================================================================================



                                                          OMB APPROVAL
                                                     OMB Number: 3235-0515
                                                     Expires: April 30, 2005
                                                     Estimated average burden
                                                     hours per response: 43.5



                                  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. 15)
                              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**
- --------------------------------------------------------------------------------
          $1,243,725,540                               $248,745.11
================================================================================
*    Estimated for purposes of calculating the amount of the filing fee only.
     Calculated by multiplying  $20.00,  the per share tender offer price, by
     62,186,277 shares of Common Stock,  consisting of (i) 52,207,756
     outstanding  shares of Common Stock,  (ii) 2,269 shares of Common Stock
     issuable upon  conversion  of  31,767,066  outstanding  shares of Series B
     Non-Participating  Convertible Preferred Stock,  (iii) 7,097,979 shares of
     Common Stock issuable upon conversion of outstanding  partnership units of
     The Taubman Realty Group,  Limited  Partnership  ("TRG") and
     (iv) 2,878,273  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 the Registrant's  Preliminary
     Proxy Statement on Schedule 14A filed on December 20, 2002, the
     Registrant's  Schedule 14D-9 filed on December 11, 2002 and the
     Registrant's  Quarterly  Report on Form 10-Q for the period ended
     September 30, 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                   Filing Party:  Simon Property Group,
Paid:        $248,745.11            Inc.; Simon Property
Form or      Schedule TO            Acquisitions, Inc.; Westfield America, Inc.
Registration (File No. 005-42862),  Date Filed:  December 5, 2002, December 16,
No.:         Amendment No. 1        2002 and January 15, 2003
             to the Schedule TO
             and Amendment No. 5 to the 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. 15 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 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 and Amendment No. 14 thereto filed with the
Commission on February 21, 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. 15 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 5.           PAST CONTACTS, TRANSACTIONS, NEGOTIATIONS AND AGREEMENTS.

                  On February 26, 2003, David Simon, Chief Executive Officer
                  of SPG Inc. and Peter Lowy, Chief Executive Officer of WEA,
                  sent a letter to the independent members of the Company Board
                  inviting them to discuss actions that would facilitate the
                  consummation of the Offer and solutions that would address the
                  conflicting interests of the holders of Common Stock and
                  holders of The Taubman Realty Group Limited Partnership
                  interests. A copy of the letter is filed herewith
                  as Exhibit(a)(5)(v).

Item 12.          EXHIBITS.

(a)(5)(V)         Letter to the independent members of the Company Board from
                  David Simon, Chief Executive Officer of Simon Property Group,
                  Inc. and Peter Lowy, Chief Executive Officer of Westfield
                  America, Inc., dated February 26, 2003.





                                    SIGNATURE

                  After due inquiry and to the best of their knowledge and
belief, the undersigned hereby certify as of February 27, 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 February 27, 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)(V)           Letter to the independent members of the Company Board
                    from David Simon, Chief Executive Officer of Simon Property
                    Group, Inc. and Peter Lowy, Chief Executive Officer of
                    Westfield America, Inc., dated February 26, 2003.



                                                             EXHIBIT 99(a)(5)(v)



[SIMON PROPERTY GROUP LOGO]                                     [WESTFIELD LOGO]




VIA FACSIMILE AND OVERNIGHT COURIER

February 27, 2003

Dear Independent Members of the TCO Board of Directors:

     Simon Property Group, Inc. and Westfield America, Inc. have offered to
purchase all common shares of Taubman Centers, Inc. for $20.00 per share in
cash. As you know, approximately 85% of TCO common shares were tendered into our
offer, an overwhelming shareholder mandate.

     The TCO Board has stated that the SPG/Westfield offer cannot be successful
because the Taubman family is opposed to the offer. We believe that the TCO
Board has a duty to act independently and take all necessary steps to remove the
impediments to our $20.00 cash per share offer. The TCO Board should be
proactive and seek to resolve any conflicting objectives and interests of the
Taubman family and the TCO common shareholders.

     As holders of units in the Taubman Operating Partnership, the Taubman
family has financial interests that differ significantly from those of the TCO
common shareholders. SPG and Westfield have repeatedly indicated a willingness
to negotiate with the TCO Board and the Taubman family specific solutions that
would address the Taubman family's unique tax and economic situation.

     SPG and Westfield continue to be willing to discuss solutions to the
conflicting interests of TCO common shareholders and the Taubman Operating
Partnership unitholders, so long as the TCO common shareholders receive $20.00
cash per share. Solutions to be discussed could take several forms, including
unitholders retaining their interests in the Taubman Operating Partnership, or
exchanging Taubman Operating Partnership units for units in the partnerships of
either SPG and/or Westfield. Alternatively, we can discuss a structure that
would give Taubman unitholders, including the Taubman family, ownership and
management of shopping center assets under the Taubman name proportionate to
their economic interests in the Taubman Operating Partnership based on a value
of $20.00 per Operating Partnership unit. To safeguard the integrity of the
process, any agreed upon solution should be approved by TCO's common
shareholders.

     Contrary to the assertions in TCO's press releases, there is a path to
completing our offer. The most appropriate path is through you, the independent
directors of TCO, who are fiduciaries and guardians of the interests of the
public shareholders. We urge the TCO Board to take a more active and independent
role and accept our invitation to discuss the solutions referred above and the
facilitation of our $20.00 all cash offer.




     While we remain committed to discussions, we are also determined to take
steps to amend the excess share provision in TCO's charter which is the primary
impediment to the successful completion of our offer. Accordingly, we intend to
propose, at the upcoming annual meeting of TCO, that the excess share provision
in the TCO charter be amended to allow SPG and Westfield to purchase the TCO
common shares tendered into the offer.


Very truly yours,

/s/ David Simon                                /s/ Peter Lowy
    --------------------                          --------------------
    David Simon                                   Peter Lowy




cc:  Lisa A. Payne
     Robert S. Taubman
     William S. Taubman