Driveway construction in Allegheny County requires municipal permits and right-of-way encroachment approval for curb cuts. Pittsburgh DOMI issues driveway permits; PennDOT regulates state route frontage.
Pittsburgh Code Title IV Chapter 419 requires a driveway curb-cut permit from DOMI with site plan showing sight distance and grade. Maximum residential driveway width is typically 20 feet in suburban municipalities. Driveways on state routes (PA-19, PA-51, PA-88, US-22, US-30) require a PennDOT Highway Occupancy Permit (HOP) under Title 67 Ch. 441. Impervious surface limits apply under stormwater ordinances (see stormwater). Gravel driveways are permitted in rural townships but often prohibited in boroughs.
Unpermitted curb cut: 250 to 1,000 dollars plus restoration costs. PennDOT HOP violations: 500 dollars plus removal. Stormwater violations separate.
See how Allegheny County's driveway rules rules stack up against other locations.
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