The buildings here are at the hanger end of Chrissy Field where the torpedo test ramp is (presumably for shore launching test torpedo's - that probably got exciting!).  The big white house used to be the Coast Guard station with the Commandant's house next to it - the station was not popular apparently because there is no harbor - there was a fixed dock and when the tide was low, the men had to swing out onto the boats via knotted ropes - or climb back up if they were returning to base.  The current station is across the gate near the base of the bridge with a protected break water and harbor.