Prospect Park South is a small neighborhood in Flatbush, Brooklyn, New York City, located south of Prospect Park. It is included within the Prospect Park South Historic District, which was designated by the New York City Landmarks Preservation Commission in 1979 and listed on the National Register of Historic Places in 1983. The historic district is bounded b…Prospect Park South is a small neighborhood in Flatbush, Brooklyn, New York City, located south of Prospect Park. It is included within the Prospect Park South Historic District, which was designated by the New York City Landmarks Preservation Commission in 1979 and listed on the National Register of Historic Places in 1983. The historic district is bounded by Church Avenue to the north, the BMT Brighton Line of the New York City Subway to the east, Beverley Road to the south, and between Stratford Road and Coney Island Avenue to the west.