The Brief A six-alarm fire destroyed a 51-unit condominium building at the Spinnaker Cove Condo Complex in Foster City, displacing dozens of residents and injuring four firefighters. Firefighters rescued seven people trapped on the third floor as flames rapidly spread through the attic, leaving the building a total loss. Fire crews remained on the scene Monday, dousing hot spots following a massive, six-alarm blaze that gutted a Foster City condominium complex, displacing dozens of residents and injuring four firefighters. Severe damage to Foster City condo complexWhat we know:The 51-unit building at the Spinnaker Cove Condo Complex on Sea Spray Lane suffered catastrophic damage, with officials noting the structure was a total loss after flames tore through the attic and insulation. Initial indications suggest the fire originated on the backside of the complex, possibly near a lower unit.