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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. 31)
                              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
     58,084,027 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. 1 to the Registrant's Preliminary Proxy
     Statement on Schedule 14A filed on February 25, 2003, the Registrant's
     Schedule 14D-9 filed on December 11, 2002 and the Registrant's Annual
     Report on Forms10-K and 10-K/A for the year ended December 31, 2002.
**   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                            Filing Party:  Simon Property Group, Inc.; Simon Property
Form or Registration    Schedule TO (File No. 005-42862),                     Acquisitions, Inc.; Westfield America, Inc.
No.:                    Amendment No. 1 to the Schedule TO     Date Filed:    December 5, 2002, December 16, 2002 and
                        and Amendment No. 5 to the Schedule TO                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: |_|

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                                   SCHEDULE TO

      This Amendment No. 31 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 and by
Amendment No. 30 thereto filed with the Commission on May 27, 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. 31 to the
Schedule TO is being filed on behalf of the Purchaser, SPG Inc. and Westfield
America, Inc. ("WEA").

      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.

            On May 29, 2003, the SPG Plaintiffs filed (i) an Emergency Motion
            (the "Motion") to Modify the United States District Court for the
            Eastern District of Michigan's (the "Court") Order Granting Stay of
            Preliminary Injunction, issued May 20, 2003 (the "Order") and (ii) a
            Memorandum of Law in support of the Motion (the "Memorandum of Law")
            to seek a modification of the Order. Copies of the Motion and the
            Memorandum of Law are filed herewith as Exhibits (a)(5)(CCC) and
            (a)(5)(DDD), respectively.

Item 12.    EXHIBITS.

(a)(5)(CCC) SPG Plaintiffs' Emergency Motion to Modify the United States
            District Court for the Eastern District of Michigan's Order
            Granting Stay of Preliminary Injunction, issued May 20, 2003,
            filed by Simon Property Group, Inc. and Simon Property
            Acquisitions, Inc. on May 29, 2003.


(a)(5)(DDD) Memorandum of Law in Support of SPG Plaintiffs'
            Emergency Motion to Modify the United States District Court
            for the Eastern District of Michigan's Order Granting Stay of
            Preliminary Injunction, issued May 20, 2003, as well as
            certain exhibits thereto, filed by Simon Property Group, Inc.
            and Simon Property Acquisitions, Inc. on May 29, 2003.





                                    SIGNATURE

      After due inquiry and to the best of their knowledge and belief, the
undersigned hereby certify as of May 30, 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 May 30, 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)(CCC)       SPG Plaintiffs' Emergency Motion to Modify the United States
                  District Court for the Eastern District of Michigan's Order
                  Granting Stay of Preliminary Injunction, issued May 20, 2003,
                  filed by Simon Property Group, Inc. and Simon Property
                  Acquisitions, Inc. on May 29, 2003.

(a)(5)(DDD)       Memorandum of Law in Support of SPG Plaintiffs'
                  Emergency Motion to Modify the United States District Court
                  for the Eastern District of Michigan's Order Granting Stay of
                  Preliminary Injunction, issued May 20, 2003, as well as
                  certain exhibits thereto, filed by Simon Property Group, Inc.
                  and Simon Property Acquisitions, Inc. on May 29, 2003.