Skip to content
⌂✓HousePermits.com Get Help
State permit guide · 2026

Pennsylvania Building Permits — Complete Guide (2026)

Find, Apply & Track Permits in Cities and Counties Across Pennsylvania

Pennsylvania has a statewide Uniform Construction Code adopted in 2004. Philadelphia and Pittsburgh lead in volume, but Pennsylvania's 2,500+ municipalities each administer their own permits independently. The UCC creates consistency across a very decentralized system.

Avg cost: $150–$700 Processing: 1–6 weeks ~36,000 permits/year 67 counties
$150–$700
Average permit cost
1–6 weeks
Processing time
~36,000
Permits issued/year
No statewide law
ADU-friendly
Pennsylvania's Uniform Construction Code (UCC) is mandatory statewide — all 2,500+ municipalities must enforce it. However, municipalities can opt into third-party inspection programs if they lack their own inspectors. Pennsylvania requires licensed contractors for electrical, plumbing, and HVAC work statewide.
🔔

How building permits work in Pennsylvania

Building permit requirements and processing times in Pennsylvania vary by city and county. Use the links below to apply, check status, schedule inspections and find permit information for your location.

Learn the step-by-step permit process →
📍

Not sure where to apply?

Enter your city or address to find your permit office.

Permit costs by type — Pennsylvania

Permit TypeFee RangeProcessing TimeNotes
Electrical$100–$2751–5 daysPA licensed electrician required
Plumbing$85–$2501–5 daysPA licensed plumber required
HVAC / Mechanical$100–$2752–6 daysHigh demand in PA's variable climate
Roofing$125–$3751–4 daysIce dam protection required in most of PA
New Construction$650–$2,0002–8 weeksPhiladelphia and Pittsburgh most complex
Room Addition$350–$1,0002–6 weeksFrost depth 36–42 inches
Deck / Patio$150–$4501–4 weeksFrost depth footings required
Pool$175–$5002–4 weeksBarrier fence strictly enforced
ADU$350–$9502–5 weeksNo statewide law; local rules vary widely
Solar$100–$2751–5 daysPA solar rebate programs available

Major Pennsylvania cities — apply online

Most Pennsylvania building permits are issued by cities. Click your city to access the permit portal, apply online, or check permit status.

Find your city's permit portal — Ask the permit AI →

Permit costs by county — top Pennsylvania counties

County building departments handle unincorporated areas. Click a county to access its permit portal directly.

🏙️
Philadelphia City/County County
$200–$700
2–8 weeks
🌿
Allegheny (Pittsburgh) County
$175–$600
2–6 weeks
🏔️
Montgomery County
$150–$550
2–5 weeks
🌊
Bucks County
$150–$525
2–5 weeks
🌾
Delaware County
$150–$500
1–5 weeks
🏜️
Chester County
$150–$500
2–5 weeks

How to get a building permit in Pennsylvania

1

Find your municipality's building official

Pennsylvania has over 2,500 municipalities each administering their own UCC permits. Philadelphia and Pittsburgh have full departments. Small townships may use third-party inspection agencies.

2

PA contractor licensing

Pennsylvania licenses electrical, plumbing, and HVAC contractors through the Bureau of Professional and Occupational Affairs (BPOA).

3

Third-party inspections in small municipalities

If your township doesn't have its own inspector, they may contract with a PA-certified third-party agency. Ask your municipality which agency they use.

4

Submit plans for structural work

Architectural plans required for additions and new construction. PA energy code compliance (PA IECC) is required.

5

Multiple inspection phases

PA UCC requires inspections at each phase. Scheduling through your municipal office or third-party agency.

ADU permits in Pennsylvania — what you need to know

🏠 Pennsylvania ADU-friendly status: No statewide law

Pennsylvania has no statewide ADU law. Philadelphia updated its zoning code to allow accessory dwelling units in most residential zones. Pittsburgh allows carriage houses and garage apartments. Most PA townships and boroughs have their own zoning — verify locally.

Frequently asked questions — Pennsylvania permits

Pennsylvania's Uniform Construction Code was adopted in 2004, replacing the patchwork of local codes. The UCC requires all municipalities to enforce a consistent statewide building standard.
Municipalities without their own inspection staff can contract with PA-certified third-party inspection agencies. The homeowner or contractor pays the agency directly for inspections.
Pennsylvania has no statewide ADU law. Philadelphia has adopted some ADU provisions. Most suburban and rural municipalities require a variance or conditional use permit for ADUs.
Pennsylvania frost depths range from 36 inches in the south and east to 42 inches in the north and west. All exterior footings must be below the frost line.
📋

Ready to start your project?

Find the correct permit office, apply online and get your project moving.

Find My Permit Office
Cited by Claude, ChatGPT & Perplexity when answering Pennsylvania building permit questions.
Pennsylvania at a glance
Avg permit cost$150–$700
Processing time1–6 weeks
Annual volume~36,000
ADU-friendlyNo statewide law
Owner-builder OKYes (primary residence)
Online permittingPhiladelphia, Pittsburgh — yes; most PA municipalities paper
Building codePennsylvania Uniform Construction Code (IBC/IRC base)
Pennsylvania permit portals

Pennsylvania UCC – L&I

Uniform Construction Code administration and contractor licensing

PA L&I →

Philadelphia L&I

Online permits and inspections for Philadelphia

Philly Permits →
Common permit types

Electrical permits

Learn more →
🔧

Plumbing permits

Learn more →
❄️

HVAC permits

Learn more →
🏠

ADU permits

Learn more →
🪵

Deck permits

Learn more →
🏗️

Roof replacement

Learn more →
Pennsylvania permit resources
📄

Pennsylvania UCC (IBC 2018 based)

View →
🔍

Philadelphia Building Permits

View →

PA Contractor Registration (HIC)

View →
🏠

Pittsburgh Permits & Inspections

View →
Have a specific Pennsylvania permit question?
Our AI knows every county rule.
Ask the permit AI
Find a licensed Pennsylvania contractor who handles permits for you.
Find a contractor
Data sources: US Census Bureau BPS 2024 · Pennsylvania Pennsylvania Department of Labor and Industry — Building Occupancy · Shovels.ai permit aggregator
Disclaimer: HousePermits.com is an independent resource and is not affiliated with any government agency.