AvalonBay: Starts New Apartment Community FOR IMMEDIATE RELEASE MARCH 14, 2000 AVALONBAY COMMUNITIES ANNOUNCES THE COMMENCEMENT OF CONSTRUCTION OF A NEW LUXURY APARTMENT COMMUNITY (Alexandria, VA) AvalonBay Communities, Inc. (NYSE/PCX Symbol: AVB) announced today the commencement of construction of a luxury apartment community in Arlington, VA. This community represents a truly unique opportunity to redevelop an entire neighborhood of eight city blocks in close-in Arlington, just two miles from the Pentagon and the 14th Street Bridge. The community will be known as Avalon at Arlington Square and will be constructed in two phases with 510 apartment homes in Phase I and 332 apartment homes in Phase II. The community will offer a wide variety of housing types to serve multiple market segments. The Arlington rental market is predominantly high-rise and Arlington Square will represent the only new low-rise product and the only rental townhomes available in the area. Community amenities will include a central Village Green; an extensive Village Center with marketing center, fitness center, indoor basketball court, resident business/telemarketing center and resident lounge; a swimming pool with deck; a tot lot; and a series of landscaped courtyards with seating areas and gas barbecue grills. Construction of Phase I of the community recently began. Initial occupancy is expected in the fourth quarter of 2000 with construction completion scheduled for the fourth quarter of 2001. Stabilized occupancy is expected in the third quarter of 2002. The total development cost is projected to be $69.9 million for Phase I. About AvalonBay Communities, Inc. AvalonBay owns or holds an ownership interest in 133 apartment communities containing 38,821 apartment homes in 12 states and the District of Columbia, of which presently 12 communities are under construction and four communities are under reconstruction. AvalonBay is an equity REIT in the business of developing, redeveloping, acquiring and managing multifamily apartment communities in high barrier-to-entry markets of the United States. More information on AvalonBay may be found on AvalonBay's Web Site at http://www.avalonbay.com. For additional information, please contact Richard L. Michaux, President and Chief Executive Officer, at (703) 317-4602 or Bryce Blair, Chief Operating Officer, at (617) 847-1250. This release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The forward-looking statements contained in this release are statements that involve risks and uncertainties, including, but not limited to, changes in the demand for apartment homes, the effects of economic conditions, the impact of competition and competitive pricing, changes in construction costs, the results of financing efforts, the effects of the Company's accounting policies and other matters detailed in the Company's filings with the Securities and Exchange Commission, including the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1998 under the heading "Management's Discussion and Analysis of Financial Condition and Results of Operations - Forward-Looking Statements." In addition, the actual cost of construction and the completion date of the community described in this release may be different than the current projections and estimates indicated by the Company herein. End