Shed permit rules in Buffalo, NY — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Sheds up to 144 square feet in Buffalo may be installed without a building permit but still must meet setback and rear-yard coverage rules. Larger sheds require a building permit from Permit and Inspection Services.
Under the Buffalo Green Code and Uniform Building Code adoption, detached accessory storage structures less than or equal to 144 sq ft and without plumbing or permanent electrical service do not require a building permit (per NYS Residential Code R105.2). They still must comply with zoning: typical rear-yard setback of 3-5 feet, side setback of 3 feet, maximum height 12-15 feet, and accessory-structure coverage capped at approximately 30 percent of the rear yard. Sheds over 144 sq ft require a full building permit including plot plan, foundation details, and inspections. In historic districts, even small sheds visible from the street may need a Certificate of Appropriateness.
Unpermitted oversized shed: stop-work order plus fines up to 250 dollars. Zoning violations (setback, coverage): 100-500 dollars plus required removal.
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