1 New York Plaza is an office building in New York City's Financial District, built in 1969 at the intersection of South and Whitehall Streets. It is the southernmost of all Manhattan skyscrapers. The building is 640 feet (195 m) tall with 50 floors. The building was designed by William Lescaze & Assocs. and Kahn & Jacobs. The building has 2.556 million square feet of office space. There is a 40,000 square feet retail concourse on the lower level.