Shed permit rules in Allegheny County, PA — also referred to as storage shed, backyard shed, or accessory building regulations — set size limits, setbacks, and when a building permit is required.
Sheds in Allegheny County are governed by municipal zoning. Most municipalities exempt sheds under 200 sq ft from UCC building permits but require zoning permits for placement and setbacks. Typical rear/side setbacks: 3-10 feet.
PA UCC exempts accessory structures under 1,000 sq ft used for residential storage (and under 120 sq ft when not containing utilities) from full building permit but does not exempt them from zoning compliance. Municipalities including Pittsburgh require a zoning certificate for any shed. Common standards: maximum one shed per lot, rear yard only or rear/side, 3-10 ft from property line, under 10-15 ft in height, under 200 sq ft without a building permit. Sheds on permanent foundations or with electrical connections require UCC permits regardless of size. Historic districts add design review.
Zoning violation: $500 per day. Unpermitted shed with utilities: stop work, removal order, doubled fees.
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