Bolthole Index

Allegheny County, Pennsylvania

Building permits, zoning and septic rules in Baldwin Township, Pennsylvania

Baldwin Township, Pennsylvania requires a building permit for any type of construction1, and the township has its own zoning chapter in its code of ordinances2. The township office schedules inspections at 412-341-95973. Septic permits for on-lot sewage systems in Allegheny County come from the county Health Department4.

At a glance

Building permit
Required for any type of construction, issued by Baldwin Township1
Zoning
Township zoning ordinance (Chapter 27); district rules not confirmed2
Permits you can skip
Reshingling, siding, same-size windows and doors, minor interior repairs, furnace or water heater swaps1
Septic
Allegheny County Health Department, Sewage Enforcement Officers4
Driveways
Township permit to add or resize a driveway; PennDOT permit on state highways56
Subdivision
Regulated by the township's subdivision and land development ordinance7
Owner-builder
No statewide contractor license for an owner's own primary residence8

Who to call

Building permits

Baldwin Township Building Inspections & Permits

Building, electrical, fire, grading, mechanical/plumbing, occupancy and zoning permit applications; schedules the building inspector

412-341-9597

[email protected]

10 Community Park Drive, Pittsburgh, PA 15234

Septic permits

Allegheny County Health Department, Plumbing Program

Plumbing permits and contact point for private on-lot sewage permitting

412-578-8036

2121 Noblestown Road, Suite 207, Pittsburgh, PA 15205

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Off-grid gear

Going off-grid in Baldwin Township means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Baldwin Township, PA?

Yes. Baldwin Township requires building permits for any type of construction, including new dwellings, additions, porches, decks, sheds, outbuildings, garages, pools, fences and signs19. The township's list of work that does not need a building permit covers reshingling, siding replacement, same-size window and door replacement, minor interior repairs and furnace or water heater replacement1.

Sheds and lawn buildings are listed at a maximum of 100 sq. ft.1. Electrical work requires an inspection from an independent electrical inspection agency10. Because Pennsylvania's Uniform Construction Code applies in Allegheny County, a certificate of occupancy is also required before a regulated building can be used11.

Who issues building permits in Baldwin Township, and how do you reach them?

Baldwin Township issues its own building permits; Allegheny County does not. The Allegheny County Office of Property Assessments directs applicants to file permits in the municipality where the work happens12.

Call the township office at 412-341-9597 to schedule with the building inspector, who keeps Thursday afternoon hours or meets by appointment39. The township posts application forms for building/electrical, fire, grading, mechanical/plumbing, occupancy and zoning permits3. Major plumbing requires a separate permit from the Allegheny County plumbing department1.

Does Baldwin Township have zoning?

Yes. Baldwin Township's code of ordinances includes a zoning chapter, Chapter 272. The township also posts a zoning permit application3. Allegheny County does not zone for the township: zoning in the county is set municipality by municipality13.

We could not confirm the zoning districts, minimum lot sizes, setbacks or whether RVs, tiny homes or accessory dwellings are allowed on a Baldwin Township lot. Ask the township office before you buy, and request a zoning permit review for the exact parcel. Do not assume that a use is allowed because no rule is listed here.

How do septic permits work in Baldwin Township?

Septic permits stay with Allegheny County, not the township. The Allegheny County Health Department's Sewage Enforcement Officers carry out on-lot sewage permitting under Pennsylvania's Sewage Facilities Act4. A permit is required before construction where on-lot disposal is proposed14. Call the Health Department's Plumbing Program at 412-578-803615.

We could not confirm whether a given Baldwin Township address sits on public sewer. Where a public sewer is available within the distances set by the county's Article XIV, owners may be required to connect16. Ask the township office and the Health Department which applies to your parcel.

Building a home in Baldwin Township: the steps, in order

  1. Ask the township office (412-341-9597) about zoning for your parcel and submit a zoning permit application39.
  2. Confirm sewer or on-lot septic with the Allegheny County Health Department4.
  3. Apply for the township building/electrical permit and schedule the building inspector3.
  4. If the work adds 150 square feet or more of impervious surface, prepare a stormwater management plan1.
  5. A new or resized driveway needs a township permit5; a driveway onto a state highway also needs a PennDOT permit6.
  6. Get the required inspections and the certificate of occupancy before moving in11.

What stays with Allegheny County, and what to check before you buy?

Allegheny County handles septic permits and plumbing permits417. Subdivision and land development inside Baldwin Township is regulated by the township's own subdivision ordinance7. For land outside Baldwin Township, see the Allegheny County page.

Pennsylvania has no statewide license for owners doing unpaid work on their own primary residence8. Floodplain development inside a mapped special flood hazard area needs a municipal permit before work begins18. Allegheny County's typical home value is $247,00819.

Watch-outs

  • We could not confirm Baldwin Township's zoning districts, setbacks, minimum lot sizes or rules on RVs and tiny homes; ask the township office before buying2.
  • Projects adding 150 square feet or more of impervious surface need a stormwater management plan1.
  • A driveway that changes size, or a new driveway, needs a township permit even though repaving with no change in size does not5.
  • We could not confirm township permit fees; ask the township office at 412-341-95973.

Sources

  1. Building inspections & permits - Baldwin Township (Baldwin Township), quoted and re-checked
  2. Township of Baldwin, PA code of ordinances table of contents (eCode360) (Baldwin Township), quoted and re-checked
  3. Building inspections & permits - Baldwin Township (Baldwin Township), quoted and re-checked
  4. Water Pollution Control, quoted and re-checked
  5. Building inspections & permits - Baldwin Township (Baldwin Township), quoted and re-checked
  6. Apply for a PennDOT Highway Occupancy Permit (Pennsylvania statewide rule), quoted and re-checked
  7. Chapter 22 Subdivision and Land Development, Part 1 - Township of Baldwin (Baldwin Township), quoted and re-checked
  8. Contractor Licensing (Pennsylvania statewide rule), quoted and re-checked
  9. Baldwin Township Building Inspections & Permits (baldwintownship.com)
  10. Building inspections & permits - Baldwin Township (Baldwin Township), quoted and re-checked
  11. Apply for a Uniform Construction Code Building Permit, quoted and re-checked
  12. Allegheny County - Building Permits (2026 county census)
  13. Allegheny Places - Zoning Planning Series (2026 county census)
  14. Water Pollution Control, quoted and re-checked
  15. Allegheny County Health Department, Plumbing Program (alleghenycounty.us)
  16. Article XIV Sewage Management, quoted and re-checked
  17. Project Plans and Permitting, quoted and re-checked
  18. PennsylvaniA Floodplain Development Guide (Pennsylvania statewide rule), quoted and re-checked
  19. Typical home value (Zillow): Bolthole Index county data

Written October 14, 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.

Answers from the rulebook for Baldwin Township

Baldwin Township’s own rules

  • Building permitRequired

    Construction inside Baldwin township

    • Not needed for reshingling, siding replacement, window or door replacement of same size, minor interior repairs, furnace or water heater replacement.
    • Sheds and lawn buildings listed up to 100 sq. ft.
    • Major plumbing requires a permit from the Allegheny County plumbing department.
    • Projects adding 150 sq. ft. or more of impervious surface need a stormwater management plan.
    “building permits are required for any type of construction in baldwin township.”
  • InspectionsRequired

    Electrical work inside Baldwin township

    • Building inspector hours Thursdays 1:00-4:00 pm or by appointment.
    • Only the electrical inspection requirement is explicitly stated on the page.
    “electrical work requires an inspection from an independent electrical inspection agency.”
  • Local zoningPresent

    Land inside Baldwin township

    • Chapter 27 text, districts and dimensional tables were not opened; only the table of contents listing was read.
    “chapter 26 (reserved) chapter 27 zoning (§ 27-101 – § 27-1709)”
  • Subdividing landRegulated (with conditions)

    Subdivision and land development inside Baldwin township

    • Adopted under the Pennsylvania Municipalities Planning Code.
    “this chapter shall be known and may be cited as the "township of baldwin subdivision and land development ordinance" or just the "subdivision regulations."”
  • Driveway accessRequired

    New or resized driveways inside Baldwin township

    • Repaving a driveway with no change in size does not need a permit.
    “change the size of a concrete or asphalt driveway or parking pad add a new parking pad or driveway”
  • Permit processPartial

    Permit applications inside Baldwin township

    • Contact township office at 412-341-9597 to schedule with the building inspector.
    • Application forms exist for building/electrical, fire, grading, mechanical/plumbing, occupancy and zoning permits.
    “mechanical/plumbing permit application occupancy permit application zoning permit application”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Baldwin Township or Allegheny County directly.

  • Owner-builder exemption — Owner-builder exemption inside Baldwin township
  • Building code adopted — Building code adoption inside Baldwin township
  • Certificate of occupancy — Occupancy permits inside Baldwin township
  • Zoning districts — Zoning districts inside Baldwin township
  • Minimum dwelling size — Minimum dwelling size inside Baldwin township
19 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Building in a floodplain
  • 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.

Unanswered questions are usually a sign that Baldwin Township publishes no rule on the point, not that none exists. Allegheny County’s page lists the county offices to call.

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