In Lehigh County — the heart of the Lehigh Valley, anchored by Allentown — building permits are issued at the municipal level by each city, borough, and township (or its certified third-party agency), not by the county. All enforce the statewide UCC.
This guide covers what requires a permit, each municipality's permitting process, fees, trade permits, and inspections — so your Lehigh County project stays on track.
Lehigh County combines Allentown, growing suburbs, and townships, with major warehouse/logistics and residential growth along the I-78/Route 22 corridor. Building permits come from your specific municipality — there is no unincorporated land and the county does not issue building permits. Many townships use certified third-party agencies. Lehigh River and creek corridors bring floodplain considerations. Confirm your municipality and its enforcement model first.
Pennsylvania enforces a statewide Uniform Construction Code (UCC), established by the Pennsylvania Construction Code Act and administered by the Department of Labor & Industry (L&I) through its Bureau of Occupational & Industrial Safety, with updates reviewed by the UCC Review & Advisory Council (RAC). As of July 13, 2025, the UCC adopts the 2021 ICC code series (IBC, IRC, IMC, IPC, IFGC, IECC) with Pennsylvania amendments (2018 accessibility provisions remain in effect). Crucially, Pennsylvania is fully municipalized — there is no unincorporated land, and building permits are issued at the municipal level (city, borough, or township) or its certified third-party agency. Over 90% of Pennsylvania's 2,562 municipalities have opted in to local enforcement; in opt-out municipalities, L&I handles commercial enforcement and a property owner hires a certified third-party agency for residential. Municipalities may adopt local amendments only to make the code more restrictive, never less.
What requires a building permit in Lehigh County?
Under locally adopted codes, a permit is required for most construction activities:
Permit required
- New residential and commercial construction, additions, conversions
- Structural and load-bearing alterations
- Reroofing, windows, siding, and exterior modifications
- Electrical service changes and most wiring work
- HVAC installations, changeouts, and ductwork
- Plumbing alterations, repipes, water heaters
- Decks, porches, fences, patios, pools, garages
- Change of occupancy or use, sign installation
Typically exempt
- Painting, wallpapering, tiling, carpeting, cabinet installation
- Countertop replacement and similar finish work
- Minor repairs replacing existing materials in kind
- Small one-story detached accessory structures below the local size threshold (verify locally)
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without a permit anywhere in Lehigh County can result in fines, stop-work orders, and mandatory removal of unpermitted work — enforced by the municipality or its third-party agency.
Who handles permitting in Lehigh County?
The Municipal code offices handles plan review, permit issuance, and construction inspections. Permits are managed through each municipality's permitting process.
| Detail | Information |
|---|---|
| Authority | Municipal — each city/borough/township code office |
| Examples | Allentown, Emmaus, Whitehall Twp., Upper Macungie Twp. |
| Enforcement | Local or certified third-party agency |
| Floodplain | Lehigh River / creek corridors |
| Code | UCC — 2021 ICC series (statewide) |
| Contractor | State HIC + any local licensing |
Identify your municipality, then apply to its code office or third-party agency. Submit plans with any floodplain documentation, ensure your HIC registration is on file, pay fees, and schedule UCC inspections.
Lehigh County building permit cost
Lehigh County permit fees are set locally per municipality (plus the statewide UCC surcharge). Trade permits are billed separately.
| Fee component | How it works |
|---|---|
| Residential building permit | Valuation-based per the local fee schedule |
| Commercial building permit | Valuation-based — varies by scope, occupancy, and area |
| Plan review | Calculated per the adopted fee schedule |
| Trade permits (E / P / M) | Separate fees per trade |
| Re-inspections / revisions | Additional fees may apply |
| Work-without-permit | Penalties, stop-work orders, and possible removal of unpermitted work |
Want a precise number for a specific Lehigh County project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Lehigh County trade permits
Electrical, plumbing, and mechanical work each needs its own permit and appropriately licensed tradespeople.
Electrical permits
Required for service installations, panel upgrades, solar PV, EV chargers, and most wiring alterations. Pennsylvania has no statewide electrician license — electrical licensing is handled by the municipality (e.g., Philadelphia and Pittsburgh license electrical contractors). Work is inspected against the National Electrical Code as adopted by the UCC, typically by the municipality or a certified third-party agency.
Plumbing & gas permits
Required for new plumbing, repipes, water-heater changeouts, fixtures, backflow, and sewer/gas connections. Plumber licensing in Pennsylvania is local — issued by the municipality or, in some areas, a county/city health department (e.g., Philadelphia and Allegheny County license plumbers). Work is inspected against the plumbing provisions of the UCC.
Mechanical (HVAC) permits
Required for HVAC installations, changeouts, ductwork, and venting. Pennsylvania has no statewide HVAC license; mechanical licensing is handled locally where required (e.g., Philadelphia). Work is inspected against the mechanical and fuel-gas provisions of the UCC.
Miscellaneous & specialty
Fencing, pools, decks, sheds, and patio covers may require special permits depending on size and utility hookups. Demolition, sign, and right-of-way permits follow separate tracks.
Verify contractor registration & local licensing. Pennsylvania has no statewide general contractor or trade license. Instead, under the Home Improvement Consumer Protection Act, any contractor performing more than $5,000 of home-improvement work per year must hold a Home Improvement Contractor (HIC) registration with the Pennsylvania Office of Attorney General (renewed every two years; this is a registration, not a license — no exam). Trade licensing (electrical, plumbing, HVAC) and general-contractor licensing are handled locally: Philadelphia (Dept. of Licenses & Inspections) and Pittsburgh (Dept. of Permits, Licenses & Inspections) run their own contractor and trade licenses, and cities like Allentown, Erie, Reading, and Scranton also license locally. Verify HIC registration at the PA Attorney General HIC search.
How to get a building permit in Lehigh County
Identify the municipality & its UCC enforcement
Determine which city, borough, or township your property is in (Lehigh County has no unincorporated land). Confirm whether that municipality has opted in (local or third-party enforcement) or opted out (L&I commercial; third-party residential).
Confirm permit requirement & zoning
Contact that municipality's code office (or its third-party agency). Confirm zoning, the correct permit type, and whether your project requires a permit. Verify any floodplain requirements before applying.
Prepare your application package
Assemble the permit application, site plan, construction drawings (sealed by a Pennsylvania-licensed design professional where required), scope and valuation, HIC registration number, and proof of insurance.
Submit to the enforcing agency
Submit to the municipality, its certified third-party agency, or — in opt-out municipalities for commercial work — Pennsylvania L&I. Upload required documents and pay fees.
Plan review & corrections
The enforcing agency reviews against the UCC (2021 ICC series). Address any correction notices promptly.
Inspections & Certificate of Occupancy
Schedule UCC inspections (footing/foundation, framing, rough-in MEP, final) with the enforcing agency. A Certificate of Occupancy is required before legal occupancy.
Inspections in Lehigh County
Inspections in Lehigh County are scheduled with the enforcing municipality or its certified third-party agency. UCC checkpoints include footing/foundation, framing, rough-in MEP, and final. A Certificate of Occupancy is required before legal occupancy.
Address correction notices before requesting a re-inspection; a final inspection and Certificate of Occupancy are required before legal occupancy or use.
Official Lehigh County permitting resources
- 🏛️ Lehigh County, PA
- 💻 County Planning Commission
- 📜 PA Uniform Construction Code (L&I)
- 🪪 PA Attorney General HIC Search
- 🏛️ PA UCC Resources (PHRC)
Simplify Lehigh County permitting with Alliance Permitting
Lehigh County’s permitting process, the statewide Uniform Construction Code (UCC), and Pennsylvania’s municipal/third-party enforcement model reward applicants who prepare complete packages from the start. Alliance Permitting is a permit expediter for Lehigh County — our permit expediting services pair AI-driven document review with experts who know the Municipal code offices (Lehigh Co. municipalities) process, so your Lehigh County submissions move faster.
Trusted by leading builders and brands — including Dream Finders Homes, Tesla, Verizon, Hyatt, and Sunnova.
Contractors and builders choose Alliance for Lehigh County because we deliver:
- Local expertise — we know Municipal code offices (Lehigh Co. municipalities), each municipality's permitting process, and Pennsylvania’s UCC and local licensing requirements.
- Complete oversight — track every permit and inspection across all your jobs in one place.
- Error-free submissions — AI pre-checks plus expert review catch issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
Need a Lehigh County building permit?
Get your Lehigh County project permitted right. Alliance Permitting handles your applications through each municipality's permitting process — so you build, not wait.
More Pennsylvania permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with the Municipal code offices before filing. This is not legal advice.