Every city and county we cover, each with the permit rule that applies there, the code edition it publishes and the department's number where it publishes them.
Pennsylvania adopts one building code for the whole state: the Uniform Construction Code, set by Department of Labor and Industry regulation at 34 Pa. Code 403.21. A municipality that enforces the code must enact an ordinance adopting the Uniform Construction Code as its building code. A municipality may stop enforcing it on 180 days' notice to the Department. Even then the Uniform Construction Code still applies, and permits and inspections are handled through third-party agencies or the Department. A municipality may enact standards that equal or exceed the Uniform Construction Code, subject to the Department's review. It may not adopt a lower or different edition. No population limit lets a small town skip the code.
Check your own city before anyone quotes you. The permit and code facts come from each jurisdiction's own published page or codified ordinance, the housing figures from the Census Bureau and the hail counts from NOAA's Storm Prediction Center, and every page says where each came from. Where a city does not publish something — a building official's name, a permit answer, a code edition — we leave it blank rather than filling it in.
The housing figures are the Census Bureau's for the whole county (2020–2024 estimates); the hail column counts reports of hail 1 inch or larger logged by NOAA's Storm Prediction Center from 2016 through 2025. Reports come from spotters and the public, so busier counties log more.
| County | Pages | Homes | Median built | Built before 2000 | Hail reports |
|---|---|---|---|---|---|
| Cumberland County, PA | 16 | 111,278 | 1978 | 76% | 3 |
| Dauphin County, PA | 19 | 127,828 | 1972 | 83% | 13 |
| Perry County, PA | 5 | 20,049 | 1976 | 83% | 5 |
Researched 2026-11-09 from municipal and county sources. Trueline Roofers is a service-area business serving the Harrisburg-Carlisle, Pennsylvania metro.
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