EXHIBIT 32.1

                   CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER,
              CHIEF FINANCIAL OFFICER AND CHIEF ACCOUNTING OFFICER
                                   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 GTJ REIT, Inc. (the "Company")
on Form 10-Q for the quarter  ended March 31, 2007 as filed with the  Securities
and Exchange  Commission on the date hereof (the "Periodic  Report"),  I, Jerome
Cooper,  President and Chief  Executive  Officer and I, Michael  Kessman,  Chief
Accounting of the registrant,  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 Periodic  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 Periodic Report fairly presents,  in
          all  material  respects,   the  financial  condition  and  results  of
          operations of the Company.



Dated:  February 6, 2008                         /s/ Jerome Cooper
                                           -------------------------------------
                                           Jerome Cooper
                                           President and Chief Executive Officer


Date:   February 6, 2008                        /s/ Michael I. Kessman
                                           -------------------------------------
                                           Michael Kessman
                                           Chief Accounting Officer