An anonymous Staten Island-based LLC has filed applications for a six-story, 20-unit mixed-use building at 2848 West 15th Street, in Coney Island. The project will encompass 35,667 square feet and will include a 1,721-square-foot daycare center on the ground floor, followed by 20 residential units across the upper five floors. The apartments should average 561 square feet apiece, indicative of rentals. There will also be a 17-car parking garage. Brooklyn-based Bricolage Designs is the architect of record. The 7,129-square-foot site consists of a vacant lot and a two-story structure. Demolition permits were filed last month.