Directions To Seaplace (2045 Building, Unit 310). Traveling South On Longboat Key, Head North On Gulf Of Mexico Drive. Seaplace Is On The West Side Of The Road. After Entering Through The Guard Gate, Go Forward, Follow The Road To Building 2045 (M1). Park In A Guest Space. Unit 310 Is On The Third Floor. The Seaplace Office Is Also Located In Building 2045.