EXHIBIT 16.1

                                                           (GRANT THORNTON LOGO)

ACCOUNTANTS AND BUSINESS ADVISORS



                  July 25, 2005


                  U.S. Securities and Exchange Commission
                  Office of the Chief Accountant
                  100 F Street, NE
                  Washington, DC 20549



                  Re: Flagstar Bancorp, Inc. (Flagstar Bank 401(k) Plan)
                      File No. 001-16577


                  Dear Sir or Madam:

                  We have read Item 4.01 of Form 8-K of Flagstar Bancorp, Inc.
                  (Flagstar Bank 401(k) Plan) dated July 13, 2005, and agree
                  with the statements concerning our Firm contained therein.


                  Very truly yours,

                  Grant Thornton LLP





























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