Pittsburgh limits lot coverage through its zoning code. Maximum lot coverage varies by zoning district. All structures including accessory buildings count toward lot coverage calculations. The zoning code includes impervious surface limits in some districts to manage stormwater runoff.
Pittsburgh zoning code limits maximum lot coverage, defined as the percentage of a lot covered by buildings, driveways, patios, and other impervious surfaces. Typical residential limits are 40 to 60% depending on zoning district and lot size. Lot coverage calculations include primary structures, accessory buildings, paved areas, and covered patios. Permeable pavers may receive partial credit in some jurisdictions. Exceeding lot coverage requires a variance. Stormwater management requirements may apply to highly impervious lots.
Exceeding lot coverage: correction required. May need to remove impervious surface. Fines $200 to $1,000.
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Side-by-side rule comparisons with other cities in Allegheny County.
See how other cities in Allegheny County handle lot coverage limits.
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