Exhibit 32.1

                            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  Quarterly  Report of  Capital  Trust,  Inc.  (the
     "Company") on Form 10-Q for the period  ending  September 30, 2006 as filed
     with  the  Securities  and  Exchange  Commission  on the date  hereof  (the
     "Report"),  I, John R.  Klopp,  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  result  of
                operations of the Company.

     /s/ John R. Klopp
     -----------------
     John R. Klopp
     Chief Executive Officer
     October 30, 2006