Green Key Real Estate Environmentally and socially responsible real estate company. Certified as a green business, EcoBrokers and Green Building professionals. Offices in San Francisco, Burlingame, Oakland, and Marin. Website: www.greenkeyrealestate.comEmail: info@greenkeyrealestate.comPhone: 415 750-1120Mailing Address:444 8th StreetSan Francisco, CA 94103Date Updated: 11/17/2010