Brookhaven, NY Building Safety: Building Permits (2026)

Section 16-3A states the core rule plainly: except as otherwise provided, a building permit is required for any work that must conform to the Uniform Code and/or the Energy Code, including but not limited to construction, enlargement, alteration, improvement, removal, relocation or demolition of a building or structure, and installation of a solid-fuel-burning heating appliance, chimney or flue in a dwelling unit. No one may commence work requiring a permit without first obtaining one from the Town. The section then lists specific exemptions: one-story detached accessory structures on one- or two-family or townhouse lots used as tool or storage sheds, playhouses or similar uses, so long as gross floor area does not exceed 144 square feet and the structure sits in a conforming location under Chapter 85 (the Town's zoning code); window awnings on one- or two-family dwellings, again if conforming under Chapter 85; painting, wallpapering, tiling, carpeting or similar finish work; installation of listed portable electrical, plumbing, heating, ventilation or cooling equipment; and repairs that do not affect the structural system, required means of egress, or fire protection system.

Subsection B is explicit that an exemption from needing a permit is not authorization to do noncompliant work; the underlying Uniform Code and Energy Code requirements still apply. Permits are applied for in writing to the Chief Building Inspector under § 16-3C, and under § 16-3H a building permit expires 12 months after issuance, extendable up to 24 months at the Inspector's discretion, with defined one-year renewal windows and escalating fees for exterior work left unfinished.