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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   ----------

                                  SCHEDULE TO/A

            TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                               (Amendment No. 37)
                              TAUBMAN CENTERS, INC.
                       (Name of Subject Company (Issuer))
                        SIMON PROPERTY ACQUISITIONS, INC.
                           SIMON PROPERTY GROUP, INC.
                             WESTFIELD AMERICA, INC.
                      (Names of Filing Persons (Offerors))
                     COMMON STOCK, PAR VALUE $.01 PER SHARE
                         (Title of Class of Securities)
                                    876664103
                      (CUSIP Number of Class of Securities)

        James M. Barkley, Esq.                  Peter R. Schwartz, Esq.
      Simon Property Group, Inc.                Westfield America Inc.
         National City Center                  11601 Wilshire Boulevard
      115 West Washington Street                      12th Floor
            Suite 15 East                        Los Angeles, CA 90025
        Indianapolis, IN 46024                 Telephone: (310) 445-2427
      Telephone: (317) 636-1600

                 (Name, Address and Telephone Numbers of Person
  Authorized to Receive Notices and Communications on Behalf of Filing Persons)

                                   ----------

                                   Copies to:
       Steven A. Seidman, Esq.                   Scott V. Simpson, Esq.
       Robert B. Stebbins, Esq.         Skadden, Arps, Slate, Meagher & Flom LLP
       Willkie Farr & Gallagher                     One Canada Square
          787 Seventh Avenue                          Canary Wharf
       New York, New York 10019                 London, E14 5DS, England
      Telephone: (212) 728-8000               Telephone: (44) 20 7519 7000

                                   ----------

                            CALCULATION OF FILING FEE



       TRANSACTION VALUATION*                   AMOUNT OF FILING FEE**
--------------------------------------------------------------------------------------
                                                  
          $ 1,160,416,360                            $ 232,083.27
======================================================================================


*   Estimated for purposes of calculating the amount of the filing fee only.
    Calculated by multiplying $20.00, the per share tender offer price, by
    58,020,818 shares of Common Stock, consisting of (i) 49,298,965 outstanding
    shares of Common Stock, (ii) 2,270 shares of Common Stock issuable upon
    conversion of 31,784,842 outstanding shares of Series B Non-Participating
    Convertible Preferred Stock, (iii) 7,202,785 shares of Common Stock issuable
    upon conversion of outstanding partnership units of The Taubman Realty
    Group, Limited Partnership ("TRG") and (iv) 1,516,798 shares of Common Stock
    issuable upon conversion of outstanding options (each of which entitles the
    holder thereof to purchase one partnership unit of TRG which, in turn, is
    convertible into one share of Common Stock), based on Amendment No. 2 to the
    Registrant's Preliminary Revocation Solicitation Statement on Schedule 14A
    filed on May 14, 2003, the Registrant's Schedule 14D-9 filed on December 11,
    2002, the Registrant's Annual Report on Forms 10-K and 10-K/A for the year
    ended December 31, 2002 and the Registrant's Quarterly Report on Form 10-Q
    for the quarter ended March 31, 2003.
**  The amount of the filing fee calculated in accordance with Regulation
    240.0-11 of the Securities Exchange Act of 1934, as amended, equals 1/50th
    of one percent of the value of the transaction.
/X/ Check the box if any part of the fee is offset as provided by
    Rule 0-11(a)(2) and identify the filing with which the offsetting fee was



    previously paid. Identify the previous filing by registration statement
    number, or the Form or Schedule and the date of its filing.

Amount Previously Paid:  $248,745.11
Form or Registration     Schedule TO (File No. 005-42862),
No.:                     Amendment No. 1 to the Schedule TO
                         and Amendment No. 5 to the
                         Schedule TO

Filing Party:  Simon Property Group, Inc.; Simon Property
               Acquisitions, Inc.; Westfield America, Inc.
Date Filed:    December 5, 2002, December 16, 2002 and
               January 15, 2003

/ / Check the box if the filing relates solely to preliminary communications
    made before the commencement of a tender offer.
/ / Check the appropriate boxes below to designate any transactions to which the
    statement relates.
    /X/ third-party tender offer subject to Rule 14d-1.
    / / issuer tender offer subject to Rule 13e-4.
    / / going-private transaction subject to Rule 13e-3.
    / / amendment to Schedule 13D under Rule 13d-2.
        Check the following box if the filing is a final amendment reporting the
        results of the tender offer: / /
================================================================================



                                   SCHEDULE TO

            This Amendment No. 37 amends and supplements the Tender Offer
Statement on Schedule TO originally filed with the Securities and Exchange
Commission (the "Commission") on December 5, 2002, as amended and supplemented
by Amendment No. 1 thereto filed with the Commission on December 16, 2002, by
Amendment No. 2 thereto filed with the Commission on December 27, 2002, by
Amendment No. 3 thereto filed with the Commission on December 30, 2002, by
Amendment No. 4 thereto filed with the Commission on December 31, 2002, by
Amendment No. 5 thereto filed with the Commission on January 15, 2003, by
Amendment No. 6 thereto filed with the Commission on January 15, 2003, by
Amendment No. 7 thereto filed with the Commission on January 16, 2003, by
Amendment No. 8 thereto filed with the Commission on January 22, 2003, by
Amendment No. 9 thereto filed with the Commission on January 23, 2003, by
Amendment No. 10 thereto filed with the Commission on February 7, 2003, by
Amendment No. 11 thereto filed with the Commission on February 11, 2003, by
Amendment No. 12 thereto filed with the Commission on February 18, 2003, by
Amendment No. 13 thereto filed with the Commission on February 21, 2003, by
Amendment No. 14 thereto filed with the Commission on February 21, 2003, by
Amendment No. 15 thereto filed with the Commission on February 27, 2003, by
Amendment No. 16 thereto filed with the Commission on February 27, 2003, by
Amendment No. 17 thereto filed with the Commission on February 28, 2003, by
Amendment No. 18 thereto filed with the Commission on March 3, 2003, by
Amendment No. 19 thereto filed with the Commission on March 6, 2003, by
Amendment No. 20 thereto filed with the Commission on March 18, 2003, by
Amendment No. 21 thereto filed with the Commission on March 21, 2003, by
Amendment No. 22 thereto filed with the Commission on March 28, 2003, by
Amendment No. 23 thereto filed with the Commission on March 31, 2003, by
Amendment No. 24 thereto filed with the Commission on April 30, 2003, by
Amendment No. 25 thereto filed with the Commission on May 2, 2003, by Amendment
No. 26 thereto filed with the Commission on May 9, 2003, by Amendment No. 27
thereto filed with the Commission on May 12, 2003, by Amendment No. 28 thereto
filed with the Commission on May 13, 2003, by Amendment No. 29 thereto filed
with the Commission on May 21, 2003, by Amendment No. 30 thereto filed with the
Commission on May 27, 2003, by Amendment No. 31 thereto filed with the
Commission on May 30, 2003, by Amendment No. 32 thereto filed with the
Commission on June 4, 2003, by Amendment No. 33 thereto filed with the
Commission on June 10, 2003, by Amendment No. 34 thereto filed with the
Commission on June 25, 2003, by Amendment No. 35 thereto filed with the
Commission on June 30, 2003 and by Amendment No. 36 thereto filed with the
Commission on July 22, 2003 (as amended and supplemented, the "Schedule TO")
relating to the offer by Simon Property Acquisitions, Inc., a Delaware
corporation (the "Purchaser") and wholly owned subsidiary of Simon Property
Group, Inc., a Delaware corporation ("SPG Inc."), to purchase all of the
outstanding shares of common stock, par value $.01 per share (the "Shares"), of
Taubman Centers, Inc. (the "Company") at a purchase price of $20.00 per Share,
net to the seller in cash, without interest thereon, upon the terms and subject
to the conditions set forth in the Offer to Purchase, dated December 5, 2002
(the "Offer to Purchase"), and the Supplement to the Offer to Purchase, dated
January 15, 2003 (the "Supplement"), and in the related revised Letter of
Transmittal (which, together with any supplements or amendments, collectively
constitute the "Offer"). This Amendment No. 37 to the Schedule TO is being filed
on behalf of the Purchaser, SPG Inc. and Westfield America, Inc.



            Capitalized terms used and not defined herein shall have the
meanings assigned to such terms in the Offer to Purchase, the Supplement and the
Schedule TO, as applicable.

            The item numbers and responses thereto below are in accordance with
the requirements of Schedule TO.

Item 11.    ADDITIONAL INFORMATION.

            The Indiana Attorney General has filed on behalf of the State of
            Indiana a Brief of Amicus Curiae, dated July 28, 2003 (the "Amicus
            Brief") in the United States Court of Appeals for the Sixth
            Circuit, in support of appellees (the Purchaser and SPG Inc.)
            and in support of affirmance of the order issued by the United
            States District Court for the Eastern District on May 8, 2003.
            A copy of the Amicus Brief is filed herewith as
            Exhibit (a)(5)(KKK).

Item 12.    EXHIBITS.

(a)(5)(KKK) Brief of Amicus Curiae, filed on behalf of the State of Indiana, by
            the Indiana Attorney General, dated July 28, 2003, in the United
            States Court of Appeals for the Sixth Circuit.



                                    SIGNATURE

            After due inquiry and to the best of their knowledge and belief, the
undersigned hereby certify as of August 1, 2003 that the information set forth
in this statement is true, complete and correct.


                                    SIMON PROPERTY GROUP, INC.

                                    By: /s/ James M. Barkley
                                       -----------------------
                                       Name:  James M. Barkley
                                       Title: Secretary and General Counsel


                                    SIMON PROPERTY ACQUISITIONS, INC.

                                    By: /s/ James M. Barkley
                                       -----------------------
                                       Name:  James M. Barkley
                                       Title: Secretary and Treasurer



            After due inquiry and to the best of its knowledge and belief, the
undersigned hereby certifies as of August 1, 2003 that the information set forth
in this statement is true, complete and correct.


                                    WESTFIELD AMERICA, INC.

                                    By: /s/ Peter R. Schwartz
                                        -----------------------
                                        Name: Peter R. Schwartz
                                        Title: Senior Executive Vice President



                                  EXHIBIT INDEX



     EXHIBIT NO.                              DESCRIPTION
---------------------  ---------------------------------------------------------
                    
(a)(5)(KKK)            Brief of Amicus Curiae, filed on behalf of the State of
                       Indiana, by the Indiana Attorney General, dated July
                       28, 2003, in the United States Court of Appeals for the
                       Sixth Circuit.