Philadelphia Zoning Code caps lot coverage by district. RSA-5: 75% max. RSD-3: 30% max. Open area minimum varies 25-70% by district.
Per Phila §14-701, maximum building coverage: RSA-5 75%, RSA-3 60%, RSD-3 30%, RSD-1 25%. Rear yard open area requirements ensure light and air. Impervious coverage restrictions also apply under Stormwater Regulations (PWD). Contact Philadelphia at (215) 686-1776 for enforcement. This lot coverage rule under Philadelphia County's building setbacks ordinances applies to unincorporated areas of Philadelphia County. For current statutory text, amendments, enforcement procedures, fines, appeal options, and any exemptions that may apply to your situation, contact Philadelphia County code enforcement directly or consult the official Pennsylvania municipal code library. Ordinances change periodically; always verify with local staff before relying on summary information.
Over-coverage construction: stop-work + ZBA variance required or demolition.
Philadelphia County, PA
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Philadelphia County, PA
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Philadelphia County, PA
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Philadelphia County, PA
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Philadelphia County, PA
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Philadelphia County, PA
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See how Philadelphia County's lot coverage limits rules stack up against other locations.
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