Brooklyn-based Chany Construction has filed applications for a four-story, four-unit residential building at 274 22nd Street, in South Slope, located four blocks from the 25th Street stop on the R train. The project will measure 4,006 square feet in total, and its full-floor units will average roughly 1,000 square feet apiece. Oleg Ruditser, also based in Brooklyn, is the applicant of record, and an existing three-story townhouse must first be demolished.