Building permits, zoning and septic rules across Pennsylvania

At a glance

Building permits

0 counties listed with none; 6 limited; 61 required; covered residential construction still needs UCC approval²⁷⁸¹

Countywide zoning

54 counties without countywide zoning; 13 with zoning; township, borough or city rules may still apply³⁹⁴

No building permit and no zoning

0 counties listed with both.¹⁰

Septic permits

Usually the local agency serving the municipality; DEP provides oversight.⁵

RV living

County-level answers for 3 counties: 2 limited, 1 prohibited, none allowed; municipal permission remains separate.⁶

Tiny homes

One county-level answer (Warren County: limited); 66 counties unanswered; statewide tiny-home permission unconfirmed.¹¹

Owner-builder

Unpaid work on your own residence is excluded from home-improvement regulation; local licensing and UCC requirements remain separate.¹²¹

Wells

Commercial drillers need state licensing and permits; homeowners drilling on their own or leased land are exempt from licensing.¹³

Who to call

Contact details are copied from each office’s official page and were checked against it on October 13, 2026.

Which Pennsylvania counties don't require a building permit?

No Pennsylvania county is listed with no residential building-permit requirement: 61 are listed as required and 6 as limited, meaning approval is needed in some cases.²⁸⁷ The county comparisons concern unincorporated land; Pennsylvania assigns ordinary UCC administration to municipalities, with residential enforcement by certified third-party agencies in opt-out municipalities.¹⁴

The limited category includes Clearfield County, Jefferson County, Cambria County, Crawford County, Columbia County, Dauphin County; that category does not waive statewide UCC requirements for a covered home.⁷¹ Ask the municipality's building code official who will review the plans and inspect construction.¹⁵ Pennsylvania's owner-builder rule concerns contractor regulation, rather than a building-permit exemption; see owner-builder county options.¹²¹ Qualifying agricultural buildings are excluded from the Construction Code Act, but cannot include habitable space.¹⁶ Manufactured homes bearing the federal label are largely outside the UCC when installed to the manufacturer's design, but utility connections, grading, additions, resale and relocation bring the UCC back in.¹⁷

Which Pennsylvania counties have no zoning?

Pennsylvania has 54 counties without countywide zoning and 13 with county zoning.³⁹ The highest-scoring counties without countywide zoning include Clearfield County, Jefferson County, Venango County, Juniata County, Tioga County, Potter County, Elk County, Fulton County.³

A Pennsylvania county's absence of zoning does not settle a township's zoning requirements: county zoning authority applies where the municipality lacks its own effective zoning ordinance.⁴ Use the Pennsylvania no-zoning county list to narrow the search, then ask the township, borough or city about the parcel's permitted uses.³¹⁸ We could not confirm uniform statewide minimum lot size, dwelling size or setbacks; ask the municipal zoning office for the parcel's district standards. Subdivision approval is another decision, and a county subdivision ordinance may apply where a municipality has no ordinance of its own.¹⁹

Who issues septic permits in Pennsylvania?

Most Pennsylvania on-lot septic permitting is administered by local agencies, including municipalities, cooperating municipalities and county health departments; DEP supplies technical oversight.⁵ The county categories list 18 state-agency, 43 district and 6 county assignments, but those broad labels do not resolve the local issuer for a parcel.²⁰⁵ Ask the municipality which local sewage agency serves the address before arranging construction.⁵

Pennsylvania generally requires the local septic permit before installation, contracting for construction, construction, occupancy or use of a building served by an on-lot system.²¹ A possible exemption for an owner or immediate-family residence on at least 10 contiguous acres has ownership-date, local-ordinance, notification and siting conditions; acreage alone does not establish eligibility.²¹ A composting toilet in a new home still needs approved disposal of washwater or excess liquid under the applicable permit.²² A septic system may not be covered until the permit issuer approves it; if 72 hours pass after notice of completion, excluding Sundays and holidays, the installer may cover it unless permission was refused.²³ We could not confirm a statewide septic application fee; ask the local sewage agency for its fee schedule.

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

County-level RV answers exist for only 3 Pennsylvania counties: Warren County and Schuylkill County are limited, and Luzerne County is prohibited; the other 64 have no confirmed county-level answer.⁶ None of the 3 is a plain "allowed," and a county answer does not establish municipal permission to live in an RV.⁶

For tiny homes, only Warren County has an answer, listed as limited; 66 counties are unanswered.¹¹ Any tiny home built for year-round living still falls under the UCC and needs a certificate of occupancy before use.¹⁵²⁴ Ask the township, borough or city zoning office about residential occupancy on the specific parcel.¹⁸

Pennsylvania's state-park camping rules concern campgrounds, not private land: stays are capped at 14 consecutive nights from Memorial Day to Labor Day and 21 nights the rest of the year.²⁵²⁶

Where are the best Pennsylvania counties for a bolthole?

The highest Bolthole Index scores belong to Clearfield County, Jefferson County, Venango County, Juniata County, Tioga County, Potter County, Elk County, Fulton County.²⁷ Clearfield County scores 85, Jefferson and Venango 83, Juniata and Tioga 82, Potter 81, Elk 80 and Fulton 79.²⁷ All of these counties lack countywide zoning; Clearfield and Jefferson have limited building-permit categories, while the others are listed as required.²⁷ Municipal zoning and UCC enforcement still need separate answers for the property.⁴¹⁵

The median county farmland value is $7,064 per acre; this is a farmland benchmark rather than an asking price for a buildable lot.²⁸ Lower-value counties include Cameron County, Pike County, Warren County, Potter County, Crawford County.²⁸ The median county effective property-tax rate is 1.3%, and the median county property-tax bill is $2,373 annually; these county medians do not quote the bill for a particular parcel.²⁹

Building a home in Pennsylvania: the steps, in order

1. Ask the township, borough or city where the parcel sits what its zoning allows; the state directs applicants to the Pennsylvania Municipal Statistics Contact Search to find the local contact.¹⁸³⁰
2. Get the local on-lot septic permit before building.²¹
3. If the driveway meets a state road, apply to PennDOT for a highway occupancy permit.³¹
4. Obtain the UCC building permit before starting work.³²
5. Have the code official inspect foundations; plumbing, mechanical and electrical systems; frame and masonry; and wallboard, then a final inspection.³³
6. Obtain the certificate of occupancy before anyone uses the building.²⁴

What should you check about Pennsylvania water, wells and road access?

Pennsylvania's water-rights framework is riparian reasonable use; domestic and farm groundwater use is generally unregulated outside special river-basin regimes.³⁴ The groundwater-management category includes parts of Lehigh, Berks, Chester, Bucks and Montgomery counties, so confirm whether the parcel lies inside the protected area before relying on the general rule.³⁴

Commercial water-well drillers need state licenses and permits, while homeowners or farmers drilling on their own or leased land are exempt from the licensing requirement.¹³ Pennsylvania has state construction standards for public water-supply wells but not private wells, and drillers must provide construction details to the state and owner.¹³ DCNR's Bureau of Geological Survey answers driller-licensing questions.³⁵

Building or changing a driveway on state highway land, or connecting to a PennDOT drainage facility, requires a PennDOT highway occupancy permit, usually issued within 30 days of a complete application.³¹ Fees vary by permit; ask the PennDOT district permit manager.³⁶ Driveways on township or borough roads are a local matter that we could not confirm statewide.³⁰ Municipal floodplain approval is required for development within a Special Flood Hazard Area, and DEP's Chapter 106 floodplain permits can apply to work in a floodplain.³⁷³⁸

Watch-outs

• County zoning counts do not determine township, borough or city zoning; ask the municipality about the parcel before buying.⁴
• A limited county building-permit category does not exempt covered residential construction from Pennsylvania UCC approval.⁷¹
• Local septic approval and municipal floodplain review are separate from building-code approval.²¹³⁷
• We could not confirm statewide tiny-home authorization or a uniform minimum home size; ask the municipal zoning office and building code official.¹⁸¹⁵
• Pennsylvania’s UCC triennial update took effect in 2026; confirm the applicable code with the building code official.¹⁵
• Renting a house or cabin to the same guest for fewer than 30 days is subject to the Pennsylvania hotel occupancy tax of 6 percent, and some counties add their own.³⁹

Sources

1. Pennsylvania: Part XIV, Uniform Construction Code, Chapter 403 Administration, quoted and re-checked
2. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties that do not require a residential building permit in unincorporated areas
3. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties with no county-wide zoning
4. Pennsylvania: Pennsylvania Municipalities Planning Code, quoted and re-checked
5. Pennsylvania: Act 537 Sewage Facilities, quoted and re-checked
6. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties' answers on living in an RV on your own land
7. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties that require a residential building permit only in some cases (for example floodplain or certain structures)
8. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties that require a residential building permit in unincorporated areas
9. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties with county zoning
10. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties with neither a residential building permit nor county-wide zoning
11. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Pennsylvania counties' answers on living in a tiny home on your own land
12. Pennsylvania: Contractor Licensing, quoted and re-checked
13. Pennsylvania: Apply for a Water Well Drillers License and Rig Permit, quoted and re-checked
14. Pennsylvania: Pennsylvania Construction Code Act, quoted and re-checked
15. Pennsylvania: Uniform Construction Code (UCC), quoted and re-checked
16. Pennsylvania: Pennsylvania Construction Code Act — Chapter 1, quoted and re-checked
17. Pennsylvania: Pennsylvania Uniform Construction Code, Chapter 403, quoted and re-checked
18. Pennsylvania: Local Registrations, Permits, Zoning, quoted and re-checked
19. Pennsylvania: Pennsylvania Municipalities Planning Code, quoted and re-checked
20. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Who issues septic permits across Pennsylvania's counties: a state agency, a multi-county health district, or the county
21. Pennsylvania: 25 Pa. Code § 72.22. Permit issuance, quoted and re-checked
22. Pennsylvania: 25 Pa. Code § 73.65. Recycling toilet, incinerating toilet or composting toilet, quoted and re-checked
23. Pennsylvania: Pennsylvania Sewage Facilities Act, quoted and re-checked
24. Pennsylvania: Part XIV, Uniform Construction Code, Chapter 403 Administration, quoted and re-checked
25. Pennsylvania: RV and Tent Campsites, quoted and re-checked
26. Pennsylvania: RV and Tent Campsites, quoted and re-checked
27. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: The 8 highest-scoring Pennsylvania counties on the Bolthole Index (off-grid and homestead land score out of 100), with each one's building-permit, zoning and septic answers
28. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Median farmland value per acre across Pennsylvania's counties (USDA census, the middle county's value; USD/acre), with the five least expensive counties
29. Bolthole Index county rulebook, 67 Pennsylvania counties, as of October 7, 2026: Median of Pennsylvania's county effective property tax rates and median county property tax bills
30. Pennsylvania: Local Registrations, Permits, Zoning, quoted and re-checked
31. Pennsylvania: Apply for a PennDOT Highway Occupancy Permit, quoted and re-checked
32. Pennsylvania: Apply for a Uniform Construction Code Building Permit, quoted and re-checked
33. Pennsylvania: Part XIV, Uniform Construction Code, Chapter 403 Administration, quoted and re-checked
34. Pennsylvania water rights and groundwater management: National Agricultural Law Center and Bolthole Index groundwater review
35. Pennsylvania DCNR — Bureau of Geological Survey (pa.gov)
36. Pennsylvania: Apply for a PennDOT Highway Occupancy Permit, quoted and re-checked
37. Pennsylvania: PennsylvaniA Floodplain Development Guide, quoted and re-checked
38. Pennsylvania: Permitting and Authorizations, quoted and re-checked
39. Pennsylvania: Home-sharing/Third-party Broker Rentals, quoted and re-checked

Written October 13, 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.