A Brooklyn-based property owner has filed applications for a four-story, eight-unit residential building at 305 Sumpter Street, located in Ocean Hill. The project will measure 7,448 square feet and its residential units should average 709 square feet apiece, indicative of rental apartments. There will be two residential units per floor. Brooklyn-based BTE Design Services is the architect of record. The 2,627-square-foot lot is occupied by a two-story house. Demolition permits have not been filed.