Shh... Many units sell without being publicly listed.
Learn more about off-market listings at 351 21st Street!
351 21st Street is a condo with 16 apartments, located in South Slope - Greenwood Heights a short walk to the R subway line.
Similar nearby buildings include 259 21st Street, 248 17th Street and 279 Prospect Avenue.
Learn more about off-market listings at 351 21st Street!
View school info, local attractions, transportation options & more.
Experience amazing 3D aerial maps and fly throughs.