Exhibit 32.1
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                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


     In connection with the annual report of AmBase  Corporation (the "Company")
on Form  10-K  for the  period  ending  December  31,  2007 as  filed  with  the
Securities and Exchange Commission on the date hereof (the "Report"), I, Richard
A.  Bianco,  Chief  Executive  Officer of the Company,  certify,  pursuant to 18
U.S.C.  Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley
Act of 2002, that:

     (1) The Report fully  complies  with the  requirements  of Section 13(a) or
15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
material  respects,  the  financial  condition  and results of operations of the
Company.


Date:  March 28, 2008                       /s/ Richard A. Bianco
                                            ---------------------------
                                            Richard A. Bianco
                                            Chairman, President and
                                            Chief Executive Officer
                                            AmBase Corporation