§ 66-02 Purpose and Applicability
RCNY § 66-02
DEP adopts as an appendix to this chapter an interim flood risk area map showing the 10-year rainfall flood risk area and the coastal flood risk area. This interim map is also posted on the department’s website. The 10-year rainfall flood risk area and the coastal flood risk area, as delineated on the interim map, will serve as a reference for the New York City Department of Buildings to determine allowable locations of ancillary dwelling units (ADUs), including backyard ancillary dwelling units, in accordance with the New York City Building Code Appendix U Section BC U202 and Zoning Resolution § 12-10. A property lot is within the 10-year rainfall flood risk area or coastal flood risk area when all or any portion of the lot is within such mapped area. (Added City Record 9/23/2025, eff. 9/23/2025)
