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