Gray County, Kansas publishes a building permit application and administers zoning in the county's unincorporated area through Planning & Zoning.12 The county's published Rural Residential rules also set lot, setback and height standards, so confirm the parcel's district before designing a home.345
At a glance
- Building permit
- Gray County publishes an application; ask Planning & Zoning which work requires approval1
- Zoning
- Yes, in unincorporated Gray County2
- Septic
- County environmental code applies; confirm the permit with the Health Department67
- Rural Residential lot
- Minimum 87,120 square feet per dwelling unit in the RR district3
- RV or tiny home
- Occupancy rules could not be confirmed; ask Planning & Zoning before placement1
- Owner-builder
- No exemption was confirmed; ask Planning & Zoning before doing your own work81
- Private well
- County permit status is unconfirmed; Kansas requires well logs statewide9
Who to call
Planning & zoning
County zoning regulations and the building permit application
300 S. Main Street | Cimarron, KS 67835
Health department
First county contact for environmental-code and onsite-wastewater questions
300 S. Main Street | Cimarron, KS 67835
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Gray County, Kansas?
Gray County's Planning & Zoning page provides a Building Permit Application, so contact that office before beginning a new building, addition, reconstruction or relocation in unincorporated Gray County.1 We could not confirm from the available county rule set which repairs or minor projects are exempt, what inspections follow, or whether a certificate of occupancy is required. Kansas gives counties authority to adopt and enforce building codes in unincorporated territory, but that authority alone does not identify the code currently adopted in Gray County.10
Do not use the Kansas state-property permit rule as the answer for an ordinary private parcel: that process applies to construction and covered alterations on property owned by the State of Kansas.11 For a private rural project, give Gray County Planning & Zoning the parcel description and proposed use, then ask which applications and approvals apply before site work begins.1
Who handles Gray County building permits and zoning?
Start with Gray County Planning & Zoning, which publishes the county zoning articles, subdivision regulations, conditional-use application and building permit application.1 The office can be reached through the county at the listed Cimarron address; the published zoning page lists the county's main telephone number.1
Ask the office to identify the parcel's zoning district, whether the proposal is a permitted or conditional use, and which site-plan materials are required. Gray County's available zoning material confirms an RR Rural Residential district, but that article alone does not establish the rules for every district.12 Permit fees, building inspections, certificate-of-occupancy requirements and an owner-builder exemption could not be confirmed.8 Get those answers from Planning & Zoning before ordering plans or scheduling a contractor.1
Does Gray County, Kansas have zoning?
Yes. Gray County has adopted zoning for its unincorporated area.2 The published RR Rural Residential rules require at least 87,120 square feet, or two acres, per dwelling unit where that district applies.3 In the same district, the minimum front and rear yards are 50 feet and each side yard is at least 30 feet.4 Nonagricultural buildings in the RR district may not exceed 35 feet or two-and-one-half stories.5
Those figures are district-specific, not universal parcel rules.12 Kansas zoning law allows local classifications to set lot area, setbacks, height and lot coverage.13 Agricultural-use exemptions can apply under Kansas law while land and buildings remain used for agriculture, but dwellings and garages are not treated as agricultural buildings for the cited county-zoning rule, road setbacks may still apply, and floodplain controls remain applicable.14
How do septic permits work in Gray County?
Gray County has an environmental code and county authority over onsite wastewater, but the specific local permit and inspection procedure could not be confirmed.6 Begin with the Gray County Health Department and ask for the current environmental code, application, fee, site-evaluation requirements and inspection sequence.7 Kansas local governments may approve plans, issue construction or operating permits and impose requirements beyond state minimums.15
A private onsite system may proceed only where public sewer is unavailable and applicable local requirements are met.16 Household wastewater must go to an approved septic tank and soil-absorption field, wastewater pond, approved alternative system or permitted treatment plant; seepage pits, cesspools, dry wells and surface discharge are not allowed.17 Only 19.6% of county soils are rated without severe limits for a conventional septic drain field, so make the site evaluation an early contingency rather than assuming a standard field will work.18
Can you live in an RV or tiny home in Gray County?
We could not confirm a Gray County rule allowing long-term RV living, temporary camping or tiny-home occupancy on a private parcel. Ask Gray County Planning & Zoning about the specific parcel, proposed duration, utility connections and zoning district before placing or occupying either type of unit.1 A small structure is not automatically exempt from the county's land-use process merely because it is called a tiny home. Gray County publishes a building permit application and administers zoning in the unincorporated area.12
Manufactured homes have a clearer statewide baseline: Kansas jurisdictions may regulate them through zoning, but may not exclude manufactured homes from the entire zoning jurisdiction or exclude a residential-design manufactured home from a single-family district solely because it is manufactured.19 That statewide protection does not answer whether a particular unit, foundation, wastewater plan or parcel layout satisfies Gray County's district rules.19
Building a home in Gray County: what should you do first?
- Ask Gray County Planning & Zoning to confirm the parcel's district and whether the home is permitted or needs a conditional approval.21
- Submit the county's building permit application and obtain the office's current checklist, fee and approval sequence before construction.1
- Have the Gray County Health Department confirm the environmental-code process for septic, including any site evaluation, design review and inspections.67
- If a private well is planned, ask whether Gray County requires a well permit and which other authorization applies; Kansas requires well logs for construction, reconstruction and plugging.9
- If access connects to the state highway system, obtain the required state driveway permit before work in the right-of-way.20
- Before closing, verify flood status, legal access, easements, water supply and the final site plan with the offices that will approve the project.
What should you check before buying land in Gray County?
Start with the zoning map and written district rules, because Gray County's RR standards can control lot size, yards and building height.345 Then make septic feasibility a purchase contingency: only 19.6% of county soils are rated without severe limits for a conventional drain field.18 Ask the Health Department what testing and alternative designs it accepts under the county environmental code.67
Water planning deserves equal attention because Gray County averages 20.9 inches of precipitation annually and severe drought has occurred in 36.8% of years in the underlying climate record.2122 Confirm the legal water source and any well authorization rather than assuming a well is permit-free.9 The county's effective property-tax rate is about 1.4%, with a median annual bill of $2,461, useful for budgeting but not a substitute for a parcel-specific tax estimate.2324
Watch-outs
- The RR Rural Residential standards are district-specific; confirm the zoning map before applying the two-acre lot rule or the published setbacks to a parcel.1234
- Gray County's building-inspection, occupancy-certificate and owner-builder rules could not be confirmed; ask Planning & Zoning before work begins.18
- A driveway connecting to the Kansas state highway system requires a state permit before work occurs in the highway right-of-way.20
Sources
- Gray County Planning & Zoning (grayco.org)
- Gray County KS - Zoning Regulations (2026 county census)
- Article 3 — Rural Residential District Regulations, quoted and re-checked
- Article 3 — Rural Residential District Regulations, quoted and re-checked
- Article 3 — Rural Residential District Regulations, quoted and re-checked
- KDHE - County Environmental/Sanitary Codes (2026 county census)
- Gray County Health Department (grayco.org)
- (2026 county census)
- Water Well County Permits (Kansas statewide rule), quoted and re-checked
- K.S.A. 12-3303 — County adoption by reference of codes (Kansas statewide rule), quoted and re-checked
- Building Design and Construction Manual, Part A, Chapter 5 – Code and Occupancy Requirements (Kansas statewide rule), quoted and re-checked
- Article 3 — Rural Residential District Regulations, quoted and re-checked
- 2026 Kansas Statutes, 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
- MF2214 Minimum Standards for Design and Construction of Onsite Wastewater Systems (Kansas statewide rule), quoted and re-checked
- MF2214 Minimum Standards for Design and Construction of Onsite Wastewater Systems (Kansas statewide rule), quoted and re-checked
- MF2214 Minimum Standards for Design and Construction of Onsite Wastewater Systems (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
- K.S.A. 75-1218 — Exemption from construction codes; zoning (Kansas statewide rule), quoted and re-checked
- Kansas Administrative Regulations, Volume 3 (Kansas statewide rule), quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 28, 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.