You can find Zoning and Land Use information about any site located within the NYC boundaries through a software called ZoLa.
The link below is directly to the Stuyvesant Square Park site. You can turn on and off different kinds of information (layers) through the menu on the right and read specific information using the “i” button on top.
http://gis.nyc.gov/doitt/nycitymap/template?z=8&p=988628,206598&a=ZOLA&c=ZOLA
