Battery Park City is a 92-acre (0.4 km²) planned community at the southwestern tip of Lower Manhattan in New York City, United States. The land upon which it stands was created on the Hudson River using 1.2 million cubic yards (917,000 m3) of dirt and rocks excavated during the construction of the World Trade Center and certain other construction projects, as well as from sand dredged from New York Harbor off Staten Island. The neighborhood, which is the site of the World Financial Center along with many housing, commercial, and retail buildings, is named for adjacent Battery Park.