What is Zoning Maps?
Zoning Maps meaning The 126 New York City zoning maps indicate the location and boundaries of zoning districts and are part of the Zoning Resolution. Each map covers a land area of approximately 8,000 feet (north/south) by 12,500 feet (east/west). Zoning map amendments, or rezonings, are subject to ULURP review.
reference: Glossary of Planning Terms – NYC Planning