Pennsylvania Zoning & Land Use Guide
Comprehensive guide to Pennsylvania zoning laws, building codes, and land use regulations.
Key Facts
- Building Code: PA Uniform Construction Code (based on 2018 IBC)
- State ADU Law: Varies by city
Official Sources
Cities in Pennsylvania
Abington
Pop. 58,353
ADU: Allowed
Allentown
Pop. 126,092
ADU: Restricted
Bensalem
Pop. 62,516
ADU: Allowed
Bethlehem
Pop. 75,781
ADU: Restricted
Bristol Township
Pop. 53,382
ADU: Restricted
Chester
Pop. 33,429
ADU: Restricted
Easton
Pop. 28,203
ADU: Restricted
Erie
Pop. 94,831
ADU: Restricted
Harrisburg
Pop. 50,099
ADU: Restricted
Haverford Township
Pop. 49,084
ADU: Restricted
Hazleton
Pop. 27,673
ADU: Restricted
Johnstown
Pop. 18,411
ADU: Restricted
Lancaster
Pop. 63,069
ADU: Allowed
Lebanon
Pop. 26,269
ADU: Restricted
Levittown
Pop. 51,062
ADU: Restricted
Lower Merion Township
Pop. 63,864
ADU: Restricted
McKeesport
Pop. 19,731
ADU: Restricted
Millcreek Township
Pop. 53,515
ADU: Restricted
New Castle
Pop. 21,974
ADU: Restricted
Philadelphia
Pop. 1,603,797
ADU: Allowed
Pittsburgh
Pop. 302,971
ADU: Allowed
Reading
Pop. 95,112
ADU: Restricted
Scranton
Pop. 76,997
ADU: Restricted
State College
Pop. 42,034
ADU: Restricted
Upper Darby Township
Pop. 85,681
ADU: Restricted
Wilkes-Barre
Pop. 44,328
ADU: Restricted
Williamsport
Pop. 28,356
ADU: Restricted
York
Pop. 44,747
ADU: Allowed