Southampton Village, NY Environmental Rules: Flood Zones (2026)

Chapter 62, Flood Damage Prevention, applies to all areas of special flood hazard within the jurisdiction of the Village of Southampton, Suffolk County, New York (§ 62-5). Those areas are the ones shown on the FEMA Flood Insurance Rate Map panels listed in § 62-6 for Community Number 365343, effective September 25, 2009, together with the Suffolk County Flood Insurance Study of the same date and a Letter of Map Revision, Case No. 25-02-0080P, effective November 28, 2025. The study and maps are on file at the Office of the Building Inspector, 23 Main Street, Southampton, NY 11968.

The Building Inspector is the local administrator and grants or denies floodplain development permits (§ 62-11). Under § 62-12 it is unlawful to undertake any development in an area of special flood hazard without a valid permit. Applications go on forms furnished by the local administrator and include plans, in duplicate, drawn to scale showing the nature, location, dimensions and elevations of the area, existing or proposed structures, fill, storage of materials and drainage facilities. The fee is the amount the Board of Trustees fixes by resolution, and the applicant also reimburses the Village for additional review, inspection and approval costs, with a deposit of no more than $500 available to cover them.

The permit is not the end of the process. Section 62-14 requires a certified as-built elevation from a licensed land surveyor or professional engineer once the lowest floor is placed, periodic inspections during construction, and stop-work orders for development found ongoing without a permit or out of compliance with its conditions. Further work before the certification is submitted and approved proceeds at the permit holder's risk. No one can occupy a new or altered building in the zone until the local administrator issues a certificate of compliance.

The definitions in § 62-4 set the thresholds that pull a project into the full construction standards: a substantial improvement is work whose cost equals or exceeds 50% of the structure's market value before construction starts, and substantial damage means a restoration cost that equals or exceeds 50% of market value. A structure that fails the chapter and has no approved variance under Article VI is declared non-compliant and reported to FEMA (§ 62-9).