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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
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                                  SCHEDULE TO/A
            TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                               (Amendment No. 24)
                              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)
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                                   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

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                            CALCULATION OF FILING FEE
- --------------------------------------------------------------------------------
          TRANSACTION VALUATION*                  AMOUNT OF FILING FEE**
- --------------------------------------------------------------------------------
              $1,194,236,060                           $238,847.21
================================================================================

*    Estimated for purposes of calculating the amount of the filing fee only.
     Calculated by multiplying $20.00, the per share tender offer price, by
     59,711,803 shares of Common Stock, consisting of (i) 50,908,965 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) 1,597,783 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 Forms 10-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                          January 15, 2003
                         Schedule TO
|_| 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. 24 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 and by Amendment No. 23 thereto filed with the Commission on March 31, 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. 24 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 April 30, 2003, SPG Inc. and WEA announced that SPG Inc. and the Purchaser have requested permission to file a Third Amended Complaint in the United States District Court for the Eastern District of Michigan in order to challenge recent actions taken by the Company. The full text of a press release, dated April 30, 2003, issued by SPG Inc. and WEA in connection with this announcement is filed herewith as Exhibit (a)(5)(SS). Item 12. EXHIBITS. (a)(5)(SS) Press Release issued by Simon Property Group, Inc. and Westfield America, Inc., dated April 30, 2003. After due inquiry and to the best of their knowledge and belief, the undersigned hereby certify as of April 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 April 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)(SS) Press Release issued by Simon Property Group, Inc. and Westfield America, Inc., dated April 30, 2003.


                                                              Exhibit (a)(5)(SS)

[LOGO OF SIMON PROPERTY GROUP]                               [LOGO OF WESTFIELD]


                                                              
SIMON CONTACT:                                                       WESTFIELD CONTACT:
Shelly Doran                 George Sard/Paul Caminiti/Hugh Burns    Katy Dickey
Simon Property Group, Inc.   Citigate Sard Verbinnen                 Westfield America
317/685-7330                 212/687-8080                            310/445-2407
SIMON PROPERTY GROUP AND WESTFIELD AMERICA SEEK TO ADD TWO NEW CLAIMS TO MICHIGAN LAWSUIT CONTEND THAT TCO BOARD HAS BREACHED FIDUCIARY DUTIES BY USING SHARE REPURCHASE PROGRAM TO INCREASE TAUBMAN FAMILY VOTING POWER IN CONTESTED BOARD ELECTION ALLEGE THAT APPOINTMENT OF MYRON ULLMAN III TO TCO BOARD BREACHES FIDUCIARY DUTIES AND VIOLATES TCO BY-LAWS AND MICHIGAN LAW NEW YORK, APRIL 30, 2003 - Simon Property Group, Inc. (NYSE: SPG) and Westfield America, Inc., the U.S. subsidiary of Westfield America Trust (ASX: WFA), today announced that SPG has requested permission to file a Third Amended Complaint in the United States District Court for the Eastern District of Michigan in order to challenge the latest improper actions by Taubman Centers, Inc. (NYSE: TCO). SPG and Westfield contend that the TCO Board is breaching its fiduciary duties to TCO shareholders by improperly using the TCO share repurchase program to increase the relative voting power of the Taubman family going into a contested election for board members. SPG and Westfield believe that implementation of the TCO repurchase program is an improper use of shareholder funds designed to further entrench the Taubman family, and that it contradicts TCO's public pledge of February 10, 2003, not to use the repurchase program to increase the relative voting power of the family on matters affecting the tender offer by SPG and Westfield. SPG and Westfield also believe that the TCO Board has breached its fiduciary duties to TCO shareholders by invalidly appointing its own handpicked director, Myron Ullman III, in an attempt to deprive TCO shareholders of their right to fill the seat left vacant by A. Alfred Taubman. In addition, SPG and Westfield contend that the appointment of Mr. Ullman is invalid under TCO's charter, by-laws, and Michigan law, which require that the seat to which Mr. Ullman was appointed be filled through a shareholder vote. 1 The board seat, which should have been up for election at the Company's annual meeting in May 2002, was left vacant by the resignation of Alfred Taubman in December 2001. By appointing Mr. Ullman to the board without a shareholder vote, the Company is trying to ensure that the seat will not be up for election until 2005, thereby improperly extending the three-year term of the seat previously held by Alfred Taubman into a six-year term. David Simon, CEO of SPG, and Peter Lowy, CEO of Westfield America, issued the following joint statement: "The TCO Board's recent actions are part of a continuing pattern of behavior designed to further entrench themselves at the expense of shareholders. As a result, we feel compelled once again to seek the intervention of the court in order to give shareholders the opportunity to accept our $20.00 per share all-cash offer." * * * The $20.00 per share all-cash offer for TCO shares will expire on midnight, New York City time, on May 30, 2003, unless further extended. The complete terms and conditions of the offer are set forth in the Offer to Purchase, as amended, and the related Letter of Transmittal, copies of which are on file with the SEC and available by contacting the information agent, MacKenzie Partners, Inc. at (800) 322-2885. Merrill Lynch & Co. is acting as financial advisor to SPG and Westfield America, Inc. and is the Dealer Manager for the Offer. Willkie Farr & Gallagher is acting as legal advisor to SPG and Skadden, Arps, Slate, Meagher & Flom LLP is acting as legal advisor to Westfield America, Inc. Simpson Thacher & Bartlett is acting as legal advisor to Merrill Lynch & Co. ABOUT SIMON PROPERTY GROUP Simon Property Group, Inc. (NYSE:SPG), headquartered in Indianapolis, Indiana, is a real estate investment trust engaged in the ownership and management of income-producing properties, primarily regional malls and community shopping centers. Through its subsidiary partnerships, it currently owns or has an interest in 241 properties containing an aggregate of 183 million square feet of gross leasable area in 36 states, as well as nine assets in Europe and Canada. Additional Simon Property Group information is available at www.simon.com. ABOUT WESTFIELD AMERICA, INC. Westfield America, Inc. is the United States subsidiary of Westfield America Trust (ASX: WFA), the second-largest property trust listed on the Australian Stock Exchange. WFA owns a majority interest in the Westfield America portfolio of 63 centers, branded as Westfield Shoppingtowns. Westfield Shoppingtowns are home to more than 8,400 specialty stores and encompass 64 million square feet in the states of California, Colorado, Connecticut, Florida, 2 Illinois, Indiana, Maryland, Missouri, Nebraska, New Jersey, New York, North Carolina, Ohio and Washington. # # # IMPORTANT INFORMATION This news release is for informational purposes only and is not an offer to buy or the solicitation of an offer to sell any TCO shares, and is not a solicitation of a proxy. Simon Property Group, Inc. and Simon Property Acquisitions, Inc., a wholly owned subsidiary of Simon Property Group, Inc. filed a tender offer statement on Schedule TO with the Securities and Exchange Commission on December 5, 2002 (as amended), with respect to the offer to purchase all outstanding shares of TCO common stock. Investors and security holders are urged to read this tender offer statement as amended because it contains important information. Investors and security holders may obtain a free copy of the tender offer statement and other documents filed by SPG and Westfield America, Inc. with the Commission at the Commission's web site at http://www.sec.gov. The tender offer statement and any related materials may also be obtained for free by directing such requests to MacKenzie Partners, Inc. at (800) 322-2885. SPG and Westfield America, Inc. and certain other persons may be deemed participants in the solicitation of proxies from the shareholders of TCO in connection with TCO's 2003 Annual Meeting of Shareholders. Information concerning such participants is available in the tender offer statement and other documents filed by SPG and Westfield with the Commission as described above, and further information will be available in SPG/Westfield's Preliminary Proxy Statement and Definitive Proxy Statement to be filed with the Commission in connection with the solicitation of proxies in due course. Shareholders of TCO are advised to read SPG/Westfield's Definitive Proxy Statement in connection with SPG/Westfield's solicitation of proxies from TCO shareholders when it becomes available, because it will contain important information. Shareholders of TCO and other interested parties may obtain, free of charge, copies of the Preliminary Proxy Statement and the Definitive Proxy Statement (when available), and any other documents filed by SPG/Westfield with the Commission in connection with the proxy solicitation at the Commission's website as described above. The Preliminary Proxy Statement and the Definitive Proxy Statement (when available) and these other documents may also be obtained free of charge by contacting MacKenzie Partners, Inc., the firm assisting SPG/Westfield in the solicitation of proxies, toll-free at the number listed above. FORWARD-LOOKING STATEMENTS This release contains some forward-looking statements as defined by the federal securities laws which are based on our current expectations and assumptions, which are subject to a number of risks and uncertainties that could cause actual results to differ materially from those anticipated, projected or implied. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise. 3