TAMPA, FLA. — BTI Partners has sold a 12-acre parcel of land in Tampa’s Westshore Marina District for $13.2 million. The buyer, Wellington, Fla.-based Bainbridge Cos., plans to build a 351-unit apartment community on the property. Westshore Marina District is a master-planned community under development by BTI Partners. The company is selling portions of the 52-acre property to developers that will build residential communities in phases. Upon completion, Westshore Marina District will include approximately 1,750 residential units, a 200-room hotel, retail, restaurants and office space, 185 to 240 marina slips and a 1.5-mile waterfront park. Bainbridge’s community will feature a public park, game rooms, swimming pool, dog parks, parking garages, fitness center and a clubhouse.