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Jurisdiction directory

Pennsylvania home project permits by county

Many Pennsylvania households live outside city limits, where the county building department — not a city — issues the permit. 13 Pennsylvania counties, covering the state's largest jurisdictions, are inventoried here.

Model reviewed August 2026

Counties covered

13

largest jurisdictions first

Municipalities tracked

14

in Pennsylvania

Population covered

8.2M

residents in listed counties

Code basis

Statewide

Pennsylvania Uniform Construction Code, based on the IRC

Featured counties

The largest and most active permit jurisdictions in the state.

Philadelphia County1,550,000 residents · seat PhiladelphiaAllegheny County1,236,000 residents · seat PittsburghMontgomery County866,000 residents · seat NorristownBucks County645,000 residents · seat DoylestownDelaware County576,000 residents · seat MediaLancaster County557,000 residents · seat LancasterChester County546,000 residents · seat West ChesterYork County462,000 residents · seat YorkBerks County429,000 residents · seat ReadingLehigh County379,000 residents · seat AllentownNorthampton County315,000 residents · seat EastonLuzerne County325,000 residents · seat Wilkes-BarreDauphin County288,000 residents · seat Harrisburg

All Pennsylvania counties we cover

13 counties, largest first.

Philadelphia CountySeat: Philadelphia · 1,550,000 residentsAllegheny CountySeat: Pittsburgh · 1,236,000 residentsMontgomery CountySeat: Norristown · 866,000 residentsBucks CountySeat: Doylestown · 645,000 residentsDelaware CountySeat: Media · 576,000 residentsLancaster CountySeat: Lancaster · 557,000 residentsChester CountySeat: West Chester · 546,000 residentsYork CountySeat: York · 462,000 residentsBerks CountySeat: Reading · 429,000 residentsLehigh CountySeat: Allentown · 379,000 residentsLuzerne CountySeat: Wilkes-Barre · 325,000 residentsNorthampton CountySeat: Easton · 315,000 residentsDauphin CountySeat: Harrisburg · 288,000 residents

Sources

Sources & verification

Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.