Unincorporated Pottawatomie County, Kansas requires building permits for site-built homes, accessory structures, manufactured and moved-in homes, and additions1. County zoning also applies, except in designated extraterritorial areas of Wamego and St. Marys, while incorporated cities may administer their own rules2. Planning & Zoning handles building permits and floodplain management, while Environmental Health handles private wastewater and water systems34.
At a glance
- Building permit
- Required for homes, accessory structures, manufactured or moved-in homes, and additions1
- Zoning
- County zoning applies to unincorporated land, with stated extraterritorial-jurisdiction exceptions2
- Septic permit
- Required before new installation or reconstruction; county Environmental Health administers it56
- Tiny home
- Allowed as an accessory dwelling unit if permanently founded and all district conditions are met7
- RV living
- Private-land occupancy outside an RV park is not confirmed; ask Planning & Zoning3
- Owner-builder
- No general exemption is published; confirm permit requirements with Planning & Zoning83
- Private well
- A county permit applies to non-public water supplies, subject to the stated scope9
- Rural lot with well
- County regulations specify a 5-acre minimum, subject to district and plat requirements10
Who to call
Building permits
Pottawatomie County Planning & Zoning Office
Building and sign permits, zoning, subdivision plat review, addressing, land-use planning, and floodplain management
207 N. 1st, Westmoreland, KS 66549
Septic permits
Pottawatomie County Environmental Health
Private wastewater and water-disposal systems and private water-supply systems
612 E. Campbell St., Westmoreland, KS 66549
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Pottawatomie County, Kansas?
Yes, in the county permit jurisdiction. Pottawatomie County requires a building permit for site-built dwellings and accessory structures, manufactured homes, moved-in homes, and additions1. Small storage sheds of 120 square feet or less, fences, play houses, and play equipment are listed exemptions1. Agricultural structures still need a permit so the county can check floodplain placement and setbacks, although an agricultural structure on 40 acres or more has no permit fee11. A permit does not necessarily mean full county building-code review: outside the Blue Township Sewer District, the county has adopted only the stated ADA requirements for commercial buildings, and the county assigns code-quality checking to the buyer12.
Who issues building permits in Pottawatomie County, and how do you reach them?
The Pottawatomie County Planning & Zoning Office issues building and sign permits and administers zoning, subdivision review, addressing, and floodplain management3. The office is at 207 N. 1st, Westmoreland, KS 66549, and its phone number is 785-457-35513. Most new accessory buildings or additions have a $50 fee, while a new dwelling outside a sewer district has a $200 fee13. Ask the office to identify the parcel's zoning district, whether it falls within a city or an extraterritorial jurisdiction, and which application matches the work before preparing plans32. General construction inspections and a certificate-of-occupancy requirement for ordinary county-regulated projects could not be confirmed; ask Planning & Zoning what inspections and closeout documents apply to the specific permit3.
Does Pottawatomie County have zoning?
Yes. The county Unified Development Regulations apply to unincorporated Pottawatomie County, except designated extraterritorial-jurisdiction areas for Wamego and St. Marys, and incorporated municipalities may administer their own rules2. Rural residential lots using a well have a 5-acre minimum, while the County Sanitarian determines the rural-lot requirement where central water is available; district and plat requirements can differ10. Setbacks and lot limits therefore depend on the parcel's applicable zoning classification1415. The county did not publish a general minimum dwelling size in the reviewed material, and private restrictive covenants may add separate limits; ask Planning & Zoning to check the zoning map, plat, and any recorded covenants before relying on a seller's description3.
How do septic permits work in Pottawatomie County?
Pottawatomie County Environmental Health administers private wastewater and water-disposal systems from 612 E. Campbell St., Westmoreland, KS 66549, at 785-457-33974. A signed application and site plan are required for a new or reconstructed private sewerage system, and the County Sanitarian must review the site plan before issuance5. The health-permit fee is $150 for new construction and $25 for reconstruction; starting first can add a $100 late inspection fee5. Environmental Health must inspect a septic system before it is covered or a lagoon before operation16. Only about 1.2% of county soils are rated without severe limits for a conventional drain field, so make the site evaluation an early contingency rather than assuming a standard layout will work17. Kansas also requires home wastewater to use an approved septic field, lagoon, alternative system, or permitted treatment plant, with no surface discharge18.
Can you live in an RV or tiny home on your land in Pottawatomie County?
Pottawatomie County allows a tiny home as an accessory dwelling unit when it is affixed to a permanent foundation and located in a zoning district where single-family housing is allowed by right7. The accessory dwelling unit must also satisfy the county's ownership, size, setback, sewer or Sanitarian approval, parking, and building-plan conditions7. That rule does not establish that every tiny home is allowed on every parcel7. Long-term RV occupancy or temporary camping on private land outside a regulated campground or RV park could not be confirmed; ask Planning & Zoning before buying or placing an RV3. A wastewater plan remains necessary for residential use because Kansas requires domestic wastewater to reach an approved system and Pottawatomie County administers private disposal systems186.
Building a home in Pottawatomie County: the steps, in order
- Ask Planning & Zoning to confirm whether the parcel is under county, municipal, or extraterritorial jurisdiction and identify its zoning district23.
- Confirm lot size, setbacks, floodplain status, subdivision or plat conditions, and whether a variance or other land-use approval is needed103.
- Arrange water and wastewater early; Environmental Health administers private systems, and a non-public water-supply permit is listed at $75 annually69.
- Submit the building-permit application to Planning & Zoning and the signed septic application and site plan to Environmental Health15.
- Do not begin septic work before permit issuance, and arrange inspection before covering a septic system or operating a lagoon516.
- If the driveway connects to a Kansas state highway, obtain the separate state highway permit before working in the right-of-way19.
- Ask Planning & Zoning which construction inspections and occupancy closeout apply because a general county rule could not be confirmed3.
What should you check before buying land in Pottawatomie County?
Start with jurisdiction: county zoning excludes designated extraterritorial areas for Wamego and St. Marys, while incorporated municipalities may apply their own rules2. Verify the recorded zoning, plat, setbacks, access, floodplain status, and whether a proposed split will require subdivision review320. Test wastewater feasibility before closing because only about 1.2% of county soils are rated without severe limits for a conventional drain field17. For a private well, confirm the county permit category with Environmental Health because the published $75 annual permit is for a non-public water supply and does not define every private-well category9. A driveway onto the state highway system needs a separate state permit19. Pottawatomie County's effective property-tax rate is about 1.1%, with a median annual bill of about $2,4752122.
Watch-outs
- A county building permit does not mean the same code review everywhere: county building codes are adopted within the Blue Township Sewer District, while the county's stated code coverage is narrower outside it12.
- Agricultural structures still need a county permit for floodplain and setback review, even where the permit fee is waived on qualifying acreage11.
- RV living, temporary camping, a general owner-builder exemption, ordinary building inspections, certificates of occupancy, and a county minimum dwelling size remain unconfirmed; ask Planning & Zoning about the exact parcel and project83.
Sources
- Pottawatomie County Planning and Zoning FAQs, quoted and re-checked
- Pottawatomie County Unified Development Regulations, Article 1, quoted and re-checked
- Pottawatomie County Planning & Zoning Office (pottcounty.org)
- Pottawatomie County Environmental Health (pottcounty.org)
- Environmental Health Permit Application, quoted and re-checked
- Environmental Health, quoted and re-checked
- Updated Complete Unified Development Regulations 2023, quoted and re-checked
- Pottawatomie County - When is a building permit needed? (FAQ) (2026 county census)
- Environmental Health, quoted and re-checked
- Updated Complete Unified Development Regulations 2023, quoted and re-checked
- Pottawatomie County Planning and Zoning FAQs, quoted and re-checked
- Pottawatomie County Planning and Zoning FAQs, quoted and re-checked
- Pottawatomie County Planning and Zoning FAQs, quoted and re-checked
- K.S.A. 12-753 — Zoning regulations; districts; restrictions (Kansas statewide rule), quoted and re-checked
- K.S.A. 12-753 — Zoning regulations; districts; restrictions (Kansas statewide rule), quoted and re-checked
- Environmental Health, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- MF2214 Minimum Standards for Design and Construction of Onsite Wastewater Systems (Kansas statewide rule), quoted and re-checked
- Kansas Administrative Regulations, Volume 3 (Kansas statewide rule), quoted and re-checked
- Planning & Zoning Office, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 27, 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.