NYC requires DOB building permits for most accessory structures in Brooklyn. Sheds over 120 square feet or over 10 feet tall require permits. Smaller sheds may qualify for a limited exemption. All structures must comply with NYC Building Code and zoning setback requirements. Licensed professionals may be required for filings.
The NYC Department of Buildings (DOB) regulates all construction in Brooklyn, including accessory structures like sheds. Sheds over 120 square feet in floor area or over 10 feet in height require a DOB building permit. The permit application must be filed by a New York State licensed professional (registered architect or professional engineer) for most projects. Smaller sheds (120 square feet or under, 10 feet or under) used only for storage may be exempt from a building permit but must still comply with the NYC Zoning Resolution's setback requirements, lot coverage limits, and yard regulations. In Brooklyn's residential districts, accessory structures must be placed in the rear yard and cannot exceed the maximum lot coverage for the zoning district. Many Brooklyn properties have very small rear yards, limiting the practical size of sheds. Electric wiring in any shed requires a separate DOB electrical permit. Properties in FEMA flood zones (parts of southern Brooklyn) must elevate structures above the base flood elevation. NYC Landmarks historic districts may require LPC approval for visible accessory structures. The DOB NOW online system handles permit applications.
Shed without required DOB permit: work-without-permit violation, ECB fine of $10,000–$25,000. Required removal or retroactive permitting.
Kings County, NY
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Kings County, NY
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Kings County, NY
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Kings County, NY
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Kings County, NY
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Kings County, NY
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See how Kings County's shed & outbuilding permits rules stack up against other locations.
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