Lehigh County, PA Building Permits, Zoning & Septic Rules

Building work in Lehigh County, Pennsylvania must follow the statewide Uniform Construction Code, with permits administered locally or through certified agencies¹. Start with the township, borough or city governing the parcel for building and zoning requirements²³. On-lot septic permits are handled locally under Act 537⁴.

At a glance

Building permit: Required before UCC-regulated work; local enforcement varies by municipality⁵²
Zoning: Ask the township, borough or city governing the parcel³
Septic permit: Required; issued by your municipality's Sewage Enforcement Officer under Act 537⁶
Owner-builder exemption: We could not confirm one; ask the local building code official⁷
Septic soil suitability: 17.8% of mapped soil is free of severe limits for a conventional drain field⁸
Effective property tax rate: 1.7% of value; median bill about $4,591/yr⁹¹⁰

Who to call

Building permits

PA Dept. of Labor & Industry - Bureau of Occupational & Industrial Safety, Building Plan Review Division

The state UCC office; it does not issue permits in Lehigh County. Your actual building permit is issued by your township, borough or city, or by its certified third-party UCC agency, not by the county or this state office

717-787-3806

[email protected]

651 Boas Street, Room 1600, Harrisburg, PA 17121-0750

Online permits →

Planning & zoning

Lehigh Valley Planning Commission

Joint Lehigh and Northampton county planning agency; reviews municipal subdivision and land development plans against the regional comprehensive plan. Zoning itself is set by each municipality, not this office

(610) 264-4544

615 Waterfront Drive, Suite 201, Allentown, PA 18102

Septic permits

PA DEP - Sewage Enforcement Officer (SEO) Program

State Act 537 program contact; the actual septic construction permit for a Lehigh County parcel is issued by your township, borough or city's own certified Sewage Enforcement Officer, found through this page's Active SEOs by County directory

Roads & driveways

Highway Occupancy Permits for a new or altered driveway onto a state highway in Lehigh County

610-871-4106

1002 Hamilton Street, Allentown, PA 18101

Online permits →

Also useful

Lehigh County - Boroughs/Townships

The county's own directory/map for identifying which of Lehigh County's townships, boroughs or cities governs a specific parcel, since zoning, building and septic authority all run through that municipality

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

Do you need a building permit in Lehigh County, Pennsylvania?

Yes. Pennsylvania's Uniform Construction Code applies to building construction in Lehigh County, and a UCC permit must be obtained before covered work starts¹⁵. Municipalities that opt in administer the code with municipal staff or certified third-party agencies; for an opt-out municipality, the Department of Labor and Industry handles commercial enforcement while an owner or contractor hires a certified third-party agency for residential enforcement². A certificate of occupancy must be issued before a UCC-regulated building or facility is used¹¹. Qualifying agricultural buildings are excluded from the Construction Code Act when they meet the statutory use limits and contain no habitable space, but municipal land-use, fire, electrical, health and environmental rules may still apply¹². Identify the township, borough or city governing the parcel, then ask its building code official who accepts the application¹³.

Who issues building and zoning permits in Lehigh County, and how do you reach them?

Start with the township, borough or city governing the Lehigh County parcel, because Pennsylvania directs local permit and zoning questions to that municipality³. The county's boroughs and townships page helps identify the correct local government¹³. For building-code enforcement, an opt-in municipality uses its own staff or a certified third-party agency; in an opt-out municipality, the state handles commercial enforcement while certified third-party agencies handle residential work². The state UCC office can answer code-administration questions at 717-787-3806 or [email protected]¹⁴. The Lehigh Valley Planning Commission is the regional planning contact at 615 Waterfront Drive, Suite 201, Allentown, with phone (610) 264-4544¹⁵. Confirm the actual application office and required forms with the governing municipality before submitting plans³.

Does Lehigh County have zoning?

We could not confirm a current countywide zoning ordinance for Lehigh County, so do not treat the county as unzoned; Pennsylvania directs zoning questions to the township, borough or city where the activity will occur³. County zoning authority in Pennsylvania is limited to land in municipalities that lack their own zoning ordinance, and a later municipal ordinance displaces county zoning within that municipality¹⁶. That structure makes the parcel's municipality the essential first check for permitted uses, setbacks, minimum dwelling size, lot coverage, building height, RV occupancy and tiny-home siting³. Subdivision rules require a separate check: a municipal subdivision and land-development ordinance controls where one exists, while a county ordinance may apply where the municipality has none¹⁷. Use the county municipality directory to identify the correct government before relying on a listing description or designing a project¹³.

How do septic permits work in Lehigh County?

On-lot septic systems in Lehigh County are permitted by each municipality's own certified Sewage Enforcement Officer under Pennsylvania's Act 537 Sewage Facilities Act, not by the county⁶. Statewide, a permit from the local agency is required before installing, constructing, occupying or using a building served by an individual or community onlot sewage system¹⁸. A limited exemption can apply to an individual system serving an owner or immediate-family residence on a contiguous tract of at least 10 acres, but only under specific ownership-date, siting and notification conditions, so do not assume it applies without checking¹⁸. After installation, the system cannot be covered until the permit issuer approves it, or until 72 hours pass after notifying them the work is done, whichever comes first¹⁹. Only 17.8% of Lehigh County's mapped soil is rated free of severe limits for a conventional septic drain field, so a site and soil evaluation from your municipality's Sewage Enforcement Officer matters before you commit to a parcel⁸. Use the state's Active SEOs by County directory to find the certified officer for your specific municipality²⁰.

Can you live in an RV or tiny home on your land in Lehigh County?

We could not confirm one Lehigh County rule that authorizes living in an RV or tiny home on private land, so ask the township, borough or city zoning officer about the exact parcel and proposed use³. Pennsylvania's state-park camping limits apply only to state-park campsites and do not establish permission for residential RV use on private land²¹. Tiny homes used as dwellings still face the statewide building-code process, and local rules may control siting, minimum size, setbacks and utilities⁵³. Manufactured housing has specialized UCC treatment, but work outside the approved design, additions, relocation and certain changes remain regulated, while the state rule does not resolve local siting or utility approval²². Before buying, get the municipality's answer on occupancy and placement and the local Sewage Enforcement Officer's answer on wastewater service³⁴.

How do you build a home in Lehigh County, step by step?

First, use the county's boroughs and townships page to identify the municipality governing the parcel¹³. Second, ask that municipality about the zoning district, proposed use, setbacks and the office or certified agency that handles UCC permits³². Third, obtain the UCC building permit before starting covered work⁵. Fourth, contact the local Sewage Enforcement Officer and obtain any required on-lot sewage permit before installation, construction or occupancy⁴¹⁸. Fifth, if the site is in a Special Flood Hazard Area, obtain the municipality's floodplain development permit before development begins²³. Finally, if the driveway connects to state-highway land, obtain a PennDOT Highway Occupancy Permit through District 5²⁴²⁵.

What should you check before buying land in Lehigh County?

Soils: 17.8% of Lehigh County's mapped soil is rated free of severe limits for a conventional septic drain field, and 77.1% of the county's land sits at a gentle 15% slope or less, so many parcels are workable but a site evaluation from the local Sewage Enforcement Officer is still the only way to know for a specific lot⁸²⁶. Flood: a Pennsylvania municipality must issue its own floodplain development permit before work can begin in a designated Special Flood Hazard Area, so check your parcel against your township or borough's floodplain ordinance before you buy²³. Access: a driveway or road connecting to a state highway needs a PennDOT Highway Occupancy Permit from District 5, usually issued within about 30 days when the application is complete²⁴²⁵. Water: a homeowner or farmer can drill their own well without the commercial driller's license Pennsylvania requires for well-drilling companies, though the state sets construction standards only for public water-supply wells, not private ones²⁷. Taxes: Lehigh County's typical effective property tax rate is 1.7% of value, with a median annual property tax bill of about $4,591⁹¹⁰.

Watch-outs

We could not confirm a current countywide zoning ordinance for Lehigh County; ask the township, borough or city governing the parcel about zoning rather than treating the land as unrestricted³.
Pennsylvania's state park campground stay limits (14 nights in summer, 21 the rest of the year) govern state park campsites, not whether you can live in an RV on your own land in Lehigh County; do not use them to judge that question²¹.
The Sewage Enforcement Officer who actually permits your septic system is your municipality's own, not a county or single statewide office; use the state's Active SEOs by County directory to find the right one²⁰.

Sources

Written September 28, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

How Lehigh County scores

Seclusion15100% ev.

Self-Sufficiency66100% ev.

Admin Boringness5890% ev.

Durability78100% ev.

Property Autonomy68100% ev.

Carry Cost56100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$370kTypical home

1.7%Property tax

$9,925Land / acre

49"Annual rain

1.7% of yrsSevere drought

2.9 / yr (+2.8)Mid-century 100°F days

12.2 daysMid-century dry spell

2.3" (+8.7%)Mid-century 1-day rain

1.49×Wildfire change factor

100%Forward climate coverage

$1,172Home insurance / yr

0.9% / yrInsurance growth

0.42%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

346,671People within 30 min

18,194,862People within 2 hr

613,721Radius comparison (15 mi)

1,093.9People / sq mi

0.3%Federal land

77.1%Land at 15% slope or less

17.8%Septic soil without severe limits

37,770 acWorkable land screen

93.8 tonsBiomass / forest ac

51.7°FAvg temp

Answers from the rulebook for Lehigh County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Lehigh County rules

Local zoningVaries (with conditions)
Aggregate local zoning requirements across Lehigh County.
- Requirements are administered by the township, borough, or city where the activity will occur; municipal rules may differ.
“Local registrations, permits, zoning requirements and related questions should be directed to the township, borough, or city where you will be operating.”
Local Registrations, Permits, Zoning ↗Re-checked Sep 29, 2026
Who permits septicLocal (with conditions)
On-lot sewage permitting and enforcement in Lehigh County municipalities.
- Local Agency may be a municipality, combination of municipalities, county department of health, or joint county department of health.
- Joint Local Agencies may perform permitting and enforcement across a larger service area.
“Local Agencies are responsible for carrying out on-lot or onsite ("septic system") sewage treatment system permitting and enforcement activities.”
Municipal On-Lot Sewage Service Areas ↗Re-checked Sep 29, 2026
Septic permitRequired
Retaining tanks and individual or community on-lot sewage systems in Lehigh County.
- Local agencies issue permits; large-volume on-lot systems are an exception to the local-agency responsibility described by DEP.
“With certain exceptions (i.e. large volume on-lot systems), local agencies are responsible for issuing permits for retaining tanks or for individual and community on-lot sewage systems which renovate sewage effluent in a soil absorption area or spray field.”
Municipal On-Lot Sewage Service Areas ↗Re-checked Sep 29, 2026
County-wide zoningAbsent
Zoning in Lehigh County is administered by individual municipalities under the PA Municipalities Planning Code; the county administers subdivision/land development (SALDO), not county-wide zoning.
Lehigh County Ordinances (Subdivision and Land Development) ↗Scouted from the county site, not yet independently re-checked

Pennsylvania rules that apply here

Building permitRequired
Construction or building work in Lehigh County subject to the Pennsylvania UCC.
- Emergency repairs or equipment replacements may be made without a permit if an application is submitted to the building code official within three business days.
- Requirements may be administered locally or by a certified third-party agency.
“The UCC requires property owners to obtain a construction or building permit before starting any work.”
Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 29, 2026
Building code adoptedAdopted
Building construction throughout Pennsylvania under the Pennsylvania Uniform Construction Code.
- The UCC is administered and enforced locally by municipalities that opt in, using municipal employees or certified third-party agencies.
- In municipalities that opt out, the Department of Labor and Industry is responsible for commercial code enforcement, while certified third-party agencies hired by property owners or contractors enforce residential UCC requirements.
- The Department has sole jurisdiction for elevators and state-owned buildings wherever located.
- The 2021 accessibility updates are permanently enjoined; structures must still comply with the 2018 accessibility requirements, and the injunction does not affect enforcement of non-accessibility UCC requirements.
- The revised regulations adopting the 2018 I-Code series became effective February 14, 2022. Contract-based transition rules allow certain projects with contracts signed before that date to use the UCC in effect at the time of contract if application was made by August 14, 2022 or earlier.
- The 2021 I-Code accessibility provisions became effective December 25, 2021, with a contract-based transition period allowing applications by June 25, 2022 or earlier.
- Pennsylvania's Uniform Construction Code triennial update was published November 8, 2025 and became effective January 1, 2026.
2018 I-Code regulations effective date: 2022-02-14 (For contracts signed before this date, application and permit issuance under the UCC in effect at the time of contract were allowed if application was made by 2022-08-14.) · 2021 I-Code accessibility provisions effective date: 2021-12-25 (For contracts signed before this date, application and permit issuance under the UCC in effect at the time of contract were allowed if application was made by 2022-06-25.) · 2025 triennial UCC update effective date: 2026-01-01
“Pennsylvania's statewide building code, generally known as the Uniform Construction Code (UCC), has to be followed by builders in the state.”
Uniform Construction Code (UCC) ↗Re-checked Sep 12, 2026
2 more reviewed findings on this topic
- Adopted (with conditions) — Building construction in Pennsylvania, including Lehigh County.
  “Pennsylvania's statewide building code, generally known as the Uniform Construction Code (UCC), has to be followed by builders in the state.”
  Uniform Construction Code ↗Re-checked Sep 26, 2026
- Adopted (with conditions) — Pennsylvania Uniform Construction Code requirements applicable to building projects in Lehigh County.
  “Pennsylvania's statewide building code, generally known as the Uniform Construction Code (UCC), has to be followed by builders in the state.”
  Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 29, 2026
InspectionsLimited
UCC-regulated construction and specified building systems in Lehigh County.
- Inspections are required in several listed cases, including construction or changes to commercial or residential buildings; electrical, gas, mechanical, or plumbing systems; pools or hot tubs; and manufactured or industrialized housing work.
“Inspections are also necessary in several cases, including construction or changes to commercial or residential buildings, electrical, gas, mechanical or plumbing systems, and the installation of swimming pools or hot tubs.”
Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 29, 2026
Certificate of occupancyRequired
Use of a UCC-regulated building or facility in Pennsylvania, including Lehigh County.
- A certificate of occupancy must be issued before use of the building or facility.
- Required inspections and final compliance findings precede issuance.
“must be issued before a building or facility can be used”
Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Required — Use or occupancy of a UCC-regulated building or facility in Lehigh County.
  “A UCC certificate of occupancy must be issued before a building or facility can be used.”
  Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 29, 2026
Zoning districtsPartial
Pennsylvania zoning requirements and district information; the official state source directs applicants to the local township, borough, or city.
- Local registrations, permits, and zoning requirements must be addressed with the township, borough, or city where the activity will occur.
- The source does not publish a statewide zoning-district map or a single statewide zoning-district schedule.
- This claim does not identify or aggregate individual municipal zoning districts.
“Local registrations, permits, zoning requirements and related questions should be directed to the township, borough, or city where you will be operating.”
Local Registrations, Permits, Zoning ↗Re-checked Sep 12, 2026
Manufactured homesLimited
Manufactured housing assembled and shipped by the manufacturer and bearing the required federal-construction-and-safety label, including changes in occupancy, resale, relocation, additions, repairs, utility connections, and grading addressed by Pennsylvania's Uniform Construction Code.
- For new labeled manufactured housing installed in conformity with the manufacturer's approved design, the UCC does not apply except as provided in the regulation.
- Construction activities or processes, including utility connections and grading, that are not addressed by the manufacturer's approved design must comply with the UCC.
- The UCC applies to alterations or repairs outside the federal manufactured-home standards and manufacturer installation instructions after assembly and shipment.
- The UCC applies to additions after delivery to the site.
- The UCC applies to construction, alteration, repair, or change of occupancy if the manufactured housing is resold to a subsequent purchaser.
- The UCC applies to construction, alteration, repair, or change of occupancy if the original purchaser relocates the manufactured housing.
- Pennsylvania building-permit guidance states that manufactured housing projects require inspections for site preparation, foundation construction, repairs, and changes in occupancy.
- This state construction-code rule does not resolve local zoning, land-use siting, or utility/septic approval requirements.
“Construction, alteration, repair or change of occupancy if the original purchaser relocates the manufactured housing.”
Pennsylvania Uniform Construction Code, Chapter 403 ↗Re-checked Sep 12, 2026
Septic inspectionLimited
Individual and community sewage-disposal systems before concealment or covering after construction.
- The system may not be covered until approval to cover is given by the original permit issuer or authorized representative.
- If 72 hours have elapsed after notification of construction completion, excluding Sundays and holidays, the applicant may cover the system unless permission has been refused.
post-completion waiting period: 72 hours (Sundays and holidays excluded.)
“shall be covered from view until approval to cover the same has been given by the body which issued the original permit”
Pennsylvania Sewage Facilities Act ↗Re-checked Sep 12, 2026
Off-grid sanitationLimited
Composting, incinerating, recycling, and similar water-conservation toilets used for residential or establishment sanitation statewide.
- For a new residence or establishment, an onlot sewage system or other approved disposal method must treat washwater or excess liquid, and both facilities must be under one permit, except for the retaining-tank exception.
- For an existing residence or facility with no alteration of the onlot system, no permit is required for installation.
- A composting or incinerating toilet on a qualifying retaining-tank lot is treated as and permitted as a privy.
- The device must meet manufacturer specifications and be operated and maintained to prevent pollution or health hazards.
- Liquid discharges are prohibited unless sent to a compliant onlot sewage system or another method approved under the chapter or by DEP.
- Recycling, incinerating, and composting toilets must bear the NSF Standard No. 41 seal.
“an onlot sewage system or other approved method of sewage disposal shall be provided for treatment of washwater or excess liquid from the unit”
25 Pa. Code § 73.65. Recycling toilet, incinerating toilet or composting toilet ↗Re-checked Sep 12, 2026
Well permitLimited
Water-well drilling statewide, distinguishing commercial water-well drillers from farmers and homeowners drilling their own wells on owned or leased land.
- Water-well drilling companies must obtain a license and permits.
- The licensing requirement does not apply to farmers or homeowners who drill their own water wells on their own or leased land.
- The state has construction standards for public water-supply wells but not private water wells.
- Drillers must submit the well's construction details to the state and the well owner.
driller license year: June 1-May 31 · annual driller license fee: 60 USD · rig permit fee: 20 USD
“Water well drilling companies must get a license and permits to drill a well in Pennsylvania.”
Apply for a Water Well Drillers License and Rig Permit ↗Re-checked Sep 12, 2026
Agricultural exemptionAvailable (with conditions)
Qualifying agricultural buildings under Pennsylvania's Construction Code Act and Uniform Construction Code.
- The exemption applies to an agricultural building as defined by the Act: a structure used to store farm implements, hay, feed, grain, or other agricultural or horticultural products; house poultry, livestock, or other farm animals; serve as a milk house; or grow mushrooms, agricultural, or horticultural products.
- The definition includes a qualifying carriage house owned and used by members of a recognized religious sect for housing horses and storing buggies.
- The definition includes a structure less than 1,000 square feet used to process maple sap.
- The structure must not include habitable space.
- The structure must not contain spaces where agricultural products are processed, treated, or packaged.
- The structure is not a place of occupancy by the general public.
- Other municipal land-use, zoning, fire, electrical, health, or environmental requirements may still apply; the cited exclusion is from the Construction Code Act.
maple sap processing structure area: < 1000 square feet (Must otherwise meet the statutory agricultural-building definition.)
“(b) Exclusions.--This act shall not apply to any of the following: [...] (4) Any agricultural building.”
Pennsylvania Construction Code Act — Chapter 1 ↗Re-checked Sep 12, 2026
Subdividing landRegulated (with conditions)
Subdivision and land development within Pennsylvania municipalities that enact or apply a subdivision and land development ordinance under the Pennsylvania Municipalities Planning Code.
- The governing body of each municipality may regulate subdivisions and land development by ordinance.
- Subdivision and land-development plats must be submitted for approval to the governing body or a designated planning agency.
- Where a municipality has enacted an ordinance under Article V, subdivision or land development may not proceed except in accordance with that ordinance.
- A county subdivision and land-development ordinance may apply where the municipality has no subdivision and land-development ordinance in effect; a municipality may also adopt the county ordinance by reference.
- The cited statute does not establish one statewide numeric subdivision standard; local ordinances and applicable county review determine the requirements.
“Section 501. Grant of Power.--The governing body of each municipality may regulate subdivisions and land development within the municipality by enacting a subdivision and land development ordinance. The ordinance shall require that all subdivision and land development plats of land situated within the municipality shall be submitted for approval to the governing body or, in lieu thereof, to a planning agency designated in the ordinance for this purpose, in which case any planning agency action shall be considered as action of the governing body.”
Pennsylvania Municipalities Planning Code ↗Re-checked Sep 12, 2026
Driveway accessRequired
Construction or alteration of a driveway or road on Pennsylvania state highway land, and access connecting to a PennDOT drainage facility.
- A permit is required when building or changing a driveway, road, drainage, or utility facility on state highway land.
- A permit is also required when the work connects to a PennDOT drainage facility.
- Permits are usually given within 30 days when the application contains all needed information and complies with PennDOT regulations.
- The claim does not establish a universal permit requirement for driveways not involving state highway land or a PennDOT drainage facility.
usual review or issuance time: 30 days (The source states “usually” and conditions this on complete information and compliance with PennDOT regulations.)
“You need a permit when you're building or changing a driveway, road, drainage or utility facility on the state highway land.”
Apply for a PennDOT Highway Occupancy Permit ↗Re-checked Sep 12, 2026
Building in a floodplainRequired
Development activities within a Special Flood Hazard Area in Pennsylvania municipalities.
- Municipalities must evaluate whether a project is within the SFHA and identify the type of work.
- Municipalities must review permit applications and issue or deny permits for SFHA development.
- Municipalities must conduct periodic inspections for compliance with proposed plans and the floodplain ordinance.
- After completion, municipalities review required certificates and issue a certificate of occupancy when the development complies with the local floodplain ordinance.
- Additional zoning permit requirements may apply when proposed land use changes.
“A floodplain development permit (or its equivalent) must be issued by the municipality before development activities occur within the SFHA.”
PennsylvaniA Floodplain Development Guide ↗Re-checked Sep 12, 2026
Permit processPublished (with conditions)
Pennsylvania Uniform Construction Code building permits for construction and building work subject to the UCC.
- A UCC building permit must be obtained before starting work.
- Inspections are required in several listed cases, including commercial or residential building changes, electrical, gas, mechanical or plumbing systems, swimming pools or hot tubs, and specified manufactured or industrialized housing work.
- A UCC certificate of occupancy must be issued before a building or facility can be used.
- Emergency repairs or equipment replacements may proceed without a permit if an application is submitted to the building code official within three business days.
“The UCC requires property owners to obtain a construction or building permit before starting any work.”
Apply for a Uniform Construction Code Building Permit ↗Re-checked Sep 12, 2026
Campground & park staysLimited
RV use and occupancy at Pennsylvania state park campgrounds.
- Use must occur at a state park campground and comply with campsite rules.
- Campers may stay up to 14 consecutive nights from Memorial Day to Labor Day.
- Campers may camp up to 21 consecutive nights during the remainder of the year.
- Campers must vacate and remove all equipment for 48 hours between reservations.
- A maximum of two sleeping units is permitted per campsite, of which only one may be wheeled.
- Campsite occupancy is limited to one family unit or one non-family unit limited to five persons per site.
- The page does not establish statewide permission for long-term or residential RV occupancy outside state park campgrounds.
maximum stay, Memorial Day to Labor Day: 14 consecutive nights · maximum stay, remainder of year: 21 consecutive nights · equipment-removal interval between reservations: 48 hours · maximum sleeping units per campsite: 2 units (Only one may be wheeled.) · maximum non-family occupancy: 5 persons per site (One family unit is permitted instead.)
“maximum of two sleeping units are permitted per campsite, of which only one may be wheeled.”
RV and Tent Campsites ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Limited — Temporary camping at Pennsylvania state park campgrounds.
  “Campers may camp for up to 21 consecutive nights”
  RV and Tent Campsites ↗Re-checked Sep 12, 2026
county zoning authorityLimited
Pennsylvania counties adopting and enforcing zoning ordinances on unincorporated land.
- The Municipalities Planning Code defines county for this authority as any county of the second class through eighth class.
- County zoning power is limited to land in municipalities wholly or partly within the county that have no zoning ordinance in effect when the county ordinance is introduced and until the municipality's zoning ordinance becomes effective.
- A municipality's later zoning ordinance repeals the county zoning ordinance pro tanto within that municipality.
“Section 602. County Powers.--The powers of the governing bodies of counties to enact, amend and repeal zoning ordinances shall be limited to land in those municipalities, wholly or partly within the county, which have no zoning ordinance in effect at the time a zoning ordinance is introduced before the governing body of the county and until the municipality's zoning ordinance is in effect.”
Pennsylvania Municipalities Planning Code ↗Re-checked Sep 21, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Owner-builder exemption — Owner-builder exemption from building-code permitting or licensing in Lehigh County.
Minimum dwelling size — Minimum dwelling size in Lehigh County.
Minimum lot size — Minimum lot size in Lehigh County.
Setbacks — Building setbacks in Lehigh County.
Lot coverage — Lot coverage in Lehigh County.

8 more unanswered

Building height
Living in an RV
Camping on your land
Tiny homes
Accessory dwellings
Mandatory utility hookup
Short-term rentals
Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Lehigh County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Pennsylvania’s water agency.

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

Household wellExempt — no permit or water right

Pennsylvania does not permit private water wells (reasonable-use doctrine). Large withdrawals may need DRBC approval (>10,000 gpd inside the SE PA Ground Water Protected Area) or SRBC approval (>=100,000 gpd), but a household well is far below every threshold.

Limit: no state permit (unregulated private wells)

PA DEP — Private Wells ↗

Southeastern Pennsylvania Ground Water Protected Area (DRBC)localized of county
DRBC protected area where new/expanded withdrawals averaging >10,000 gpd need a DRBC Protected Area Permit (vs 100,000 gpd elsewhere) because development lowered water tables and depleted streams. Household wells (~200-400 gpd) are below the threshold and unaffected; only Montgomery is wholly included.
Delaware River Basin Commission — SEPA GWPA ↗

Riparian state (water rights tied to land). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Pennsylvania state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Lehigh County, Pennsylvania

Is Lehigh County a good place to live off-grid or homestead?

Lehigh County scores 49/100 on the Bolthole Index, a solid county profile. Its strengths: a durable current and mid-century hazard profile and a stronger property-autonomy legal backdrop. Watch-outs: about 346,671 people within a 30-minute drive.

Do you need a building permit in Lehigh County, Pennsylvania?

Lehigh County generally requires a residential building permit, and it has no county-wide zoning. Onsite septic is permitted by Municipal Sewage Enforcement Officer (SEO) under PA DEP Act 537. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Lehigh County, Pennsylvania?

Land in Lehigh County runs about $9,925 per acre, based on the latest county data.

What is the water situation in Lehigh County?

Lehigh County gets about 49" of rain a year, with severe drought in roughly 1.7% of years. On water rights, Lehigh County lies in the Southeastern Pennsylvania Ground Water Protected Area (DRBC) — DRBC protected area where new/expanded withdrawals averaging >10,000 gpd need a DRBC Protected Area Permit (vs 100,000 gpd elsewhere) because development lowered water tables and depleted streams. Household wells (~200-400 gpd) are below the threshold and unaffected; only Montgomery is wholly included..

How remote is Lehigh County?

A representative private-land location has about 346,671 people within a 30-minute drive and 18,194,862 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits, zoning and septic rules in Lehigh County, Pennsylvania

At a glance

Who to call

Do you need a building permit in Lehigh County, Pennsylvania?

Who issues building and zoning permits in Lehigh County, and how do you reach them?

Does Lehigh County have zoning?

How do septic permits work in Lehigh County?

Can you live in an RV or tiny home on your land in Lehigh County?

How do you build a home in Lehigh County, step by step?

What should you check before buying land in Lehigh County?

Watch-outs

Sources

Lehigh County in Pennsylvania

How Lehigh County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Lehigh County

Lehigh County rules

Pennsylvania rules that apply here

Still unanswered

Water rights & wells in Lehigh County

Living off-grid in Lehigh County, Pennsylvania

Is Lehigh County a good place to live off-grid or homestead?

Do you need a building permit in Lehigh County, Pennsylvania?

How much does land cost in Lehigh County, Pennsylvania?

What is the water situation in Lehigh County?

How remote is Lehigh County?

How Lehigh compares in Pennsylvania