Law firm O’Melveny & Myers has been awarded LEED gold certification for commercial interiors in an existing building for its San Francisco office…. Hines has been awarded LEED certification for 101 California in San Francisco, a 48-story office building that the company owns, leases and manages…. Watt Cos. has been awarded LEED gold certification for operations and maintenance of its twin 23-story office tower complex in Century City, Calif…. Property manager CB Richard Ellis and owner FC Tower Property Partners have received LEED gold certification for existing buildings for the 49-story First City Tower office building in Houston.