Boston Properties, Inc. is a real estate investment trust. The Company is an owner and developer of office properties in the United States. The Company's segments by geographic area are Boston, New York, San Francisco and Washington, DC. The Company conducts its operations through Boston Properties Limited Partnership. The Company holds interests in approximately 170 commercial real estate properties, aggregating over 46.5 million net rentable square feet. The Company's properties include approximately 160 office properties, a hotel, over five retail properties and approximately four residential properties. The Company's properties include 399 Park Avenue in New York; 599 Lexington Avenue in New York; Bay Colony Corporate Center in Waltham; Embarcadero Center Four in San Francisco; Capital Gallery in Washington, DC; 680 Folsom Street in San Francisco; One Freedom Square in Reston; One Tower Center in East Brunswick, and 140 Kendrick Street in Needham.