   
                           SIMON PROPERTY GROUP, L.P.
    
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                <C>                                <C>
             DELAWARE                             6798                            34-1755769
 (STATE OR OTHER JURISDICTION OF      (PRIMARY STANDARD INDUSTRIAL             (I.R.S. EMPLOYER
  INCORPORATION OR ORGANIZATION)      CLASSIFICATION CODE NUMBER)            IDENTIFICATION NO.)
</TABLE>
 
                            ------------------------
 
                              NATIONAL CITY CENTER
 
                   115 WEST WASHINGTON STREET, SUITE 15 EAST
                             INDIANAPOLIS, IN 46204
                                 (317) 636-1600
(ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF THE
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                             JAMES M. BARKLEY, ESQ.
 
                                GENERAL COUNSEL
                              NATIONAL CITY CENTER
                   115 WEST WASHINGTON STREET, SUITE 15 EAST
                             INDIANAPOLIS, IN 46204
                                 (317) 636-1600
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
                            ------------------------
 
                                   COPIES TO:
 
                            DUNCAN J. STEWART, ESQ.
                            WILLKIE FARR & GALLAGHER
                               787 SEVENTH AVENUE
                            NEW YORK, NEW YORK 10019
                                 (212) 728-8000
                            ------------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO THE
PUBLIC:  As soon as practicable after the effective date of this Registration
Statement.
 
     If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. [ ]
 
   
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [ ]
    
 
   
     If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
    
                            ------------------------
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THIS REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(a), MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
PROSPECTUS
 
   
                           SIMON PROPERTY GROUP, L.P.
    
     OFFER TO EXCHANGE $1,000 IN PRINCIPAL AMOUNT OF 6 5/8% NOTES DUE 2003,
                6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND
   
         7% MANDATORY PAR PUT REMARKETED SECURITIES(SM) ("MOPPRS(SM)")
    
                                                     [SIMON PROPERTY GROUP LOGO]
DUE 2028 FOR EACH $1,000 IN PRINCIPAL AMOUNT OUTSTANDING OF LIKE SERIES OF NOTES
                            ------------------------
 
   
    Simon Property Group, L.P. (f/k/a Simon DeBartolo Group, L.P.) (the
"Operating Partnership") hereby offers, upon the terms and subject to the
conditions set forth in this Prospectus and the accompanying Letter of
Transmittal (which together constitute the "Exchange Offer"), to exchange an
aggregate of up to $375,000,000 principal amount of 6 5/8% Notes due 2003 (the
"Exchange 2003 Notes"), $300,000,000 principal amount of 6 3/4% Notes due 2005
(the "Exchange 2005 Notes"), $200,000,000 principal amount of 7 3/8% Notes due
2018 (the "Exchange 2018 Notes," and, together with the Exchange 2003 Notes and
the Exchange 2005 Notes, the "Exchange Notes") and $200,000,000 principal amount
of 7% MandatOry Par Put Remarketed Securities(SM) ("MOPPRS(SM)") due 2028 (the
"Exchange MOPPRS," and, together with the Exchange Notes, the "Exchange
Securities") of the Operating Partnership, which have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), for a like principal
amount of 6 5/8% Notes due 2003 (the "Original 2003 Notes"), 6 3/4% Notes due
2005 (the "Original 2005 Notes"), 7 3/8% Notes due 2018 (the "Original 2018
Notes," and, together with the Original 2003 Notes and the Original 2005 Notes,
the "Original Notes") and 7% MOPPRS(SM) due 2028 (the "Original MOPPRS," and,
together with the Original Notes, the "Original Securities"), respectively, of
the Operating Partnership with the holders (the "Holders") thereof. The Original
2003 Notes and the Exchange 2003 Notes are referred to herein as the "2003
Notes," the Original 2005 Notes and the Exchange 2005 Notes are referred to
herein as the "2005 Notes," the Original 2018 Notes and the Exchange 2018 Notes
are referred to herein as the "2018 Notes," the Original MOPPRS and the Exchange
MOPPRS are referred to herein as the "MOPPRS," the Original Notes and the
Exchange Notes are referred to herein as the "Notes," and the Original
Securities and the Exchange Securities are referred to herein as the
"Securities."
    
 
    The terms of the Exchange Securities are identical in all material respects
to the terms of the Original Securities of the same series, except that (i) the
Exchange Securities will be freely transferable by holders thereof (except as
provided below) and (ii) the Exchange Securities will be issued without any
covenant of the Operating Partnership regarding registration. There will be no
cash proceeds to the Operating Partnership from the Exchange Offer.
 
    Interest on the Securities is payable semi-annually on each June 15 and
December 15, commencing December 15, 1998, except that with respect to the
interest payable on the MOPPRS in June 2008, the interest payment date shall be
June 16, 2008. The Securities are redeemable at the option of the Operating
Partnership at a redemption price equal to the sum of (i) the principal amount
of the Securities being redeemed plus accrued interest to the redemption date
and (ii) the Make-Whole Amount (as defined herein), if any, at the times
provided under "Description of Securities -- Optional Redemption." Unless
earlier redeemed, the 2003 Notes will mature on June 15, 2003, the 2005 Notes
will mature on June 15, 2005, the 2018 Notes will mature on June 15, 2018 and
the MOPPRS will mature on June 15, 2028. The Securities will not be subject to
any mandatory sinking fund. See "Description of Securities."
 
    THE MOPPRS ARE SUBJECT TO MANDATORY TENDER ON JUNE 16, 2008 (THE
"REMARKETING DATE").  The annual interest rate on the MOPPRS to the Remarketing
Date is 7%. If Merrill Lynch, Pierce, Fenner & Smith Incorporated, as the
remarketing dealer (the "Remarketing Dealer"), has elected to remarket the
MOPPRS as described herein, the MOPPRS will be subject to mandatory tender to
the Remarketing Dealer at 100% of the principal amount thereof for remarketing
on the Remarketing Date, except in the limited circumstances described herein.
See "Description of the Securities -- Tender of MOPPRS; Remarketing." If the
Remarketing Dealer for any reason does not purchase all tendered MOPPRS on the
Remarketing Date or elects not to remarket the MOPPRS, or in certain other
limited circumstances described herein, the Operating Partnership will be
required to repurchase the MOPPRS from the holders thereof at 100% of the
principal amount thereof plus accrued interest, if any. See "Description of
Securities -- Repurchase of MOPPRS."
 
    The Operating Partnership issued and sold $1.075 billion aggregate principal
amount of Original Securities on June 22, 1998. Such sale was not registered
under the Securities Act in reliance upon the exemptions provided by Section
4(2) and Rule 144A of the Securities Act. Accordingly, the Original Securities
may not be reoffered, resold or otherwise pledged, hypothecated or transferred
in the United States unless so registered or unless an applicable exemption from
the registration requirements of the Securities Act is available. Based on
existing interpretations of the Securities Act by the staff of the Commission
(the "Staff") set forth in several no-action letters to third parties, and
subject to the immediately following sentence, the Operating Partnership
believes that the Exchange Securities to be issued pursuant to the Exchange
Offer may be offered for resale, resold and otherwise transferred by the holders
thereof (other than holders who are broker-dealers) without further compliance
with the registration and prospectus delivery provisions of the Securities Act.
However, any purchaser of Securities who is an affiliate of the Operating
Partnership or who intends to participate in the Exchange Offer for the purpose
of distributing the Exchange Securities, or any broker-dealer who purchased the
Securities from the Operating Partnership for resale pursuant to Rule 144A or
any other available exemption under the Securities Act, (i) will not be able to
rely on the interpretations of the Staff set forth in the above-mentioned
no-action letters, (ii) will not be entitled to tender its Securities in the
Exchange Offer and (iii) must comply with the registration and prospectus
delivery requirements of the Securities Act in connection with any sale or
transfer of the Securities unless such sale or transfer is made pursuant to an
exemption from such requirements. See "The Exchange Offer -- Terms of the
Exchange" and "Plan of Distribution."
 
   
    The Exchange Offer is not conditioned upon any minimum aggregate principal
amount of Original Securities being tendered for exchange. The Exchange Offer
will expire at 5:00 p.m., New York City time, on December 7, 1998, unless
extended (the "Expiration Date"). The date of acceptance for exchange of the
Original Securities (the "Exchange Date") will be the first business day
following the Expiration Date, upon surrender of the Original Securities.
Original Securities tendered pursuant to the Exchange Offer may be withdrawn at
any time prior to the Expiration Date; otherwise such tenders are irrevocable.
This Prospectus, together with the Letter of Transmittal, is being sent to all
registered holders of Original Securities as of October 30, 1998.
    
 
   
     SEE "RISK FACTORS" ON PAGE 9 FOR A DESCRIPTION OF CERTAIN FACTORS THAT
SHOULD BE CONSIDERED BY PARTICIPANTS IN THE EXCHANGE OFFER.
    
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
                            ------------------------
 
   
                The date of this Prospectus is November 3, 1998.
    
"MANDATORY PAR PUT REMARKETED SECURITIES(SM)" AND "MOPPRS(SM)" ARE SERVICE MARKS
                       OWNED BY MERRILL LYNCH & CO., INC.
<PAGE>   3
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents are incorporated by reference in this Prospectus
except as superseded or modified herein or therein:
 
   
          1. Annual Report of SPG Properties, Inc. (f/k/a Simon DeBartolo Group,
     Inc.) ("SPG Properties") on Form 10-K and Form 10-K/A for the year ended
     December 31, 1997;
    
 
   
          2. SPG Properties' Quarterly Reports on Form 10-Q for the quarters
     ended March 31, 1998 and June 30, 1998;
    
 
   
          3. SPG Properties' Current Reports on Form 8-K filed on February 19,
     1998, March 30, 1998, May 27, 1998, June 9, 1998, August 12, 1998, August
     24, 1998 and October 9, 1998;
    
 
   
          4. Proxy Statement dated August 13, 1998 for Special and Annual
     Meeting of Stockholders of SPG Properties held on September 23, 1998;
    
 
   
          5. Current Report on Form 8-K of Simon Property Group, Inc. ("Simon
     Group") filed on October 9, 1998;
    
 
   
          6. The Operating Partnership's Annual Report on Form 10-K and Form
     10-K/A for the year ended December 31, 1997;
    
 
   
          7. The Operating Partnership's Quarterly Reports on Form 10-Q for the
     quarters ended March 31, 1998 and June 30, 1998; and
    
 
   
          8. The Operating Partnership's Current Reports on Form 8-K filed on
     September 18, 1998 (as amended by Form 8-K/A filed on November 2, 1998) and
     October 9, 1998.
    
 
   
     The Exchange Act filing numbers of SPG Properties, Simon Group and the
Operating Partnership are 1-12618, 1-14469 and 333-11491, respectively.
    
 
   
     All documents filed by the Operating Partnership, or SPG Properties or
Simon Group with the Securities and Exchange Commission (the "Commission")
pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to
the date of this Prospectus and prior to the termination of the Exchange Offer
shall be deemed to be incorporated by reference in this Prospectus and to be a
part thereof from the date of filing of such documents. Any statement contained
in a document incorporated or deemed to be incorporated by reference herein or
contained in this Prospectus shall be deemed to be modified or superseded for
purposes of this Prospectus to the extent any statement contained herein or in
any subsequently filed document which is also deemed to be incorporated by
reference herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed to constitute a part hereof except as
so modified or superseded.
    
 
   
     The foregoing documents of SPG Properties and Simon Group filed under the
Exchange Act have been incorporated by reference herein because they contain
information concerning business, properties, operations and management of the
Operating Partnership through which SPG Properties and Simon Group conduct their
operations.
    
 
   
     The Operating Partnership hereby undertakes to provide without charge to
each person to whom a Prospectus is delivered, upon the written or oral request
of such person, a copy of any and all of the information incorporated by
reference in this Prospectus (excluding exhibits to such information). Such
requests should be directed to Simon Property Group, L.P., c/o Simon Property
Group, Inc., National City Center, 115 West Washington Street, Suite 15 East,
Indianapolis, IN 46204, Attention: Investor Relations; telephone (317) 636-1600.
    
 
                             AVAILABLE INFORMATION
 
   
     SPG Properties, Simon Group and the Operating Partnership are subject to
the information requirements of the Securities Exchange Act of 1934 and in
accordance therewith file reports and other information with the Commission.
Such reports and other information can be inspected and copied at the public
reference
    
 
                                        1
<PAGE>   4
 
   
facilities maintained by the Commission at Room 1024, Judiciary Plaza, 450 Fifth
St., N.W., Washington, D.C. 20549, and at the Regional Offices of the Commission
at 7 World Trade Center, 13th Floor, New York, New York 10048 and Citicorp
Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511.
Copies of such material can be obtained by mail from the Public Reference
Section of the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549 at prescribed rates. The Commission maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other materials that are filed through the Commission's Electronic Data
Gathering, Analysis and Retrieval (EDGAR) system. In addition, the Simon Group
Common Stock is listed on the NYSE and Simon Group is required to file reports,
proxy and information statements and other information with the NYSE. These
documents can be inspected at the principal office of the NYSE, 11 Wall Street,
New York, New York 10005.
    
 
                           FORWARD-LOOKING STATEMENTS
 
   
     Certain statements under the captions "Description of Securities" and
appearing elsewhere or incorporated by reference in this Prospectus constitute
"forward-looking statements" within the meaning of the Private Securities
Litigation Reform Act of 1995 (the "Reform Act"). Such forward-looking
statements involve known and unknown risks, uncertainties and other factors
which may cause the actual results, performance or achievements of SPG
Properties, Simon Group, the Operating Partnership or industry results to be
materially different from any future results, performance or achievements
expressed or implied by such forward-looking statements. Such forward-looking
statements include, but are not limited to, the following: general economic and
business conditions, which will, without limitation, affect demand for retail
space or retail goods, availability and creditworthiness of prospective tenants,
lease rents and the availability of financing; adverse changes in the real
estate markets including, without limitation, competition with other companies;
risks of real estate development and acquisition; the continuing ability of SPG
Properties or Simon Group to qualify as real estate investment trusts; adverse
changes in federal income tax law (including the enactment of certain proposals
currently pending in or enacted by Congress); risks relating to year 2000
issues; governmental actions and initiatives; and environmental/safety
requirements.
    
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<S>                                                           <C>
SUMMARY.....................................................    3
RISK FACTORS................................................    9
RATIO OF EARNINGS TO FIXED CHARGES..........................   10
USE OF PROCEEDS.............................................   10
THE EXCHANGE OFFER..........................................   10
DESCRIPTION OF SECURITIES...................................   18
CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS.....   34
STATE AND LOCAL TAX CONSIDERATIONS..........................   37
PLAN OF DISTRIBUTION........................................   38
VALIDITY OF THE EXCHANGE SECURITIES.........................   39
EXPERTS.....................................................   39
</TABLE>
    
 
                                        2
<PAGE>   5
 
                                    SUMMARY
 
   
     The following Summary is qualified in its entirety by, and should be read
in conjunction with, the more detailed information appearing elsewhere in this
Prospectus or incorporated herein by reference. All references to the "Operating
Partnership," "Simon Group" or "SPG Properties" in this Prospectus include the
Operating Partnership, Simon Group or SPG Properties, as the case may be, and
those entities owned or controlled by each and its or their predecessors, unless
the context indicates otherwise. In addition, prior to the Merger (as defined
below under "-- Recent Developments"), references herein to "Simon Group" are to
SPG Properties, Inc. (f/k/a Simon DeBartolo Group, Inc.), the predecessor for
accounting purposes of Simon Group.
    
 
                           THE OPERATING PARTNERSHIP
 
   
     Simon Property Group, L.P. (f/k/a Simon DeBartolo Group, L.P.) (the
"Operating Partnership") is a majority owned subsidiary partnership of Simon
Property Group, Inc., a general partner of the Operating Partnership ("Simon
Group"). Simon Group is a self-administered and self-managed real estate
investment trust ("REIT") under the Internal Revenue Code of 1986, as amended
(the "Code"). The Operating Partnership is engaged primarily in the ownership,
operation, management, leasing, acquisition, expansion and development of real
estate properties, primarily regional malls and community shopping centers. As
of June 30, 1998, the Operating Partnership owned or held an interest in 216
income-producing properties, which consisted of 131 regional malls, 75 community
shopping centers, three specialty retail centers, four mixed-use properties and
three value-oriented super-regional malls located in 34 states (the
"Properties"). As of that same date, the Operating Partnership also owned direct
or indirect interests in one specialty retail center and one value-oriented
super-regional mall under construction, an additional two community centers in
the final stages of preconstruction development and eight parcels of land held
for future development (collectively, "Development Properties," and together
with the Properties, "Portfolio Properties"). The Operating Partnership
self-manages Properties wholly owned, directly or indirectly, by the Operating
Partnership. In addition, the Operating Partnership holds substantially all of
the economic interest in M.S. Management Associates, Inc. (the "Management
Company"), while substantially all of the voting stock is held by Melvin Simon,
Herbert Simon and David Simon. The Management Company manages Properties not
wholly owned by the Operating Partnership and certain other properties, and also
engages in certain property development activities. The Operating Partnership
also holds substantially all of the economic interest in, and the Management
Company holds substantially all of the voting stock of, DeBartolo Properties
Management, Inc. ("DPMI"), which provides architectural, design, construction
and other services to substantially all of the Portfolio Properties, as well as
certain other regional malls and community shopping centers owned by third
parties. At June 30, 1998, Simon Group's ownership interest in the Operating
Partnership was 63.9% and the Simons (which term means Melvin Simon, Herbert
Simon, David Simon, certain of their affiliates and includes certain other Simon
family members and estates, trusts and other entities established for their
benefit) and certain third parties (collectively, "Limited Partners") held the
remaining interests in the Operating Partnership not held directly or indirectly
by Simon Group.
    
 
   
                              RECENT DEVELOPMENTS
    
 
   
     On September 23, 1998, the stockholders of each of SPG Properties, Inc.
(f/k/a Simon DeBartolo Group, Inc.) ("SPG Properties"), Corporate Property
Investors, Inc. ("CPI") and Corporate Realty Consultants, Inc. ("CRC"), voted
to, among other things, approve and adopt the Agreement and Plan of Merger,
dated as of February 18, 1998 (the "Merger Agreement"), by and among SPG
Properties, CPI and CRC. On September 24, 1998, SPG Merger Sub, Inc., a
substantially wholly owned subsidiary of CPI, merged (the "Merger") with and
into SPG Properties with SPG Properties continuing as the surviving company. As
a result of the Merger and related transactions, SPG Properties became a
subsidiary of CPI, and all of CPI's assets (other than Ocean County Mall and
certain net leases) were contributed to a subsidiary of the Operating
Partnership in return for 47,790,550 units of ownership interest in the
Operating Partnership. Prior to the Merger, the board of directors of CPI
declared a dividend on each share of CPI common stock consisting of (i) $90 in
cash, (ii) 1.0818 additional shares of CPI common stock and (iii) 0.19 shares of
6.50%
    
 
                                        3
<PAGE>   6
 
   
Series B Convertible Preferred Stock of CPI. The dividends and the transactions
contemplated by the Merger Agreement were financed by general working capital, a
senior unsecured term loan from The Chase Manhattan Bank and Chase Securities
Inc., proceeds from the sale of the General Motors Building, and borrowings
under other existing credit facilities.
    
 
   
     In connection with the Merger, CPI was renamed "Simon Property Group,
Inc.," CRC was renamed "SPG Realty Consultants, Inc.," Simon DeBartolo Group,
Inc. was renamed "SPG Properties, Inc.," the Operating Partnership was renamed
"Simon Property Group, L.P.," and each issued and outstanding share of SPG
Properties common stock was converted into one share of Simon Property Group,
Inc. common stock and a beneficial interest in 1/100th of a share of SPG Realty
Consultants, Inc. common stock. Each series of Simon DeBartolo Group, Inc.
preferred stock was renamed as a series of preferred stock of SPG Properties,
Inc.
    
 
                               THE EXCHANGE OFFER
 
   
The Exchange Offer............   The Operating Partnership is offering to
                                 exchange (the "Exchange Offer") an aggregate of
                                 up to $375,000,000 principal amount of 6 5/8%
                                 Notes due 2003 (the "Exchange 2003 Notes"),
                                 $300,000,000 principal amount of 6 3/4% Notes
                                 due 2005 (the "Exchange 2005 Notes"),
                                 $200,000,000 principal amount of 7 3/8% Notes
                                 due 2018 (the "Exchange 2018 Notes," and,
                                 together with the Exchange 2003 Notes and the
                                 Exchange 2005 Notes, the "Exchange Notes") and
                                 $200,000,000 principal amount of 7% Mandatory
                                 Par Put Remarketed Securities(SM)
                                 ("MOPPRS(SM)") due 2028 (the "Exchange MOPPRS,"
                                 and, together with the Exchange Notes, the
                                 "Exchange Securities") of the Operating
                                 Partnership, which have been registered under
                                 the Securities Act, for a like principal amount
                                 of 6 5/8% Notes due 2003 (the "Original 2003
                                 Notes"), 6 3/4% Notes due 2005 (the "Original
                                 2005 Notes"), 7 3/8% Notes due 2018 (the
                                 "Original 2018 Notes," and, together with the
                                 Original 2003 Notes and the Original 2005
                                 Notes, the "Original Notes") and 7% MOPPRS(SM)
                                 due 2028 (the "Original MOPPRS," and, together
                                 with the Original Notes, the "Original
                                 Securities"), respectively, of the Operating
                                 Partnership. The terms of the Exchange
                                 Securities are identical in all material
                                 respects to the terms of the Original
                                 Securities of the same series, except that (i)
                                 the Exchange Securities will be freely
                                 transferable by holders thereof except as
                                 provided herein (see "The Exchange Offer --
                                 Terms of the Exchange" and "-- Terms and
                                 Conditions of the Letter of Transmittal") and
                                 (ii) the Exchange Securities will be issued
                                 without any covenant regarding registration
                                 under the Securities Act.
    
 
                                 Exchange Securities issued pursuant to the
                                 Exchange Offer in exchange for the Original
                                 Securities may be offered for resale, resold
                                 and otherwise transferred by holders thereof
                                 (other than any holder which is (i) an
                                 "affiliate" of the Operating Partnership within
                                 the meaning of Rule 405 under the Securities
                                 Act, (ii) a broker-dealer who acquired Original
                                 Securities directly from the Issuer or (iii)
                                 broker-dealers who acquired Original Securities
                                 as a result of market making or other trading
                                 activities) without compliance with the
                                 registration and prospectus delivery provisions
                                 of the Securities Act, provided that such
                                 Exchange Securities are acquired in the
                                 ordinary course of such holders' business and
                                 such
 
                                        4
<PAGE>   7
 
                                 holders are not engaged in, and do not intend
                                 to engage in, and have no arrangement or
                                 understanding with any person to participate
                                 in, a distribution of such Exchange Securities.
 
Minimum Condition.............   The Exchange Offer is not conditioned upon any
                                 minimum aggregate principal amount of Original
                                 Securities being tendered for exchange.
 
   
Expiration Date...............   The Exchange Offer will expire at 5:00 p.m.,
                                 New York City time, on December 7, 1998 unless
                                 extended (the "Expiration Date").
    
 
Exchange Date.................   The first date of acceptance for exchange for
                                 the Original Securities will be the first
                                 business day following the Expiration Date.
 
Conditions to the Exchange
Offer.........................   The obligation of the Operating Partnership to
                                 consummate the Exchange Offer is subject to
                                 certain conditions. See "The Exchange
                                 Offer -- Conditions to the Exchange Offer." The
                                 Operating Partnership reserves the right to
                                 terminate or amend the Exchange Offer at any
                                 time prior to the Expiration Date upon the
                                 occurrence of any such condition.
 
Withdrawal Rights.............   Tenders may be withdrawn at any time prior to
                                 the Expiration Date. Any Original Securities
                                 not accepted for any reason will be returned
                                 without expense to the tendering holders
                                 thereof as promptly as practicable after the
                                 expiration or termination of the Exchange
                                 Offer.
 
Procedures for Tendering
Original Securities...........   See "The Exchange Offer -- How to Tender."
 
Federal Income Tax
Consequences..................   The exchange of Original Securities for
                                 Exchange Securities by holders will not be a
                                 taxable exchange for federal income tax
                                 purposes, and as a result holders will not
                                 recognize any taxable gain or loss or any
                                 interest income as a result of such exchange.
 
Effect on Holders of Original
  Securities..................   As a result of the making of this Exchange
                                 Offer, and upon acceptance for exchange of all
                                 validly tendered Original Securities pursuant
                                 to the terms of this Exchange Offer, the
                                 Operating Partnership will have fulfilled a
                                 covenant contained in the terms of the Original
                                 Securities and the Registration Rights
                                 Agreement (the "Registration Rights
                                 Agreement"), dated as of June 22, 1998, among
                                 the Operating Partnership and the initial
                                 purchasers of the Original Securities (the
                                 "Initial Purchasers") and, accordingly, the
                                 holders of the Original Securities will have no
                                 further registration or other rights under the
                                 Registration Rights Agreement, except under
                                 certain limited circumstances. See "Description
                                 of Securities -- Registration Rights." Holders
                                 of the Original Securities who do not tender
                                 their Original Securities in the Exchange Offer
                                 will continue to hold such Original Securities
                                 and will be entitled to all the rights and
                                 limitations applicable thereto under the
                                 indenture, dated as of November 26, 1996,
                                 between the Operating Partnership and The Chase
                                 Manhattan Bank, as Trustee (the "Trustee"), as
                                 supplemented by an Indenture Supplement dated
                                 as of June 22, 1998 relating to the Original
                                 Securities and the Exchange Securities
                                 (together, the "Indenture"). All untendered,
                                 and tendered but unaccepted, Original
                                 Securities will continue to
                                        5
<PAGE>   8
 
                                 be subject to the restrictions on transfer
                                 provided for in such Original Securities and
                                 the Indenture. To the extent that Original
                                 Securities are tendered and accepted in the
                                 Exchange Offer, the trading market, if any, for
                                 the Original Securities could be adversely
                                 affected. See "Risk Factors -- Consequences of
                                 Failure to Exchange."
 
Exchange Agent................   The Chase Manhattan Bank, the Trustee under the
                                 Indenture, is serving as exchange agent (the
                                 "Exchange Agent") in connection with the
                                 Exchange Offer. The address of the Exchange
                                 Agent is: 55 Water Street, Room 234, North
                                 Building, New York, NY 10041, Attention: Carlos
                                 Esteves. For information with respect to the
                                 Exchange Offer, the telephone number for the
                                 Exchange Agent is (212) 638-0828 and the
                                 facsimile number for the Exchange Agent is
                                 (212) 638-7375 or (212) 344-9367.
 
                            TERMS OF THE SECURITIES
 
     The Exchange Offer applies to each series of Original Securities. The form
and terms of the Exchange Securities are the same as the form and terms of the
Original Securities of the same series for which they may be exchanged except
that the Exchange Securities have been registered under the Securities Act and,
therefore, will not bear legends restricting the transfer thereof. The Exchange
Securities will evidence the same debt as the Original Securities of the same
series and will be entitled to the benefits of the Indenture. The following
summary of the terms of the Securities does not purport to be complete and is
qualified in its entirety by reference to the detailed information appearing
elsewhere herein, including under the heading "Description of Securities."
 
   
Issuer........................   Simon Property Group, L.P. The principal
                                 executive office of the Operating Partnership
                                 is located at National City Center, 115 West
                                 Washington Street, Suite 15 East, Indianapolis,
                                 IN 46204, and its telephone number at that
                                 address is (317) 636-1600.
    
 
Maturity......................   Unless, in each case, redeemed prior to
                                 maturity as described below, the 2003 Notes
                                 will mature on June 15, 2003, the 2005 Notes
                                 will mature on June 15, 2005, the 2018 Notes
                                 will mature on June 15, 2018 and the MOPPRS
                                 will mature on June 15, 2028 (the "Stated
                                 Maturity Date").
 
Optional Redemption...........   The Notes are redeemable at any time at the
                                 option of the Operating Partnership, in whole
                                 or in part, at a redemption price equal to the
                                 sum of (i) the principal amount of the Notes
                                 being redeemed plus accrued interest to the
                                 redemption date and (ii) the Make-Whole Amount,
                                 if any. See "Description of Securities --
                                 Optional Redemption." The MOPPRS will be
                                 redeemable at the option of the Operating
                                 Partnership, (x) prior to the Remarketing Date
                                 with the consent of the Remarketing Dealer and
                                 (y) if the Remarketing Dealer remarkets the
                                 MOPPRS, after the Remarketing Date, in either
                                 case, in whole or in part, at a redemption
                                 price equal to the sum of (i) the principal
                                 amount of the MOPPRS being redeemed plus
                                 accrued interest to the redemption date and
                                 (ii) the Make-Whole Amount, if any. The MOPPRS
                                 are subject to redemption from the Remarketing
                                 Dealer, in whole but not in part, at the option
                                 of the Operating Partnership on the Remarketing
                                 Date at the MOPPRS Optional Redemption Price.
                                 The MOPPRS are not otherwise subject to
                                 redemption by the Operat-
 
                                        6
<PAGE>   9
 
                                 ing Partnership prior to the Remarketing Date.
                                 See "Description of Securities -- Tender of
                                 MOPPRS; Remarketing."
 
Mandatory Tender of MOPPRS;
  Remarketing and
  Repurchase..................   Provided that the Remarketing Dealer gives
                                 notice to the Operating Partnership and the
                                 Trustee on a Business Day not later than five
                                 Business Days prior to the Remarketing Date of
                                 its intention to purchase MOPPRS for
                                 remarketing, each MOPPRS will be automatically
                                 tendered, or deemed tendered, to the
                                 Remarketing Dealer for purchase on the
                                 Remarketing Date, except in the circumstances
                                 described under "Description of the
                                 Securities -- Repurchase of the MOPPRS" or
                                 "-- Redemption of the MOPPRS."
 
                                 The purchase price to be paid by the
                                 Remarketing Dealer for the tendered MOPPRS will
                                 be equal to 100% of the principal amount
                                 thereof. When the MOPPRS are tendered for
                                 remarketing, the Remarketing Dealer may
                                 remarket the MOPPRS for its own account at
                                 varying prices to be determined by the
                                 Remarketing Dealer at the time of each sale. If
                                 the Remarketing Dealer for any reason does not
                                 purchase all tendered MOPPRS on the Remarketing
                                 Date or elects not to remarket the MOPPRS, or
                                 in certain other limited circumstances
                                 described herein, the Operating Partnership
                                 will be required to repurchase the MOPPRS from
                                 the holders thereof at a price equal to 100% of
                                 the principal amount thereof plus all accrued
                                 and unpaid interest, if any, on the MOPPRS to
                                 the Remarketing Date. See "Description of the
                                 Securities -- Repurchase of the MOPPRS."
 
Interest Payment Dates........   Interest on the Securities is payable
                                 semi-annually in arrears on June 15 and
                                 December 15, commencing December 15, 1998
                                 ("Interest Payment Dates"); provided that, for
                                 the MOPPRS, the Interest Payment Date occurring
                                 in June 2008 shall be June 16, 2008.
 
Ranking.......................   The Securities will rank pari passu with each
                                 other and with all other unsecured and
                                 unsubordinated indebtedness of the Operating
                                 Partnership except that the Securities will be
                                 effectively subordinated to (i) the prior
                                 claims of each secured mortgage lender to any
                                 specific assets which secure such lender's
                                 mortgage and (ii) any claims of creditors of
                                 subsidiaries of the Operating Partnership to
                                 the extent of the assets of such subsidiaries.
 
Limitations on Incurrence of
Debt..........................   The Securities contain various covenants,
                                 including the following:
 
                                 (1) The Operating Partnership will not incur
                                     any Debt if, after giving effect thereto,
                                     the aggregate principal amount of all
                                     outstanding Debt is greater than 60% of the
                                     sum of (i) the Operating Partnership's
                                     Adjusted Total Assets as of the end of the
                                     most recent fiscal quarter and (ii) any
                                     increase in Adjusted Total Assets from the
                                     end of such quarter, including any pro
                                     forma increase resulting from the
                                     application of proceeds of such additional
                                     Debt.
 
                                 (2) The Operating Partnership will not incur
                                     any Secured Debt if, after giving effect
                                     thereto, the aggregate principal amount of
 
                                        7
<PAGE>   10
 
                                     all outstanding Secured Debt is greater
                                     than 55% of the sum of (i) the Operating
                                     Partnership's Adjusted Total Assets as of
                                     the end of the fiscal quarter prior to the
                                     incurrence of such additional Secured Debt
                                     and (ii) any increase in Adjusted Total
                                     Assets from the end of such quarter,
                                     including any pro forma increase resulting
                                     from the application of proceeds of such
                                     additional Secured Debt.
 
                                 (3) The Operating Partnership will not incur
                                     any Debt if the ratio of EBITDA After
                                     Minority Interest to Interest Expense for
                                     the four consecutive fiscal quarters most
                                     recently ended prior to the incurrence of
                                     such Debt, on a pro forma basis, is less
                                     than 1.75 to 1.
 
                                 (4) The Operating Partnership is required to
                                     maintain Unencumbered Assets of not less
                                     than 150% of the aggregate outstanding
                                     principal amount of Unsecured Debt.
 
                                 For definitions of the capitalized terms used
                                 in the foregoing description of covenants, see
                                 "Description of Securities -- Certain
                                 Covenants."
 
                                        8
<PAGE>   11
 
                                  RISK FACTORS
 
CONSEQUENCES OF FAILURE TO EXCHANGE
 
     Issuance of the Exchange Securities in exchange for the Original Securities
pursuant to the Exchange Offer will be made only after timely receipt by the
Operating Partnership of such Original Securities, a properly completed and duly
executed Letter of Transmittal or an Agent's Message and all other required
documents. Therefore, holders of Original Securities desiring to tender such
Original Securities in exchange for Exchange Securities should allow sufficient
time to ensure timely delivery. The Operating Partnership is under no duty to
give notification of defects or irregularities with respect to the tenders of
Original Securities for exchange. Original Securities that are not tendered or
that are tendered but not accepted pursuant to the Exchange Offer will continue
to be subject to the restrictions on transfer of such Original Securities as set
forth in the legend thereon and, upon consummation of the Exchange Offer,
certain registration rights under the Registration Rights Agreement will
terminate. In general, the Original Securities may not be offered or sold unless
registered under the Securities Act and applicable state securities laws or
pursuant to an exemption therefrom. Except under certain limited circumstances,
the Operating Partnership does not intend to register the Original Securities
under the Securities Act. In addition, any holder of Original Securities who
tenders in the Exchange Offer for the purpose of participating in a distribution
of Exchange Securities may be deemed to have received restricted securities and,
if so, will be required to comply with the registration and prospectus delivery
requirements of the Securities Act in connection with any resale transaction.
Each Participating Broker-Dealer that receives Exchange Securities for its own
account in exchange for Original Securities, where such Original Securities were
acquired by such Participating Broker-Dealer as a result of market-making
activities or any other trading activities, must acknowledge that it will
deliver a prospectus in connection with any resale of such Exchange Securities.
See "Plan of Distribution." To the extent Original Securities are tendered and
accepted in the Exchange Offer, the trading market, if any, for the Original
Securities not tendered and the price at which they may be sold, could be
adversely affected. See "The Exchange Offer."
 
ABSENCE OF A PUBLIC MARKET COULD ADVERSELY AFFECT THE VALUE OF THE EXCHANGE
SECURITIES
 
   
     The Exchange Securities are new securities for which there is currently no
market. The Operating Partnership does not intend to apply for listing of the
Exchange Securities on any securities exchange or for the inclusion of the
Exchange Securities in any automated quotation system. Although the Initial
Purchasers may, following completion of the Exchange Offer, make a market in the
Exchange Securities, they are not obligated to do so and any such market making
activities may be discontinued at any time without notice. Accordingly, there
can be no assurance as to the development or liquidity of any market for the
Exchange Securities. If a trading market does not develop or is not maintained,
holders of the Exchange Securities may experience difficulty in reselling the
Exchange Securities or may be unable to sell them at all. If a market for the
Exchange Securities were to develop, the Exchange Securities could trade at
prices that may be higher or lower than their initial offering price depending
upon many factors, including, among other things, prevailing interest rates, the
Operating Partnership's operating results and the markets for similar
securities.
    
 
                                        9
<PAGE>   12
 
                       RATIO OF EARNINGS TO FIXED CHARGES
 
     The following table sets forth the historical consolidated ratio of
earnings to fixed charges of the Operating Partnership and its predecessors for
the periods indicated.
 
<TABLE>
<CAPTION>
SIX MONTHS ENDED
    JUNE 30,               YEAR ENDED DECEMBER 31,
- -----------------   -------------------------------------
 1998      1997     1997    1996    1995    1994    1993
- -------   -------   -----   -----   -----   -----   -----
<S>       <C>       <C>     <C>     <C>     <C>     <C>
 1.44x     1.71x    1.68x   1.64x   1.67x   1.43x   3.36x(1)
</TABLE>
 
- ---------------
   
(1) Prior to the commencement of business by the Operating Partnership, in
    December 1993, the predecessor of the Operating Partnership maintained a
    different ownership and equity structure. The operating properties of the
    predecessor of the Operating Partnership historically generated positive net
    cash flow. The financial statements of the predecessor of the Operating
    Partnership show net income for the period January 1, 1993 through December
    19, 1993. The ratio of earnings to fixed charges for the period January 1,
    1993 through December 19, 1993 was 1.11x.
    
 
     For purposes of computing the ratio of earnings to fixed charges, earnings
have been calculated by adding fixed charges, excluding capitalized interest, to
income (loss) from continuing operations including income from minority
interests which have fixed charges, and including distributed operating income
from unconsolidated joint ventures instead of income from unconsolidated joint
ventures. Fixed charges consist of interest costs, whether expensed or
capitalized, the interest component of rental expense and amortization of debt
issuance costs.
 
                                USE OF PROCEEDS
 
     There will be no proceeds to the Operating Partnership from the exchange
pursuant to the Exchange Offer. The net proceeds from the issuance of the
Original Securities were approximately $1,070.4 billion. The Operating
Partnership used such proceeds to repay amounts outstanding under certain credit
facilities and for general corporate purposes.
 
                               THE EXCHANGE OFFER
 
PURPOSE OF THE EXCHANGE OFFER
 
     The Operating Partnership issued and sold $1.075 billion aggregate
principal amount of Original Securities on June 22, 1998 (the "Closing Date").
Such sale was not registered under the Securities Act in reliance upon the
exemptions provided by Section 4(2) and Rule 144A of the Securities Act. In
connection with the sale of the Original Securities, the Operating Partnership
agreed to use its reasonable efforts to file with the Commission a registration
statement relating to an exchange offer (the "Exchange Offer Registration
Statement") pursuant to which additional series of each issue of Original
Securities of the Operating Partnership, the Exchange Securities, covered by
such registration statement and containing substantially the same terms as the
same series of Original Securities, except as set forth in this Prospectus,
would be offered in exchange for such Original Securities tendered at the option
of the holders thereof. If (i) because of any change in law or in currently
prevailing interpretations of the Staff, the Operating Partnership is not
permitted to effect the Exchange Offer, (ii) the Exchange Offer is not
consummated within 180 days of the Closing Date, or (iii) in the case of any
holder that participates in the Exchange Offer, such holder does not receive
Exchange Securities on the date of the exchange that may be sold without
restriction under state and federal securities laws (other than due solely to
the status of such holder as an affiliate of the Operating Partnership within
the meaning of the Securities Act or as a broker-dealer), then in each case, the
Operating Partnership will (x) promptly deliver to the holders written notice
thereof and (y) at the Operating Partnership's sole expense (a) as promptly as
practicable (but in no event more than 60 days after so required or requested
pursuant to the Registration Rights Agreement), file a shelf registration
statement covering resales of the Original Securities (the "Shelf Registration
Statement"), (b) use its reasonable best efforts to cause the Shelf
 
                                       10
<PAGE>   13
 
Registration Statement to be declared effective under the Securities Act and (c)
use its reasonable best efforts to keep effective the Shelf Registration
Statement until the earlier of two years (or, if Rule 144(k) is amended to
provide a shorter restrictive period, the end of such shorter period) after the
Closing Date or such time as all of the applicable Securities have been sold
thereunder. In the event that (i) the Operating Partnership has failed to file
the Exchange Offer Registration Statement or, if applicable, the Shelf
Registration Statement, (ii) the Exchange Offer Registration Statement, or, if
applicable, the Shelf Registration Statement, has not been declared effective by
the Commission, or (iii) the Exchange Offer has not been consummated or the
Exchange Offer Registration Statement or the Shelf Registration Statement ceases
to remain effective, in each case within specified time periods, the interest
rate borne by the Original Securities will be increased. See "Description of
Securities -- Registration Rights."
 
     The sole purpose of the Exchange Offer is to fulfill the obligations of the
Operating Partnership under the Registration Rights Agreements.
 
TERMS OF THE EXCHANGE
 
     The Operating Partnership hereby offers to exchange, upon the terms and
subject to the conditions set forth herein and in the Letter of Transmittal
accompanying this Prospectus (the "Letter of Transmittal"), $1,000 in principal
amount of Exchange Securities for each $1,000 in principal amount of Original
Securities of the same series. The terms of the Exchange Securities are
identical in all material respects to the terms of the Original Securities of
the same series, except that the Exchange Securities will generally be freely
transferable by holders thereof, and the holders of the Exchange Securities (as
well as remaining holders of any Original Securities) will not be entitled to
registration rights under the Registration Rights Agreement. See "Description of
Securities -- Registration Rights." The Exchange Securities will evidence the
same debt as the Original Securities of the same series and will be entitled to
the benefits of the Indenture. See "Description of Securities."
 
     The Exchange Offer is not conditioned upon any minimum aggregate principal
amount of Original Securities being tendered for exchange.
 
     Based on existing interpretations of the Securities Act by the staff of the
Commission (the "Staff") set forth in several no-action letters to third
parties, and subject to the immediately following sentence, the Operating
Partnership believes that the Exchange Securities to be issued pursuant to the
Exchange Offer may be offered for resale, resold and otherwise transferred by
the holders thereof (other than holders who are broker-dealers) without further
compliance with the registration and prospectus delivery provisions of the
Securities Act. However, any purchaser of Securities who is an affiliate of the
Operating Partnership or who intends to participate in the Exchange Offer for
the purpose of distributing the Exchange Securities, or any broker-dealer who
purchased the Securities from the Operating Partnership for resale pursuant to
Rule 144A or any other available exemption under the Securities Act, (i) will
not be able to rely on the interpretations of the Staff set forth in the
above-mentioned no-action letters, (ii) will not be entitled to tender its
Securities in the Exchange Offer and (iii) must comply with the registration and
prospectus delivery requirements of the Securities Act in connection with any
sale or transfer of the Securities unless such sale or transfer is made pursuant
to an exemption from such requirements. See "Plan of Distribution."
 
     Each holder of Original Securities (other than certain specified holders)
who wishes to exchange Original Securities for Exchange Securities in the
Exchange Offer will be required to represent that (i) it is not an affiliate of
the Operating Partnership, (ii) the Exchange Securities to be received by it
were acquired in the ordinary course of its business and (iii) at the time of
the Exchange Offer, it has no arrangement with any person to participate in the
distribution (within the meaning of the Securities Act) of the Exchange
Securities. In addition, in connection with any resales of Exchange Securities,
any broker-dealer who acquired the Security for its own account as a result of
market-making or other trading activities (a "Participating Broker-Dealer") must
deliver a prospectus meeting the requirements of the Securities Act. The
Commission has taken the position that Participating Broker-Dealers may fulfill
their prospectus delivery requirements with respect to the Exchange Securities
(other than a resale of an unsold allotment from the original sale of the
Securities) with the prospectus contained in the Exchange Offer Registration
Statement. Under the
 
                                       11
<PAGE>   14
 
Registration Rights Agreement, the Operating Partnership is required to allow
Participating Broker-Dealers and other persons, if any, subject to similar
prospectus delivery requirements to use the prospectus contained in the Exchange
Offer Registration Statement in connection with the resale of such Exchange
Securities for a period of 180 days from the issuance of the Exchange
Securities.
 
     Tendering holders of Original Securities will not be required to pay
brokerage commissions or fees or, subject to the instructions in the Letter of
Transmittal, transfer taxes with respect to the exchange of the Original
Securities pursuant to the Exchange Offer.
 
     The Exchange Securities will bear interest from and including their
respective dates of issuance. Interest on Original Securities that are accepted
for exchange will accrue to, but not including, the date of issuance of the
Exchange Securities, such interest to be payable with the first interest payment
on the Exchange Securities to holders of record 15 calendar days prior to such
interest payment date. See "Description of Securities-Principal and Interest."
 
EXPIRATION DATE; EXTENSIONS; TERMINATION; AMENDMENTS
 
   
     The Exchange Offer expires on the Expiration Date. The term "Expiration
Date" means 5:00 p.m., New York City time, on December 7, 1998, unless the
Operating Partnership in its sole discretion extends the period during which the
Exchange Offer is open, in which event the term "Expiration Date" means the
latest time and date on which the Exchange Offer, as so extended by the
Operating Partnership, expires. The Operating Partnership reserves the right to
extend the Exchange Offer at any time and from time to time prior to the
Expiration Date by giving written notice to the Exchange Agent, and by timely
public announcement communicated, unless otherwise required by applicable law or
regulation, by making a release to the Dow Jones News Service. During any
extension of the Exchange Offer, all Original Securities previously tendered
pursuant to the Exchange Offer will remain subject to the Exchange Offer.
    
 
     The initial Exchange Date will be the first business day following the
Expiration Date. The Operating Partnership expressly reserves the right to (i)
terminate the Exchange Offer and not accept for exchange any Original Securities
for any reason, including if any of the events set forth below under
"-- Conditions to the Exchange Offer" shall have occurred and shall not have
been waived by the Operating Partnership and (ii) amend the terms of the
Exchange Offer in any manner, whether before or after any tender of the Original
Securities. If any such termination or amendment occurs, the Operating
Partnership will notify the Exchange Agent in writing and will either issue a
press release or give written notice to the holders of the Original Securities
as promptly as practicable. Unless the Operating Partnership terminates the
Exchange Offer prior to 5:00 p.m., New York City time, on the Expiration Date,
the Operating Partnership will exchange the Exchange Securities for the Original
Securities as promptly as practicable after the Expiration Date.
 
     If the Operating Partnership waives any material condition to the Exchange
Offer, or amends the Exchange Offer in any other material respect, and if at the
time that notice of such waiver or amendment is first published, sent or given
to holders of Original Securities in the manner specified above, the Exchange
Offer is scheduled to expire at any time earlier than the expiration of a period
ending on the fifth business day from, and including, the date that such notice
is first so published, sent or given, then the Exchange Offer will be extended
until the expiration of such period of five business days.
 
   
     This Prospectus and the related Letter of Transmittal and other relevant
materials will be mailed by the Operating Partnership to record holders of
Original Securities as of October 30, 1998 and will be furnished to brokers,
banks and similar persons whose names, or the names of whose nominees, appear on
the lists of holders for subsequent transmittal to beneficial owners of Original
Securities.
    
 
HOW TO TENDER
 
     The tender to the Operating Partnership of Original Securities by a holder
thereof pursuant to one of the procedures set forth below will constitute an
agreement between such holder and the Operating Partnership in accordance with
the terms and subject to the conditions set forth herein and in the Letter of
Transmittal.
 
                                       12
<PAGE>   15
 
     General Procedures.  A holder of an Original Security may tender the same
by (i) properly completing and signing the Letter of Transmittal or a facsimile
thereof (all references in this Prospectus to the Letter of Transmittal shall be
deemed to include a facsimile thereof) and delivering the same, together with
the certificate or certificates representing the Original Securities being
tendered and any required signature guarantees (or a timely confirmation of a
book-entry transfer (a "Book-Entry Confirmation") pursuant to the procedure
described below), to the Exchange Agent at its address set forth on the back
cover of this Prospectus on or prior to the Expiration Date or (ii) complying
with the guaranteed delivery procedures described below.
 
     Any financial institution that is a participant in DTC's book-entry
transfer system may make book-entry delivery of the Original Securities by
causing DTC to transfer such Original Securities into the Exchange Agent's
account and to deliver an Agent's Message on or prior to the Expiration Date in
accordance with DTC's procedures for such transfer and delivery. If delivery of
Original Securities is effected through book-entry transfer into the Exchange
Agent's account at DTC and an Agent's Message is not delivered, the Letter of
Transmittal (or facsimile thereof), with any required signature guarantees and
any other required documents must be transmitted to and received or confirmed by
the Exchange Agent at its address set forth on the back cover of this Prospectus
prior to 5:00 p.m., New York City time, on the Expiration Date. DELIVERY OF
DOCUMENTS TO DTC IN ACCORDANCE WITH ITS PROCEDURES DOES NOT CONSTITUTE DELIVERY
TO THE EXCHANGE AGENT.
 
     The term "Agent's Message" means a message, transmitted by DTC to and
received by the Exchange Agent and forming a part of a confirmation of the
book-entry tender of a participant's Original Securities into the Exchange
Agent's account at DTC, which acknowledgment states that such participant has
received and agrees to be bound by, and makes the representations and warranties
contained in, the Letter of Transmittal and the Operating Partnership may
enforce the Letter of Transmittal against such participant.
 
     THE METHOD OF DELIVERY OF ORIGINAL SECURITIES AND ALL OTHER DOCUMENTS IS AT
THE ELECTION AND RISK OF THE HOLDER. IF SENT BY MAIL, IT IS RECOMMENDED THAT
REGISTERED MAIL, RETURN RECEIPT REQUESTED, BE USED, PROPER INSURANCE BE
OBTAINED, AND THE MAILING BE MADE SUFFICIENTLY IN ADVANCE OF THE EXPIRATION DATE
TO PERMIT DELIVERY TO THE EXCHANGE AGENT ON OR BEFORE THE EXPIRATION DATE.
 
     Only a holder of Original Securities may tender such Original Securities in
the Exchange Offer. The term "holder" with respect to the Exchange Offer means
any person in whose name Original Securities are registered on the books of the
Trustee or any other person who has obtained a properly completed bond power
from the registered holder, or any person whose Original Securities are held of
record by DTC who desires to deliver such Original Securities by book-entry
transfer at DTC.
 
     Any beneficial owner whose Original Securities are registered in the name
of a broker, dealer, commercial bank, trust company or other nominee and who
wishes to tender Original Securities should contact such holder promptly and
instruct such holder to tender Original Securities on such beneficial owner's
behalf. If such beneficial owner wishes to tender such Original Securities
himself, such beneficial owner must, prior to completing and executing the
Letter of Transmittal and delivering such Original Securities, either make
appropriate arrangements to register ownership of the Original Securities in
such beneficial owner's name or follow the procedures described in the
immediately preceding paragraph. The transfer of record ownership may take
considerable time.
 
     If tendered Original Securities are registered in the name of the signer of
the Letter of Transmittal and the Exchange Securities to be issued in exchange
therefor are to be issued (and any untendered Original Securities are to be
reissued) in the name of the registered holder, the signature of such signer
need not be guaranteed. In any other case, the tendered Original Securities must
be endorsed or accompanied by written instruments of transfer in form
satisfactory to the Operating Partnership and duly executed by the registered
holder and the signature on the endorsement or instrument of transfer must be
guaranteed by a firm (an "Eligible Institution") that is a member of a
recognized signature guarantee medallion program (an "Eligible Program") within
the meaning of Rule 17Ad-15 under the Exchange Act. If the Exchange Securities
and/or Original Securities not exchanged are to be delivered to an address other
than that of the registered holder
 
                                       13
<PAGE>   16
 
appearing on the note register for the Original Securities, the signature on the
Letter of Transmittal must be guaranteed by an Eligible Institution.
 
     Book-Entry Transfer.  The Exchange Agent will make a request to establish
an account with respect to the Original Securities at The Depository Trust
Company ("DTC") for purposes of the Exchange Offer within two business days
after receipt of this Prospectus, and any financial institution that is a
participant in DTC's systems may make book-entry delivery of Original Securities
by causing DTC to transfer such Original Securities into the Exchange Agent's
account at DTC in accordance with DTC's procedures for transfer. However,
although delivery of Original Securities may be effected through book-entry
transfer at DTC, the Letter of Transmittal (or facsimile thereof or an Agent's
Message in lieu thereof), with any required signature guarantees and any other
required documents, must, in any case, be transmitted to and received by the
Exchange Agent at the address specified on the back cover page of this
Prospectus on or prior to the Expiration Date or the guaranteed delivery
procedures described below must be complied with.
 
   
     Guaranteed Delivery Procedures.  If a holder desires to tender Original
Securities pursuant to the Exchange Offer and (i) certificates representing such
Original Securities are not lost but are not immediately available, (ii) time
will not permit the Letter of Transmittal, certificates representing such
holder's Original Securities and all other required documents to reach the
Exchange Agent prior to the Expiration Date or (iii) the procedures for
book-entry transfer cannot be completed prior to the Expiration Date, a tender
may be effected if the Exchange Agent has received at its office listed on the
back cover hereof on or prior to the Expiration Date a letter or facsimile
transmission from an Eligible Institution setting forth the name and address of
the tendering holder, the names in which the Original Securities are registered
and, if possible, the certificate numbers and series of the Original Securities
to be tendered, and stating that the tender is being made thereby and
guaranteeing that within three New York Stock Exchange trading days after the
date of execution of such letter or facsimile transmission by the Eligible
Institution, the Original Securities, in proper form for transfer, will be
delivered by such Eligible Institution together with a properly completed and
duly executed Letter of Transmittal (and any other required documents). Unless
Original Securities being tendered by the above-described method (or a timely
Book-Entry Confirmation) are deposited with the Exchange Agent within the time
period set forth above (accompanied or preceded by a properly completed Letter
of Transmittal and any other required documents), the Operating Partnership may,
at its option, reject the tender. Copies of a Notice of Guaranteed Delivery
which may be used by Eligible Institutions for the purposes described in this
paragraph are being delivered with this Prospectus and the related Letter of
Transmittal.
    
 
     A tender will be deemed to have been received as of the date when the
tendering holder's properly completed and duly signed Letter of Transmittal
accompanied by the Original Securities (or a timely Book-Entry Confirmation) is
received by the Exchange Agent. Issuances of Exchange Securities in exchange for
Original Securities tendered pursuant to a Notice of Guaranteed Delivery or
letter or facsimile transmission to similar effect (as provided above) by an
Eligible Institution will be made only against deposit of the Letter of
Transmittal (and any other required documents) and the tendered Original
Securities (or a timely Book-Entry Confirmation).
 
     All questions as to the validity, form, eligibility (including time of
receipt) and acceptance for exchange of any tender of Original Securities will
be determined by the Operating Partnership, whose determination will be final
and binding. The Operating Partnership reserves the absolute right to reject any
or all tenders not in proper form or the acceptances for exchange of which may,
in the opinion of counsel to the Operating Partnership, be unlawful. The
Operating Partnership also reserves the absolute right to waive any of the
conditions of the Exchange Offer or any defect or irregularities in tenders of
any particular holder whether or not similar defects or irregularities are
waived in the case of other holders. None of the Operating Partnership, the
Exchange Agent or any other person will be under any duty to give notification
of any defects or irregularities in tenders or shall incur any liability for
failure to give any such notification. The Operating Partnership's
interpretation of the terms and conditions of the Exchange Offer (including the
Letter of Transmittal and the instructions thereto) will be final and binding.
 
                                       14
<PAGE>   17
 
TERMS AND CONDITIONS OF THE LETTER OF TRANSMITTAL
 
     The Letter of Transmittal contains, among other things, the following terms
and conditions, which are part of the Exchange Offer.
 
     The party tendering Original Securities for exchange (the "Transferor")
exchanges, assigns and transfers the Original Securities to the Operating
Partnership and irrevocably constitutes and appoints the Exchange Agent as the
Transferor's agent and attorney-in-fact to cause the Original Securities to be
assigned, transferred and exchanged. The Transferor represents and warrants that
it has full power and authority to tender, exchange, assign and transfer the
Original Securities, and that, when the same are accepted for exchange, the
Operating Partnership will acquire good and unencumbered title to the tendered
Original Securities, free and clear of all liens, restrictions, charges and
encumbrances and not subject to any adverse claim. The Transferor also warrants
that it will, upon request, execute and deliver any additional documents deemed
by the Operating Partnership to be necessary or desirable to complete the
exchange, assignment and transfer of tendered Original Securities. All authority
conferred by the Transferor will survive the death or incapacity of the
Transferor and every obligation of the Transferor shall be binding upon the
heirs, legal representatives, successors, assigns, executors and administrators
of such Transferor.
 
     Each holder of Original Securities (other than certain specified holders)
who wishes to exchange Original Securities for Exchange Securities in the
Exchange Offer will be required to represent in the Letter of Transmittal that
(i) it is not an affiliate of the Operating Partnership, (ii) the Exchange
Securities to be received by it were acquired in the ordinary course of its
business and (iii) at the time of the Exchange Offer, it has no arrangement with
any person to participate in the distribution (within the meaning of the
Securities Act) of the Exchange Securities.
 
WITHDRAWAL RIGHTS
 
     Original Securities tendered pursuant to the Exchange Offer may be
withdrawn at any time prior to the Expiration Date.
 
     For a withdrawal to be effective, a written or facsimile transmission
notice of withdrawal must be timely received by the Exchange Agent at its
address set forth on the back cover of this Prospectus. Any such notice of
withdrawal must specify the person named in the Letter of Transmittal as having
tendered Original Securities to be withdrawn, the certificate numbers of
Original Securities to be withdrawn, the principal amount of Original Securities
to be withdrawn (which must be an authorized denomination), that such holder is
withdrawing his election to have such Original Securities exchanged, and the
name of the registered holder of such Original Securities. Additionally, the
signature on the notice of withdrawal must be guaranteed by an Eligible
Institution (except in the case of Original Securities tendered for the account
of an Eligible Institution). The Exchange Agent will return the properly
withdrawn Original Securities promptly following receipt of notice of
withdrawal. All questions as to the validity of notices of withdrawals,
including time of receipt, will be determined by the Operating Partnership, and
such determination will be final and binding on all parties.
 
ACCEPTANCE OF ORIGINAL SECURITIES FOR EXCHANGE; DELIVERY OF EXCHANGE SECURITIES
 
     Upon the terms and subject to the conditions of the Exchange Offer, the
acceptance for exchange of Original Securities validly tendered and not
withdrawn will be made on the Exchange Date. The Exchange Securities will be
issued as promptly as practicable after the Expiration Date. For the purposes of
the Exchange Offer, the Operating Partnership shall be deemed to have accepted
for exchange validly tendered Original Securities when, as and if the Operating
Partnership has given oral or written notice thereof to the Exchange Agent, with
written confirmation of any oral notice to be given promptly thereafter.
 
     The Exchange Agent will act as agent for the tendering holders of Original
Securities for the purposes of receiving Exchange Securities from the Operating
Partnership and causing the Original Securities to be assigned, transferred and
exchanged. Upon the terms and subject to the conditions of the Exchange Offer,
delivery of Exchange Securities to be issued in exchange for accepted Original
Securities will be made by the
 
                                       15
<PAGE>   18
 
   
Exchange Agent promptly after acceptance of the tendered Original Securities.
Original Securities not accepted for exchange by the Operating Partnership will
be returned without expense to the tendering holders (or in the case of Original
Securities tendered by book-entry transfer into the Exchange Agent's account at
DTC pursuant to the procedures described above, such non-exchanged Original
Securities will be credited to an account maintained with DTC) promptly
following the Expiration Date or, if the Operating Partnership terminates the
Exchange Offer prior to the Expiration Date, promptly after the Exchange Offer
is so terminated.
    
 
CONDITIONS TO THE EXCHANGE OFFER
 
     Notwithstanding any other provision of the Exchange Offer, or any extension
of the Exchange Offer, the Operating Partnership will not be required to issue
Exchange Securities in respect of any properly tendered Original Securities not
previously accepted and may terminate the Exchange Offer (by oral or written
notice to the Exchange Agent and by timely public announcement communicated,
unless otherwise required by applicable law or regulation, by making a release
to the Dow Jones News Service) or, at its option, modify or otherwise amend the
Exchange Offer, if (a) there shall be threatened, instituted or pending any
action or proceeding before, or any injunction, order or decree shall have been
issued by, any court or governmental agency or other governmental regulatory or
administrative agency or commission, (i) seeking to restrain or prohibit the
making or consummation of the Exchange Offer or any other transaction
contemplated by the Exchange Offer, (ii) assessing or seeking any damages as a
result thereof, or (iii) resulting in a material delay in the ability of the
Operating Partnership to accept for exchange or exchange some or all of the
Original Securities pursuant to the Exchange Offer; (b) any statute, rule,
regulation, order or injunction shall be sought, proposed, introduced, enacted,
promulgated or deemed applicable to the Exchange Offer or any of the
transactions contemplated by the Exchange Offer by any government or
governmental authority, domestic or foreign, or any action shall have been
taken, proposed or threatened, by any government, governmental authority, agency
or court, domestic or foreign, that in the sole judgment of the Operating
Partnership might directly or indirectly result in any of the consequences
referred to in clauses (a)(i) or (ii) above or, in the sole judgment of the
Operating Partnership, might result in the holders of Exchange Securities having
obligations with respect to resales and transfers of Exchange Securities which
are greater than those described in the interpretations of the Commission
referred to on the cover page of this Prospectus, or would otherwise make it
inadvisable to proceed with the Exchange Offer; or (c) a material adverse change
shall have occurred in the business, condition (financial or otherwise),
operations, or prospects of the Operating Partnership.
 
     The foregoing conditions are for the sole benefit of the Operating
Partnership and may be asserted by it with respect to all or any portion of the
Exchange Offer regardless of the circumstances (including any action or inaction
by the Operating Partnership) giving rise to such condition or may be waived by
the Operating Partnership in whole or in part at any time or from time to time
in their sole discretion. The failure by the Operating Partnership at any time
to exercise any of the foregoing rights will not be deemed a waiver of any such
right, and each right will be deemed an ongoing right which may be asserted at
any time or from time to time. In addition, the Operating Partnership has
reserved the right, notwithstanding the satisfaction of each of the foregoing
conditions, to terminate or amend the Exchange Offer.
 
     Any determination by the Operating Partnership concerning the fulfillment
or non-fulfillment of any conditions will be final and binding upon all parties.
 
     In addition, the Operating Partnership will not accept for exchange any
Original Securities tendered and no Exchange Securities will be issued in
exchange for any such Original Securities, if at such time any stop order shall
be threatened or in effect with respect to (i) the Registration Statement of
which this Prospectus constitutes a part or (ii) qualification under the Trust
Indenture Act of 1939 (the "TIA") of the Indenture pursuant to which such
Original Securities were issued.
 
EXCHANGE AGENT
 
     The Chase Manhattan Bank has been appointed as the Exchange Agent for the
Exchange Offer. Letters of Transmittal must be addressed to the Exchange Agent
at its address set forth on the back cover page of this Prospectus.
 
                                       16
<PAGE>   19
 
     Delivery to an address other than as set forth herein, or transmissions of
instructions via a facsimile number other than the ones set forth herein, will
not constitute a valid delivery.
 
SOLICITATION OF TENDERS; EXPENSES
 
     The Operating Partnership has not retained any dealer-manager or similar
agent in connection with the Exchange Offer and will not make any payments to
brokers, dealers or others for soliciting acceptances of the Exchange Offer. The
Operating Partnership will, however, pay the Exchange Agent reasonable and
customary fees for its services and will reimburse it for reasonable
out-of-pocket expenses in connection therewith.
 
     No person has been authorized to give any information or to make any
representations in connection with the Exchange Offer other than those contained
in this Prospectus. If given or made, such information or representations should
not be relied upon as having been authorized by the Operating Partnership.
Neither the delivery of this Prospectus nor any exchange made hereunder shall,
under any circumstances, create any implication that there has been no change in
the affairs of the Operating Partnership since the respective dates as of which
information is given herein. The Exchange Offer is not being made to (nor will
tenders be accepted from or on behalf of) holders of Original Securities in any
jurisdiction in which the making of the Exchange Offer or the acceptance thereof
would not be in compliance with the laws of such jurisdiction. However, the
Operating Partnership may, at its discretion, take such action as it may deem
necessary to make the Exchange Offer in any such jurisdiction and extend the
Exchange Offer to holders of Original Securities in such jurisdiction. In any
jurisdiction the securities laws or blue sky laws of which require the Exchange
Offer to be made by a licensed broker or dealer, the Exchange Offer is being
made on behalf of the Operating Partnership by one or more registered brokers or
dealers which are licensed under the laws of such jurisdiction.
 
APPRAISAL RIGHTS
 
     HOLDERS OF ORIGINAL SECURITIES WILL NOT HAVE DISSENTERS' RIGHTS OR
APPRAISAL RIGHTS IN CONNECTION WITH THE EXCHANGE OFFER.
 
FEDERAL INCOME TAX CONSEQUENCES
 
     The exchange of Original Securities for Exchange Securities by holders will
not be a taxable exchange for Federal income tax purposes, and holders should
not recognize any taxable gain or loss or any interest income as a result of
such exchange.
 
OTHER
 
     Participation in the Exchange Offer is voluntary and holders should
carefully consider whether to accept. Holders of the Original Securities are
urged to consult their financial and tax advisors in making their own decisions
on what action to take.
 
     As a result of the making of, and upon acceptance for exchange of all
validly tendered Original Securities pursuant to the terms of this Exchange
Offer, the Operating Partnership will have fulfilled a covenant contained in the
terms of the Original Securities and the Registration Rights Agreement. Holders
of the Original Securities who do not tender their certificates in the Exchange
Offer will continue to hold such certificates and will be entitled to all the
rights, and limitations applicable thereto, under the Indenture pursuant to
which such Original Securities were issued, except for any such rights under the
respective Registration Rights Agreement, which by their terms terminate or
cease to have further effect as a result of the making of this Exchange Offer.
See "Description of the Securities." All untendered Original Securities will
continue to be subject to the restriction on transfer set forth in the Indenture
pursuant to which such Original Securities were issued.
 
     The Operating Partnership may in the future seek to acquire untendered
Original Securities in open market or privately negotiated transactions, through
subsequent exchange offers or otherwise. The Operating Partnership has no
present plan to acquire any Original Securities which are not tendered in the
Exchange Offer.
 
                                       17
<PAGE>   20
 
                           DESCRIPTION OF SECURITIES
 
     The Exchange Securities, like the Original Securities, will be issued under
an Indenture dated as of November 26, 1996, between the Operating Partnership
and The Chase Manhattan Bank, as Trustee (the "Trustee"), as supplemented by an
Indenture Supplement dated as of June 22, 1998 (together, the "Indenture"). The
terms of the Securities include those provisions contained in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of
1939, as amended (the "TIA"). The following summaries of certain provisions of
the Indenture do not purport to be complete and are subject to, and are
qualified in their entirety by reference to, all provisions of the Indenture,
including the definition therein of certain terms, and the TIA. A copy of the
Indenture is filed as an exhibit to the Registration Statement of which this
Prospectus forms a part.
 
GENERAL
 
   
     The 2003 Notes, 2005 Notes, 2018 Notes and the MOPPRS will be limited in
aggregate principal amount to $375,000,000, $300,000,000, $200,000,000 and
$200,000,000, respectively. The Exchange Securities will be issuable in fully
registered form, without coupons, in minimum denominations of $1,000 and
integral multiples of $1,000 in excess thereof. The Securities will be unsecured
and unsubordinated and will rank pari passu with all other unsecured and
unsubordinated obligations of the Operating Partnership from time to time
outstanding (other than obligations preferred by mandatory provisions of law).
The Securities will be effectively subordinated to (i) the prior claims of each
secured mortgage lender to any specific SDG Portfolio Property that secures such
lender's mortgage and (ii) any claims of creditors of subsidiaries of the
Operating Partnership to the extent of the assets of such subsidiaries. Subject
to certain limitations set forth in the Indenture, and as described under
"-- Certain Covenants -- Limitations on Incurrence of Debt" below, the Indenture
will permit the Operating Partnership and its subsidiaries to incur additional
secured and unsecured indebtedness. No partner (whether limited or general,
including Simon Group and SPG Properties) of the Operating Partnership has any
obligation for payment of principal of (and premium, if any) and interest, if
any, on, or any other amount with respect to, the Securities.
    
 
     Unless redeemed prior to maturity as described under "-- Optional
Redemption of Notes," the entire principal amount of each of the 2003 Notes, the
2005 Notes and the 2018 Notes will mature and become due and payable, together
with accrued and unpaid interest thereon, if any, on June 15, 2003, June 15,
2005, and June 15, 2018, respectively. Unless redeemed prior to maturity as
described under "-- Optional Redemption" and "-- Redemption of MOPPRS," the
MOPPRS will mature on June 15, 2028 (the "Stated Maturity Date"). The MOPPRS are
subject to mandatory tender on June 16, 2008. See "-- Tender of MOPPRS;
Remarketing." The Securities are not subject to any sinking fund provisions.
 
   
     Except as described under "-- Certain Covenants -- Limitations on
Incurrence of Debt" and under "-- Merger, Consolidation or Sale," the Indenture
does not contain any provisions that would limit the ability of the Operating
Partnership to incur indebtedness or that would afford holders of the Notes
protection in the event of (i) a highly leveraged or similar transaction
involving the Operating Partnership, Simon Group, or any affiliate thereof, (ii)
a change of control, or (iii) a reorganization, restructuring, merger or similar
transaction involving the Operating Partnership that may adversely affect the
holders of the Notes. In addition, subject to the limitations set forth under
"-- Merger, Consolidation or Sale," the Operating Partnership may, in the
future, enter into certain transactions such as the sale of all or substantially
all of its assets or the merger or consolidation of the Operating Partnership
that would increase the amount of the Operating Partnership's indebtedness or
substantially reduce or eliminate the Operating Partnership's assets, which may
have an adverse effect on the Operating Partnership's ability to service its
indebtedness, including the Notes.
    
 
PRINCIPAL AND INTEREST
 
     The 2003 Notes will bear interest at 6 5/8% per annum, the 2005 Notes will
bear interest at 6 3/4% per annum and the 2018 Notes will bear interest at
7 3/8% per annum, in each case from June 22, 1998, or from the immediately
preceding Interest Payment Date to which interest has been paid, payable
semi-annually in
 
                                       18
<PAGE>   21
 
arrears on each June 15 and December 15, commencing December 15, 1998, and on
the maturity date. The MOPPRS will bear interest from June 22, 1998 at the
annual interest rate of 7% to the Remarketing Date. Such interest shall be
payable in arrears on each June 15 and December 15, commencing December 15,
1998; provided that on the Interest Payment Date occurring in June 2008,
interest shall be payable on June 16, 2008. If the Remarketing Dealer elects to
remarket the MOPPRS, except in the limited circumstances described herein, (i)
the MOPPRS will be subject to mandatory tender to the Remarketing Dealer at 100%
of the principal amount thereof for remarketing on the Remarketing Date, on the
terms and subject to the conditions described herein, and (ii) on and after the
Remarketing Date, the MOPPRS will bear interest at the rate determined by the
Remarketing Dealer in accordance with the procedures set forth below (the
"Interest Rate to Maturity"). See "-- Tender of MOPPRS; Remarketing."
 
     Interest on the Securities will be payable to the persons in whose names
the applicable Securities are registered in the security register applicable to
the Securities maintained by the Operating Partnership at the corporate trust
office of the Trustee (the "Security Register") at the close of business 15
calendar days prior to such Interest Payment Date regardless of whether such day
is a Business Day, as defined below. Interest on the Securities will be computed
on the basis of a year of twelve 30-day months.
 
     The principal of each Security payable at maturity or redemption will be
paid against presentation and surrender of such Security at the corporate trust
office of the Trustee, located at New York, New York, in such coin or currency
of the United States of America as at the time of payment is legal tender for
payment of public and private debts.
 
     If any Interest Payment Date or the maturity date falls on a day that is
not a Business Day, the required payment shall be made on the next Business Day
with the same force and effect as though it were made on the date such payment
was due and no interest shall accrue on the amount so payable for the period
from and after such Interest Payment Date or the maturity date, as the case may
be. "Business Day" means any day, other than a Saturday or Sunday, that is
neither a legal holiday nor a day on which banking institutions in The City of
New York are authorized or required by law, regulation or executive order to
close.
 
OPTIONAL REDEMPTION
 
     The Notes of any series may be redeemed at any time after the Closing Date,
and the MOPPRS may be redeemed at any time at the option of the Operating
Partnership, (x) prior to the Remarketing Date with the consent of the
Remarketing Dealer and (y) if the Remarketing Dealer has remarketed the MOPPRS,
after the Remarketing Date, in all cases, in whole or from time to time in part,
at a redemption price equal to the sum of (i) the principal amount of the
Securities being redeemed plus accrued interest thereon to the redemption date
and (ii) the Make-Whole Amount (as defined below), if any, with respect to such
Securities (the "Redemption Price").
 
     If notice of redemption has been given as provided in the Indenture and
funds for the redemption of any Securities of any series called for redemption
shall have been made available on the redemption date referred to in such
notice, such Securities will cease to bear interest on the date fixed for such
redemption specified in such notice and the only right of the holders of the
Securities from and after the redemption date will be to receive payment of the
Redemption Price upon surrender of such Securities in accordance with such
notice.
 
     Notice of any optional redemption of any Securities of any series will be
given to holders at their addresses, as shown in the Security Register for the
Securities, not more than 60 nor less than 30 days prior to the date fixed for
redemption. The notice of redemption will specify, among other items, the
Redemption Price and the principal amount of the Securities of such series held
by such holder to be redeemed.
 
     If less than all the Securities of any series are to be redeemed at the
option of the Operating Partnership, the Operating Partnership will notify the
Trustee at least 45 days prior to giving notice of redemption (or such shorter
period as may be satisfactory to the Trustee) of the aggregate principal amount
of Securities of such series to be redeemed and their redemption date. The
Trustee shall select, in such manner as it shall deem fair and appropriate,
Securities of such series to be redeemed in whole or in part.
 
                                       19
<PAGE>   22
 
     As used herein:
 
     "Make-Whole Amount" means, in connection with any optional redemption or
accelerated payment of any Securities, the excess, if any, of (i) the aggregate
present value as of the date of such redemption or accelerated payment of each
dollar of principal being redeemed or paid and the amount of interest (exclusive
of interest accrued to the date of redemption or accelerated payment) that would
have been payable in respect of each such dollar if such redemption or
accelerated payment had not been made (through the Remarketing Date in the case
of a Make-Whole Amount with respect to a redemption of MOPPRS prior to the
Remarketing Date), determined by discounting, on a semi-annual basis, such
principal and interest at the Reinvestment Rate (determined on the third
Business Day preceding the date notice of such redemption is given or
declaration of acceleration is made) from the respective dates on which such
principal and interest would have been payable if such redemption or accelerated
payment had not been made, to the date of redemption or accelerated payment,
over (ii) the aggregate principal amount of the Securities being redeemed or
accelerated.
 
     "Reinvestment Rate" means the yield on treasury securities at a constant
maturity corresponding to the remaining life (as of the date of redemption, and
rounded to the nearest month) to stated maturity of the principal being redeemed
(the "Treasury Yield"), plus .25%. For purposes hereof, the Treasury Yield shall
be equal to the arithmetic mean of the yields published in the Statistical
Release under the heading "Week Ending" for "U.S. Government
Securities -- Treasury Constant Maturities" with a maturity equal to such
remaining life; provided, that if no published maturity exactly corresponds to
such remaining life, then the Treasury Yield shall be interpolated or
extrapolated on a straight-line basis from the arithmetic means of the yields
for the next shortest and next longest published maturities, rounding each of
such relevant periods to the nearest month. For purposes of calculating the
Reinvestment Rate, the most recent Statistical Release published prior to the
date of determination of the Make-Whole amount shall be used. If the format or
content of the Statistical Release changes in a manner that precludes
determination of the Treasury Yield in the above manner, then the Treasury Yield
shall be determined in the manner that most closely approximates the above
manner, as reasonably determined by the Operating Partnership.
 
     "Statistical Release" means the statistical release designated "H.15(519)"
or any successor publication which is published weekly by the Federal Reserve
System and which reports yields on actively traded United States government
securities adjusted to constant maturities, or, if such statistical release is
not published at the time of any determination under the Indenture, then such
other reasonably comparable index which shall be designated by the Operating
Partnership.
 
TENDER OF MOPPRS; REMARKETING
 
     The following description sets forth the terms and conditions of the
remarketing of the MOPPRS, in the event that the Remarketing Dealer elects to
purchase the MOPPRS and remarkets the MOPPRS on the Remarketing Date.
 
     Mandatory Tender.  Provided that the Remarketing Dealer gives notice to the
Operating Partnership and the Trustee on a Business Day not later than five
Business Days prior to the Remarketing Date of its intention to purchase the
MOPPRS for remarketing (the "Notification Date"), each MOPPRS will be
automatically tendered, or deemed tendered, to the Remarketing Dealer for
purchase on the Remarketing Date, except in the circumstances described under
"-- Repurchase of MOPPRS" or "-- Redemption of MOPPRS." The purchase price for
the tendered MOPPRS to be paid by the Remarketing Dealer will equal 100% of the
principal amount thereof. See "-- Notification of Results; Settlement." When the
MOPPRS are tendered for remarketing, the Remarketing Dealer may remarket the
MOPPRS for its own account at varying prices to be determined by the Remarketing
Dealer at the time of each sale. From and after the Remarketing Date, the MOPPRS
will bear interest at the Interest Rate to Maturity. If the Remarketing Dealer
elects to remarket the MOPPRS, the obligation of the Remarketing Dealer to
purchase the MOPPRS on the Remarketing Date is subject to, among other things,
the conditions that, since the Notification Date, no material adverse change in
the condition of the Operating Partnership and its subsidiaries, considered as
one enterprise, shall have occurred and that no Event of Default (as defined in
the Indenture), or any event which,
 
                                       20
<PAGE>   23
 
with the giving of notice or passage of time, or both, would constitute an Event
of Default, with respect to the MOPPRS shall have occurred and be continuing. If
for any reason the Remarketing Dealer does not purchase all tendered MOPPRS on
the Remarketing Date, the Operating Partnership will be required to repurchase
the MOPPRS from the holders thereof at a price equal to the principal amount
thereof plus all accrued and unpaid interest, if any, on the MOPPRS to the
Remarketing Date. See "-- Repurchase of MOPPRS."
 
     The Interest Rate to Maturity shall be determined by the Remarketing Dealer
by 3:30 p.m., New York City time, on the third Business Day immediately
preceding the Remarketing Date (the "Determination Date") to the nearest one
hundred-thousandth (0.00001) of one percent per annum and will be equal to
5.649% (the "Base Rate") plus the Applicable Spread (as defined below) which
will be based on the Dollar Price (as defined below) of the MOPPRS.
 
     The "Applicable Spread" will be the lowest bid indication, expressed as a
spread (in the form of a percentage or in basis points) above the Base Rate,
obtained by the Remarketing Dealer on the Determination Date from the bids
quoted by five Reference Corporate Dealers (as defined below) for the full
aggregate principal amount of the MOPPRS at a purchase price equal to the Dollar
Price, but assuming (i) an issue date equal to the Remarketing Date, with
settlement on such date without accrued interest, (ii) a maturity date equal to
the Stated Maturity Date of the MOPPRS, and (iii) a stated annual interest rate,
payable semiannually on each Interest Payment Date, equal to the Base Rate plus
the spread bid by the applicable Reference Corporate Dealer. If fewer than five
Reference Corporate Dealers bid as described above, then the Applicable Spread
shall be the lowest of such bid indications obtained as described above. The
Interest Rate to Maturity announced by the Remarketing Dealer, absent manifest
error, shall be binding and conclusive upon the Beneficial Owners and Holders of
the MOPPRS, the Operating Partnership and the Trustee.
 
     "Dollar Price" means, with respect to the MOPPRS, the present value as
determined by the Remarketing Dealer, as of the Remarketing Date, of the
Remaining Scheduled Payments (as defined below) discounted to the Remarketing
Date, on a semiannual basis (assuming a 360-day year consisting of twelve 30-day
months), at the Treasury Rate (as defined below).
 
     "Reference Corporate Dealers" means leading dealers of publicly traded debt
securities of the Operating Partnership in The City of New York (which may
include the Remarketing Dealer or one of its affiliates, but not both) selected
by the Remarketing Dealer and reasonably acceptable to the Operating
Partnership.
 
     "Treasury Rate" means, with respect to the Determination Date, the rate per
annum equal to the semiannual equivalent yield to maturity or interpolated (on a
day count basis) yield to maturity of the Comparable Treasury Issues (as defined
below), assuming a price for the Comparable Treasury Issues (expressed as a
percentage of its principal amount), equal to the Comparable Treasury Price (as
defined below) for such Determination Date.
 
     "Comparable Treasury Issues" means the United States Treasury security or
securities selected by the Remarketing Dealer as having an actual or
interpolated remaining maturity or maturities of thirty years.
 
     "Comparable Treasury Price" means, with respect to the Determination Date,
(a) the offer prices for the Comparable Treasury Issues (expressed in each case
as a percentage of its principal amount) on the Determination Date, as set forth
on "Telerate Page 500" (or such other page as may replace Telerate Page 500) or
(b) if such page (or any successor page) is not displayed or does not contain
such offer prices on such Business Day, (i) the average of the Reference
Treasury Dealer Quotations for such Determination Date, after excluding the
highest and lowest of such Reference Treasury Dealer Quotations, or (ii) if the
Remarketing Dealer obtains fewer than four such Reference Treasury Dealer
Quotations, the average of all such Reference Treasury Dealer Quotations.
"Telerate Page 500" means the display designated as "Telerate Page 500" on Dow
Jones Markets Limited (or such other page as may replace Telerate Page 500 on
such service) or such other service displaying the offer prices specified in (a)
above as may replace Dow Jones Markets Limited. "Reference Treasury Dealer
Quotations" means, with respect to each Reference Treasury Dealer and the
Remarketing Date, the offer prices for the Comparable Treasury Issues (expressed
in each case as a percentage of its principal amount) quoted to the Remarketing
Dealer by such Reference Treasury Dealer by 3:30 p.m., New York City time, on
the Determination Date.
 
                                       21
<PAGE>   24
 
     "Reference Treasury Dealer" means each of Credit Suisse First Boston
Corporation, Lehman Brothers Inc., Merrill Lynch, Pierce, Fenner & Smith
Incorporated, Morgan Stanley & Co. Incorporated and Salomon Brothers Inc (or
their respective affiliates which are primary U.S. Government securities
dealers) and their respective successors; provided, however, that if any of the
foregoing or their affiliates shall cease to be a primary U.S. Government
securities dealer in The City of New York (a "Primary Treasury Dealer").
 
     "Remaining Scheduled Payments" means, with respect to the MOPPRS, the
remaining scheduled payments of the principal thereof and interest thereon,
calculated at the Base Rate only, that would be due after the Remarketing Date
to and including the Stated Maturity Date, as determined by the Remarketing
Dealer.
 
     Notification of Results; Settlement.  Provided the Remarketing Dealer has
previously notified the Operating Partnership and the Trustee on the
Notification Date of its intention to purchase all tendered MOPPRS on the
Remarketing Date, the Remarketing Dealer will notify the Operating Partnership,
the Trustee and DTC by telephone, confirmed in writing (which may include
facsimile or other electronic transmission), by 4:00 p.m., New York City time,
on the Determination Date, of the Interest Rate to Maturity. All of the tendered
MOPPRS will be automatically delivered to the account of the Trustee, by
book-entry through DTC pending payment of the purchase price therefor, on the
Remarketing Date.
 
     In the event that the Remarketing Dealer purchases the tendered MOPPRS on
the Remarketing Date, the Remarketing Dealer will make or cause the Trustee to
make payment of 100% of the principal amount of the tendered MOPPRS that have
been purchased for remarketing by the Remarketing Dealer. If the Remarketing
Dealer does not purchase all of the MOPPRS on the Remarketing Date, it will be
the obligation of the Operating Partnership to make or cause to be made such
payment for the MOPPRS, as described below under "-- Repurchase of MOPPRS." In
any case, the Operating Partnership will make or cause the Trustee to make
payment of interest due on the Remarketing Date by book-entry through DTC by the
close of business on the Remarketing Date.
 
     The transactions described above will be executed on the Remarketing Date
through DTC in accordance with the procedures of DTC, and the accounts of the
respective DTC Participants will be debited and credited and the MOPPRS
delivered by book-entry as necessary to effect the purchases and sales thereof.
 
     Transactions involving the sale and purchase of MOPPRS remarketed by the
Remarketing Dealer on and after the Remarketing Date will settle in immediately
available funds through DTC's Same-Day Funds Settlement System.
 
     The tender and settlement procedures described above, including provisions
for payment by purchasers of MOPPRS in the remarketing or for payment to holders
of tendered MOPPRS, may be modified to the extent required by DTC or to the
extent required to facilitate the tender and remarketing of MOPPRS in
certificated form, if the book-entry system is no longer available for the
MOPPRS at the time of the remarketing. In addition, the Remarketing Dealer may,
in accordance with the terms of the Indenture, modify the tender and settlement
procedures set forth above in order to facilitate the tender and settlement
process.
 
     The Remarketing Dealer.  The Operating Partnership and the Remarketing
Dealer are entering into a Remarketing Agreement, the general terms and
provisions of which are summarized below.
 
     The Remarketing Dealer will not receive any fees or reimbursement of
expenses from the Operating Partnership in connection with the remarketing.
 
     The Operating Partnership will agree to indemnify the Remarketing Dealer
against certain liabilities, including liabilities under the Securities Act of
1933 (the "Securities Act"), arising out of or in connection with its duties
under the Remarketing Agreement.
 
     In the event that the Remarketing Dealer elects to remarket the MOPPRS as
described herein, the obligation of the Remarketing Dealer to purchase MOPPRS
from tendering holders of MOPPRS will be subject to several conditions precedent
set forth in the Remarketing Agreement, including the conditions that, since the
Notification Date, no material adverse change in the condition of the Operating
Partnership and its subsidiaries, considered as one enterprise, shall have
occurred and that no Event of Default (as defined in the
 
                                       22
<PAGE>   25
 
Indenture), or any event which, with the giving of notice or passage of time, or
both, would constitute an Event of Default, with respect to the MOPPRS shall
have occurred and be continuing. In addition, the Remarketing Agreement will
provide for the termination thereof, or redetermination of the Interest Rate to
Maturity, by the Remarketing Dealer on or before the Remarketing Date, upon the
occurrence of certain events as set forth in the Remarketing Agreement.
 
     No holder of any MOPPRS shall have any rights or claims under the
Remarketing Agreement or against the Remarketing Dealer as a result of the
Remarketing Dealer not purchasing such MOPPRS.
 
     The Remarketing Agreement will also provide that the Remarketing Dealer may
resign at any time as Remarketing Dealer, such resignation to be effective 10
days after the delivery to the Operating Partnership and the Trustee of notice
of such resignation. In such case, it shall be the sole obligation of the
Operating Partnership to appoint a successor Remarketing Dealer, if it desires
to do so.
 
     The Remarketing Dealer, in its individual or any other capacity, may buy,
sell, hold and deal in any of the MOPPRS. The Remarketing Dealer may exercise
any vote or join in any action which any Beneficial Owner of MOPPRS may be
entitled to exercise or take with like effect as if it did not act in any
capacity under the Remarketing Agreement. The Remarketing Dealer, in its
individual capacity, either as principal or agent, may also engage in or have an
interest in any financial or other transaction with the Operating Partnership as
freely as if did not act in any capacity under the Remarketing Agreement.
 
REPURCHASE OF MOPPRS
 
     In the event that (i) the Remarketing Dealer for any reason does not notify
the Operating Partnership of the Interest Rate to Maturity by 4:00 p.m., New
York City time, on the Determination Date, or (ii) prior to the Remarketing
Date, the Remarketing Dealer has resigned and no successor has been appointed on
or before the Determination Date, or (iii) since the Notification Date, the
Remarketing Dealer has terminated the Remarketing Agreement due to the
occurrence of a material adverse change in the condition of the Operating
Partnership and its subsidiaries, considered as one enterprise, an Event of
Default, or any event which, with the giving of notice or passage of time, or
both, would constitute an Event of Default, with respect to the MOPPRS, or any
other event constituting a termination event under the Remarketing Agreement, or
(iv) the Remarketing Dealer elects not to remarket the MOPPRS, or (v) the
Remarketing Dealer for any reason does not purchase all tendered MOPPRS on the
Remarketing Date, the Operating Partnership will repurchase the MOPPRS as a
whole on the Remarketing Date at a price equal to 100% of the principal amount
of the MOPPRS plus all accrued and unpaid interest, if any, on the MOPPRS to the
Remarketing Date. In any such case, payment will be made by the Operating
Partnership to the DTC Participant of each tendering holder of MOPPRS, by
book-entry through DTC by the close of business on the Remarketing Date against
delivery through DTC of such Beneficial Owner's tendered MOPPRS.
 
REDEMPTION OF MOPPRS
 
     If the Remarketing Dealer elects to remarket the MOPPRS on the Remarketing
Date, the MOPPRS will be subject to mandatory tender to the Remarketing Dealer
for remarketing on such date, in each case subject to the conditions described
above under "-- Tender of MOPPRS; Remarketing" and "-- Repurchase of MOPPRS" and
to the Operating Partnership's right to redeem the MOPPRS from the Remarketing
Dealer as described in the next sentence. The Operating Partnership will notify
the Remarketing Dealer and the Trustee, not later than the Business Day
immediately preceding the Determination Date, if the Operating Partnership
irrevocably elects to exercise its right to redeem the MOPPRS, in whole but not
in part, from the Remarketing Dealer on the Remarketing Date at the MOPPRS
Optional Redemption Price.
 
     The "MOPPRS Optional Redemption Price" shall be the greater of (i) 100% of
the principal amount of the MOPPRS and (ii) the sum of the present values of the
Remaining Scheduled Payments thereon, as determined by the Remarketing Dealer,
discounted to the Remarketing Date on a semiannual basis (assuming a 360-day
year consisting of twelve 30-day months) at the Treasury Rate, plus in either
case accrued and unpaid interest from the Remarketing Date on the principal
amount being redeemed to the date of redemption. If the Operating Partnership
elects to redeem the MOPPRS, it shall pay the redemption price
 
                                       23
<PAGE>   26
 
therefor in same-day funds by wire transfer to an account designated by the
Remarketing Dealer on the Remarketing Date.
 
CERTAIN COVENANTS
 
   
     Limitations on Incurrence of Debt.  The Operating Partnership will not, and
will not permit any Subsidiary (as defined below) to, incur any Debt (as defined
below), other than intercompany debt (representing Debt to which the only
parties are SPG Properties, the Operating Partnership and any of their
Subsidiaries (but only so long as such Debt is held solely by any of SPG
Properties, the Operating Partnership and any Subsidiary) that is subordinate in
right of payment to the Securities), if, immediately after giving effect to the
incurrence of such additional Debt, the aggregate principal amount of all
outstanding Debt would be greater than 60% of the sum of (i) the Operating
Partnership's Adjusted Total Assets (as defined below) as of the end of the
fiscal quarter prior to the incurrence of such additional Debt and (ii) any
increase in Adjusted Total Assets from the end of such quarter including,
without limitation, any pro forma increase from the application of the proceeds
of such additional Debt.
    
 
     In addition to the foregoing limitation on the incurrence of Debt, the
Operating Partnership will not, and will not permit any Subsidiary to, incur any
Debt secured by any mortgage, lien, pledge, encumbrance or security interest of
any kind upon any of the property of the Operating Partnership or any Subsidiary
("Secured Debt"), whether owned at the date of the Indenture or thereafter
acquired, if, immediately after giving effect to the incurrence of such
additional Secured Debt, the aggregate principal amount of all outstanding
Secured Debt is greater than 55% of the sum of (i) the Operating Partnership's
Adjusted Total Assets as of the end of the fiscal quarter prior to the
incurrence of such additional Secured Debt and (ii) any increase in Adjusted
Total Assets from the end of such quarter including, without limitation, any pro
forma increase from the application of the proceeds of such additional Secured
Debt.
 
     In addition to the foregoing limitations on the incurrence of Debt, the
Operating Partnership will not, and will not permit any Subsidiary to, incur any
Debt if the ratio of Annualized EBITDA After Minority Interest to Interest
Expense (in each case as defined below) for the period consisting of the four
consecutive fiscal quarters most recently ended prior to the date on which such
additional Debt is to be incurred shall have been less than 1.75 to 1 on a pro
forma basis after giving effect to the incurrence of such Debt and to the
application of the proceeds therefrom, and calculated on the assumption that (i)
such Debt and any other Debt incurred since the first day of such four-quarter
period had been incurred, and the proceeds therefrom had been applied (to
whatever purposes such proceeds had been applied as of the date of calculation
of such ratio), at the beginning of such period, (ii) any other Debt that has
been repaid or retired since the first day of such four-quarter period had been
repaid or retired at the beginning of such period (except that, in making such
computation, the amount of Debt under any revolving credit facility shall be
computed based upon the average daily balance of such Debt during such period),
(iii) any income earned as a result of any assets having been placed in service
since the end of such four-quarter period had been earned, on an annualized
basis, during such period, and (iv) in the case of any acquisition or
disposition by the Operating Partnership, any Subsidiary or any unconsolidated
joint venture in which the Operating Partnership or any Subsidiary owns an
interest, of any assets since the first day of such four-quarter period,
including, without limitation, by merger, stock purchase or sale, or asset
purchase or sale, such acquisition or disposition and any related repayment of
Debt had occurred as of the first day of such period with the appropriate
adjustments with respect to such acquisition or disposition being included in
such pro forma calculation.
 
     For purposes of the foregoing provisions regarding the limitation on the
incurrence of Debt, Debt shall be deemed to be "incurred" by the Operating
Partnership, its Subsidiaries and by any unconsolidated joint venture, whenever
the Operating Partnership, any Subsidiary, or any unconsolidated joint venture,
as the case may be, shall create, assume, guarantee or otherwise become liable
in respect thereof.
 
     Maintenance of Unencumbered Assets.  The Operating Partnership is required
to maintain Unencumbered Assets (as defined below) of not less than 150% of the
aggregate outstanding principal amount of the Unsecured Debt (as defined below)
of the Operating Partnership.
 
                                       24
<PAGE>   27
 
     As used herein:
 
   
     "Adjusted Total Assets" as of any date means the sum of (i) the defined
amount determined by multiplying the sum of the shares of common stock of SPG
Properties issued in the initial public offering of SPG Properties ("IPO") and
the units of the Operating Partnership not held by SPG Properties outstanding on
the date of the IPO, by $22.25 (the "IPO Price"), (ii) the principal amount of
the outstanding consolidated debt of SPG Properties on the date of the IPO, less
any portion applicable to minority interests, (iii) the Operating Partnership's
allocable portion, based on its ownership interest, of outstanding indebtedness
of unconsolidated joint ventures on the date of the IPO, (iv) the purchase price
or cost of any real estate assets acquired (including the value, at the time of
such acquisition, of any units of the Operating Partnership or shares of Common
Stock of SPG Properties issued in connection therewith) or developed after the
IPO by the Operating Partnership or any Subsidiary, less any portion
attributable to minority interests, plus the Operating Partnership's allocable
portion, based on its ownership interest, of the purchase price or cost of any
real estate assets acquired or developed after the IPO by any unconsolidated
joint venture, (v) the value of the DeBartolo Merger compiled as the sum of (a)
the purchase price including all related closing costs and (b) the value of all
outstanding indebtedness less any portion attributable to minority interests,
including the Operating Partnership's allocable share, based on its ownership
interest, of outstanding indebtedness of unconsolidated joint ventures at the
DeBartolo Merger date, and (vi) working capital of the Operating Partnership;
subject, however, to reduction by the amount of the proceeds of any real estate
assets disposed of after the IPO by the Operating Partnership or any Subsidiary,
less any portion applicable to minority interests, and by the Operating
Partnership's allocable portion, based on its ownership interest, of the
proceeds of any real estate assets disposed of after the IPO by unconsolidated
joint ventures.
    
 
     "Annualized EBITDA" means earnings before interest, taxes, depreciation and
amortization for all properties with other adjustments as are necessary to
exclude the effect of items classified as extraordinary items in accordance with
generally accepted accounting principles, adjusted to reflect the assumption
that (i) any income earned as a result of any assets having been placed in
service since the end of such period had been earned, on an annualized basis,
during such period, and (ii) in the case of any acquisition or disposition by
the Operating Partnership, any Subsidiary or any unconsolidated joint venture in
which the Operating Partnership or any Subsidiary owns an interest, of any
assets since the first day of such period, such acquisition or disposition and
any related repayment of Debt had occurred as of the first day of such period
with the appropriate adjustments with respect to such acquisition or
disposition.
 
     "Annualized EBITDA After Minority Interest" means Annualized EBITDA after
distributions to third party joint venture partners.
 
   
     "DeBartolo Merger" means the merger of SPG Properties and DeBartolo Realty
Corporation and related transactions consummated on August 9, 1996, pursuant to
the Agreement and Plan of Merger between Simon Property Group, Inc. and
DeBartolo Realty Corporation.
    
 
     "Debt" means any indebtedness of the Operating Partnership and its
Subsidiaries on a consolidated basis, less any portion attributable to minority
interests, plus the Operating Partnership's allocable portion, based on its
ownership interest, of indebtedness of unconsolidated joint ventures, in respect
of (i) borrowed money evidenced by bonds, notes, debentures or similar
instruments, as determined in accordance with generally accepted accounting
principles, (ii) indebtedness secured by any mortgage, pledge, lien, charge,
encumbrance or any security interest existing on property owned by the Operating
Partnership or any Subsidiary directly, or indirectly through unconsolidated
joint ventures, as determined in accordance with generally accepted accounting
principles, (iii) reimbursement obligations, contingent or otherwise, in
connection with any letters of credit actually issued or amounts representing
the balance deferred and unpaid of the purchase price of any property, except
any such balance that constitutes an accrued expense or trade payable, and (iv)
any lease of property by the Operating Partnership or any Subsidiary as lessee
which is reflected in the Operating Partnership's consolidated balance sheet as
a capitalized lease or any lease of property by an unconsolidated joint venture
as lessee which is reflected in such joint venture's balance sheet as a
capitalized lease, in each case, in accordance with generally accepted
accounting principles; provided, that Debt also includes, to the extent not
otherwise included, any obligation by the Operating Partnership or any
Subsidiary to be liable for,
 
                                       25
<PAGE>   28
 
or to pay, as obligor, guarantor or otherwise, items of indebtedness of another
person (other than the Operating Partnership or any Subsidiary) described in
clauses (i) through (iv) above (or, in the case of any such obligation made
jointly with another person, the Operating Partnership's or Subsidiary's
allocable portion of such obligation based on its ownership interest in the
related real estate assets).
 
     "Interest Expense" includes the Operating Partnership's pro rata share of
joint venture interest expense and is reduced by amortization of debt issuance
costs.
 
     "Subsidiary" means a corporation, partnership, joint venture, limited
liability company or other entity, a majority of the outstanding voting stock,
partnership interests or membership interests, as the case may be, of which is
owned or controlled, directly or indirectly, by the Operating Partnership or by
one or more other Subsidiaries of the Operating Partnership. For the purposes of
this definition, "voting stock" means stock having voting power for the election
of directors, or trustees, as the case may be, whether at all times or only so
long as no senior class of stock has such voting power by reason of any
contingency.
 
     "Unencumbered Annualized EBITDA After Minority Interest" means Annualized
EBITDA After Minority Interest less any portion thereof attributable to assets
serving as collateral for Secured Debt.
 
     "Unencumbered Assets" as of any date shall be equal to Adjusted Total
Assets as of such date multiplied by a fraction, the numerator of which is
Unencumbered Annualized EBITDA After Minority Interest and the denominator of
which is Annualized EBITDA After Minority Interest.
 
     "Unsecured Debt" means Debt which is not secured by any mortgage, lien,
pledge, encumbrance or security interest of any kind.
 
   
     Compliance with the covenants described herein generally may not be waived
by the Board of Directors of Simon Group or the General Partners, as general
partners of the Operating Partnership, or by the Trustee unless the holders of
at least a majority in principal amount of all Outstanding Securities consent to
such waiver.
    
 
     Merger, Consolidation or Sale.  The Operating Partnership may consolidate
with, or sell, lease or convey all or substantially all of its assets to, or
merge with or into, any other entity, provided that (a) the Operating
Partnership shall be the continuing entity, or the successor entity (if other
than the Operating Partnership) formed by or resulting from an such
consolidation or merger or which shall have received the transfer of such assets
shall expressly assume payment of the principal of (and premium, if any) and
interest on the securities issued under the Indenture ("Debt Securities") and
the due and punctual performance and observance of all of the covenants and
conditions contained in the Indenture; (b) immediately after giving effect to
such transaction and treating any indebtedness which becomes an obligation of
the Operating Partnership or any Subsidiary as a result thereof as having been
incurred by the Operating Partnership or such Subsidiary at the time of such
transaction, no Event of Default under the Indenture, and no event which, after
notice or the lapse of time, or both, would become such an Event of Default,
shall have occurred and be continuing; and (c) an officer's certificate and
legal opinion covering such conditions shall be delivered to the Trustee.
 
     Existence.  Except as permitted under "-- Merger, Consolidation or Sale"
above, the Operating Partnership is required to do or cause to be done all
things necessary to preserve and keep in full force and effect its existence,
rights (statutory and charter) and franchises; provided, however, that the
Operating Partnership shall not be required to preserve any such right or
franchise if it determines that the loss thereof is not disadvantageous in any
material respect to the holders of the Securities.
 
     Maintenance of Properties.  The Operating Partnership is required to cause
all of its material properties used or useful in the conduct of its business or
the business of any Subsidiary to be maintained and kept in good condition,
repair and working order and supplied with all necessary equipment and to cause
to be made all necessary repairs, renewals, replacements, betterments and
improvements thereof, all as in the judgment of the Operating Partnership may be
necessary so that the business carried on in connection therewith may be
properly conducted at all times; provided, however, that the Operating
Partnership and its subsidiaries shall not be prevented from selling or
otherwise disposing for value their respective properties in the ordinary course
of business.
 
                                       26
<PAGE>   29
 
     Insurance.  The Operating Partnership is required to, and is required to
cause each of its Subsidiaries to, keep all of its insurable properties insured
against loss or damage at least equal to their then full insurable value
(subject to reasonable deductibles determined from time to time by the Operating
Partnership) with financially sound and reputable insurance companies.
 
     Payment of Taxes and Other Claims.  The Operating Partnership is required
to pay or discharge or cause to be paid or discharged, before the same shall
become delinquent, (i) all taxes, assessments and governmental charges levied or
imposed upon it or any Subsidiary or upon its income, profits or property or
that of any Subsidiary, and (ii) all lawful claims for labor, materials and
suppliers which, if unpaid, might by law become a lien upon the property of the
Operating Partnership or any Subsidiary; provided, however, that the Operating
Partnership shall not be required to pay or discharge or cause to be paid or
discharged any such tax, assessment, charge or claim whose amount, applicability
or validity is being contested in good faith by appropriate proceedings.
 
     Provision of Financial Information.  The holders of Securities will be
provided with copies of the annual reports and quarterly reports of the
Operating Partnership. Whether or not the Operating Partnership is subject to
Section 13 or 15(d) of the Exchange Act and for so long as any Securities are
outstanding, the Operating Partnership will, to the extent permitted under the
Exchange Act, be required to file with the Commission the annual reports,
quarterly reports and other documents which the Operating Partnership would have
been required to file with the Commission pursuant to such Section 13 or 15(d)
(the "Financial Statements") if the Operating Partnership were so subject, such
documents to be filed with the Commission on or prior to the respective dates
(the "Required Filing Dates") by which the Operating Partnership would have been
required so to file such documents if the Operating Partnership were so subject.
The Operating Partnership will also in any event (x) within 15 days of each
Required Filing Date (i) transmit by mail to all holders of Securities, as their
names and addresses appear in the Security Register, without cost to such
holders, copies of the annual reports and quarterly reports which the Operating
Partnership would have been required to file with the Commission pursuant to
Section 13 or 15(d) of the Exchange Act if the Operating Partnership were
subject to such Sections and (ii) file with the Trustee copies of the annual
reports, quarterly reports and other documents which the Operating Partnership
would have been required to file with the Commission pursuant to Section 13 or
15(d) of the Exchange Act if the Operating Partnership were subject to such
Sections and (y) if filing such documents by the Operating Partnership with the
Commission is not permitted under the Exchange Act, promptly upon written
request and payment of the reasonable cost of duplication and delivery, supply
copies of such documents to any prospective holder.
 
MODIFICATION OF THE INDENTURE
 
     Modifications and amendments of the Indenture will be permitted to be made
only with the consent of the holders of not less than a majority in principal
amount of all Outstanding Debt Securities which are affected by such
modification or amendment (voting as one class); provided, however, that no such
modification or amendment may, without the consent of the holder of each such
Debt Security affected thereby: (a) change the stated maturity of the principal
of, or premium (if any) or any installment of interest on, any such Debt
Security; (b) reduce the principal amount of, or the rate or amount of interest
on, or any premium payable on redemption of, any such Debt Security, or reduce
the amount of principal of an Original Issue Discount Security (as defined in
the Indenture as supplemented) that would be due and payable upon acceleration
of the maturity thereof or that would be provable in bankruptcy, or adversely
affect any right of repayment at the option of the holder of any such Debt
Security; (c) change the Place of Payment, or the coin or currency, for payment
of principal of, premium, if any, or interest on any such Debt Security; (d)
impair the right to institute suit for the enforcement of any payment on or with
respect to any such Debt Security; (e) reduce the above-stated percentage in
principal amount of Outstanding Debt Securities necessary to modify or amend the
Indenture, reduce the percentage of Outstanding Debt Securities necessary to
waive compliance with certain provisions thereof or certain defaults and
consequences thereunder, or to reduce the quorum or voting requirements set
forth in the Indenture; or (f) modify any of the foregoing provisions or any of
the provisions relating to the waiver of certain past defaults or certain
covenants, except to increase the
 
                                       27
<PAGE>   30
 
percentage required to effect such action or to provide that certain other
provisions may not be modified or waived without the consent of the holder of
each Outstanding Debt Security affected thereby.
 
     The Indenture provides that the holders of not less than a majority in
principal amount of a series of Outstanding Securities have the right to waive
compliance by the Operating Partnership with certain covenants relating to such
Securities in the Indenture.
 
     Modifications and amendments of the Indenture will be permitted to be made
by the Operating Partnership and the Trustee without the consent of any holder
of Debt Securities for any of the following purposes: (i) to evidence the
succession of another Person to the Operating Partnership as obligor under the
Indenture; (ii) to add to the covenants of the Operating Partnership for the
benefit of the holders of all Debt Securities or to surrender any right or power
conferred upon the Operating Partnership in the Indenture; (iii) to add Events
of Default for the benefit of the holders of all Debt Securities; (iv) to add or
change any provisions of the Indenture to facilitate the issuance of, or to
liberalize certain terms of, Debt Securities in bearer form, to change or
eliminate any restrictions on payment of the principal of or premium or interest
on Debt Securities, to modify the provisions relating to global Debt Securities,
or to permit or facilitate the issuance of Debt Securities in uncertificated
form, provided that such action shall not adversely affect the interests of the
holders of the Debt Securities in any material respect; (v) to change or
eliminate any provisions of the Indenture, provided that any such change or
elimination shall become effective only when there are no Debt Securities
Outstanding of any series created prior thereto which are entitled to the
benefit of such provision or such amendment shall not apply to any then
Outstanding Debt Security; (vi) to secure the Debt Securities; (vii) to
establish the form or terms of Debt Securities of any series; (viii) to provide
for the acceptance of appointment by a successor Trustee or facilitate the
administration of the trusts under the Indenture by more than one Trustee; (ix)
to cure any ambiguity, defect or inconsistency in the Indenture, provided that
such action shall not adversely affect the interests of holders of Debt
Securities of any series in any material respect; or (x) to supplement any of
the provisions of the Indenture to the extent necessary to permit or facilitate
defeasance and discharge of Debt Securities, provided that such action shall not
adversely affect the interests of the holders of the Debt Securities of any
series in any material respect.
 
     The Indenture provides that in determining whether the holders of the
requisite principal amount of the outstanding Debt Securities have given any
request, demand, authorization, direction, notice, consent or waiver thereunder
or whether a quorum is present at a meeting of holders of Debt Securities, owned
by the Operating Partnership or any other obligor upon the Securities or any
affiliate of the Operating Partnership or of such other obligor shall be
disregarded.
 
EVENTS OF DEFAULT
 
     The Indenture provides that the following events are "Events of Default":
(a) default for 30 days in the payment of an installment of interest on any
Security of such series; (b) default in the payment of the principal of (or
premium, if any, on) any Security at its maturity; (c) default in making an
sinking fund payment as required for any Security; (d) default in the
performance of any other covenant of the Operating Partnership contained in the
Indenture (other than a covenant added to the Indenture solely for the benefit
of a series of Securities issued thereunder other than), such default having
continued for 60 days after written notice as provided in the Indenture; (e)
default in the payment of an aggregate principal amount exceeding $30,000,000 of
any recourse indebtedness of the Operating Partnership, however evidenced, such
default having occurred after the expiration of any applicable grace period and
having resulted in the acceleration of the maturity of such indebtedness, but
only if such indebtedness is not discharged or such acceleration is not
rescinded or annulled within 10 days after written notice as provided in the
Indenture; and (f) certain events of bankruptcy, insolvency or reorganization,
or court appointment of a receiver, liquidator or trustee of the Operating
Partnership or any Significant Subsidiary or any of their respective property.
 
     If an Event of Default under the Indenture with respect to Securities at
the time Outstanding occurs and is continuing, then in every such case the
Trustee or the holders of not less than 25% in principal amount of the
Outstanding Securities may declare the principal amount to be due and payable
immediately by written notice thereof to the Operating Partnership (and to the
Trustee if given by the holders); provided, that in the
 
                                       28
<PAGE>   31
 
case of an Event of Default described under paragraph (f) of the preceding
paragraph, acceleration is automatic. However, at any time after such
acceleration with respect to Securities as been made, but before a judgment or
decree for payment of the money due has been obtained by the Trustee, the
holders of not less than a majority in principal amount of Outstanding
Securities may rescind and annul such acceleration and its consequences if (a)
the Operating Partnership shall have deposited with the Trustee all amounts due
otherwise than on account of such declaration, plus certain fees, expenses,
disbursements and advances of the Trustee and (b) all Events of Default, other
than the nonpayment of accelerated principal of the Securities have been cured
or waived as provided in the Indenture. The Indenture also provides that the
holders of not less than a majority in principal amount of the Outstanding
Securities may waive any past default and its consequences, except a default (x)
in the payment of the principal of (or premium, if any) or interest on any
Security of such series or (y) in respect of a covenant or provision contained
in the Indenture that cannot be modified or amended without the consent of the
holder of each Outstanding Security affected thereby.
 
     The Trustee will be prepared to give notice to the holders of Debt
Securities within 90 days of a default under the Indenture unless such default
has been cured or waived; provided, however, that the Trustee may withhold
notice to the holders of Securities of any default with respect to such
Securities (except a default in the payment of the principal of (or premium, if
any) or interest on any Security or in the payment of any sinking fund
installment in respect of any Security) if a trust committee of Responsible
Officers of the Trustee consider such withholding to be in the interest of such
holders.
 
     The Indenture provides that no holders of Securities may institute any
proceedings, judicial or otherwise, with respect to the Indenture or for any
remedy thereunder, except in the case of failure of the Trustee, for 60 days, to
act after it has received a written request to institute proceedings in respect
of an Event of Default from the holders of not less than 25% in principal amount
of the Outstanding Securities, as well as an offer of indemnity reasonably
satisfactory to it. This provision will not prevent, however, any holder of
Securities from instituting suit for the enforcement of payment of the principal
of (and premium, if any) and interest on such Securities at the respective due
dates thereof.
 
     Subject to provisions in the Indenture relating to its duties in case of
default, the Trustee is under no obligation to exercise any of its rights or
powers under the Indenture at the request of any holders of Securities then
Outstanding under the Indenture, unless such holders shall have offered to the
Trustee thereunder reasonable security or indemnity. The holders of not less
than a majority in principal amount of the Outstanding Securities shall have the
right to direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or of exercising any trust or power conferred
upon the Trustee with respect to the Securities. However, the Trustee may refuse
to follow any direction which is in conflict with any law or the Indenture,
which may involve the Trustee in personal liability or which may be unduly
prejudicial to the holders of Securities of such series not joining therein.
 
     Within 120 days after the close of each fiscal year, the Operating
Partnership must deliver to the Trustee a certificate, signed by one of several
specified officers of the Operating Partnership stating whether or not such
officer has knowledge of any default under the Indenture and, if so, specifying
each such default and the nature and status thereof.
 
DEFEASANCE AND COVENANT DEFEASANCE
 
     The Indenture provides that the Operating Partnership may elect either (a)
to defease and be discharged from any and all obligations with respect to the
Securities (in the case of the MOPPRS, only after to the Remarketing Date)
(except for the obligations to register the transfer or exchange of the
Securities, to replace temporary or mutilated, destroyed, lost or stolen
Securities, to maintain an office or agency in respect of such Securities and to
hold moneys for payment in trust) ("defeasance") or (b) to be released from its
obligations with respect to the Securities (including the restrictions described
under "-- Certain Covenants" above) and its obligations with respect to any
other covenant, and any omission to comply with such obligations shall not
constitute a default or an Event of Default with respect to the Securities
("covenant defeasance"), in either case upon the irrevocable deposit by the
Operating Partnership with the Trustee, in trust, of an amount, in such currency
or currencies, currency unit or units or composite currency or currencies in
which the Securities
 
                                       29
<PAGE>   32
 
are payable at maturity, or Government Obligations (as defined below), or both,
that through the scheduled payment of principal and interest in accordance with
their terms will provide money in an amount sufficient to pay the principal of,
premium, if any, and interest on the Securities on the scheduled due dates
therefor.
 
     Such a trust will only be permitted to be established if, among other
things, the Operating Partnership has delivered to the Trustee an Opinion of
Counsel (as specified in the Indenture) to the effect that the holders of such
Debt Securities will not recognize income, gain or loss for U.S. federal income
tax purposes as a result of such defeasance or covenant defeasance and will be
subject to U.S. federal income tax on the same amounts, in the same manner and
at the same times as would have been the case if such defeasance or covenant
defeasance had not occurred, and such Opinion of Counsel, in the case of
defeasance, must refer to and be based upon a ruling of the Internal Revenue
Service or a change in applicable United States federal income tax law occurring
after the date of the Indenture.
 
     "Government Obligations" means securities which are direct obligations of
the United States of America or (ii) obligations of a person controlled or
supervised by and acting as an agency or instrumentality of the United States of
America, the payment of which is unconditionally guaranteed as a full faith and
credit obligation by the United States of America that are not callable or
redeemable at the option of the issuer thereof, and shall also include a
depository receipt issued by a bank or trust company as custodian with respect
to any such Government Obligations or a specific payment of interest on or
principal of any such Government Obligations held by such custodian for the
account of the holder of a depository receipt, provided that (except as required
by law) such custodian is not authorized to make any deduction from the amount
payable to the holder of such depository receipt from any amount received by the
custodian in respect of the Government Obligation or the specific payment of
interest on or principal of the Government Obligation evidenced by such
depository receipt.
 
BOOK ENTRY; DELIVERY AND FORM
 
  The Global Securities.
 
     Each series of the Exchange Securities issued in the Exchange Offer will
initially be represented by a single, permanent global Security in definitive,
fully registered form (the "Global Securities"). Upon the issuance of the Global
Securities, DTC or its custodian will credit, on its internal system, the
respective principal amount of the individual beneficial interests represented
by such Global Security to the accounts of persons who have accounts with such
depositary. Ownership of beneficial interests in a Global Security will be
limited to persons who have accounts with DTC ("participants") or persons who
hold interests through participants. Ownership of beneficial interests in a
Global Security will be shown on, and the transfer of that ownership will be
effected only through, records maintained by DTC or its nominee (with respect to
interests of participants) and the records of participants (with respect to
interests of persons other than participants).
 
     So long as DTC or its nominee is the registered holder of a Global
Security, DTC or such nominee, as the case may be, will be considered the sole
owner or holder of the Securities represented by such Global Security for all
purposes under the applicable Indenture and under the Securities represented
thereby. No beneficial owner of an interest in a Global Security will be able to
transfer that interest except in accordance with the procedures provided for
under the applicable procedures of DTC.
 
     Payments of the principle of, and interest on, the Securities represented
by the Global Securities will be made to DTC or its nominee, as the case may be,
as the registered owner thereof. None of the Operating Partnership, the Trustee
or any paying agent will have any responsibility or liability for any aspect of
the records relating to or payments made on account of beneficial ownership
interests in the Global Securities or for maintaining, supervising or reviewing
any records relating to such beneficial ownership interests.
 
     The Operating Partnership expects that DTC or its nominee, upon receipt of
any payment of principal or interest in respect of Securities represented by a
Global Security will credit participants' accounts with payments in amounts
proportionate to their respective beneficial interests in the principal amount
of such Global Security as shown on the records of DTC or its nominee. The
Operating Partnership also expects that payment by participants to owners of
beneficial interests in such Global Security held through such
 
                                       30
<PAGE>   33
 
participants will be governed by standing instructions and customary practices,
as is now the case with securities held for the accounts of customers registered
in the name of nominees for such customers. Such payments will be the
responsibility of such participants. Transfers between participants in DTC will
be effected in the ordinary way in accordance with DTC rules and will be settled
in same-day funds. Transfers between participants in Euroclear and CEDEL will be
effected in the ordinary way in accordance with their respective rules and
operating procedures.
 
     Because of time zone differences, the securities account of a Euroclear or
CEDEL participant purchasing an interest in a Global Security from a Participant
in DTC will be credited, and any such crediting will be reported to the relevant
Euroclear or CEDEL participant during the securities settlement processing day
(which must be a business day for Euroclear or CEDEL) immediately following the
settlement date of DTC. Cash received in Euroclear or CEDEL as a result of sales
of interests in a Global Security by or through a Euroclear or CEDEL participant
to a Participant in DTC will be received with value on the settlement date of
DTC but will be available in the relevant Euroclear or CEDEL cash account only
as of the business day for Euroclear or CEDEL following DTC's settlement date.
 
     DTC has advised the Operating Partnership that it will take any action
permitted to be taken by a holder of Securities (including the presentation of
Securities for exchange as described below) only at the direction of one or more
participants to whose account an interest in the Global Securities is credited
and only in respect of such series and such portion of the aggregate principal
amount of Securities as to which such participant or participants has or have
given such direction.
 
     DTC has advised the Operating Partnership as follows: DTC is a limited
purpose trust company organized under the laws of the State of New York, a
"banking organization" within the meaning of New York Banking Law, a member of
the Federal Reserve System, a "clearing corporation" within the meaning of the
Uniform Commercial Code and a "Clearing Agency" registered pursuant to the
provisions of Section 17A of the Exchange Act. DTC was created to hold
securities for its participants and facilitate the clearance and settlement of
securities transactions between participants through electronic book-entry
changes in accounts of its participants, thereby eliminating the need for
physical movement of certificates. Participants include securities brokers and
dealers, banks, trust companies and clearing corporations and certain other
organizations. Indirect access to the DTC system is available to others such as
banks, brokers, dealers and trust companies that clear through or maintain a
custodial relationship with a participant either directly or indirectly
("indirect participants").
 
     Although DTC has agreed to the foregoing procedures in order to facilitate
transfers of interests in the Global Securities among participants of DTC it is
under no obligation to perform or continue to perform such procedures, and such
procedures may be discontinued at any the. Neither the Operating Partnership nor
the Trustee will have any responsibility for the performance by DTC or its
respective participants or indirect participants of its respective obligations
under the rules and procedures governing its operations.
 
  Certificated Securities
 
     Global Securities may not be transferred as or exchanged for physical
certificates in registered form without coupons (the "Certificated Securities")
except (i) if DTC notifies the Operating Partnership that it is unwilling or
unable to continue to act as depositary with respect to the Global Securities or
ceases to be a clearing agency registered under the Exchange Act and, in either
case, a successor depositary registered as a clearing agency under the Exchange
Act is not appointed by the Operating Partnership within 120 days, (ii) at any
time if the Operating Partnership in its sole discretion determines that the
Global Securities (in whole but not in part) should be exchanged for
Certificated Securities or (iii) if the owner of an interest in the Global
Securities requests such Certificated Securities, following an Event of Default
under the Indenture, in a writing delivered through the depositary to the
Trustee.
 
     The information in this section concerning DTC, Euroclear and CEDEL and
their book-entry systems has been obtained from sources that the Operating
Partnership believes to be reliable, but the Operating Partnership takes no
responsibility for the accuracy thereof.
 
                                       31
<PAGE>   34
 
REGISTRATION RIGHTS
 
     The Operating Partnership has entered into a registration rights agreement
with the Initial Purchasers (the "Registration Rights Agreement") for the
benefit of the holders of the Securities wherein the Operating Partnership
agreed, for the benefit of the holders of the Securities, to use its reasonable
best efforts (i) to file with the Commission within 90 calendar days after the
Closing Date a registration statement (the "Exchange Offer Registration
Statement") with respect to the Exchange Securities and (ii) to cause the
Exchange Offer Registration Statement to be declared effective under the
Securities Act within 135 calendar days after the Closing Date. Promptly after
the Exchange Offer Registration Statement has been declared effective, the
Operating Partnership will offer to holders the opportunity to exchange all
their Securities of a series for Exchange Securities of the same series (the
"Exchange Offer"). The Operating Partnership will keep the Exchange Offer open
for not less than 30 calendar days (or longer if required by applicable law)
after the date notice of the Exchange Offer is mailed to the holders of the
Securities but will, in any event, use its reasonable best efforts to cause the
Exchange Offer to be consummated within 180 days of the Closing Date. For each
Security validly tendered to the Operating Partnership pursuant to the Exchange
Offer, the holder of such Security will receive an Exchange Security of the same
series having a principal amount equal to the principal amount of the tendered
Security.
 
     If, (i) because of any change in law or in currently prevailing
interpretations of the Staff, the Operating Partnership is not permitted to
effect the Exchange Offer, (ii) the Exchange Offer is not consummated within 180
days of the Closing Date, or (iii) in the case of any holder that participates
in the Exchange Offer, such holder does not receive Exchange Securities on the
date of the exchange that may be sold without restriction under state and
federal securities laws (other than due solely to the status of such holder as
an affiliate of the Operating Partnership within the meaning of the Securities
Act or as a broker-dealer), then in each case, the Operating Partnership will
(x) promptly deliver to the holders written notice thereof and (y) at the
Operating Partnership's sole expense (a) as promptly as practicable (but in no
event more than 60 days after so required or requested pursuant to the
Registration Rights Agreement), file a shelf registration statement covering
resales of the Securities (the "Shelf Registration Statement"), (b) use its
reasonable best efforts to cause the Shelf Registration Statement to be declared
effective under the Securities Act and (c) use its reasonable best efforts to
keep effective the Shelf Registration Statement until the earlier of two years
(or, if Rule 144(k) is amended to provide a shorter restrictive period, the end
of such shorter period) after the Closing Date or such time as all of the
applicable Securities have been sold thereunder. The Operating Partnership will,
if a Shelf Registration Statement is filed, provide to each holder copies of the
prospectus that is a part of the Shelf Registration Statement, notify each such
holder when the Shelf Registration Statement for the Securities has become
effective and take certain other actions as are required to permit unrestricted
resales of the Securities. A holder that sells Securities pursuant to the Shelf
Registration Statement will be required to be named as a selling security holder
in the related prospectus, to provide information related thereto and to deliver
such prospectus to purchasers, will be subject to certain of the civil liability
provisions under the Securities Act in connection with such sales and will be
bound by the provisions of the Registration Rights Agreement that are applicable
to such a holder (including certain indemnification rights and obligations).
 
     If the Operating Partnership fails to comply with certain provisions of the
Registration Rights Agreement, in each case as described below, then a special
interest premium (the "Special Interest Premium") shall become payable in
respect of the Securities as follows:
 
     If (i) the Exchange Offer Registration Statement is not filed with the
Commission on or prior to the 90th day following the Closing Date, (ii) the
Exchange Offer Registration Statement is not declared effective on or prior to
the 135th day following the Closing Date or (iii) the Exchange Offer is not
consummated or the Shelf Registration Statement is not declared effective on or
prior to the 180th day following the Closing Date, the Special Interest Premium
shall accrue from and including the next day following each of (a) such 90-day
period in the case of clause (i) above, (b) such 135-day period in the case of
clause (ii) above and (c) such 180-day period in the case of clause (iii) above,
in each case at a rate equal to 0.50% per annum. The aggregate amount of the
Special Interest Premium payable pursuant to the above provisions will in no
event exceed 0.50% per annum. If the Exchange Offer Registration Statement is
not declared effective on or prior to the 135th day following the Closing Date
and the Operating Partnership shall request holders of Securities to
 
                                       32
<PAGE>   35
 
provide the information called for by the Registration Rights Agreement referred
to herein for inclusion in the Shelf Registration Statement, the Securities
owned by holders who do not deliver such information to the Operating
Partnership when required pursuant to the Registration Rights Agreement will not
be entitled to any such increase in the interest rate for any day after the
180th day following the Closing Date. Upon (1) the filing of the Exchange Offer
Registration Statement after the 90-day period described in clause (i), (2) the
effectiveness of the Exchange Offer Registration Statement after the 135-day
period described in clause (ii) above or (3) the consummation of the Exchange
Offer or the effectiveness of a Shelf Registration Statement, as the case may
be, after the 180-day period described in clause (iii) above, the interest rate
on each series of Securities from the date of such effectiveness or
consummation, as the case may be, will be reduced to the original interest rate
for such series of Securities.
 
     If a Shelf Registration Statement is declared effective pursuant to the
foregoing paragraphs, and if the Operating Partnership fails to keep such Shelf
Registration Statement continuously (x) effective or (y) useable for resales for
the period required by the Registration Rights Agreement due to certain
circumstances relating to pending corporate developments, public filings with
the Commission and similar events, or because the prospectus contains an untrue
statement of a material fact or omits to state a material fact required to be
stated therein or necessary in order to make the statements therein not
misleading, and such failure continues for more than 60 days (whether or not
consecutive) in any 12-month period (the 61st day being referred to as the
"Default Day"), then from the Default Day until the earlier of (i) the date that
the Shelf Registration Statement is again deemed effective or is useable, (ii)
the date that is the second anniversary of the Closing Date (or, if Rule 144(k)
is amended to provide a shorter restrictive period, the end of such shorter
period) or (iii) the date as of which all of the Securities are sold pursuant to
the Shelf Registration Statement, the Special Interest Premium shall accrue at a
rate equal to 0.50% per annum.
 
     If the Operating Partnership fails to keep the Shelf Registration Statement
continuously effective or useable for resales pursuant to the preceding
paragraph, it shall give the holders notice to suspend the sale of the
Securities and shall extend the relevant period referred to above during which
the Operating Partnership is required to keep effective the Shelf Registration
Statement (or the period during which Participating Broker-Dealers are entitled
to use the prospectus included in the Exchange Offer Registration Statement in
connection with the resale of Exchange Securities, as the case may be) by the
number of days during the period from and including the date of the giving of
such notice to and including the date when holders shall have received copies of
the supplemented or amended prospectus necessary to permit resales of the
Securities or to and including the date on which the Operating Partnership has
given notice that the sale of Securities may be resumed, as the case may be.
 
     The Registration Rights Agreement shall be governed by, and construed in
accordance with, the laws of the State of New York. The summary herein of
certain provisions of the Registration Rights Agreement does not purport to be
complete and is subject to, and is qualified in its entirety by reference to,
all the provisions of the Registration Rights Agreement, a form of which has
been filed as an exhibit to the Registration Statement of which this Prospectus
forms a part.
 
                                       33
<PAGE>   36
 
            CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS
 
     The following discussion is a summary of certain United States federal
income tax consequences of the purchase, ownership and disposition of the
Securities by holders acquiring the Securities at the "issue price" (i.e., the
first price at which a substantial amount of the Securities are sold to the
public). This summary is based upon current provisions of the Code, applicable
Treasury regulations, judicial authority and administrative rulings and
practice, all of which are subject to change, including changes in application,
interpretation and effective date possibly with retroactive effect. There can be
no assurance that the Internal Revenue Service (the "IRS") will not take a
contrary view, and no ruling from the IRS has been or will be sought.
 
     The tax treatment of a holder of Securities may vary depending upon such
holder's particular situation. Certain holders (including, but not limited to,
certain financial institutions, insurance companies, broker-dealers, foreign
corporations, nonresident alien individuals and persons holding the Securities
as part of a "straddle," "hedge" or "conversion transaction") may be subject to
special rules not discussed below. This discussion is limited to holders who
will hold the Securities as "capital assets" (generally, property held for
investment) within the meaning of Section 1221 of the Code. PROSPECTIVE
INVESTORS SHOULD CONSULT THEIR TAX ADVISORS AS TO THE PARTICULAR TAX
CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF THE SECURITIES,
INCLUDING THE APPLICABILITY AND EFFECT OF ANY STATE, LOCAL, FOREIGN OR OTHER TAX
LAWS.
 
     As used herein, the term "U.S. Holder" means a beneficial owner of
Securities that is for United States federal income tax purposes (i) a citizen
or resident of the United States, (ii) a corporation, partnership or other
entity created or organized in or under the laws of the United States or of any
political subdivision thereof (other than a partnership that is not treated as a
United States person under applicable Treasury regulations), (iii) an estate
whose income is subject to United States federal income tax regardless of its
source, (iv) a trust, if both (A) a court within the United States is able to
exercise primary supervision over the administration of the trust and (B) one or
more United States persons have the authority to control all substantial
decisions of the trust, or (v) any other person whose income or gain in respect
of the Securities is effectively connected with the conduct of a United States
trade or business. Notwithstanding the preceding sentence, to the extent
provided in Treasury regulations, certain trusts in existence on August 20,
1996, and treated as United States persons prior to such date, that elect to
continue to be treated as United States persons also will be a U.S. Holder. As
used herein, the term "non-U.S. Holder" means a beneficial owner of Securities
that is not a U.S. Holder.
 
EXCHANGE OFFER
 
     Pursuant to the Exchange Offer, the Securities may be exchanged for
Exchange Securities, which do not differ materially either in kind or extent
from the Securities. Accordingly, no gain or loss will be realized for United
States federal income tax purposes upon an exchange of the Securities for the
Exchange Securities pursuant to the Exchange Offer. A U.S. Holder will have the
same basis and holding period in the Exchange Securities that it had in the
Securities immediately prior to the exchange.
 
SPECIAL INTEREST PREMIUM
 
     Under the Registration Rights Agreement, the Operating Partnership will be
required to pay a Special Interest Premium to some or all of the holders of the
Securities under certain circumstances. Under the Treasury Regulations regarding
contingent payment debt instruments (the "Contingent Payment Regulations"), any
payment subject to a remote or incidental contingency (i.e., where there is a
remote likelihood that the payment will be required or the potential amount of
the payment is insignificant relative to the remaining payments on the debt
instrument) is not considered a contingent payment and is ignored for purposes
of computing original issue discount accruals. The Operating Partnership
believes that the Special Interest Premium payments with respect to the
Securities are subject to either a remote or incidental contingency.
Accordingly, a U.S. Holder of a Security should be required to report any
Special Interest Premium payment (as interest income) for United States federal
income tax purposes only at the time such payment is made or properly accrued
under the U.S. Holder's regular method of accounting. The Operating
 
                                       34
<PAGE>   37
 
Partnership's position that the Special Interest Premium payments are subject to
a remote or incidental contingency is binding on all holders unless the holder
discloses its differing position in a statement attached to its federal income
tax return for the taxable year during which the Security was acquired.
 
ORIGINAL ISSUE DISCOUNT
 
     The Securities are being issued at a discount from their "stated redemption
price at maturity," but the Securities will not have original issue discount
("OID"), because such discount will not exceed the statutory de minimis amount
(an amount equal to 1/4 of 1% of the Securities' stated redemption price
multiplied by the number of complete years from issue to maturity, or, in the
case of the MOPPRS, the number of complete years from issue to the Remarketing
Date).
 
SALE, RETIREMENT OR OTHER TAXABLE DISPOSITION
 
     In general, a U.S. Holder of a Security will recognize gain or loss upon
the sale, retirement or other taxable disposition of such Security in an amount
equal to the difference between (i) the amount of cash and the fair market value
of property received in exchange therefor (except to the extent attributable to
the payment of accrued interest, which generally will be taxable to a holder as
ordinary income) and (ii) the U.S. Holder's adjusted tax basis in such Security.
A U.S. Holder's tax basis in a Security generally will be equal to the price
paid for such Security. Net capital gain (i.e., generally, capital gain in
excess of capital loss) recognized by certain non-corporate taxpayers from the
sale of a capital asset that has been held for more than 12 months will be
subject to tax at a rate not to exceed 20%, and net capital gain recognized from
the sale of a capital asset that has been held for 12 months or less will be
subject to tax at ordinary income tax rates. In addition, capital gain
recognized by a corporate taxpayer will be subject to tax at the ordinary income
tax rates applicable to corporations.
 
FEDERAL INCOME TAX CONSIDERATIONS RELATING TO THE MOPPRS
 
     The United States federal income tax treatment of debt obligations such as
the MOPPRS is not entirely certain. Because the MOPPRS are subject to mandatory
tender or repurchase on the Remarketing Date, the Operating Partnership intends
to treat the MOPPRS as maturing on the Remarketing Date for United States
federal income tax purposes. By purchasing the MOPPRS, the U.S. Holder agrees to
follow such treatment for United States federal income tax purposes. As a result
of such treatment, interest on the MOPPRS will constitute "qualified stated
interest" and generally will be taxable to a U.S. Holder as ordinary interest
income at the time accrued or received (in accordance with the U.S. Holder's
regular method of tax accounting).
 
     Under the foregoing treatment, upon the sale, exchange or retirement of a
MOPPRS, a U.S. Holder generally will recognize taxable gain or loss equal to the
difference between the amount realized on the sale, exchange or retirement
(other than amounts representing accrued and unpaid interest) and such U.S.
Holder's adjusted tax basis in the MOPPRS. A U.S. Holder's adjusted tax basis in
a MOPPRS generally will equal such U.S. Holder's initial investment in the
MOPPRS increased by any original issue discount included in income (and accrued
market discount, if any, if the U.S. Holder has included such market discount in
income) and decreased by the amount of any payments, other than qualified stated
interest payments, received and amortizable bond premium taken with respect to
such MOPPRS.
 
     There can be no assurance that the IRS will agree with the Operating
Partnership's treatment of the MOPPRS and it is possible that the IRS could
assert another treatment. For instance, it is possible that the IRS could seek
to treat the MOPPRS as maturing on the Stated Maturity Date. In that event,
because the Interest Rate to Maturity would not be determined until the
Determination Date, the MOPPRS would be treated as having contingent interest
under the Contingent Payment Regulations. In that event, the Operating
Partnership would be required to construct a projected payment schedule for the
MOPPRS, based upon the Operating Partnership's current borrowing costs for
comparable noncontingent debt instruments of the Operating Partnership, from
which an estimated yield on the MOPPRS would be calculated. A U.S. Holder would
be required to include in income original issue discount in an amount equal to
the product of the adjusted issue price of the MOPPRS at the beginning of each
interest accrual period and the estimated yield
 
                                       35
<PAGE>   38
 
of the MOPPRS. In general, for these purposes, a MOPPRS' adjusted issue price
would equal the MOPPRS's issue price increased by the interest previously
accrued on the MOPPRS, and reduced by all payments made on the MOPPRS. As a
result of the application of the Contingent Payment Regulations, it is possible
that a U.S. Holder would be required to include interest in income in excess of
actual cash payments received for certain taxable years.
 
     In addition, the character of any gain or loss, upon the sale or exchange
of a MOPPRS (including a sale pursuant to the mandatory tender on the
Remarketing Date) by a U.S. Holder, would likely differ if the MOPPRS were
treated as contingent payment obligations. Any such taxable gain generally would
be treated as ordinary income. Any such taxable loss generally would be ordinary
to the extent of previously accrued original issue discount, and any excess
would generally be treated as capital loss. The Operating Partnership does not
intend to treat the MOPPRS as having contingent interest and will not construct
a projected payment schedule.
 
NON-U.S. HOLDERS
 
     A non-U.S. Holder will not be subject to federal income taxes on payments
of principal, premium (if any) or interest (including original issue discount,
if any) on a Security, unless such non-U.S. Holder is a direct or indirect 10%
or greater partner of the Operating Partnership, a controlled foreign
corporation related to the Operating Partnership or a bank receiving interest
described in section 881(c)(3)(A) of the Code. To qualify for the exemption from
taxation, the last United States payor in the chain of payment prior to payment
to a non-U.S. Holder (the "Withholding Agent") must have received in the year in
which a payment of interest or principal occurs, or in either of the two
preceding calendar years, a statement that (i) is signed by the beneficial owner
of the Security under penalties of perjury, (ii) certifies that such owner is
not a U.S. Holder and (iii) provides the name and address of the beneficial
owner. The statement may be made on an IRS Form W-8 or a substantially similar
form, and the beneficial owner must inform the Withholding Agent of any change
in the information on the statement within 30 days of such change. If a Security
is held through a securities clearing organization or certain other financial
institutions, the organization or institution may provide a signed statement to
the Withholding Agent. However, in such case, the signed statement must be
accompanied by a copy of the IRS Form W-8 or the substitute form provided by the
beneficial owner to the organization or institution. The Treasury Department is
considering implementation of further certification requirements aimed at
determining whether the issuer of a debt obligation is related to holders
thereof.
 
     In addition, a non-U.S. Holder will not be subject to federal income taxes
on any amount which constitutes gain upon retirement or disposition of a
Security, provided the gain is not effectively connected with the conduct of a
trade or business in the United States by the non-U.S. Holder. Certain other
exceptions may be applicable, and a non-U.S. Holder should consult its tax
advisor in this regard. The Security will not be includible in the estate of a
non-U.S. Holder unless the individual is a direct or indirect 10% or greater
partner of the Operating Partnership or, at the time of such individual's death,
payments in respect of the Security would have been effectively connected with
the conduct by such individual of a trade or business in the United States.
 
BACKUP WITHHOLDING
 
     Backup withholding of United States federal income tax at a rate of 31% may
apply to payments made in respect of a Security to registered owners who are not
"exempt recipients" and who fail to provide certain identifying information
(such as the registered owner's taxpayer identification number) in the required
manner. Generally, individuals are not exempt recipients, whereas corporations
and certain other entities generally are exempt recipients. Payments made in
respect of a Security to a U.S. Holder must be reported to the IRS, unless the
U.S. Holder is an exempt recipient or establishes an exemption. Compliance with
the identification procedures described in the preceding section would establish
an exemption from backup withholding for those non-U.S. Holders who are not
exempt recipients.
 
     In addition, upon the sale of a Security to (or through) a broker, the
broker must withhold 31% of the entire purchase price, unless either (i) the
broker determines that the seller is a corporation or other exempt
 
                                       36
<PAGE>   39
 
recipient or (ii) the seller provides, in the required manner, certain
identifying information and, in the case of a non-U.S. Holder, certifies that
such seller is a non-U.S. Holder (and certain other conditions are met). Such a
sale must also be reported by the broker to the IRS, unless either (i) the
broker determines that the seller is an exempt recipient or (ii) the seller
certifies its non-U.S. status (and certain conditions are met). Certification of
the registered owner's non-U.S. status would be made normally on an IRS Form W-8
under penalties of perjury, although in certain cases it may be possible to
submit other documentary evidence.
 
     Any amounts withheld under the backup withholding rules from a payment to a
beneficial owner would be allowed as a refund or a credit against such
beneficial owner's federal income tax liability provided the required
information is furnished to the IRS.
 
NEW WITHHOLDING REGULATIONS
 
     On October 6, 1997, the Treasury Department issued new regulations (the
"New Regulations") which make certain modifications to the withholding, backup
withholding and information reporting rules described above. The New Regulations
attempt to unify certification requirements and modify reliance standards. The
New Regulations will generally be effective for payments made after December 31,
1999, subject to certain transition rules. Prospective investors are urged to
consult their own tax advisors regarding the New Regulations.
 
                       STATE AND LOCAL TAX CONSIDERATIONS
 
     In addition to the Federal income tax consequences described in "Certain
Federal Income Tax Considerations," potential investors should consider the
state and local income tax consequences of the acquisition, ownership and
disposition of the Securities. State and local income tax law may differ
substantially from the corresponding federal law, and this discussion does not
purport to describe any aspect of the income tax laws of any state or locality.
Therefore, potential investors should consult their own tax advisors with
respect to the various state and local tax consequences of an investment in the
Securities.
 
                  ERISA CONSIDERATIONS RELATING TO THE MOPPRS
 
     The Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
and the Code impose certain restrictions on (a) employee benefit plans (as
defined in Section 3(3) of ERISA), (b) plans described in section 4975(e)(1) of
the Code, including individual retirement accounts or Keogh plans, (c) any
entities whose underlying assets include plan assets by reason of a plan's
investment in such entities (each, including (a) and (b), a "Plan") and (d)
persons who have certain specified relationships to such Plans ("Parties-in-
Interest" under ERISA and "Disqualified Persons" under Section 4975 of the
Code). Moreover, based on the reasoning of the United States Supreme Court in
John Hancock Life Insurance v. Harris Trust and Savings Bank, 114 S.C. 517
(1993), an insurance company's general account may be deemed to include assets
of the Plans investing in the general account (e.g., through the purchase of an
annuity contract). ERISA also imposes certain duties on persons who are
fiduciaries of Plans subject to ERISA and prohibits certain transactions between
a Plan and Parties-in-Interest or Disqualified Persons with respect to such
Plans.
 
     The Operating Partnership and the Remarketing Dealer, because of their
activities or the activities of their respective affiliates, may be considered
to be Parties-in-Interest or Disqualified Persons with respect to certain Plans.
If the MOPPRS are acquired by a Plan with respect to which the Operating
Partnership or the Remarketing Dealer is, or subsequently becomes, a
Party-in-Interest or Disqualified Person, the purchase, holding, or sale of
MOPPRS to the Remarketing Dealer could be deemed to be a direct or indirect
violation of the prohibited transaction rules of ERISA and the Code unless such
transaction were subject to one or more statutory or administrative exemptions,
such as Prohibited Transaction Class Exemption ("PTCE") 75-1, which exempts
certain transactions involving employee benefit plans and certain
broker-dealers, reporting dealers and banks; PTCE 90-1, which exempts certain
transactions between insurance company pooled separate accounts and
Parties-in-Interest or Disqualified Persons; PTCE 91-38, which exempts certain
transactions between bank collective investment funds and Parties-in-Interest or
Disqualified Persons;
 
                                       37
<PAGE>   40
 
PTCE 84-14, which exempts certain transactions effected on behalf of a Plan by a
"qualified professional asset manager;" PTCE 95-60, which exempts certain
transactions between insurance company general accounts and Parties-in-Interest
or Disqualified Persons; or PTCE 96-23, which exempts certain transactions
effected on behalf of a Plan by an "in-house asset manager." Even if the
conditions specified in one or more of these exemptions are met, the scope of
relief provided by these exemptions may not necessarily cover all acts that
might be construed as prohibited transactions.
 
     Accordingly, prior to making an investment in the MOPPRS, a Plan should
determine whether the Operating Partnership or the Remarketing Dealer is a
Party-in-Interest or Disqualified Person with respect to such Plan and, if so,
whether such transaction is subject to one or more statutory or administrative
exemptions, including those described above.
 
     Prior to making an investment in the MOPPRS, Plans should consult with
their legal advisers concerning the impact of ERISA and Section 4975 of the Code
and the potential consequences of such investment with respect to their specific
circumstances. Moreover, each Plan fiduciary should take into account, among
other considerations, whether the fiduciary has the authority to make the
investment on behalf of the Plan; whether the investment constitutes a direct or
indirect transaction with a Party-in-Interest or a Disqualified Person; and
whether under the general fiduciary standards of investment procedure and
diversification an investment in the MOPPRS is appropriate for the Plan, taking
into account, among other things, the overall investment policy of the Plan and
the composition of the Plan's investment portfolio.
 
                              PLAN OF DISTRIBUTION
 
     Each holder of the Original Securities (other than certain specified
holders) who wishes to exchange the Original Securities for Exchange Securities
in the Exchange Offer will be required to represent that (i) it is not an
affiliate of the Operating Partnership, (ii) the Exchange Securities to be
received by it were acquired in the ordinary course of its business and (iii) at
the time of the Exchange Offer, it has no arrangement with any person to
participate in the distribution (within the meaning of the Securities Act) of
the Exchange Securities. In addition, in connection with any resales of Exchange
Securities, any broker-dealer who acquired the Security for its own account as a
result of market-making or other trading activities (a "Participating
Broker-Dealer") must deliver a prospectus meeting the requirements of the
Securities Act. The Commission has taken the position that Participating
Broker-Dealers may fulfill their prospectus delivery requirements with respect
to the Exchange Securities (other than a resale of an unsold allotment from the
original sale of the Original Securities) with this Prospectus, as it may be
amended or supplemented. Under the Registration Rights Agreement, the Operating
Partnership is required to allow Participating Broker-Dealers and other persons,
if any, subject to similar prospectus delivery requirements to use this
Prospectus in connection with the resale of the Exchange Securities for a period
of 180 days from the issuance of the Exchange Securities.
 
     Based upon interpretations by the staff of the Commission, the Operating
Partnership believes that Exchange Securities issued pursuant to the Exchange
Offer may be offered for resale, resold and otherwise transferred by a Holder
thereof (other than a Participating Broker-Dealer) without compliance with the
registration and prospectus delivery requirements of the Securities Act.
 
     The Operating Partnership will not receive any proceeds from any sale of
Exchange Securities by broker-dealers. Exchange Securities received by
Participating Broker-Dealers for their own account pursuant to the Exchange
Offer may be sold from time to time in one or more transactions in the
over-the-counter market, in negotiated transactions, through the writing of
options on the Exchange Securities or a combination of such methods of resale,
at market prices prevailing at the time of resale, at prices related to such
prevailing market prices or negotiated prices. Any such resale may be made
directly to purchasers or to or through brokers or dealers who may receive
compensation in the form of commissions or concessions from any such
broker-dealer for the purchasers of any such Exchange Securities. Any
Participating Broker-Dealer that resells Exchange Securities that were received
by it for its own account pursuant to the Exchange Offer and any broker or
dealer that participates in a distribution of such Exchange Securities may be
deemed to be an "underwriter" within the meaning of the Securities Act and any
profit on any such resale of Exchange Securities and any commission or
concessions received by any such persons may be deemed to be underwriting
compensation
 
                                       38
<PAGE>   41
 
under the Securities Act. The Letter of Transmittal states that, by
acknowledging that it will deliver and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning of the Securities Act.
 
     The Operating Partnership has agreed to pay all expenses incident to the
Exchange Offer other than commissions or concessions of any brokers or dealers
and will indemnify the Holders of the Securities (including any broker-dealers)
against certain liabilities, including liabilities under the Securities Act, as
set forth in the Registration Rights Agreement.
 
                      VALIDITY OF THE EXCHANGE SECURITIES
 
     The validity of the Exchange Securities will be passed upon for the
Operating Partnership by Willkie Farr & Gallagher, New York, New York.
 
                                    EXPERTS
 
   
     The audited financial statements and schedules of SPG Properties and the
Operating Partnership and the examined pro forma combined condensed financial
statements of Simon Property Group, Inc. as of and for the year ended December
31, 1997 incorporated by reference herein have been audited or examined by
Arthur Andersen LLP, independent public accountants, as indicated in their
reports with respect thereto and are incorporated by reference herein in
reliance upon the authority of said firm as experts in giving said reports.
    
 
   
     The audited financial statements of Corporate Property Investors, Inc. and
Corporate Realty Consultants, Inc. incorporated by reference herein have been
audited by Ernst & Young LLP, independent auditors, as indicated in their
reports with respect thereto and are incorporated by reference herein in
reliance upon the authority of said firm as experts in accounting and auditing.
    
 
                                       39
<PAGE>   42
 
   
                           
                                                     [SIMON PROPERTY GROUP LOGO]
                           SIMON PROPERTY GROUP, L.P.

    
 
     All tendered Original Securities, executed Letters of Transmittal, and
other related documents should be directed to the Exchange Agent. Requests for
assistance and for additional copies of the Prospectus, the Letter of
Transmittal and other related documents should be directed to the Exchange
Agent.
 
                               The Exchange Agent
                           for the Exchange Offer is
 
                            THE CHASE MANHATTAN BANK
 
                      By Mail, Hand or Overnight Courier:
 
                                55 Water Street
                            Room 234, North Building
                               New York, NY 10041
                           Attention: Carlos Esteves
 
                         Facsimile Transmission Number:
 
                                 (212) 638-7375
                               or (212) 344-9367
                        (For Eligible Institutions Only)
 
                             Confirm by Telephone:
 
                                 (212) 638-0828
 
                            Contact: Carlos Esteves
<PAGE>   43
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
   
     The Partnership Agreement of the Operating Partnership contains provisions
indemnifying its general partners' officers and directors against certain
liabilities. Such Partnership Agreement provides for indemnification of such
general partners and their officers and directors to the same extent
indemnification is provided to officers and directors of Simon Group in its
Charter, and limits the liability of such general partners and their officers
and directors to the Operating Partnership and its partners to the same extent
liability of officers and directors of Simon Group to the Simon Group and its
stockholders is limited under the Simon Group's Charter. In addition, Simon
Group's officers and directors are indemnified under Delaware law and Simon
Group's Charter. Simon Group's Charter requires Simon Group to indemnify its
directors and officers to the fullest extent permitted from time to time by the
laws of Delaware. Simon Group's By-Laws contain provisions which implement the
indemnification provisions of Simon Group's Charter.
    
 
   
     Section 145 of the Delaware General Corporation Law (the "DGCL") empowers a
Delaware corporation to indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative
(other than an action by or in the right of such corporation) by reason of the
fact that such person is or was a director, officer, employee or agent of such
corporation, or is or was serving at the request of such corporation as a
director, officer, employee or agent of another corporation or enterprise. A
corporation may, in advance of the final action of any civil, criminal,
administrative or investigative action, suit or proceeding, pay the expenses
(including attorneys' fees) incurred by any officer, director, employee or agent
in defending such action, provided that the director or officer undertakes to
repay such amount if it shall ultimately be determined that he or she is not
entitled to be indemnified by the corporation. A corporation may indemnify such
person against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by such person in
connection with such action, suit or proceeding if he or she acted in good faith
and in a manner he or she reasonably believed to be in or not opposed to the
best interests of the corporation, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe his or her conduct was unlawful.
    
 
   
     A Delaware corporation may indemnify officers and directors in an action by
or in the right of the corporation to procure a judgment in its favor under the
same conditions, except that no indemnification is permitted without judicial
approval if the officer or director is adjudged to be liable to the corporation.
Where an officer or director is successful on the merits or otherwise in the
defense of any action referred to above, the corporation must indemnify him or
her against the expenses (including attorneys' fees) which he or she actually
and reasonably incurred in connection therewith. The indemnification provided is
not deemed to be exclusive of any other rights to which an officer or director
may be entitled under any corporation's by-law, agreement, vote or otherwise.
    
 
   
     In accordance with Section 145 of the DGCL, and the By-Laws ("Simon Group's
By-Laws") and the Restated Certificate of Incorporation of Simon Property Group,
Inc. ("Simon Group") ("Simon Group's Charter") provide, that Simon Group shall
indemnify to the fullest extent permitted under and in accordance with the laws
of the State of Delaware any person who was or is a party or is threatened to be
made a party to any threatened, pending or completed action, suit or proceeding,
whether civil, criminal, administrative or investigative by reason of the fact
that he is or was a director or officer of Simon Group, or is or was serving at
the request of Simon Group, as a director, officer, trustee or in any other
capacity with another corporation, partnership, joint venture, trust or other
enterprise, against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by him in connection
with such action, suit or proceeding if he acted in good faith and in a manner
he reasonably believed to be in, or not opposed to, the best interests of Simon
Group, and, with respect to any criminal action or proceeding, had no reasonable
cause to believe his conduct was unlawful. The indemnification provided by Simon
Group's Charter and Simon Group's By-laws shall not be deemed exclusive of any
other rights to which any of those seeking
    
 
                                      II-1
<PAGE>   44
 
   
indemnification or advancement of expenses may be entitled under any other
contract or agreement between Simon Group, and any officer, director, employee
or agent of Simon Group. Expenses incurred in defending a civil or criminal
action, suit or proceeding shall (in the case of any action, suit or proceeding
against a director or officer of Simon Group) or may (in the case of any action,
suit or proceeding against an employee or agent) be paid by Simon Group, in
advance of the final disposition of such action, suit or proceeding as
authorized by the Board of Directors of Simon Group, upon receipt of an
undertaking by or on behalf of the indemnified person to repay such amount if it
shall ultimately be determined that he is not entitled to be indemnified by
Simon Group. Simon Group's Charter and Simon Group's By-laws provide that
neither the amendment or repeal of, nor the adoption of any provision
inconsistent with, the above-referenced provisions of Simon Group's Charter or
Simon Group's By-laws shall eliminate or reduce the effect of such provisions in
respect of any matter occurring before such amendment, repeal or adoption of an
inconsistent provision or in respect of any cause of action, suit or claim
relating to any such matter which would have given rise to a right of
indemnification or right to receive expenses pursuant to such provisions if any
such provision had not been so amended or repealed or if a provision
inconsistent therewith had not been so adopted. Simon Group's Charter also
provides that a director of Simon Group shall not be personally liable to Simon
Group or its stockholders, for monetary damages for breach of fiduciary duty as
a director, except for liability (i) for any breach of the director's duty of
loyalty to Simon Group, or its stockholders, (ii) for acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, (iii) under Section 174 of the DGCL or any amendment thereto or successor
provision thereto, or (iv) for any transaction from which the director derived
an improper personal benefit. If the DGCL is amended to authorize corporate
action further eliminating or limiting the personal liability of directors, then
the liability of a director of Simon Group shall be eliminated or limited to the
fullest extent permitted by the DGCL as so amended.
    
 
   
     Simon Group has entered (or will enter) into indemnification agreements
with each of its directors and officers. The indemnification agreements require,
among other things, that Simon Group indemnify its directors and officers to the
fullest extent permitted by law, and advance to the directors and officers all
related expenses, subject to reimbursement if it is subsequently determined that
indemnification is not permitted. Simon Group also must indemnify and advance
all expenses incurred by directors and officers seeking to enforce their rights
under the indemnification agreements, and cover each director and officer if
Simon Group obtains directors' and officers' liability insurance.
    
 
ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
   
     (a) Exhibits:
 
<TABLE>
<S>   <C>  <C>
 1     --  Purchase Agreement, dated as of June 16, 1998, by and among
           the Operating Partnership and the Initial Purchasers.*
 4.1   --  Indenture, dated as of November 26, 1996, by and among the
           Operating Partnership and The Chase Manhattan Bank, as
           trustee (incorporated by reference to the form of this
           document filed as Exhibit 4.1 to the Registration Statement
           on Form S-3 (Reg. No. 333-11491)).
 4.2   --  Supplemental Indenture, dated as of June 22, 1998, by and
           among the Operating Partnership and The Chase Manhattan
           Bank, as trustee, relating to the Securities.*
 4.3   --  Registration Rights Agreement, dated as of June 22, 1998, by
           and among the Operating Partnership and the Initial
           Purchasers.*
 4.4   --  Remarketing Agreement, dated as of June 22, 1998, by and
           among the Operating Partnership and Merrill Lynch, Pierce,
           Fenner & Smith Incorporated, as the remarketing dealer.*
 5.1   --  Opinion of Willkie Farr & Gallagher.
12.1   --  Statement Regarding Computation of Ratio of Earnings to
           Fixed Charges.*
23.1   --  Consent of Arthur Andersen LLP.
23.2   --  Consent of Ernst & Young LLP.
23.3   --  Consent of Willkie Farr & Gallagher (included in their
           opinion filed as Exhibit 5.1).
24     --  Powers of Attorney (included on signature pages).*
</TABLE>
    
 
                                      II-2
<PAGE>   45
   
<TABLE>
<S>   <C>  <C>
25     --  Statements on Form T-1 of Eligibility of Trustee.*
99.1   --  Form of Letter of Transmittal.
99.2   --  Form of Notice of Guaranteed Delivery.
99.3   --  Form of Letter to Clients.
99.4   --  Form of Letter to Nominees.
</TABLE>
    
 
- ---------------
   
* Previously filed.
    
 
     (b) Financial Statement Schedules:
 
     All schedules have been omitted because they are not applicable or not
required or the required information is included in the financial statements or
notes thereto.
 
ITEM 22.  UNDERTAKINGS.
 
     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of Registrants
pursuant to the provisions, described under Item 20 above, or otherwise, the
Registrant has been advised that in the opinion of the Securities and Exchange
Commission, such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the option of their counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
 
     The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4, 10(b), 11 or 13 of this Form, within one business day of receipt of such
request, and to send the incorporated documents by first class mail or other
equally prompt means. This includes information contained in documents filed
subsequent to the effective date of this Registration Statement through the date
of responding to the request.
 
     The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in this Registration Statement when it became effective.
 
                                      II-3
<PAGE>   46
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act the Registrant has duly
caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Indianapolis, State of
Indiana, on November 2, 1998.
    
 
   
                                          SIMON PROPERTY GROUP, L.P.
    
 
   
                                          By: SPG PROPERTIES, INC.,
    
                                            General Partner
 
   
                                          By:  /s/  David Simon
    
 
                                            ------------------------------------
   
                                            Name:  David Simon
    
   
                                            Title:  Chief Executive Officer
    
 
   
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated:
    
 
   
<TABLE>
<CAPTION>
                   SIGNATURE                                  TITLE                        DATE
                   ---------                                  -----                        ----
<C>                                               <S>                               <C>
 
                       *                          Co-Chairman of the Board of       November 2, 1998
- ------------------------------------------------    Directors
                 Herbert Simon
 
                /s/ DAVID SIMON                   Chief Executive Officer           November 2, 1998
- ------------------------------------------------
                  David Simon
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
                   Birch Bayh
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
            M. Denise DeBartolo York
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
               G. William Miller
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
               Fredrick W. Petri
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
              J. Albert Smith, Jr.
 
                       *                          Director                          November 2, 1998
- ------------------------------------------------
                 Philip J. Ward
 
              *By: /s/ DAVID SIMON
   ------------------------------------------
                  David Simon
                Attorney-in-Fact
</TABLE>
    
 
                                      II-4
<PAGE>   47
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT                              DESCRIPTION                           PAGE
- -------                              -----------                           ----
<S>     <C>  <C>                                                           <C>
 1       --  Purchase Agreement, dated as of June 16, 1998, by and among
             the Operating Partnership and the Initial Purchasers.*
 4.1     --  Indenture, dated as of November 26, 1996, by and among the
             Operating Partnership and The Chase Manhattan Bank, as
             trustee (incorporated by reference to the form of this
             document filed as Exhibit 4.1 to the Registration Statement
             on Form S-3 (Reg. No. 333-11491)).*
 4.2     --  Supplemental Indenture, dated as of June 22, 1998, by and
             among the Operating Partnership and The Chase Manhattan
             Bank, as trustee, relating to the Securities.*
 4.3     --  Registration Rights Agreement, dated as of June 22, 1998, by
             and among the Operating Partnership and the Initial
             Purchasers.*
 4.4     --  Remarketing Agreement, dated as of June 22, 1998, by and
             among the Operating Partnership and Merrill Lynch, Pierce,
             Fenner & Smith Incorporated, as the remarketing dealer.*
 5.1     --  Opinion of Willkie Farr & Gallagher.
12.1     --  Statement Regarding Computation of Ratio of Earnings to
             Fixed Charges.*
23.1     --  Consent of Arthur Andersen LLP.
23.2     --  Consent of Ernst & Young LLP.
23.3     --  Consent of Willkie Farr & Gallagher (included in their
             opinion filed as Exhibit 5.1).
24       --  Powers of Attorney (included on signature pages).*
25       --  Statements on Form T-1 of Eligibility of Trustee.*
99.1     --  Form of Letter of Transmittal.
99.2     --  Form of Notice of Guaranteed Delivery.
99.3     --  Form of Letter to Clients.
99.4     --  Form of Letter to Nominees.
</TABLE>
    
 
- ---------------
   
* Previously filed.
    

<PAGE>   1
   
                                                                     EXHIBIT 5.1
    

   
November 3, 1998
    


Simon Property Group, L.P.
National City Center
115 West Washington Street
Indianapolis, Indiana 46204


Re:  $375,000,000 principal amount of 6 5/8% Notes due 2003, $300,000,000
principal amount of 6 3/4% Notes due 2005, $200,000,000 principal amount of 7
3/8% Notes due 2018 and $200,000,000 principal amount of 7% MandatOry Par Put
Remarketed Securities(SM) ("MOPPRS(SM)") due 2028, of Simon Property Group, L.P.

Ladies and Gentlemen:

We are special counsel to Simon Property Group, L.P. (f/k/a Simon DeBartolo
Group, L.P.), a Delaware limited partnership (the "Operating Partnership"), and
have acted as such in connection with various legal matters relating to the
filing of a Registration Statement on Form S-4 (File No. 333-63645) (such
Registration Statement, as amended and supplemented to the date hereof, the
"Registration Statement"), under the Securities Act of 1933, as amended (the
"Securities Act"), covering $375,000,000 principal amount of 6 5/8% Notes due
2003 (the "Exchange 2003 Notes"), $300,000,000 principal amount of 6 3/4% Notes
due 2005 (the "Exchange 2005 Notes"), $200,000,000 principal amount of 7 3/8%
Notes due 2018 (the "Exchange 2018 Notes," and, together with the Exchange 2003
Notes and the Exchange 2005 Notes, the "Exchange Notes") and $200,000,000
principal amount of 7% MandatOry Par Put Remarketed Securities(SM)
("MOPPRS(SM)") due 2028 (the "Exchange MOPPRS," and, together with the Exchange
Notes, the "Exchange Securities") of the Operating Partnership, offered in
exchange for a like principal 
<PAGE>   2
   
Simon Property Group, L.P.
November 3, 1998
Page 2
    

amount of 6 5/8% Notes due 2003 (the "Original 2003 Notes"), 6 3/4% Notes due
2005 (the "Original 2005 Notes"), 7 3/8% Notes due 2018 (the "Original 2018
Notes," and, together with the Original 2003 Notes and the Original 2005 Notes,
the "Original Notes") and the 7% MOPPRS(SM) due 2028 (the "Original MOPPRS,"
and, together with the Original Notes, the "Original Securities"), respectively,
of the Operating Partnership.  The Original Securities were issued under, and
the Exchange Securities are to be issued under, the Indenture, dated as of
November 26, 1996, by and between the Operating Partnership and The Chase
Manhattan Bank, as Trustee (as amended and supplemented to date, the
"Indenture"). The exchange will be made pursuant to an exchange offer (the
"Exchange Offer") contemplated by the Registration Rights Agreement. Capitalized
terms used but not otherwise defined herein have the meanings ascribed to them
in the Registration Statement.

In so acting, we have examined copies of such records of the Operating
Partnership and such other certificates and documents as we have deemed relevant
and necessary for the opinions hereinafter set forth.  In such examination, we
have assumed the genuineness of all signatures, and the authenticity of all
documents submitted to us as originals and the conformity to authentic originals
of all documents submitted to us as certified or reproduced copies.  We have
also assumed the legal capacity of all persons executing such documents and the
truth and correctness of any representations or warranties therein contained.
As to various questions of fact material to such opinions, we have relied upon
certificates of officers of the Operating Partnership and of public officials.

Based upon the foregoing, we are of the opinion that:

   
     1. The Operating Partnership is duly formed and validly existing under the
        laws of the State of Delaware.
    

   
     2. The Exchange Securities have been duly authorized and, when executed,
        authenticated and delivered to the holders of the Original Securities in
        exchange for the Original Securities and assuming due authentication by
        the Trustee, will (x) constitute legal, valid and binding obligations of
        the Operating Partnership enforceable in accordance with their terms,
        except as (A) the enforceability thereof may be limited by bankruptcy,
        insolvency or similar laws 
    
<PAGE>   3
   
Simon Property Group, L.P.
November 3, 1998
Page 3
    

   
        affecting creditors' rights generally and except as enforcement thereof
        is subject to general principles of equity (regardless of whether
        enforcement is considered in a proceeding in equity or at law) and (B)
        rights of acceleration and the availability of equitable remedies may be
        limited by equitable principles of general applicability and (y) be
        entitled to the benefits of the Indenture.
    

   
     3. The Indenture has been duly authorized, executed and delivered by the
        Operating Partnership and, assuming due authorization, execution and
        delivery of the Indenture by the Trustee, constitutes the legal, valid
        and binding obligation of the Operating Partnership enforceable against
        the Operating Partnership in accordance with its terms, except as (A)
        the enforceability thereof may be limited by bankruptcy, insolvency or
        similar laws affecting creditors' rights generally and except as
        enforcement thereof is subject to general principles of equity
        (regardless of whether enforcement is considered in a proceeding in
        equity or at law) and (B) rights of acceleration and the availability of
        equitable remedies may be limited by equitable principles of general
        applicability.
    

This opinion is limited to the laws of the State of New York and the federal
laws of the United States of the type typically applicable to transactions
contemplated by the Exchange Offer, and we do not express any opinion with
respect to the laws of any other country, state or jurisdiction.

This opinion letter is limited to the matters stated herein and no opinion is
implied or may be inferred beyond the matters expressly stated. 

This opinion letter speaks only as of the date hereof and is limited to present
statutes, regulations and administrative and judicial interpretations.  We
undertake no responsibility to update or supplement this letter after the date
hereof.

We hereby consent to the filing of this letter as an exhibit to the Registration
Statement and to the reference to us in the Prospectus included as part of the
Registration Statement.  In giving such consents, we do not hereby admit that we
are in the category of persons whose consent is required under Section 7 of the
Securities Act.

                                               Very truly yours,


                                               /s/ Willkie Farr & Gallagher
                                               -------------------------------
                                                   Willkie Farr & Gallagher


<PAGE>   1
                                                           EXHIBIT 23.1

               CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

   
As independent public accountants, we hereby consent to the incorporation by
reference in this Prospectus of our reports dated February 17, 1998 included in
Simon DeBartolo Group, Inc.'s Form 10-K/A for the year ended December 31, 1997
and in Simon DeBartolo Group, L.P.'s Form 10-K/A for the year ended December 31,
1997, and to the incorporation by reference of our examination report dated
August 12, 1998, on the pro forma combined condensed financial statements of
Simon Property Group, Inc. and SPG Realty Consultants, Inc., as of and for the
year ended December 31, 1997, included in the Proxy Statement/Prospectus of
Simon DeBartolo Group, Inc., Corporate Property Investors, Inc. and Corporate
Realty Consultants, Inc., dated August 13, 1998, and to all references to our
Firm included in this Registration Statement.
    

                                        /s/ Arthur Andersen LLP
                                        ---------------------------------
                                            ARTHUR ANDERSEN LLP
                                        

   
Indianapolis, Indiana,
October 30, 1998
    
 
 

<PAGE>   1
                                                             Exhibit 23.2



                        CONSENT OF INDEPENDENT AUDITORS

   
We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Amendment No. 1 to Form S-4) and related Prospectus of
Simon Property Group, L.P. with respect to the registration of an Offer to
Exchange $1,000 in principal amount of 6 5/8% Notes due 2003, 6 3/4% Notes due
2005, 7 3/8% Notes due 2018 and 7% Mandatory Par Put Remarketed Securities due
2028 for each $1,000 in principal amount outstanding of like series of Notes and
to the incorporation by reference therein of our reports dated February 5, 1998
(except for the note, Commitments, Contingencies and Other Comments item (1), as
to which the date is February 19, 1998) relating to Corporate Property
Investors, Inc. and June 30, 1998 relating to Corporate Realty Consultants,
Inc., with respect to the consolidated financial statements of Corporate
Property Investors, Inc. and Corporate Realty Consultants, Inc. included in the
Proxy Statement of Simon Property Group, Inc. that is made part of the
Registration Statement (Form S-4 Nos. 333-61399 and 333-61399-01) and Prospectus
of Corporate Property Investors, Inc. and Corporate Realty Consultants, Inc. for
the year ended December 31, 1997, filed with the Securities and Exchange
Commission.
    


   
                                           /s/  ERNST & YOUNG LLP   
New York, New York
November 2, 1998
    

<PAGE>   1
 
   
                             LETTER OF TRANSMITTAL
    
 
                                      FOR
 
          OFFER TO EXCHANGE $1,000 IN PRINCIPAL AMOUNT OF 6 5/8% NOTES
    DUE 2003, 6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND 7% MANDATORY
  PAR PUT REMARKETED SECURITIES(SM) ("MOPPRS(SM)") DUE 2028 FOR EACH $1,000 IN
              PRINCIPAL AMOUNT OUTSTANDING OF LIKE SERIES OF NOTES
 
                                       OF
 
                           SIMON PROPERTY GROUP, L.P.
                           PURSUANT TO THE PROSPECTUS
   
                             DATED NOVEMBER 3, 1998
    
 
   
THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON DECEMBER 7,
          1998, UNLESS EXTENDED OR TERMINATED (THE "EXPIRATION DATE").
    
 
                 The Exchange Agent for the Exchange Offer is:
 
                            THE CHASE MANHATTAN BANK
 
<TABLE>
<S>                               <C>                                 <C>
         By Facsimile:                        By Mail:                           By Hand or
                                                                             Overnight Courier:
       (212) 638-7375 or              The Chase Manhattan Bank            The Chase Manhattan Bank
         (212) 344-9367                   55 Water Street                     55 Water Street
     Confirm by telephone:            Room 234, North Building            Room 234, North Building
         (212) 638-0828                  New York, NY 10041                  New York, NY 10041
    Contact: Carlos Esteves          Attention: Carlos Esteves           Attention: Carlos Esteves
</TABLE>
 
     DELIVERY OF THIS LETTER OF TRANSMITTAL (THE "LETTER OF TRANSMITTAL") TO AN
ADDRESS, OR TRANSMISSION VIA FACSIMILE TO A NUMBER, OTHER THAN AS SET FORTH
ABOVE, WILL NOT CONSTITUTE A VALID TENDER OF ORIGINAL SECURITIES (AS DEFINED
BELOW).
 
   
     The Instructions contained herein should be read carefully before this
Letter of Transmittal is completed and signed.
    
<PAGE>   2
 
   
     This Letter of Transmittal is to be used by registered holders ("Holders")
of 6 5/8% Notes due 2003 (the "Original 2003 Notes"), 6 3/4% Notes due 2005 (the
"Original 2005 Notes"), 7 3/8% Notes due 2018 (the "Original 2018 Notes," and,
together with the Original 2003 Notes and the Original 2005 Notes, the "Original
Notes") and 7% MOPPRSSM due 2028 (the "Original MOPPRS," and, together with the
Original Notes, the "Original Securities") if: (i) certificates representing
Original Securities are to be physically delivered to the Exchange Agent by such
Holders; (ii) tender of Original Securities is to be made by book-entry transfer
to the Exchange Agent's account at The Depositary Trust Company ("DTC" or the
"Book-Entry Transfer Facility") pursuant to the procedures set forth in the
Prospectus, dated November 3, 1998 (as the same may be amended or supplemented
from time to time, the "Prospectus") under the caption "The Exchange
Offer -- How to Tender" by any financial institution that is a participant in
DTC and whose name appears on a security position listing as the owner of
Original Securities or (iii) delivery of Original Securities is to be made
according to the guaranteed delivery procedures set forth in the Prospectus
under the caption "The Exchange Offer -- How to Tender", and, in each case,
instructions are not being transmitted through the DTC Automated Tender Program
("ATOP"). DELIVERY OF DOCUMENTS TO THE BOOK-ENTRY TRANSFER FACILITY IN
ACCORDANCE WITH SUCH BOOK-ENTRY TRANSFER FACILITY'S PROCEDURES DOES NOT
CONSTITUTE DELIVERY TO THE EXCHANGE AGENT.
    
 
     In order to properly complete this Letter of Transmittal, a Holder must (i)
complete the box entitled "Method of Delivery" by checking one of the three
boxes therein and supplying the appropriate information, (ii) complete the box
entitled "Description of Original Securities," (iii) if such Holder is a
Participating Broker-Dealer (as defined below) and wishes to receive additional
copies of the Prospectus for delivery in connection with resales of Exchange
Securities, check the applicable box, (iv) sign this Letter of Transmittal by
completing the box entitled "Please Sign Here", (v) if appropriate, check and
complete the boxes relating to the "Special Issuance Instructions" and "Special
Delivery Instructions," and (vi) complete the Substitute Form W-9. Each Holder
should carefully read the detailed Instructions below prior to completing this
Letter of Transmittal. See "The Exchange Offer -- How to Tender" in the
Prospectus.
 
     Holders of Original Securities that are tendering by book-entry transfer to
the Exchange Agent's account at DTC can execute the tender through ATOP, for
which the transaction will be eligible. DTC participants that are accepting the
Exchange Offer should transmit their acceptance to DTC, which will edit and
verify the acceptance and execute a book-entry delivery to the Exchange Agent's
account at DTC. DTC will then send an Agent's Message to the Exchange Agent for
its acceptance. Delivery of the Agent's Message by DTC will satisfy the terms of
the Exchange Offer as to execution and delivery of a Letter of Transmittal by
the participant identified in the Agent's Message. DTC participants may also
accept the Exchange Offer by submitting a Notice of Guaranteed Delivery through
ATOP.
 
     If Holders desire to tender Original Securities pursuant to the Exchange
Offer and (i) certificates representing such Original Securities are not lost
but are not immediately available, (ii) time will not permit this Letter of
Transmittal, certificates representing such Holder's Original Securities and all
other required documents to reach the Exchange Agent prior to the Expiration
Date or (iii) the procedures for book-entry transfer cannot be completed prior
to the Expiration Date, such Holders may effect a tender of such Original
Securities in accordance with the guaranteed delivery procedures set forth in
the Prospectus under the caption "The Exchange Offer -- How to Tender". See
Instruction 2 below.
 
     A Holder having Original Securities registered in the name of a broker,
dealer, commercial bank, trust company or other nominee must contact such
broker, dealer, commercial bank, trust company or other nominee if such Holder
desires to accept the Exchange Offer with respect to the Original Securities so
registered.
 
     THE EXCHANGE OFFER IS NOT BEING MADE TO (NOR WILL TENDERS OF ORIGINAL
SECURITIES BE ACCEPTED FROM OR ON BEHALF OF) HOLDERS IN ANY JURISDICTION IN
WHICH THE MAKING OR ACCEPTANCE OF THE EXCHANGE OFFER WOULD NOT BE IN COMPLIANCE
WITH THE LAWS OF SUCH JURISDICTION.
 
     All capitalized terms used herein and not defined herein shall have the
meaning ascribed to them in the Prospectus.
 
     Your bank or broker can assist you in completing this form. The
instructions included with this Letter of Transmittal must be followed.
Questions and requests for assistance or for additional copies of the
Prospectus, this Letter of Transmittal and the Notice of Guaranteed Delivery may
be directed to the Exchange Agent, whose address and telephone number appear on
the front cover of this Letter of Transmittal. See Instruction 11 below.
 
                                        2
<PAGE>   3
 
                               METHOD OF DELIVERY
 
[ ]  CHECK HERE IF CERTIFICATES FOR TENDERED ORIGINAL SECURITIES ARE BEING
     DELIVERED HEREWITH.
 
[ ]  CHECK HERE IF TENDERED ORIGINAL SECURITIES ARE BEING DELIVERED BY
     BOOK-ENTRY TRANSFER MADE TO THE ACCOUNT MAINTAINED BY THE EXCHANGE AGENT
     WITH A BOOK-ENTRY TRANSFER FACILITY AND COMPLETE THE FOLLOWING:
    Name of Tendering Institution:
    ----------------------------------------------------------------------------
    Account Number:
    -----------               Transaction Code Number:
    -----------
 
[ ]  CHECK HERE IF TENDERED ORIGINAL SECURITIES ARE BEING DELIVERED PURSUANT TO
     A NOTICE OF GUARANTEED DELIVERY PREVIOUSLY DELIVERED TO THE EXCHANGE AGENT
     PURSUANT TO INSTRUCTION 2 BELOW AND COMPLETE THE FOLLOWING:
    Name of Registered Holder(s):
    ----------------------------------------------------------------------------
    Window Ticket No. (if any):
    ----------------------------------------------------------------------------
    Date of Execution of Notice of Guaranteed Delivery:
    -----------------------------------------------------------------
    Name of Eligible Institution that Guaranteed Delivery:
    --------------------------------------------------------------
    If Delivered by Book-Entry Transfer (yes or no):
    ---------------------------------------------------------------------
    Account Number:
    -----------               Transaction Code Number:
    -----------
 
     List below the Original Securities to which this Letter of Transmittal
relates. If the space provided below is inadequate, list the certificate numbers
and principal amounts on a separately signed schedule and affix the schedule to
this Letter of Transmittal.
 
   
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------
                                          DESCRIPTION OF ORIGINAL SECURITIES
- -----------------------------------------------------------------------------------------------------------------------
                                                                             AGGREGATE
    NAME(S) AND ADDRESS(ES) OF HOLDER(S)           SERIES* AND            PRINCIPAL AMOUNT         PRINCIPAL AMOUNT
         (PLEASE FILL IN, IF BLANK)           CERTIFICATE NUMBERS**        REPRESENTED***              TENDERED
- -----------------------------------------------------------------------------------------------------------------------
<S>                                          <C>                      <C>                      <C>
- -----------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------
                                                 TOTAL PRINCIPAL
                                                AMOUNT OF ORIGINAL
                                                    SECURITIES
- -----------------------------------------------------------------------------------------------------------------------
    * Specify Original 2003 Notes, Original 2005 Notes, Original 2018 Notes or Original MOPPRS(SM).
   ** Need not be completed by Holders tendering by book-entry transfer (see below).
  *** Unless otherwise indicated in the column labeled "Principal Amount Tendered" and subject to the terms and
      conditions of the Prospectus, a Holder will be deemed to have tendered the entire aggregate principal amount
      represented by the Original Securities indicated in the column labeled "Aggregate Principal Amount Represented."
      See Instruction 3.
- -----------------------------------------------------------------------------------------------------------------------
</TABLE>
    
 
                                        3
<PAGE>   4
 
                    FOR PARTICIPATING BROKER-DEALERS ONLY:
 
[ ] CHECK HERE AND PROVIDE THE INFORMATION REQUESTED BELOW IF YOU ARE A
PARTICIPATING BROKER-DEALER (AS DEFINED BELOW) AND WISH TO RECEIVE 10 ADDITIONAL
COPIES OF THE PROSPECTUS AND, DURING THE 180-DAY PERIOD FOLLOWING THE
CONSUMMATION OF THE EXCHANGE OFFER, 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS
THERETO, AS WELL AS ANY NOTICES FROM THE OPERATING PARTNERSHIP TO SUSPEND AND
RESUME USE OF THE PROSPECTUS. BY TENDERING ITS ORIGINAL SECURITIES AND EXECUTING
THIS LETTER OF TRANSMITTAL, EACH PARTICIPATING BROKER-DEALER AGREES TO USE ITS
REASONABLE BEST EFFORTS TO NOTIFY THE OPERATING PARTNERSHIP OR THE EXCHANGE
AGENT WHEN IT HAS SOLD ALL OF ITS EXCHANGE SECURITIES. (IF NO PARTICIPATING
BROKER-DEALERS CHECK THIS BOX, OR IF ALL PARTICIPATING BROKER-DEALERS WHO HAVE
CHECKED THIS BOX SUBSEQUENTLY NOTIFY THE OPERATING PARTNERSHIP OR THE EXCHANGE
AGENT THAT ALL THEIR EXCHANGE SECURITIES HAVE BEEN SOLD, THE OPERATING
PARTNERSHIP WILL NOT BE REQUIRED TO MAINTAIN THE EFFECTIVENESS OF THE EXCHANGE
OFFER REGISTRATION STATEMENT OR TO UPDATE THE PROSPECTUS AND WILL NOT PROVIDE
ANY NOTICES TO ANY HOLDERS TO SUSPEND OR RESUME USE OF THE PROSPECTUS.)
 
     Provide the name of the individual who should receive, on behalf of the
Holder, additional copies of the Prospectus, and amendments and supplements
thereto, and any notices to suspend and resume use of the Prospectus:
 
Name:  -------------------------------------------------------------------------
 
Address:------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
Telephone No.:
           ---------------------------------------------------------------------
 
Facsimile No.:
           ---------------------------------------------------------------------
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
 
                                        4
<PAGE>   5
 
Ladies and Gentlemen:
 
   
     By execution hereof, the undersigned acknowledges receipt of the
Prospectus, dated November 3, 1998 (as the same may be amended or supplemented
from time to time, the "Prospectus" and, together with this Letter of
Transmittal, the "Exchange Offer"), of Simon Property Group, L.P. (f/k/a Simon
DeBartolo Group, L.P.) (the "Operating Partnership"), and this Letter of
Transmittal and instructions hereto, which together constitute the Operating
Partnership's offer to exchange $1,000 principal amount of 6 5/8% Notes due 2003
(the "Exchange 2003 Notes"), 6 3/4% Notes due 2005 (the "Exchange 2005 Notes"),
7 3/8% Notes due 2018 (the "Exchange 2018 Notes," and, together with the
Exchange 2003 Notes and the Exchange 2005 Notes, the "Exchange Notes") and 7%
MandatOry Par Put Remarketed Securities(SM) ("MOPPRS(SM)") due 2028 (the
"Exchange MOPPRS", and, together with the Exchange Notes, the "Exchange
Securities") of the Operating Partnership, which have been registered under the
Securities Act of 1933, as amended (the "Securities Act"), upon the terms and
subject to the conditions set forth in the Exchange Offer, for each $1,000
principal amount of 6 5/8% Notes due 2003 (the "Original 2003 Notes"), 6 3/4%
Notes due 2005 (the "Original 2005 Notes"), 7 3/8% Notes due 2018 (the "Original
2018 Notes," and, together with the Original 2003 Notes and the Original 2005
Notes, the "Original Notes") and 7% MOPPRS(SM) due 2028 (the "Original MOPPRS,"
and, together with the Original Notes, the "Original Securities"), respectively,
of the Operating Partnership.
    
 
     Upon the terms and subject to the conditions of the Exchange Offer, the
undersigned hereby tenders to the Operating Partnership the series and principal
amount of Original Securities indicated above. Subject to, and effective upon,
the acceptance for exchange of the Original Securities tendered herewith, the
undersigned hereby exchanges, assigns and transfers to, or upon the order of,
the Operating Partnership all right, title and interest in and to such Original
Securities. The undersigned hereby irrevocably constitutes and appoints the
Exchange Agent as the true and lawful agent and attorney-in-fact of the
undersigned (with full knowledge that the Exchange Agent also acts as the agent
of the Operating Partnership) with respect to such Original Securities with full
power of substitution (such power-of-attorney being deemed to be an irrevocable
power coupled with an interest) to (i) present such Original Securities and all
evidences of transfer and authenticity to, or transfer ownership of, such
Original Securities on the account books maintained by the Book-Entry Transfer
Facility to, or upon the order of, the Operating Partnership, (ii) present such
Original Securities for transfer of ownership on the books of the Operating
Partnership or the trustee under the Indenture (the "Trustee"), and (iii)
receive all benefits and otherwise exercise all rights of beneficial ownership
of such Original Securities, all in accordance with the terms of and conditions
of the Exchange Offer as described in the Prospectus.
 
     The undersigned represents and warrants that it has full power and
authority to tender, exchange, assign and transfer the Original Securities
tendered hereby and to acquire Exchange Securities issuable upon the exchange of
such tendered Original Securities, and that, when the same are accepted for
exchange, the Operating Partnership will acquire good and unencumbered title to
the tendered Original Securities, free and clear of all liens, restrictions,
charges and encumbrances and not subject to any adverse claim or right. The
undersigned also warrants that it will, upon request, execute and deliver any
additional documents deemed by the Exchange Agent or the Operating Partnership
to be necessary or desirable to complete the exchange, assignment and transfer
of the Original Securities tendered hereby or transfer ownership of such
Original Securities on the account books maintained by the Book-Entry Transfer
Facility.
 
     The Exchange Offer is subject to certain conditions as set forth in the
Prospectus under the caption "The Exchange Offer -- Conditions to the Exchange
Offer." The undersigned recognizes that as a result of these conditions (which
may be waived by the Operating Partnership, in whole or in part at any time or
from time to time in the sole discretion of the Operating Partnership), as more
particularly set forth in the Prospectus, the Operating Partnership may not be
required to exchange any of the Original Securities tendered hereby and, in such
event, the Original Securities not exchanged will be returned to the undersigned
at the address shown above.
 
     THE EXCHANGE OFFER IS NOT BEING MADE TO ANY BROKER-DEALER WHO PURCHASED
ORIGINAL SECURITIES DIRECTLY FROM THE OPERATING PARTNERSHIP FOR RESALE PURSUANT
TO RULE 144A UNDER THE SECURITIES ACT OR TO ANY PERSON THAT IS AN "AFFILIATE" OF
THE OPERATING PARTNERSHIP WITHIN THE MEANING OF RULE 405 UNDER THE SECURITIES
ACT. THE UNDERSIGNED UNDERSTANDS AND AGREES THAT THE OPERATING PARTNERSHIP
RESERVES THE RIGHT NOT TO ACCEPT TENDERED ORIGINAL SECURITIES FROM ANY TENDERING
HOLDER IF THE OPERATING PARTNERSHIP DETERMINES, IN ITS REASONABLE DISCRETION,
THAT SUCH ACCEPTANCE COULD RESULT IN A VIOLATION OF APPLICABLE SECURITIES LAWS.
 
     The undersigned, if the undersigned is a beneficial holder, represents
that, or, if the undersigned is a broker, dealer, commercial bank, trust company
or other nominee, represents that it has received representations from the
beneficial owners of the Original Securities (the "Beneficial Owner") stating
that, (i) the Exchange Securities to be acquired in connection with the Exchange
Offer by the Holder and each Beneficial Owner of the Original Securities are
being acquired by the Holder and each such Beneficial Owner in the ordinary
course of business of the Holder and each such Beneficial Owner, (ii) the Holder
and each such Beneficial Owner are not engaged in, do not intend to engage in,
and have no arrangement or understanding with any person to participate in, a
distribution (within the meaning of the
                                        5
<PAGE>   6
 
Securities Act) of the Exchange Securities, (iii) the Holder and each Beneficial
Owner acknowledge and agree that any person participating in the Exchange Offer
for the purpose of distributing the Exchange Securities must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with a secondary resale transaction of the Exchange Securities
acquired by such person and cannot rely on the position of the staff of the
Commission set forth in the no-action letters that are discussed in the
Prospectus under the caption "The Exchange Offer -- Terms of the Exchange" and
may only sell the Exchange Securities acquired by such person pursuant to a
registration statement containing the selling security holder information
required by Item 507 of Regulation S-K under the Securities Act, (iv) if the
Holder is a broker-dealer that acquired Original Securities as a result of
market-making or other trading activities, it will deliver a prospectus in
connection with any resale of Exchange Securities acquired in the Exchange Offer
(but by so acknowledging and by delivering a prospectus, the undersigned will
not be deemed to admit that it is an "underwriter" within the meaning of the
Securities Act) and (v) neither the Holder nor any such Beneficial Owner is an
"affiliate," as defined under Rule 405 of the Securities Act, of the Operating
Partnership or is a broker-dealer who purchased Original Securities directly
from the Operating Partnership for resale pursuant to Rule 144A under the
Securities Act.
 
     EACH BROKER-DEALER WHO ACQUIRED ORIGINAL SECURITIES FOR ITS OWN ACCOUNT AS
A RESULT OF MARKET-MAKING ACTIVITIES OR OTHER TRADING ACTIVITIES (A
"PARTICIPATING BROKER-DEALER"), BY TENDERING SUCH ORIGINAL SECURITIES AND
EXECUTING THIS LETTER OF TRANSMITTAL, AGREES THAT, UPON RECEIPT OF NOTICE FROM
THE OPERATING PARTNERSHIP OF THE OCCURRENCE OF ANY EVENT OR THE DISCOVERY OF ANY
FACT WHICH MAKES ANY STATEMENT CONTAINED OR INCORPORATED BY REFERENCE IN THE
PROSPECTUS UNTRUE IN ANY MATERIAL RESPECT OR WHICH CAUSES THE PROSPECTUS TO OMIT
TO STATE A MATERIAL FACT NECESSARY IN ORDER TO MAKE THE STATEMENTS CONTAINED OR
INCORPORATED BY REFERENCE THEREIN, IN LIGHT OF THE CIRCUMSTANCES UNDER WHICH
THEY WERE MADE, NOT MISLEADING OR OF THE OCCURRENCE OF CERTAIN OTHER EVENTS
SPECIFIED IN THE REGISTRATION RIGHTS AGREEMENT, SUCH PARTICIPATING BROKER-DEALER
WILL SUSPEND THE SALE OF EXCHANGE SECURITIES PURSUANT TO THE PROSPECTUS UNTIL
THE OPERATING PARTNERSHIP HAS AMENDED OR SUPPLEMENTED THE PROSPECTUS TO CORRECT
SUCH MISSTATEMENT OR OMISSION AND HAS FURNISHED COPIES OF THE AMENDED OR
SUPPLEMENTED PROSPECTUS TO THE PARTICIPATING BROKER-DEALER OR THE OPERATING
PARTNERSHIP HAS GIVEN NOTICE THAT THE SALE OF THE EXCHANGE SECURITIES MAY BE
RESUMED, AS THE CASE MAY BE.
 
   
     EACH PARTICIPATING BROKER-DEALER SHOULD CHECK THE BOX HEREIN UNDER THE
CAPTION "FOR PARTICIPATING BROKER-DEALERS ONLY" IN ORDER TO RECEIVE ADDITIONAL
COPIES OF THE PROSPECTUS, AND ANY AMENDMENTS AND SUPPLEMENTS THERETO, FOR USE IN
CONNECTION WITH RESALES OF THE EXCHANGE SECURITIES, AS WELL AS ANY NOTICES FROM
THE OPERATING PARTNERSHIP TO SUSPEND AND RESUME USE OF THE PROSPECTUS. BY
TENDERING ITS ORIGINAL SECURITIES AND EXECUTING THIS LETTER OF TRANSMITTAL, EACH
PARTICIPATING BROKER-DEALER AGREES TO USE ITS REASONABLE BEST EFFORTS TO NOTIFY
THE OPERATING PARTNERSHIP OR THE EXCHANGE AGENT WHEN IT HAS SOLD ALL OF ITS
EXCHANGE SECURITIES. IF NO PARTICIPATING BROKER-DEALERS CHECK SUCH BOX, OR IF
ALL PARTICIPATING BROKER-DEALERS WHO HAVE CHECKED SUCH BOX SUBSEQUENTLY NOTIFY
THE OPERATING PARTNERSHIP OR THE EXCHANGE AGENT THAT ALL THEIR EXCHANGE
SECURITIES HAVE BEEN SOLD, THE OPERATING PARTNERSHIP WILL NOT BE REQUIRED TO
MAINTAIN THE EFFECTIVENESS OF THE EXCHANGE OFFER REGISTRATION STATEMENT OR TO
UPDATE THE PROSPECTUS AND WILL NOT PROVIDE ANY HOLDERS WITH ANY NOTICES TO
SUSPEND OR RESUME USE OF THE PROSPECTUS.
    
 
     The undersigned understands that tenders of the Original Securities
pursuant to any one of the procedures described under "The Exchange Offer -- How
to Tender" in the Prospectus and in the instructions hereto will constitute a
binding agreement between the undersigned and the Operating Partnership in
accordance with the terms and subject to the conditions of the Exchange Offer.
All authority herein conferred or agreed to be conferred by this Letter of
Transmittal and every obligation of the undersigned hereunder shall be binding
upon the heirs, legal representatives, successors and assigns, executors,
administrators and trustees in bankruptcy of the undersigned and shall survive
the death or incapacity of the undersigned. Tendered Original Securities may be
withdrawn at any time prior to the Expiration Date in accordance with the terms
of the Exchange Offer.
 
     The undersigned also understands and acknowledges that the Operating
Partnership reserves the right in its sole discretion to purchase or make offers
for any Original Securities that remain outstanding subsequent to the Expiration
Date in the open market, in privately negotiated transactions, through
subsequent exchange offers or otherwise. The terms of any such purchases or
offers could differ from the terms of the Exchange Offer.
                                        6
<PAGE>   7
 
     The undersigned understands that the delivery and surrender of the Original
Securities is not effective, and the risk of loss of the Original Securities
does not pass to the Exchange Agent, until receipt by the Exchange Agent of this
Letter of Transmittal, or a manually signed facsimile hereof, properly completed
and duly executed, with any required signature guarantees, together with all
accompanying evidences of authority and any other required documents in form
satisfactory to the Operating Partnership. All questions as to form of all
documents and the validity (including time of receipt) and acceptance of tenders
and withdrawals of Original Securities will be determined by the Operating
Partnership, in its sole discretion, which determination shall be final and
binding.
 
     Unless otherwise indicated herein in the box entitled "Special Issuance
Instructions," the undersigned hereby requests that any Original Securities
representing principal amounts not tendered or not accepted for exchange be
issued in the name(s) of the undersigned and that Exchange Securities be issued
in the name(s) of the undersigned (or, in the case of Original Securities
delivered by book-entry transfer, by credit to the account at the Book-Entry
Transfer Facility). Similarly, unless otherwise indicated herein in the box
entitled "Special Delivery Instructions", the undersigned hereby requests that
any Original Securities representing principal amounts not tendered or not
accepted for exchange and certificates for Exchange Securities be delivered to
the undersigned at the address(es) shown above. In the event that the "Special
Issuance Instructions" box or the "Special Delivery Instructions" box is, or
both are, completed, the undersigned hereby requests that any Original
Securities representing principal amounts not tendered or not accepted for
exchange be issued in the name(s) of, certificates for such Original Securities
be delivered to, and certificates for Exchange Securities be issued in the
name(s) of, and be delivered to, the person(s) at the address(es) so indicated,
as applicable. The undersigned recognizes that the Operating Partnership has no
obligation pursuant to the "Special Issuance Instructions" box or "Special
Delivery Instructions" box to transfer any Original Securities from the name of
the registered Holder(s) thereof if the Operating Partnership does not accept
for exchange any of the principal amount of such Original Securities so
tendered.
 
                                        7
<PAGE>   8
 
                                PLEASE SIGN HERE
 
             (TO BE COMPLETED BY ALL HOLDERS OF ORIGINAL SECURITIES
    REGARDLESS OF WHETHER ORIGINAL SECURITIES ARE BEING PHYSICALLY DELIVERED
                                   HEREWITH)
 
     This Letter of Transmittal must be signed by the Holder(s) of Original
Securities exactly as their name(s) appear(s) on certificate(s) for Original
Securities or, if delivered by a participant in the Book-Entry Transfer
Facility, exactly as such participant's name appears on a security position
listing as the owner of Original Securities, or by person(s) authorized to
become Holder(s) by endorsements and documents transmitted with this Letter of
Transmittal. If signature is by a trustee, executor, administrator, guardian,
attorney-in-fact, officer or other person acting in a fiduciary or
representative capacity, such person must set forth his or her full title below
under "Capacity" and submit evidence satisfactory to the Operating Partnership
of such person's authority to so act. See Instruction 4 below.
 
     If the signature appearing below is not of the record holder(s) of the
Original Securities, then the record holder(s) must sign a valid bond power.
 
X
- --------------------------------------------------------------------------------
 
X
- --------------------------------------------------------------------------------
          SIGNATURE(S) OF REGISTERED HOLDER(S) OR AUTHORIZED SIGNATORY
 
Date:
- ------------------------------, 1998
 
Name(s):
- --------------------------------------------------------------------------------
                                 (PLEASE PRINT)
 
Capacity:
- --------------------------------------------------------------------------------
 
Address:
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
                              (INCLUDING ZIP CODE)
 
Area Code and Telephone No.:
- --------------------------------------------------------------------------------
 
                   PLEASE COMPLETE SUBSTITUTE FORM W-9 HEREIN
 
            MEDALLION SIGNATURE GUARANTEE (SEE INSTRUCTION 4 BELOW)
        Certain Signatures Must Be Guaranteed by an Eligible Institution
 
- --------------------------------------------------------------------------------
             (NAME OF ELIGIBLE INSTITUTION GUARANTEEING SIGNATURES)
 
- --------------------------------------------------------------------------------
  (ADDRESS (INCLUDING ZIP CODE) AND TELEPHONE NUMBER (INCLUDING AREA CODE) OF
                                     FIRM)
 
- --------------------------------------------------------------------------------
                             (AUTHORIZED SIGNATURE)
 
- --------------------------------------------------------------------------------
                                 (PRINTED NAME)
 
- --------------------------------------------------------------------------------
                                    (TITLE)
Dated:
- ------------------------------ , 1998
 
                                        8
<PAGE>   9
 
          ------------------------------------------------------------
 
                         SPECIAL ISSUANCE INSTRUCTIONS
                        (SEE INSTRUCTIONS 3, 4, 5 AND 7)
 
        To be completed ONLY if certificates for Original Securities in a
   principal amount not tendered or not accepted for exchange are to be
   issued in the name of, or certificates for Exchange Securities are to be
   issued to the order of, someone other than the person or persons whose
   signature(s) appear(s) within this Letter of Transmittal.
 
   Issue: Original Securities
         Exchange Securities
         (check as applicable)
 
   Name:
   ----------------------------------------------------
                                    (PLEASE PRINT)
 
   Address:
   --------------------------------------------------
 
          ------------------------------------------------------------
                                   (ZIP CODE)
 
          ------------------------------------------------------------
                 (TAX IDENTIFICATION OR SOCIAL SECURITY NUMBER)
                        (SEE SUBSTITUTE FORM W-9 HEREIN)
 
   Credit Original Securities not exchanged and delivered by book entry
   transfer to the Book Entry Transfer Facility account set below:
 
          ------------------------------------------------------------
                 (BOOK ENTRY TRANSFER FACILITY ACCOUNT NUMBER)
 
   Credit Exchange Securities to the Book Entry Transfer Facility account set
   below:
 
          ------------------------------------------------------------
                 (BOOK ENTRY TRANSFER FACILITY ACCOUNT NUMBER)
 
          ------------------------------------------------------------
          ------------------------------------------------------------
 
                         SPECIAL DELIVERY INSTRUCTIONS
                           (SEE INSTRUCTIONS 4 AND 5)
 
        To be completed ONLY if certificates for Original Securities in a
   principal amount not accepted for exchange or certificates for Exchange
   Securities are to be sent to someone other than the person or persons
   whose signature(s) appear(s) within this Letter of Transmittal or to an
   address different from that shown in the box entitled "Description of
   Original Securities" within the Letter of Transmittal.
 
   Deliver: Original Securities
            Exchange Securities
            (check as applicable)
 
   Name:
   ----------------------------------------------------
                                    (PLEASE PRINT)
 
   Address:
   --------------------------------------------------
 
          ------------------------------------------------------------
                                   (ZIP CODE)
 
          ------------------------------------------------------------
 
                                        9
<PAGE>   10
 
                                  INSTRUCTIONS
 
         FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER
 
1.  DELIVERY OF THIS LETTER OF TRANSMITTAL AND CERTIFICATES FOR ORIGINAL
    SECURITIES OR BOOK-ENTRY CONFIRMATIONS; WITHDRAWAL OF TENDERS.
 
     To tender Original Securities in the Exchange Offer, physical delivery of
certificates for Original Securities or confirmation of a book-entry transfer
into the Exchange Agent's account with a Book-Entry Transfer Facility of
Original Securities tendered electronically, as well as a properly completed and
duly executed copy or manually signed facsimile of this Letter of Transmittal,
or in the case of a book-entry transfer, an Agent's Message, and any other
documents required by this Letter of Transmittal, must be received by the
Exchange Agent at its address set forth herein prior to the Expiration Date.
Tenders of Original Securities in the Exchange Offer may be made prior to the
Expiration Date in the manner described in the preceding sentence and otherwise
in compliance with this Letter of Transmittal. THE METHOD OF DELIVERY OF THIS
LETTER OF TRANSMITTAL, CERTIFICATES FOR ORIGINAL SECURITIES AND ALL OTHER
REQUIRED DOCUMENTS TO THE EXCHANGE AGENT, INCLUDING DELIVERY THROUGH DTC AND ANY
ACCEPTANCE OF AN AGENT'S MESSAGE TRANSMITTED THROUGH ATOP, IS AT THE ELECTION
AND RISK OF THE HOLDER TENDERING ORIGINAL SECURITIES. IF SUCH DELIVERY IS MADE
BY MAIL, IT IS SUGGESTED THAT THE HOLDER USE PROPERLY INSURED, REGISTERED MAIL
WITH RETURN RECEIPT REQUESTED AND THAT SUFFICIENT TIME SHOULD BE ALLOWED TO
ASSURE TIMELY DELIVERY. NO ALTERNATIVE, CONDITIONAL OR CONTINGENT TENDERS OF
ORIGINAL SECURITIES WILL BE ACCEPTED. A tender will be deemed to have been
received as of the date when the tendering Holder's properly completed and duly
signed Letter of Transmittal accompanied by the Original Securities (or
book-entry confirmation) is received by the Exchange Agent. THIS LETTER OF
TRANSMITTAL, CERTIFICATES FOR THE ORIGINAL SECURITIES AND ANY OTHER REQUIRED
DOCUMENTS SHOULD BE SENT ONLY TO THE EXCHANGE AGENT, NOT TO THE OPERATING
PARTNERSHIP, THE TRUSTEE OR DTC.
 
     Original Securities tendered pursuant to the Exchange Offer may be
withdrawn at any time prior to the Expiration Date. In order to be valid, notice
of withdrawal of tendered Original Securities must comply with the requirements
set forth in the Prospectus under the caption "The Exchange Offer -- Withdrawal
Rights."
 
2.  GUARANTEED DELIVERY PROCEDURES.
 
     If Holders desire to tender Original Securities pursuant to the Exchange
Offer and (i) certificates representing such Original Securities are not lost
but are not immediately available, (ii) time will not permit this Letter of
Transmittal, certificates representing such Holder's Original Securities and all
other required documents to reach the Exchange Agent prior to the Expiration
Date or (iii) the procedures for book-entry transfer cannot be completed prior
to the Expiration Date, such Holders may effect a tender of Original Securities
in accordance with the guaranteed delivery procedures set forth in the
Prospectus under the caption "The Exchange Offer -- How to Tender."
 
          Pursuant to the guaranteed delivery procedures:
 
          (i) such tender must be made by or through an Eligible Institution;
 
          (ii) prior to the Expiration Date, the Exchange Agent must have
     received from such Eligible Institution, at one of the addresses set forth
     on the cover of this Letter of Transmittal, a properly completed and
     validly executed Notice of Guaranteed Delivery (by manually signed
     facsimile transmission, mail or hand delivery) in substantially the form
     provided with the Prospectus, setting forth the name(s) and address(es) of
     the registered Holder(s) and the series and principal amount of Original
     Securities being tendered and stating that the tender is being made thereby
     and guaranteeing that, within three New York Stock Exchange ("NYSE")
     trading days from the date of the Notice of Guaranteed Delivery, the Letter
     of Transmittal (or a manually signed facsimile thereof), properly completed
     and duly executed, or, in the case of a book-entry transfer, an Agent's
     Message, together with certificates representing the Original Securities
     (or confirmation of book-entry transfer of such Original Securities into
     the Exchange Agent's account at the Book-Entry Transfer Facility), and any
     other documents required by this Letter of Transmittal and the instructions
     thereto, will be deposited by such Eligible Institution with the Exchange
     Agent; and
 
          (iii) the Exchange Agent must have received this Letter of Transmittal
     (or a manually signed facsimile thereof), properly completed and validly
     executed with any required signature guarantees or, in the case of a book-
     entry transfer, an Agent's Message, together with certificates for all
     Original Securities in proper form for transfer (or a Book-Entry
     Confirmation with respect to all tendered Original Securities), and any
     other required documents within three NYSE trading days after the date of
     such Notice of Guaranteed Delivery.
 
                                       10
<PAGE>   11
 
3.  PARTIAL TENDERS.
 
     If less than the entire principal amount of any Original Securities
evidenced by a submitted certificate is tendered, the tendering Holder must fill
in the principal amount tendered in the last column of the box entitled
"Description of Original Securities" herein. The entire principal amount
represented by the certificates for all Original Securities delivered to the
Exchange Agent will be deemed to have been tendered, unless otherwise indicated.
The entire principal amount of all Original Securities not tendered or not
accepted for exchange will be sent (or, if tendered by book-entry transfer,
returned by credit to the account at the Book-Entry Transfer Facility designated
herein) to the Holder unless otherwise provided in the "Special Issuance
Instructions" or "Special Delivery Instructions" boxes of this Letter of
Transmittal.
 
4.  SIGNATURES ON THIS LETTER OF TRANSMITTAL, BOND POWERS AND ENDORSEMENTS;
    GUARANTEE OF SIGNATURES.
 
     If this Letter of Transmittal is signed by the Holder(s) of the Original
Securities tendered hereby, the signature(s) must correspond with the name(s) as
written on the face of the certificate(s) without alteration, enlargement or any
change whatsoever. If this Letter of Transmittal is signed by a participant in
the Book-Entry Transfer Facility whose name is shown as the owner of the
Original Securities tendered hereby, the signature must correspond with the name
shown on the security position listing as the owner of the Original Securities.
 
     If any of the Original Securities tendered hereby are registered in the
name of two or more Holders, all such Holders must sign this Letter of
Transmittal. If any tendered Original Securities are registered in different
names on several certificates, it will be necessary to complete, sign and submit
as many separate copies of this Letter of Transmittal and any necessary
accompanying documents as there are different names in which certificates are
held.
 
     If this Letter of Transmittal or any certificates for Original Securities
or bond powers are signed by trustees, executors, administrators, guardians,
attorneys-in-fact, officers of corporations or others acting in a fiduciary or
representative capacity, such persons should so indicate when signing, and
proper evidence satisfactory to the Operating Partnership of their authority so
to act must be submitted with this Letter of Transmittal.
 
     IF THIS LETTER OF TRANSMITTAL IS EXECUTED BY A PERSON OR ENTITY WHO IS NOT
THE REGISTERED HOLDER, THEN THE REGISTERED HOLDER MUST SIGN A VALID BOND POWER,
WITH THE SIGNATURE OF SUCH REGISTERED HOLDER GUARANTEED BY A PARTICIPANT IN A
RECOGNIZED MEDALLION SIGNATURE PROGRAM (A "MEDALLION SIGNATURE GUARANTOR").
 
     No signature guarantee is required if (i) this Letter of Transmittal is
signed by the registered Holder(s) of the Original Securities tendered herewith
(or by a participant in the Book-Entry Transfer Facility whose name appears on a
security position listing as the owner of Original Securities) and certificates
for Exchange Securities or for any Original Securities for principal amounts not
tendered or not accepted for exchange are to be issued, directly to such
Holder(s) or, if tendered by a participant in the Book-Entry Transfer Facility,
any Original Securities for principal amounts not tendered or not accepted for
exchange are to be credited to such participant's account at the Book-Entry
Transfer Facility and neither the "Special Issuance Instructions" box nor the
"Special Delivery Instructions" box of this Letter of Transmittal has been
completed or (ii) such Original Securities are tendered for the account of an
Eligible Institution. IN ALL OTHER CASES, ALL SIGNATURES ON LETTERS OF
TRANSMITTAL ACCOMPANYING ORIGINAL SECURITIES MUST BE GUARANTEED BY A MEDALLION
SIGNATURE GUARANTOR. In all such other cases (including if this Letter of
Transmittal is not signed by the Holder), the Holder must either properly
endorse the certificates for Original Securities tendered or transmit a separate
properly completed bond power with this Letter of Transmittal (in either case,
executed exactly as the name(s) of the registered Holder(s) appear(s) on such
Original Securities, and, with respect to a participant in a Book-Entry Transfer
Facility whose name appears on a security position listing as the owner of
Original Securities, exactly as the name(s) of the participant(s) appear(s) on
such security position listing), with the signature on the endorsement or bond
power guaranteed by a Medallion Signature Guarantor, unless such certificates or
bond powers are executed by an Eligible Institution.
 
     Endorsements on certificates for Original Securities and signatures on bond
powers provided in accordance with this Instruction 4 by registered Holders not
executing this Letter of Transmittal must be guaranteed by a Medallion Signature
Guarantor.
 
5.  SPECIAL ISSUANCE AND SPECIAL DELIVERY INSTRUCTIONS.
 
     Tendering Holders should indicate in the applicable box or boxes the name
and address to which Original Securities for principal amounts not tendered or
not accepted for exchange or certificates for Exchange Securities, if
applicable, are to be sent or issued, if different from the name and address of
the Holder signing this Letter of Transmittal. In the case of payment to a
different name, the taxpayer identification or social security number of the
person named must also be indicated. If no instructions are given, Original
Securities not tendered or not accepted for exchange will be returned, and
certificates for Exchange Securities will be sent, to the Holder of the Original
Securities tendered.
 
                                       11
<PAGE>   12
 
6.  TAXPAYER IDENTIFICATION NUMBER.
 
     Each tendering Holder is required to provide the Exchange Agent with the
Holder's social security or Federal employer identification number, on
Substitute Form W-9, which is provided under "Important Tax Information" below,
or alternatively, to establish another basis for exemption from backup
withholding. A Holder must cross out item (2) in the Certification box in Part
III on Substitute Form W-9 if such Holder is subject to backup withholding.
Failure to provide the information on the form may subject such Holder to 31%
Federal backup withholding tax on any payment made to the Holder with respect to
the Exchange Offer. The box in Part I of the form should be checked if the
tendering or consenting Holder has not been issued a Taxpayer Identification
Number ("TIN") and has either applied for a TIN or intends to apply for a TIN in
the near future. If the box in Part I is checked the Holder should also sign the
attached Certification of Awaiting Taxpayer Identification Number. If the
Exchange Agent is not provided with a TIN within 60 days thereafter, the
Exchange Agent will withhold 31% on all such payments of the Exchange Securities
until a TIN is provided to the Exchange Agent.
 
7.  TRANSFER TAXES.
 
     The Operating Partnership will pay all transfer taxes applicable to the
exchange and transfer of Original Securities pursuant to the Exchange Offer,
except if (i) deliveries of certificates for Original Securities for principal
amounts not tendered or not accepted for exchange are registered or issued in
the name of any person other than the Holder of Original Securities tendered
thereby, (ii) tendered certificates are registered in the name of any person
other than the person signing this Letter of Transmittal or (iii) a transfer tax
is imposed for any reason other than the exchange of Original Securities
pursuant to the Exchange Offer. If satisfactory evidence of payment of such
taxes or exemption therefrom is not submitted herewith, the amount of such
transfer taxes will be billed directly to such tendering Holder.
 
8.  IRREGULARITIES.
 
     All questions as to the form of all documents and the validity (including
time of receipt) and acceptance of all tenders and withdrawals of Original
Securities will be determined by the Operating Partnership, in its sole
discretion, which determination shall be final and binding. Alternative,
conditional or contingent tenders of Original Securities will not be considered
valid. The Operating Partnership reserves the absolute right to reject any and
all tenders of Original Securities that are not in proper form or the acceptance
of which, in the Operating Partnership's opinion, would be unlawful. The
Operating Partnership also reserves the right to waive any of the conditions of
the Exchange Offer or any defect or irregularities in tenders of any particular
holder whether or not similar defects or irregularities are waived in the case
of other holders. The Operating Partnership's interpretations of the terms and
conditions of the Exchange Offer (including the instructions in this Letter of
Transmittal) will be final and binding. Any defect or irregularity in connection
with tenders of Original Securities must be cured within such time as the
Operating Partnership determines, unless waived by the Operating Partnership.
Tenders of Original Securities shall not be deemed to have been made until all
defects or irregularities have been waived by the Operating Partnership or
cured. A defective tender (which defect is not waived by the Operating
Partnership or cured by the Holder) will not constitute a valid tender of
Original Securities and will not entitle the Holder to Exchange Securities. None
of the Operating Partnership, the Trustee, the Exchange Agent or any other
person will be under any duty to give notice of any defect or irregularity in
any tender or withdrawal of any Original Securities, or incur any liability to
Holders for failure to give any such notice.
 
9.  WAIVER OF CONDITIONS.
 
     The Operating Partnership reserves the right, in its sole discretion, to
amend or waive, in whole or in part and at any time or from time to time, any of
the conditions to the Exchange Offer.
 
10.  MUTILATED, LOST, STOLEN OR DESTROYED CERTIFICATES FOR ORIGINAL SECURITIES.
 
     Any Holder whose certificates for Original Securities have been mutilated,
lost, stolen or destroyed should write to or telephone the Trustee at the
address or telephone number set forth on the front cover of this Letter of
Transmittal for the Exchange Agent.
 
11.  REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES.
 
     Questions relating to the procedure for tendering Original Securities and
requests for assistance or additional copies of the Prospectus, this Letter of
Transmittal, the Notice of Guaranteed Delivery or other documents may be
directed to the Exchange Agent, whose address and telephone number appear above.
 
                                       12
<PAGE>   13
 
                           IMPORTANT TAX INFORMATION
 
     Under federal income tax laws, a Holder who tenders Original Securities
prior to receipt of the Exchange Securities is required to provide the Exchange
Agent with such Holder's correct TIN on the Substitute Form W-9 below or
otherwise establish a basis for exemption from backup withholding. If such
Holder is an individual, the TIN is his or her social security number. If the
Exchange Agent is not provided with the correct TIN, a $50 penalty may be
imposed by the Internal Revenue Service ("IRS") and payments, including any
Exchange Securities, made to such Holder with respect to Original Securities
exchanged pursuant to the Exchange Offer may be subject to backup withholding.
 
     Certain Holders (including, among others, all corporations and certain
foreign persons) are not subject to these backup withholding and reporting
requirements. Exempt Holders should indicate their exempt status on the
Substitute Form W-9. A foreign person may qualify as an exempt recipient by
submitting to the Exchange Agent a properly completed IRS Form W-8, signed under
penalties of perjury, attesting to that Holder's exempt status. A Form W-8 can
be obtained from the Exchange Agent. See the enclosed "Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9" for
additional instructions. Holders are urged to consult their own tax advisors to
determine whether they are exempt.
 
     If backup withholding applies, the Exchange Agent is required to withhold
31% of any payments made to the Holder or other payee. Backup withholding is not
an additional Federal income tax. Rather, the Federal income tax liability of
persons subject to backup withholding will be reduced by the amount of tax
withheld. If withholding results in an overpayment of taxes, a refund may be
obtained from the IRS.
 
PURPOSE OF SUBSTITUTE FORM W-9
 
     To prevent backup withholding on payments, including any Exchange
Securities, made with respect to Original Securities exchanged pursuant to the
Exchange Offer, the Holder is required to provide the Exchange Agent with (i)
the Holder's correct TIN by completing the form below, certifying that the TIN
provided on the Substitute Form W-9 is correct (or that such Holder is awaiting
a TIN) and that (A) such Holder is exempt from backup withholding, (B) the
Holder has not been notified by the IRS that the Holder is subject to backup
withholding as a result of failure to report all interest or dividends or (C)
the IRS has notified the Holder that the Holder is no longer subject to backup
withholding and (ii) if applicable, an adequate basis for exemption.
 
WHAT NUMBER TO GIVE THE EXCHANGE AGENT
 
     The Holder is required to give the Exchange Agent the TIN (e.g., social
security number or employer identification number) of the registered Holder. If
the Original Securities are held in more than one name or are held not in the
name of the actual owner, consult the enclosed "Guidelines for Certification of
Taxpayer Identification Number on Substitute Form W-9" for additional guidance
on which number to report.
 
                                       13
<PAGE>   14
 
                              SUBSTITUTE FORM W-9
 
          REQUEST FOR TAXPAYER IDENTIFICATION NUMBER AND CERTIFICATION
 
                    PAYOR'S NAME: SIMON PROPERTY GROUP, L.P.
 
<TABLE>
<S>                                                           <C>
- ------------------------------------------------------------------------------------------------
 PAYEE INFORMATION
 (Please print or type)
 Individual or business name (if joint account, list first and circle the name of person or
 entity whose number you furnish in Part 1 below):
- ------------------------------------------------------------------------------------------------
 Check appropriate box:    [ ] Individual/Sole proprietor    [ ] Corporation    [
 ] Partnership    [ ] Other
 -----------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------
 Address (number, street, and apt. or suite no.):
- ------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------
 City, state, and ZIP code:
- ------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------
 PART I TAXPAYER IDENTIFICATION NUMBER ("TIN")                 PART II PAYEES EXEMPT FROM BACKUP
 Enter your TIN below. For individuals, this is your social    WITHHOLDING
 security number. For other entities, it is your employer      Check box (See page 2 of the
 identification number. Refer to the chart on page 1 of the    Guidelines for further
 Guidelines for Certification of Taxpayer Identification       clarification. Even if you are
 Number on Substitute Form W-9 (the "Guidelines") for          exempt from backup withholding,
 further clarification. If you do not have a TIN, see          you should still complete and
 instructions on how to obtain a TIN on page 2 of the          sign the certification below):
 Guidelines, check the appropriate box below indicating that   [ ] EXEMPT
 you have applied for a TIN and, in addition to the Part III
 Certification, sign the attached Certification of Awaiting
 Taxpayer Identification Number.
 Social security number:
 
       --    --
 
 Applied For [ ]
 
 Employer identification number:
 
     --
- ------------------------------------------------------------------------------------------------
 
 PART III CERTIFICATION
 Certification Instructions: You must cross out item 2 below if you have been notified by the
 Internal Revenue Service (the "IRS") that you are currently subject to backup withholding
 because of underreporting interest or dividends on your tax return (See page 2 of the
 Guidelines for further clarification).
 Under penalties of perjury, I certify that:
 1. The number shown on this form is my correct taxpayer identification number (or I am waiting
    for a number to be issued to me), and
 2. I am not subject to backup withholding because: (a) I am exempt from backup withholding, (b)
    I have not been notified by the IRS that I am subject to backup withholding as a result of a
    failure to report all interest or dividends, or (c) the IRS has notified me that I am no
    longer subject to backup withholding.
 Signature
 ----------------------------------------------------------------------------------------------- Date
 ----------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------
</TABLE>
 
NOTE: FAILURE TO COMPLETE AND RETURN THIS SUBSTITUTE FORM W-9 MAY RESULT IN
      BACKUP WITHHOLDING OF 31% OF ANY PAYMENT MADE TO YOU PURSUANT TO THE
      EXCHANGE OFFER. PLEASE REVIEW THE ENCLOSED "GUIDELINES FOR CERTIFICATION
      OF TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9" FOR ADDITIONAL
      DETAILS.
 
      YOU MUST COMPLETE THE FOLLOWING CERTIFICATION IF YOU CHECKED THE BOX
                 "APPLIED FOR" IN PART I OF SUBSTITUTE FORM W-9
 
- --------------------------------------------------------------------------------
 
            CERTIFICATION OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
      I certify, under penalties of perjury, that a TIN has not been issued to
 me, and either (a) I have mailed or delivered an application to receive a TIN
 to the appropriate IRS Service Center or Social Security Administration
 Office, or (b) I intend to mail or deliver an application in the near future.
 I understand that I must provide a TIN to the payor within 60 days of
 submitting this Substitute Form W-9 and that if I do not provide a TIN to the
 payor within 60 days, the payor is required to withhold 31% of all reportable
 payments thereafter to me until I furnish the payor with a TIN.
 
 --------------------------------------------------------------
 --------------------------------------------------------------
               Signature                                  Date
- --------------------------------------------------------------------------------
 
                                       14

<PAGE>   1
 
                         NOTICE OF GUARANTEED DELIVERY
 
                                      FOR
 
                TENDER OF ALL OUTSTANDING 6 5/8% NOTES DUE 2003,
         6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND 7% MANDATORY
  PAR PUT REMARKETED SECURITIES(SM) DUE 2028 IN EXCHANGE FOR NEW 6 5/8% NOTES
    DUE 2003, 6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND 7% MANDATORY
                   PAR PUT REMARKETED SECURITIES(SM) DUE 2028
 
                                       OF
 
                           SIMON PROPERTY GROUP, L.P.
 
   
     As set forth in the Prospectus dated November 3, 1998 (as the same may be
amended or supplemented from time to time, the "Prospectus") of Simon Property
Group, L.P. (f/k/a Simon DeBartolo Group, L.P.) (the "Operating Partnership")
under the caption "The Exchange Offer -- How to Tender", and in the accompanying
Letter of Transmittal (the "Letter of Transmittal") and Instruction 2 thereto,
this form or one substantially equivalent must be used to tender any of the
Operating Partnership's 6 5/8% Notes due 2003 (the "Original 2003 Notes"),
6 3/4% Notes due 2005 (the "Original 2005 Notes"), 7 3/8% Notes due 2018 (the
"Original 2018 Notes," and, together with the Original 2003 Notes and the
Original 2005 Notes, the "Original Notes") and 7% MOPPRS(SM) due 2028 (the
"Original MOPPRS," and, together with the Original Notes, the "Original
Securities"), pursuant to the Exchange Offer, if (i) certificates representing
the Original Securities to be tendered for exchange are not lost but are not
immediately available, (ii) time will not permit a holder's Letter of
Transmittal, certificates representing the Original Securities to be tendered
and all other required documents to reach The Chase Manhattan Bank (the
"Exchange Agent") prior to the Expiration Date, or (iii) the procedures for
book-entry transfer cannot be completed prior to the Expiration Date. This form
may be delivered by an Eligible Institution by mail or hand delivery or
transmitted, via manually signed facsimile, to the Exchange Agent as set forth
below.
    
 
     Terms not otherwise defined herein shall have their respective meanings as
set forth in the Prospectus.
 
   
THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON DECEMBER 7,
          1998, UNLESS EXTENDED OR TERMINATED (THE "EXPIRATION DATE").
    
 
                 The Exchange Agent for the Exchange Offer is:
 
                            THE CHASE MANHATTAN BANK
 
<TABLE>
<CAPTION>
            By Facsimile:                            By Mail:                     By Hand or Overnight Courier:
<S>                                    <C>                                    <C>
          (212) 638-7375 or                  The Chase Manhattan Bank               The Chase Manhattan Bank
           (212) 344-9367                         55 Water Street                        55 Water Street
        Confirm by telephone:                Room 234, North Building               Room 234, North Building
           (212) 638-0828                       New York, NY 10041                     New York, NY 10041
       Contact: Carlos Esteves               Attention: Carlos Esteves              Attention: Carlos Esteves
</TABLE>
 
     DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE OR TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TRANSMISSION TO A
NUMBER OTHER THAN AS SET FORTH ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
<PAGE>   2
 
Ladies and Gentlemen:
 
     The undersigned hereby tender(s) to the Operating Partnership, upon the
terms and subject to the conditions set forth in the Prospectus and the Letter
of Transmittal, receipt of which is hereby acknowledged, the series and
principal amount of Original Securities set forth below pursuant to the
guaranteed delivery procedures set forth in the Prospectus under the caption
"The Exchange Offer -- How to Tender."
 
     The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender the Original Securities. The undersigned
will, upon request, execute and deliver any additional documents deemed by the
Exchange Agent or the Operating Partnership to be necessary or desirable for the
perfection of the undersigned's tender.
 
     Tenders may be withdrawn in accordance with the procedures set forth in the
Prospectus. The undersigned authorizes the Exchange Agent to deliver this Notice
of Guaranteed Delivery to the Operating Partnership and the Trustee as evidence
of the undersigned's tender of Original Securities.
 
     All authority herein conferred or agreed to be conferred by this Notice of
Guaranteed Delivery shall survive the death or incapacity of the undersigned and
every obligation of the undersigned under this Notice of Guaranteed Delivery
shall be binding upon the heirs, personal representatives, executors,
administrators, successors, assigns, trustees in bankruptcy and other legal
representatives of the undersigned.
 
                                        2
<PAGE>   3
 
                            PLEASE SIGN AND COMPLETE
 
<TABLE>
<S>                                                       <C>
- ------------------------------------------------------------------------------------------------------------------
Signatures of Registered Holder(s) or                     Date: --------------------------------------------------
Authorized Signatory:
                                                          Address: -----------------------------------------------
- --------------------------------------------------------  --------------------------------------------------------
                                                          --------------------------------------------------------
- --------------------------------------------------------
 
Name(s) of Registered Holder(s):                          Area Code and Telephone No.:
- --------------------------------------------------------  --------------------------------------------------------
- --------------------------------------------------------  --------------------------------------------------------
 
Series of Original Securities Tendered:                   If Original Securities will be delivered by book-entry
                                                          transfer, complete the following:
- --------------------------------------------------------
                                                          Depository Account No. ------------------------------
Principal Amount of Original Securities Tendered:
- --------------------------------------------------------
Certificate No.(s) of Original Securities
(if available):
- --------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------
</TABLE>
 
This Notice of Guaranteed Delivery must be signed by the holder(s) exactly as
their names appear on certificates for Original Securities or on a security
position listing as the owner of Original Securities, or by person(s) authorized
to become holder(s) by endorsements and documents transmitted with this Notice
of Guaranteed Delivery. If signature is by a trustee, executor, administrator,
guardian, attorney-in-fact, officer or other person acting in a fiduciary or
representative capacity, such person must set forth his or her full title below
under "Capacity" and submit evidence satisfactory to the Operating Partnership
of such person's authority to so act.
 
                      Please print name(s) and address(es)
 
Name(s):
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
Capacity:
- --------------------------------------------------------------------------------
 
Address(es):
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
 
DO NOT SEND ORIGINAL SECURITIES WITH THIS FORM. ORIGINAL SECURITIES SHOULD BE
SENT TO THE EXCHANGE AGENT, TOGETHER WITH A PROPERLY COMPLETED AND VALIDLY
EXECUTED LETTER OF TRANSMITTAL AND ANY OTHER REQUIRED DOCUMENTS.
 
                                        3
<PAGE>   4
 
<TABLE>
<S>                                                               <C>
- -----------------------------------------------------------------------------------------------------------------------------
 
GUARANTEE
(NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
       The undersigned, a member firm of a registered national securities exchange or of the National Association of
  Securities Dealers, Inc. or a commercial bank or trust company having an office or correspondent in the United States,
  hereby guarantees that, within three New York Stock Exchange trading days from the date of this Notice of Guaranteed
  Delivery, a properly completed and duly executed Letter of Transmittal (or a manually signed facsimile thereof), together
  with certificates representing the Original Securities tendered hereby in proper form for transfer (or confirmation of the
  book-entry transfer of such Original Securities into the Exchange Agent's account at a Book-Entry Transfer Facility,
  pursuant to the procedure for book-entry transfer set forth in the Prospectus under the caption "The Exchange Offer -- How
  to Tender"), and any other required documents will be deposited by the undersigned with the Exchange Agent at its address
  set forth above.
- -----------------------------------------------------------------------------------------------------------------------------
 
  Name of Firm: -----------------------------------------         ---------------------------------------------------------
                                                                  Authorized Signature
  Address: ------------------------------------------------
                                                                  Name:------------------------------------------------
- -----------------------------------------------------------
                                                                  Title:--------------------------------------------------
  Area Code and
  Telephone No.: -----------------------------------------        Date:--------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
                                        4

<PAGE>   1
 
                           SIMON PROPERTY GROUP, L.P.
 
          OFFER TO EXCHANGE $1,000 IN PRINCIPAL AMOUNT OF 6 5/8% NOTES
    DUE 2003, 6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND 7% MANDATORY
         PAR PUT REMARKETED SECURITIES(SM) DUE 2028 FOR EACH $1,000 IN
              PRINCIPAL AMOUNT OUTSTANDING OF LIKE SERIES OF NOTES
 
   
THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON DECEMBER 7,
          1998, UNLESS EXTENDED OR TERMINATED (THE "EXPIRATION DATE").
    
 
To Our Clients:
 
   
     Enclosed for your consideration is a Prospectus dated November 3, 1998 (as
the same may be amended or supplemented form time to time, the "Prospectus") and
a form of Letter of Transmittal (the "Letter of Transmittal") relating to the
offer (the "Exchange Offer") by Simon Property Group, L.P. (f/k/a Simon
DeBartolo Group, L.P.) (the "Operating Partnership") to exchange $1,000
principal amount of 6 5/8% Notes due 2003 (the "Exchange 2003 Notes"), 6 3/4%
Notes due 2005 (the "Exchange 2005 Notes"), 7 3/8% Notes due 2018 (the "Exchange
2018 Notes," and, together with the Exchange 2003 Notes and the Exchange 2005
Notes, the "Exchange Notes") and 7% MandatOry Par Put Remarketed Securities(SM)
("MOPPRS(SM)") due 2028 (the "Exchange MOPPRS", and, together with the Exchange
Notes, the "Exchange Securities") of the Operating Partnership , which have been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
upon the terms and subject to the conditions set forth in the Exchange Offer,
for each $1,000 principal amount of 6 5/8% Notes due 2003 (the "Original 2003
Notes"), 6 3/4% Notes due 2005 (the "Original 2005 Notes"), 7 3/8% Notes due
2018 (the "Original 2018 Notes," and, together with the Original 2003 Notes and
the Original 2005 Notes, the "Original Notes") and 7% MOPPRS(SM) due 2028 (the
"Original MOPPRS," and, together with the Original Notes, the "Original
Securities"), respectively, of the Operating Partnership.
    
 
     The material is being forwarded to you as the beneficial owner of Original
Securities held by us for your account or benefit but not registered in your
name. A tender of the Original Securities pursuant to the Exchange Offer may be
made only by us as the registered holder of the Original Securities, and
pursuant to your instructions. Therefore, the Operating Partnership urges
beneficial owners of Original Securities registered in the name of a broker,
dealer, commercial bank, trust Operating Partnership or other nominee to contact
such holder promptly if they wish to tender Original Securities in the Exchange
Offer.
 
     Accordingly, we request instructions as to whether you wish us to tender
any or all Original Securities held by us for your account or benefit, pursuant
to the terms and conditions set forth in the Prospectus and Letter of
Transmittal. We urge you to read carefully the Prospectus and Letter of
Transmittal before instructing us to tender your Original Securities pursuant to
the Exchange Offer.
 
   
     Your instructions to us should be forwarded as promptly as practicable in
order to permit us to tender Original Securities on your behalf in accordance
with the provisions of the Exchange Offer. The Exchange Offer will expire at
5:00 p.m., New York City Time, on December 7, 1998, unless extended or
terminated (the "Expiration Date"). Original Securities tendered pursuant to the
Exchange Offer may be withdrawn, subject to the procedures described in the
Prospectus, at any time prior to the Expiration Date.
    
 
     If you wish to have us tender any or all of your Original Securities held
by us for your account or benefit, please so instruct us by completing,
executing and returning to us the instruction form that appears below. The
accompanying Letter of Transmittal is furnished to you for informational
purposes only and may not be used by you to tender Original Securities held by
us and registered in our name for your account or benefit.
<PAGE>   2
 
                INSTRUCTIONS WITH RESPECT TO THE EXCHANGE OFFER
 
     The undersigned acknowledge(s) receipt of your letter and the enclosed
material referred to therein relating to the Exchange Offer made by Simon
Property Group, L.P. (f/k/a Simon DeBartolo Group, L.P.) with respect to their
Original Securities.
 
     This will instruct you to tender the Original Securities held by you for
the account of the undersigned, upon and subject to the terms and conditions set
forth in the Prospectus and the related Letter of Transmittal.
 
     Please tender the applicable Original Securities held by you for my account
as indicated below:
 
        AGGREGATE PRINCIPAL AMOUNT OF ORIGINAL SECURITIES TO BE TENDERED
 
             6 5/8% Notes due 2003:
             ------------------------------------------------------
             6 3/4% Notes due 2005:
             ------------------------------------------------------
             7 3/8% Notes due 2018:
             ------------------------------------------------------
             7% MOPPRS(SM) due 2028:
             ------------------------------------------------------
 
<TABLE>
<S>                                                  <C>
[ ]Please do not tender any Original
   Securities held by you for my account
Dated: , 1998                                        ----------------------------------------------
                                                     ----------------------------------------------
                                                     SIGNATURE(S)
                                                     ----------------------------------------------
                                                     ----------------------------------------------
                                                     PLEASE PRINT NAME(S) HERE
                                                     ----------------------------------------------
                                                     ----------------------------------------------
                                                     ADDRESS(ES)
                                                     ----------------------------------------------
                                                     AREA CODE(S) AND TELEPHONE NUMBER(S)
                                                     ----------------------------------------------
                                                     TAX IDENTIFICATION OR SOCIAL SECURITY NO(S)
</TABLE>
 
     None of the Original Securities held by us for your account will be
tendered unless we receive written instructions from you to do so. Unless a
specific instruction is given in the space provided, your signature(s) hereon
shall constitute an instruction to us to tender all the Original Securities held
by us for your account.
 
                                        2

<PAGE>   1
 
                           SIMON PROPERTY GROUP, L.P.
 
          OFFER TO EXCHANGE $1,000 IN PRINCIPAL AMOUNT OF 6 5/8% NOTES
    DUE 2003, 6 3/4% NOTES DUE 2005, 7 3/8% NOTES DUE 2018 AND 7% MANDATORY
         PAR PUT REMARKETED SECURITIES(SM) DUE 2028 FOR EACH $1,000 IN
              PRINCIPAL AMOUNT OUTSTANDING OF LIKE SERIES OF NOTES
 
   
THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME, ON DECEMBER 7,
1998, UNLESS EXTENDED OR TERMINATED (THE "EXPIRATION DATE").
    
 
To Brokers, Dealers, Commercial Banks
Trust Companies and Other Nominees:
 
   
     Enclosed for your consideration is a Prospectus dated November 3, 1998 (as
the same may be amended or supplemented form time to time, the "Prospectus") and
a form of Letter of Transmittal (the "Letter of Transmittal") relating to the
offer (the "Exchange Offer") by Simon Property Group, L.P. (f/k/a Simon
DeBartolo Group, L.P.) (the "Operating Partnership") to exchange $1,000
principal amount of 6 5/8% Notes due 2003 (the "Exchange 2003 Notes"), 6 3/4%
Notes due 2005 (the "Exchange 2005 Notes"), 7 3/8% Notes due 2018 (the "Exchange
2018 Notes," and, together with the Exchange 2003 Notes and the Exchange 2005
Notes, the "Exchange Notes") and 7% MandatOry Par Put Remarketed Securities(SM)
("MOPPRS(SM)") due 2028 (the "Exchange MOPPRS", and, together with the Exchange
Notes, the "Exchange Securities") of the Operating Partnership, which have been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
upon the terms and subject to the conditions set forth in the Exchange Offer,
for each $1,000 principal amount of 6 5/8% Notes due 2003 (the "Original 2003
Notes"), 6 3/4% Notes due 2005 (the "Original 2005 Notes"), 7 3/8% Notes due
2018 (the "Original 2018 Notes," and, together with the Original 2003 Notes and
the Original 2005 Notes, the "Original Notes") and 7% MOPPRS(SM) due 2028 (the
"Original MOPPRS," and, together with the Original Notes, the "Original
Securities"), respectively, of the Operating Partnership.
    
 
     We are asking you to contact your clients for whom you hold Original
Securities registered in your name or in the name of your nominee. In addition,
we ask you to contact your clients who, to your knowledge, hold Original
Securities registered in their own name. The Operating Partnership will not pay
any fees or commissions to any broker, dealer or other person in connection with
the solicitation of tenders pursuant to the Exchange Offer. You will, however,
be reimbursed by the Operating Partnership for customary mailing and handling
expenses incurred by you in forwarding any of the enclosed materials to your
clients. The Operating Partnership will pay all transfer taxes, if any,
applicable to the tender any of the enclosed materials to your clients. The
Operating Partnership will pay all transfer taxes, if any, applicable to the
tender of Original Securities to it or its order, except as otherwise provided
in the Prospectus and the Letter of Transmittal.
 
     Enclosed are copies of the following documents:
 
          1.  The Prospectus;
 
          2.  A Letter of Transmittal for your use in connection with the tender
     of Original Securities and for the information of your clients;
 
          3.  A form of letter that may be sent to your clients for whose
     accounts you hold Original Securities registered in your name or the name
     of your nominee; with space provided for obtaining the clients'
     instructions with regard to the Exchange Offer;
 
          4.  A form of Notice of Guaranteed Delivery; and
 
          5.  Guidelines for Certification of Taxpayer Identification Number on
     Substitute Form W-9.
 
   
     Your prompt action is requested. The Exchange Offer will expire at 5:00
p.m., New York City Time, on December 7, 1998, unless extended or terminated
(the "Expiration Date"). Original Securities tendered pursuant to the Exchange
Offer may be withdrawn, subject to the procedures described in the Prospectus,
at any time prior to the Expiration Date.
    
 
     In all cases, exchanges of Exchange Securities for Original Securities
accepted for exchange pursuant to the Exchange Offer will be made only after
timely receipt by the Exchange Agent of (a) certificates representing such
Original Securities or a confirmation of a book-entry transfer of such Original
Securities, as the case may be, (b) the Letter of Transmittal (or a facsimile
thereof) promptly completed and duly executed with any required signature
guarantees, and (c) any other documents required by the Letter of Transmittal.
<PAGE>   2
 
     Holders who wish to tender their Original Securities and (a) whose Original
Securities are not lost but are not immediately available, (b) who cannot
deliver their Original Securities, the Letter of Transmittal or any other
required documents to the Exchange Agent prior to the Expiration Date or (c) who
cannot complete the procedure for book-entry transfer prior to the Expiration
Date, may tender their Original Securities in accordance with the guaranteed
delivery procedures described in the Prospectus under the caption "The Exchange
Offer -- How to Tender."
 
     To tender Original Securities, certificates for Original Securities, a duly
executed and properly completed Letter of Transmittal or a facsimile thereof,
together with any other required documents, must be received by the Exchange
Agent as provided the Prospectus and the Letter of Transmittal.
 
     Additional copies of the enclosed material may be obtained form the
Exchange Agent, The Chase Manhattan Bank, by calling (212) 638-0828.
 
     NOTHING HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU OR ANY
OTHER PERSON AS AN AGENT OF THE OPERATING PARTNERSHIP OR THE EXCHANGE AGENT, OR
AUTHORIZE YOU OR ANY OTHER PERSON TO MAKE ANY STATEMENTS ON BEHALF OF EITHER OF
THEM WITH RESPECT TO THE EXCHANGE OFFER, EXCEPT FOR STATEMENTS EXPRESSLY MADE IN
THE PROSPECTUS AND THE LETTER OF TRANSMITTAL.
 
                                        2


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