Kansas Building Permits, Zoning & Septic by County

Kansas has no statewide residential building permit: 33 counties require none on unincorporated land, 23 require one only in some cases, and 49 require one, while cities set their own rules.¹²³ Another 36 counties have no countywide zoning.⁴ Septic permits come from county sanitary codes, with state minimum standards where no code exists.⁵

At a glance

Residential building permits: 33 counties require none; 23 require one in some cases; 49 require one on unincorporated land¹²³
Countywide zoning: 36 counties have none; 61 have county zoning⁴⁶
No building permit and no zoning: 29 counties meet both descriptions⁷
Septic permits: County office in 100 counties, multi-county health district in 4, state agency in 1; county sanitary code sets the rules⁸⁹
RV living: 15 counties have a reviewed answer (2 temporary-only, 13 limited); 90 have none yet¹⁰
Tiny homes: 5 counties have a reviewed answer (2 allowed, 3 limited); 100 have none yet¹¹
Owner-builder: State exemption covers roofing registration only, not building permits or inspections¹²
Water wells: Local well permits may apply; domestic use is exempt from a state water right¹³¹⁴

Who to call

Septic permits

Kansas Department of Health and Environment — Local Environmental Protection Program

State technical assistance to counties and review of county sanitary-code updates; the county sanitary code determines septic permits.

(785) 296-5558

Well permits

Kansas Department of Health and Environment — Geology and Well Technology Unit

Technical assistance regarding well construction, maintenance and protection.

785-296-5560

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

Which Kansas counties don't require a building permit?

Kansas has 33 counties with no residential building-permit requirement, 23 that require one only in some cases and 49 that require one; the counts describe unincorporated land, and cities set their own rules.¹²³ Bourbon County, Chautauqua County, Marshall County and Elk County score highest among the counties with none.¹ See the Kansas no-building-codes list. Kansas counties may adopt building codes for unincorporated areas by resolution, so ask the county clerk which resolution covers the parcel.¹⁵ A county with subdivision regulations can also refuse a building or zoning permit on a lot split after those regulations took effect unless the plat was approved.¹⁶ The state sets no residential building code: its energy standard covers new commercial and industrial buildings, and counties and cities may adopt their own.¹⁷ The owner-builder roofing exemption concerns contractor registration, not building permits.¹²

Which Kansas counties have no zoning?

Kansas has 36 counties with no countywide zoning and 61 with county zoning.⁴⁶ Bourbon County, Neosho County, Atchison County and Chautauqua County score highest among those with none.⁴ Kansas has 29 counties with neither a residential building permit nor countywide zoning; compare the no-zoning list and combined list.⁷ Where zoning exists, the county or city sets lot size, setbacks, lot coverage and building height by zoning district; the state sets no numeric figure for any of them.¹⁸¹⁹²⁰²¹ Zoning cannot exclude manufactured homes from a whole jurisdiction, though aesthetic standards and valid covenants can still apply.²² Agricultural-use exemptions do not lift floodplain rules, and a dwelling or garage is not an agricultural building.²³

Who issues septic permits in Kansas?

Kansas septic authority is primarily local: a county office serves 100 counties, multi-county health districts serve 4, and a state agency serves 1.⁸ Local health departments administer the county sanitary code unless the commissioners designate another county agency.²⁴ County codes set design and permit requirements; where a county has no code, the landowner must follow KDHE's statewide minimum standards.⁹ Fees vary by county rather than following one statewide fee.²⁵ A private septic system is allowed only where public sewers are not available and local requirements are met.²⁶ KDHE's Local Environmental Protection Program supports counties but does not issue the permit; call the county sanitary-code administrator before buying.²⁷

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

Kansas has reviewed RV answers for 15 counties: 2 allow temporary occupancy only and 13 set limits; the other 90 have none yet.¹⁰ Miami County and Franklin County are the two with temporary-only answers.¹⁰ Tiny-home answers cover 5 counties: 2 allowed and 3 limited, leaving 100 with none yet.¹¹ Pottawatomie County and Franklin County are the two that allow tiny homes.¹¹ See the tiny-home list. Kansas requires approved domestic wastewater disposal even for an off-grid home, whatever the county decides about the dwelling itself.²⁸

Where are the best Kansas counties for a bolthole?

Bourbon County and Linn County lead the Kansas Bolthole Index at 68, but their rules differ: Bourbon requires no residential building permit and has no countywide zoning, while Linn requires building permits and has zoning; both use county septic authorities.²⁹ Neosho County scores 67 with limited building-permit requirements, no countywide zoning and county septic authority.²⁹ The median county farmland value is $2,281 per acre; Morton County has the lowest at $1,234 per acre.³⁰ The median county effective property-tax rate is 1.5%, and the median county property-tax bill is $1,863 a year.³¹

What should Kansas land buyers know about water wells and access?

Kansas has 43 counties inside a groundwater management regime, but domestic use is statutorily exempt from appropriation, so a house well needs no water right even in a closed district.¹⁴ Construction, reconstruction and plugging of a well still need a statewide well log, and many counties and some cities require a local well permit.¹³ KDHE's Geology and Well Technology Unit answers questions on well construction, maintenance and protection.³² A driveway onto a state highway needs an approved highway permit agreement before any work in the right-of-way.³³ In a mapped flood zone, local floodplain rules require a separate floodplain-development permit for each structure, even where no building permit is required.³⁴

Watch-outs

Kansas county counts describe unincorporated land; cities zone and permit separately.³⁵
Counties can adopt building codes for unincorporated areas, so confirm the current resolution with the county clerk before relying on a no-building-permit answer.¹⁵
Agricultural zoning exemptions do not remove floodplain restrictions or possible public-road setbacks.²³
Off-grid wastewater cannot discharge to the surface; cesspools, seepage pits and dry wells are prohibited.²⁸
Buildings on State of Kansas-owned property go through the Department of Administration's permit and inspection process, not a county office.³⁶

Sources

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.

Building permits, zoning and septic rules across Kansas counties