JOINT FILING AGREEMENT

                                  
                                   EXHIBIT 16

                            JOINT FILING AGREEMENT

     In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree to the joint filing on behalf of
each of us of a statement on Schedule 13D relating to the Common Stock, par
value $.01 per share, of Berkshire Realty Company, Inc., a Delaware
corporation, and that any amendments thereto filed by any of us will be filed
on behalf of each of us.  This agreement may be included as an exhibit to
such joint filing.


                                      BLACKSTONE REAL ESTATE ACQUISITIONS 
                                         III L.L.C.

                                      By:/s/ Xxxxxx X. Xxxxxx
                                         Name: Xxxxxx X. Xxxxxx
                                         Title: Vice President


                                      BLACKSTONE REAL ESTATE ADVISORS 
                                         III, L.P.

                                      By:  BRE ADVISORS III L.L.C.


                                      By:/s/ Xxxxxx X. Xxxxxx
                                         Name: Xxxxxx X. Xxxxxx
                                         Title: Vice President


                                      BRE ADVISORS III L.L.C.


                                      By:/s/ Xxxxxx X. Xxxxxx
                                         Name: Xxxxxx X. Xxxxxx
                                         Title:     Vice President    



                                      BRE/BERKSHIRE GP L.L.C.


                                      By:/s/ Xxxxxx X. Xxxxxx             
                                         Name: Xxxxxx X. Xxxxxx
                                         Title:  Vice President


                                      BRE/BERKSHIRE LP L.L.C.


                                      By:/s/ Xxxxxx X. Xxxxxx             
                                         Name: Xxxxxx X. Xxxxxx
                                         Title:  Vice President



                                      /s/ Xxxxxx X. Xxxxxx 
                                      XXXXX X. XXXXXXXX

                                      By: Xxxxxx X. Xxxxxx, Attorney-in-Fact



                                      /s/ Xxxxxx X. Xxxxxx             
                                      XXXXXXX X. XXXXXXXXXX

                                      By: Xxxxxx X. Xxxxxx, Attorney-in-Fact



Dated: April 15, 1999

















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