Brookhaven, NY Environmental Rules: Boat Dock Permits (2026)

Chapter 81 (Wetlands and Waterways) covers any dock construction, replacement, enlargement, or removal that touches a freshwater or tidal wetland, waterway, or the land within its jurisdictional area, which § 81-3 sets at 150 feet landward of the wetland boundary or waterway edge for most parcels. Section 81-4 lists erecting, enlarging, or removing structures, including bulkheads, retaining walls, pilings, docks, catwalks, and boat davits, as regulated activities that cannot proceed without a Town-issued permit. Depending on the project, the Division of Environmental Protection issues either a Category A permit, reserved under § 81-9 for new construction that fails to keep a 25-foot natural buffer or sits within 50 feet of a wetland or waterway and requires a public hearing before the Town Board, or a Category B permit under § 81-10 for other regulated work.

Section 81-6 requires the application before the Director, and § 81-18 caps most permits at two years to complete the work, though dredging and aquaculture permits can run five years. Section 81-20 layers on a separate building permit from the Chief Building Inspector once the wetlands permit issues, and no certificate of occupancy follows until that inspector signs off. Fences built within 100 feet of a wetland are only exempt under § 81-5 if elevated six inches above grade there and set landward of the waterway edge, so a dock-adjacent fence still needs its own review.

Appeals of a Director's denial go to the Town Board within 30 days under § 81-23, with further recourse to an Article 78 proceeding under § 81-24 if the Board upholds the denial.