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                                                                    EXHIBIT 10.4

                                 THIRD AMENDMENT
                                       TO
                           SECOND AMENDED AND RESTATED
                        AGREEMENT OF LIMITED PARTNERSHIP
                                       OF
                             GGP LIMITED PARTNERSHIP

         THIS THIRD AMENDMENT (the "Third Amendment") is made and entered into
on the 15th day of February, 2002, by and among the undersigned parties.

                              W I T N E S S E T H:
                              - - - - - - - - - -

         WHEREAS, a Delaware limited partnership known as GGP Limited
Partnership (the "Partnership") exists pursuant to that certain Second Amended
and Restated Agreement of Limited Partnership of GGP Limited Partnership dated
as of April 1, 1998, as amended by that certain First Amendment thereto dated as
of June 10, 1998, and that certain Second Amendment thereto dated as of June 29,
1998 (such Second Amended and Restated Agreement of Limited Partnership, as so
amended, the "Second Restated Partnership Agreement"), and the Delaware Revised
Uniform Limited Partnership Act;

         WHEREAS, General Growth Properties, Inc., a Delaware corporation, is
the general partner of the Partnership (the "General Partner"); and

         WHEREAS, the parties hereto, being the sole general partner of the
Partnership and the holders of a Majority-in-Interest of the Common Units (as
defined in the Second Restated Partnership Agreement) desire to amend the Second
Restated Partnership Agreement to reflect certain understandings among them as
set forth herein.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
herein contained and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto do hereby agree
as follows:

         1. CAPITALIZED TERMS. Capitalized terms used but not defined herein
shall have the definitions assigned to such terms in the Second Restated
Partnership Agreement, as amended hereby.

         2. ADDITIONAL DEFINITIONS. Section 1.1 of the Second Restated
Partnership Agreement is hereby amended by inserting the following new
definitions:

                  "Preferred Units" shall mean the Series A Preferred Units and
         any other series of preferred units of limited partnership interest in
         the Partnership that are established and issued from time to time in
         accordance with the terms hereof.

                  "Stock Plans" shall mean the Incentive Stock Plan and the
         other option, stock purchase and/or dividend reinvestment plans of the
         General Partner or the Partnership that are in effect from time to
         time.

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         3. AMENDED DEFINITIONS.

              (a) The definition of "Common Units" set forth in Section 1.1 of
         the Second Restated Partnership Agreement is hereby deleted in its
         entirety and the following is hereby inserted in its place and stead:

              "'Common Units' shall mean all Units other than Preferred Units."

              (b) The definition of "Percentage Interest" set forth in Section
         1.1 of the Second Restated Partnership Agreement is hereby deleted in
         its entirety and the following is hereby inserted in its place and
         stead:

                  "'Percentage Interest' shall mean, with respect to any Partner
         at any time, the percentage ownership interest of such Partner in the
         Partnership at such time, which percentage ownership interest shall be
         equal to the quotient of the number of Common Units owned by such
         Partner at such time divided by the aggregate number of issued and
         outstanding Common Units at such time, and any holder of Preferred
         Units shall have a 0% Percentage Interest in respect of such Preferred
         Units. The Percentage Interest of each Partner on the date hereof is
         set forth opposite its name on Exhibit A."

         4. ADDITIONAL FUNDS. Section 4.3(b) of the Second Restated Partnership
Agreement is hereby deleted in its entirety and the following is hereby inserted
in its place and stead:

                  "(b) Effective on each Adjustment Date and without the consent
         of any other Partner, the Partnership shall issue to the General
         Partner (i) with respect to Contributed Funds relating to an issuance
         by the General Partner of Common Stock, the number of additional Common
         Units equal to the product of (x) the number of shares of Common Stock
         issued by the General Partner in connection with obtaining such
         Contributed Funds, and (y) the Conversion Factor, and (ii) with respect
         to Contributed Funds relating to an issuance by the General Partner of
         Series A Preferred Shares, an equal number of Series A Preferred Units.
         The General Partner shall be authorized on behalf of each of the
         Partners to amend this Agreement to reflect the issuance of Units in
         accordance with Sections 4.3 and 4.4 in the event that the General
         Partner deems such amendment to be desirable."

         5. STOCK PLANS. Section 4.4 of the Second Restated Partnership
Agreement is hereby deleted in its entirety and the following is hereby inserted
in its place and stead:

                  "4.4 STOCK PLANS. If at any time or from time to time options
         granted in connection with the General Partner's Stock Incentive Plan
         or any other Stock Plan are exercised in accordance with the terms
         thereof or shares of Common Stock are otherwise issued pursuant to any
         of the Stock Plans:

                           (a) the General Partner shall, as soon as practicable
                  after such exercise or other issuance, contribute to the
                  capital of the Partnership an amount equal to the exercise
                  price or other purchase price paid to the General Partner by
                  the exercising or purchasing party in connection with such
                  exercise or issuance; and

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                           (b) the Partnership shall issue to the General
                  Partner, with respect to any exercise of options or purchase
                  of shares of Common Stock pursuant to the Stock Plans, the
                  number of additional Common Units equal to the product of (i)
                  the number of shares of Common Stock issued by the General
                  Partner in connection with such exercise or purchase,
                  multiplied by (ii) the Conversion Factor."

         6. DISTRIBUTIONS WITH RESPECT TO COMMON UNITS. Section 5.2(a) of the
Second Restated Partnership Agreement is hereby deleted in its entirety and the
following is hereby inserted in its place and stead: -

                  "5.2  DISTRIBUTIONS WITH RESPECT TO COMMON UNITS.

                  (a) Subject to the terms of the Preferred Units and after
         giving effect to the same, the General Partner shall, from time to time
         as determined by the General Partner (but in any event not less
         frequently than quarterly), cause the Partnership to distribute all or
         a portion of the remaining Net Operating Cash Flow to the holders of
         Common Units on the relevant Partnership Record Date in such amounts as
         the General Partner shall determine; provided, however, that all such
         distributions shall be made pro rata in accordance with the Partners'
         then Percentage Interests; and provided further, that notwithstanding
         anything to the contrary contained herein, the General Partner shall
         use its best efforts to cause the Partnership to distribute sufficient
         amounts to enable the General Partner to pay shareholder dividends that
         will (i) satisfy the requirements for qualifying as a REIT under the
         Code and Regulations ("REIT Requirements"), and (ii) avoid any federal
         income or excise tax liability of the General Partner."

         7. DISTRIBUTIONS WITH RESPECT TO SERIES A PREFERRED UNITS. Section
5.9(c) of the Second Restated Partnership Agreement is hereby deleted in its
entirety and the following is hereby inserted in its place and stead:

                  "(c) If the Partnership has not authorized and paid full
         cumulative distributions with respect to the Series A Preferred Units
         for all past distribution periods and the then current distribution
         period, or has not authorized and set apart a sum sufficient for the
         payment thereof, then the Partnership shall not authorize, pay or set
         aside for payment any distributions with respect to the Common Units or
         any other series of Preferred Units (other than distributions made in
         the form of Common Units or Preferred Units, as the case may be), nor
         shall the Partnership redeem, purchase or otherwise acquire any Common
         Units or Preferred Units of any other series (or set apart any monies
         as a sinking fund for such purpose) for any consideration other than
         Common Units or Preferred Units, as the case may be (including without
         limitation in connection with the exercise of Rights)."

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         8. POWERS AND DUTIES OF GENERAL PARTNER. Section 6.2 of the Second
Restated Partnership Agreement is hereby amended by inserting the phrase "but
without limiting the foregoing grant of power, authority and discretion" after
the word "hereof" and before the comma in the twelfth line thereof.

         9. MAJOR DECISIONS. Section 6.3(a) of the Second Restated Partnership
Agreement is hereby amended by inserting the phrase "and other than as provided
in other sections hereof" after the word "hereof" and before the period in the
last line of such section.

         10. DISTRIBUTIONS ON DISSOLUTION. Section 7.2(d) of the Second Restated
Partnership Agreement is hereby deleted in its entirety and the following is
hereby inserted in its place and stead:

              (a) Payment to the holders of Preferred Units in accordance with
         the terms of thereof; and

              (b) To the Partners holding Common Units in accordance with their
         respective Percentage Interests."

         11. LIQUIDATION PREFERENCE OF SERIES A PREFERRED UNITS. The phrase "or
other series of Preferred Units" is hereby added after the word "Units" and
before the period in the last line of Section 7.8(a) of the Second Restated
Partnership Agreement.

         12. AMENDMENTS. The second sentence of Section 13.7 of the Second
Restated Partnership Agreement is hereby deleted in its entirety and the
following is hereby inserted in its place and stead:

                  "Notwithstanding anything to the contrary contained herein,
         (a) without the written consent of a Limited Partner, this Agreement
         may not be amended to convert such Limited Partner's partnership
         interest in the Partnership to a general partnership interest (or
         otherwise adversely affect such Limited Partner's limited liability)
         and (b) without the written consent of a Limited Partner holding Common
         Units, this Agreement may not be amended to materially adversely affect
         such Limited Partner's rights to distributions or allocations in
         respect of such Common Units except in connection with the admission of
         Additional Partners or unless such amendment affects the Bucksbaum
         Limited Partners in the same manner on a Unit-for-Unit basis."

         13. NEW EXHIBIT A. Exhibit A to the Second Restated Partnership
Agreement, identifying the Partners, the number of Units owned by them and their
respective Percentage Interests, if any, is hereby deleted in its entirety and
the Exhibit A in the form attached hereto is hereby inserted in its place and
stead.

         14. OTHER PROVISIONS UNAFFECTED. Except as expressly amended hereby,
the Second Restated Partnership Agreement shall remain in full force and effect
in accordance with its terms.

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         IN WITNESS WHEREOF, the undersigned have executed this Third Amendment
on the day and year first above written.

GENERAL PARTNER:
---------------

GENERAL GROWTH PROPERTIES, INC.,
 a Delaware corporation

By: /s/ Bernard Freibaum
    -----------------------------------------
    Its: Executive Vice President/Chief Financial Officer

LIMITED PARTNERS:
-----------------

M.B. CAPITAL PARTNERS III, a South
Dakota general partnership

By:      GENERAL TRUST COMPANY, not
         individually but solely as Trustee
         of Martin Investment Trust G, a partner

         By: /s/ Marshall E. Eisenberg
             -------------------------
             Its: President<PAGE>
                                                                    EXHIBIT 10.5

                                    AMENDMENT
                                       TO
                           SECOND AMENDED AND RESTATED
                        AGREEMENT OF LIMITED PARTNERSHIP
                                       OF
                             GGP LIMITED PARTNERSHIP

         THIS AMENDMENT (the "Amendment") is made and entered into as of the
24th day of April, 2002, by and among the undersigned parties.

                              W I T N E S S E T H:

         WHEREAS, a Delaware limited partnership known as GGP Limited
Partnership (the "Partnership") exists pursuant to that certain Second Amended
and Restated Agreement of Limited Partnership of GGP Limited Partnership dated
as of April 1, 1998, as amended by that certain First Amendment thereto dated as
of June 10, 1998, that certain Second Amendment thereto dated as of June 29,
1998 and that certain Third Amendment thereto dated as of February 15, 2002
(such Second Amended and Restated Agreement of Limited Partnership, as so
amended, the "Second Restated Partnership Agreement"), and the Delaware Revised
Uniform Limited Partnership Act;

         WHEREAS, General Growth Properties, Inc., a Delaware corporation, is
the general partner of the Partnership (the "General Partner"); and

         WHEREAS, the parties hereto, being the sole general partner of the
Partnership and the holders of a Majority-in-Interest of the Common Units (as
defined in the Second Restated Partnership Agreement), desire to amend the
Second Restated Partnership Agreement as provided herein.

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
herein contained and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto do hereby agree
as follows:

         1. CAPITALIZED TERMS. Capitalized terms used but not defined herein
shall have the definitions assigned to such terms in the Second Restated
Partnership Agreement, as amended hereby.

         2. AMENDMENT TO SECTION 8.4. Section 8.4 of the Second Restated
Partnership Agreement is hereby deleted in its entirety and the following is
hereby inserted in lieu thereof :

                  "8.4 Restrictions on Transfer. In addition to any other
         restrictions on transfer herein contained, in no event may any transfer
         or assignment of Units by any Partner be made (i) to any Person who
         lacks the legal right, power or capacity to own Units; (ii) in
         violation of any provision of any mortgage or trust deed (or the note
         or bond secured thereby) constituting a Lien against a Property or any
         part thereof, or other instrument, document or agreement to which the
         Partnership or any Property Partnership is a party or

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         otherwise bound; (iii) in violation of applicable law; (iv) of any
         component portion of a Unit, such as the Capital Account, or rights to
         Net Operating Cash Flow, separate and apart from all other components
         of such Unit (other than such assignments of the right to receive
         distributions as the General Partner shall approve in writing which
         approval the General Partner may withhold in its sole discretion), (v)
         in the event such transfer would cause the General Partner to cease to
         comply with the REIT Requirements, (vi) if such transfer would cause a
         termination of the Partnership for federal income tax purposes, (vii)
         if such transfer would, in the opinion of counsel to the Partnership,
         cause the Partnership to cease to be classified as a partnership for
         Federal income tax purposes, (viii) if such transfer would cause the
         Partnership to become, with respect to any "benefit plan investor," as
         defined in 29 C.F.R. ss. 2510.3-101(f)(2) (a "Benefit Plan Investor"),
         a "party-in-interest" (as defined in Section 3(14) of ERISA) or a
         "disqualified person" (as defined in Section 4975(e) of the Code), (ix)
         if such transfer would, in the opinion of counsel to the Partnership,
         cause any portion of the assets of the Partnership to constitute assets
         of a Benefit Plan Investor pursuant to 29 C.F.R. ss. 2510.3-101 or (x)
         if such transfer is effectuated through an "established securities
         market" or "secondary market" (or the substantial equivalent thereof)
         within the meaning of Section 7704 of the Code or such transfer causes
         the Partnership to become a "publicly traded partnership" as such term
         is defined in Section 7704(b) of the Code. Notwithstanding anything in
         this Agreement to the contrary:

                           (a) no Limited Partner admitted to the Partnership
                  after June 29, 1998 may sell, assign or otherwise transfer its
                  Units or other interest in the Partnership or any portion
                  thereof to any Foreign Owner (and no interest in such Limited
                  Partner or any Person that directly or indirectly owns an
                  interest in such Limited Partner may be transferred if such
                  Limited Partner shall become a Foreign Owner as the result of
                  such transfer) without the prior written consent of the
                  General Partner (which consent may be given or withheld in the
                  sole discretion of the General Partner); and

                           (b) no other Limited Partner may sell, assign or
                  otherwise transfer its Units or other interest in the
                  Partnership or any portion thereof to any Foreign Owner (and
                  no interest in such Limited Partner or any Person that
                  directly or indirectly owns an interest in such Limited
                  Partner may be transferred if such Limited Partner shall
                  become a Foreign Owner as the result of such transfer) without
                  providing written notice of the same to the General Partner.
                  Any such written notice shall be received by the General
                  Partner at least thirty days prior to any such sale,
                  assignment or other transfer.

         Any sale, assignment or other transfer of Units or other interests in
         the Partnership made in violation of this Agreement (including without
         limitation any sale, assignment or other transfer of Units made without
         giving the notice described above at the time described above) shall be
         null and void ab initio.

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         3. OTHER PROVISIONS UNAFFECTED. Except as expressly amended hereby, the
Second Restated Partnership Agreement shall remain in full force and effect in
accordance with its terms.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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         IN WITNESS WHEREOF, the undersigned have executed this Amendment on the
day and year first above written.

GENERAL PARTNER:

GENERAL GROWTH PROPERTIES, INC.,
a Delaware corporation

By:      /s/ Bernard Freibaum
         --------------------------------------------
         Its:  Executive Vice President/Chief Financial Officer

LIMITED PARTNERS:

M.B. CAPITAL PARTNERS III, a South
Dakota general partnership

By:      GENERAL TRUST COMPANY, not
         individually but solely as Trustee
         of Martin Investment Trust G, a partner

         By: /s/ Marshall E. Eisenberg
             ----------------------------------------
               Its: President

                                      D-4

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