May 13, 1997



Gables Residential Trust
2859 Paces Ferry Road
Overlook III, Suite 1450
Atlanta, Georgia  30339

Ladies and Gentlemen:

     This opinion is furnished in connection with the registration,  pursuant to
the Securities Act of 1933, as amended (the  "Securities  Act"),  of one million
(1,000,000) common shares of beneficial interest,  par value $.01 per share (the
"Shares"),  of Gables Residential Trust, a Maryland real estate investment trust
(the "Company").

     In connection with rendering this opinion, we have examined the Amended and
Restated  Declaration  of Trust  and the  Amended  and  Restated  Bylaws  of the
Company;  such records of the corporate  proceedings of the Company as we deemed
material; a registration statement on Form S-8 under the Securities Act relating
to the Shares  (the  "Registration  Statement");  the Gables  Residential  Trust
Second  Amended and Restated 1994 Share Option and  Incentive  Plan, as amended;
and such other  certificates,  receipts,  records and documents as we considered
necessary for the purposes of this opinion.
 
     We are attorneys admitted to practice in the Commonwealth of Massachusetts.
We express no opinion  concerning the laws of any  jurisdictions  other than the
laws of the United States of America,  the Commonwealth of Massachusetts and the
Maryland General Corporation Law.
   
     Based upon the  foregoing,  we are of the opinion that when the Shares have
been issued and paid for in  accordance  with the terms of the  Prospectus,  the
Shares will be legally  issued,  fully paid and  nonassessable  common shares of
beneficial  interest,  par value $.01 per share,  of the Company.  

     The foregoing assumes that all requisite steps will be taken to comply with
the requirements of the Securities Act and applicable requirements of state laws
regulating the offer and sale of securities.

      We hereby  consent to the filing of this  opinion as an exhibit to the
 Registration Statement.
                                       Very truly yours,


                                       /s/  Goodwin, Procter & Hoar LLP  
                                       ---------------------------------  
                                      GOODWIN, PROCTER & HOAR LLP