What is Waterfront Yard?
Waterfront Yard meaning A waterfront yard is the portion of a waterfront zoning lot extending along the entire length of the shoreline which must be open and unobstructed from the lowest level to the sky, except for certain permitted obstructions. Depending upon the zoning district, the minimum depth is typically 30 to 40 feet. Shore public walkways are required to be located within the waterfront yard.
reference: Glossary of Planning Terms – NYC Planning