Yes, unincorporated Butler County, Kansas requires a building permit for new construction, and the county has adopted codes for structures being constructed or remodeled12. The county also has zoning, while Environmental Health issues permits for onsite wastewater systems34. Before cutting a driveway into a county road or right-of-way, contact Public Works for the required permit or permission5.
At a glance
- Building permit
- Required countywide; issued by Community Development's Building Safety & Construction Enforcement Division1
- Zoning
- Countywide, with dedicated Agricultural (AG-40, AG-80), Rural Residential and Manufactured Housing districts36
- Septic permits
- Required for onsite wastewater systems; issued by Community Development's Environmental Health Division47
- Owner-builder exemption
- Not confirmed on an official county source; ask Building Safety directly8
- Manufactured home
- Has its own dedicated zoning district under the county's zoning regulations6
- Well permit
- Many Kansas counties require one; confirm directly with Butler County rather than assume9
- Nearest city of 100,000+
- About 28 miles away10
Who to call
Building permits
Butler County Building Safety & Construction Enforcement Division
Building permits, plan review and inspections for construction, demolition and remodeling in unincorporated Butler County
Suite 202, 121 S. Gordy, El Dorado, KS 67042
Planning & zoning
Butler County Planning and Zoning Division
Zoning and subdivision regulation review, comprehensive plan maintenance, and zoning map updates for unincorporated Butler County
Suite 202, 121 S. Gordy, El Dorado, KS 67042
Septic permits
Butler County Environmental Health Division
Septic (onsite wastewater treatment) permits, sewage contractor licensing, and inspections under the county's sanitary code
Suite 202, 121 S. Gordy, El Dorado, KS 67042
Zoning
Butler County Zoning Regulations (Community Development)
Full text of Butler County's zoning ordinance, including its zoning districts
205 W Central Avenue, El Dorado, KS 67042
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Butler County, Kansas?
Yes. Unincorporated Butler County requires a building permit for new construction, and the county has adopted codes that apply to structures being constructed or remodeled12. The Building Safety & Construction Enforcement Division reviews plans, handles construction permitting and inspects work11. The available county material does not give a complete list of which construction types or exceptions require a permit, so confirm the scope of your project with Building Safety before ordering materials211. We could not confirm an owner-builder exemption, so do not assume you can pull the permit yourself8.
Who is the Butler County building department, and how do you reach them?
Building, zoning and septic all sit inside one Community Development department at 121 S. Gordy, Suite 202, El Dorado, KS 67042, phone 316-322-4325111213. The Building Safety & Construction Enforcement Division handles permits and inspections for construction, demolition and remodeling11. The Planning and Zoning Division reviews development proposals and enforces the county's zoning and subdivision regulations12. The Environmental Health Division is a separate division of the same department and licenses sewage contractors and issues septic permits13.
Does Butler County have zoning?
Yes, countywide. Butler County's zoning regulations set out named districts, including two agricultural districts called AG-40 and AG-80, a Rural Residential District, a Residential Estate District, a Residential District, and a dedicated Manufactured Housing District, alongside floodplain and airport-overlay districts36. Kansas law leaves the actual minimum lot width, depth and area, setbacks, lot coverage and building height to whatever the applicable district specifies, so those numbers come from Butler County's own ordinance, not a statewide rule14151617. Land used for agricultural purposes is exempt from zoning regulations under Kansas law, though it can still be regulated for setbacks from public roads, and the exemption ends if the use changes18. The Planning and Zoning Division can tell you which district covers your parcel and what it allows12.
How do septic permits work in Butler County?
Butler County Environmental Health requires and issues permits for onsite wastewater systems, licenses sewage-system contractors, and inspects systems under the county sanitary code4713. Septic tanks must be pre-approved by the Kansas Department of Health and Environment's Division of Water Quality, while the available county material does not provide a complete list of permit exemptions4. Soil is a major constraint: only about 1.5% of Butler County's soils are rated free of severe limitations for a conventional septic drain field, so arrange a site evaluation before assuming a standard field will work19. Statewide, seepage pits, cesspools and dry wells are prohibited, and a private onsite system may not discharge to the surface20.
Can you live in an RV or tiny home on your land in Butler County?
Butler County's zoning regulations include a dedicated Manufactured Housing District, so a manufactured home has a clear, named place in the county's zoning scheme, though whether your specific parcel is zoned for it still depends on its district63. For anything outside that district, or for an RV or tiny home, Kansas leaves those calls to the applicable local zoning classification, and we found no statewide rule settling it either way314. Ask the Planning and Zoning Division which district your parcel sits in before you buy with an RV, tiny home or manufactured home in mind12.
Building a home in Butler County: the steps, in order
- Confirm your parcel's zoning district with the Planning and Zoning Division before you buy, since it sets lot size, setbacks and what's allowed123.
- If the parcel isn't on public sewer, apply for the required onsite wastewater permit with the Environmental Health Division; expect a site evaluation given the county's soils41319.
- If you need a well, check with Butler County directly on whether a local well permit applies, since many Kansas counties require one and rules vary by county9.
- Apply for your building permit through the Building Safety & Construction Enforcement Division, which reviews the plan, site plan and land use before construction11.
- Schedule the on-site project inspection required as part of the county's construction-permitting process11.
- For an entrance or driveway affecting a Butler County road or right-of-way, get the required permit or permission from the Public Works Office before construction5. A driveway onto a state highway instead needs a Kansas Department of Transportation permit before work in the state right-of-way21.
- If you're subdividing rather than buying an existing lot, submit your plat to the planning commission; it's deemed approved if not acted on within 60 days of the first meeting after submission22.
What to check before you buy land in Butler County
Start with septic: only about 1.5% of Butler County's soils are rated free of severe limitations for a conventional drain field, and Butler County requires a permit for an onsite wastewater system194. Confirm the parcel's zoning district with the Planning and Zoning Division, since lot size, setbacks and allowed uses depend on that district312. Ask Public Works before planning an entrance or driveway that affects a county road or right-of-way because a permit or permission is required5. If you need a well, ask the county whether a local permit applies; Kansas well-permit rules vary by county9. Butler County has about 48 people per square mile, and the nearest city of 100,000 or more is about 28 miles away2310.
Watch-outs
- We could not confirm an owner-builder permit exemption for Butler County on an official county source; don't assume you can pull your own permit without checking with Building Safety & Construction Enforcement first811.
- Kansas well-permit requirements vary by county and even by city; a rule you read about a neighboring county may not apply in Butler County, so confirm directly rather than assume9.
- A new entrance or driveway affecting a Butler County road or right-of-way needs a permit or permission from Public Works; the county source does not establish a rule for driveway work wholly outside that right-of-way5.
Sources
- Butler County KS Community Development (2026 county census)
- Community Development, quoted and re-checked
- Butler County KS Zoning Regulations (2026 county census)
- Community Development, quoted and re-checked
- Public Works, quoted and re-checked
- Butler County Zoning Regulations (Community Development) (bucoks.gov)
- KDHE County Environmental/Sanitary Codes (2026 county census)
- (2026 county census)
- Water Well County Permits (Kansas statewide rule), quoted and re-checked
- Distance to the nearest metro area: Bolthole Index county data
- Butler County Building Safety & Construction Enforcement Division (bucoks.gov)
- Butler County Planning and Zoning Division (bucoks.gov)
- Butler County Environmental Health Division (bucoks.gov)
- 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
- 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
- K.S.A. 12-758 — Agricultural land exempted from zoning regulations (Kansas statewide rule), 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
- K.S.A. 12-752 — Plats; approval; permits; filing (Kansas statewide rule), quoted and re-checked
- Population density: Bolthole Index county data
Written September 29, 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.