Unincorporated Uinta County, Wyoming requires a Land Use Certificate for new construction or alteration of a structure, rather than simply calling the approval a building permit1. County zoning applies in unincorporated areas, and Uinta County also permits and inspects small wastewater systems23. The county materials do not confirm a general building code, structural inspection, or certificate-of-occupancy requirement, so ask Planning & Zoning about those items for your project4.
At a glance
- Building permit
- Land Use Certificate required for new construction or alteration1
- Zoning
- Yes in unincorporated Uinta County; municipal rules may differ25
- Septic permit
- County permit and inspection required before backfill67
- RV living
- Long-term RV occupancy was not confirmed; ask Planning & Zoning8
- Tiny homes
- No specific tiny-home rule confirmed; dwelling standards still matter9
- Minimum dwelling size
- 650 sq ft, plus 90 sq ft for each bedroom beyond one9
- Private well
- State permit required before drilling10
- County-road access
- $25 access permit for a new entrance onto county right-of-way1112
Who to call
Building permits
Uinta County Planning & Zoning / GIS
Land Use Certificates, address assignment, and zoning administration in unincorporated Uinta County
225 9th Street, Evanston, WY 82930-3415
Septic permits
Uinta County Planning & Zoning (Wastewater / Septic System)
Small wastewater system permits and inspections in Uinta County
225 9th Street, Evanston, WY 82930-3415
Roads & driveways
Uinta County Planning & Zoning (Access Permits)
Access permits for new entrances onto a county right-of-way or county road
225 9th Street, Evanston, WY 82930-3415
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 Uinta County, Wyoming?
Unincorporated Uinta County requires a Land Use Certificate for new construction or alteration of a structure1. The county charges $50 when a dwelling needs an address assignment and $25 for a barn or shop without an address1. Agricultural uses such as grazing and crop production can avoid a Use Certificate, but an agricultural structure larger than 2,500 square feet requires one13. The county materials establish land-use approval, not a general building-code permit, structural inspection program, or certificate of occupancy, so ask Planning & Zoning what construction reviews apply to the specific project4. Wyoming counties can enforce building standards only after receiving delegated authority under state law, but that law alone does not show that Uinta County has done so14.
Who handles Uinta County building permits, and how do you reach them?
Uinta County Planning & Zoning / GIS handles the Land Use Certificate process at 225 9th Street, Evanston, WY 82930-3415, and the office phone is 307-783-031815. Applications for new construction or structural alterations use county forms and may be approved by the Planning Department15. The same department handles address assignment and zoning questions15. For a new entrance onto a county road or county right-of-way, submit an Access Permit to Planning & Zoning16. A county access permit costs $25; agricultural or residential access is limited to 24 feet wide, while commercial, industrial, or subdivision-road access is limited to 40 feet at the Road and Bridge Foreman's discretion1112.
Does Uinta County have zoning?
Uinta County's Land Use Resolution applies to private land in the unincorporated county and to public land there when it is legally subject to the resolution2. Incorporated municipalities may administer different rules, so a parcel inside a city or town needs a municipal check rather than an assumption that county zoning controls5. Residential dwellings governed by the county standards must provide at least 650 square feet of gross floor area, plus 90 square feet for each bedroom beyond one9. Private on-lot water and sewage require one net acre per dwelling unit; a lot with either community water or community sewage requires one-half net acre per dwelling unit17. Lots smaller than one-half acre must have both community water and community sewage, and detached single-family lots using community systems generally need at least 7,500 square feet unless cluster-development rules apply1718.
How do septic permits work in Uinta County?
Uinta County Planning & Zoning administers permits and inspections for small wastewater systems in the county3. Construction, installation, or modification cannot begin without a county permit, and the small wastewater application fee is $150612. The sequence is to obtain the application, conduct groundwater observation and percolation tests, submit the design layout, receive the permit, and install to the approved design19. Planning & Zoning must inspect the system before it is backfilled, and permission to backfill follows inspection7. Uinta County generally requires a licensed installer, although a property owner may install a system under the county resolution and wastewater engineer's guidance20. Only about 25% of county soils avoid a severe conventional-drain-field limitation, so a parcel-specific evaluation matters21.
Can you live in an RV or tiny home on land in Uinta County?
We could not confirm a general Uinta County rule allowing long-term RV occupancy or temporary camping on private land, so ask Planning & Zoning before using an RV as housing8. The county does expressly regulate a mobile home used as temporary housing while a conventional dwelling is being built: the dwelling must have a Use Certificate, functioning water and sewage must be available, and temporary housing is limited to one year unless extended22. A mobile home placed on an individual lot must meet the requirements for a single-family dwelling22. We also could not confirm a rule written specifically for tiny homes, but a tiny home treated as a residential dwelling would face the county's 650-square-foot minimum plus 90 square feet for every bedroom beyond one9. Planning & Zoning should classify the proposed unit before purchase or placement15.
Building a home in Uinta County: the steps in order
- Ask Uinta County Planning & Zoning to confirm the parcel's zoning, required setbacks, Land Use Certificate, and whether any building-code review or inspection applies24.
- Confirm the water plan; a Wyoming groundwater permit must be approved before drilling a well10.
- Complete groundwater observation and percolation testing, submit the septic design, and obtain the county small wastewater permit before installation19.
- Apply for the Land Use Certificate on county forms; a dwelling with address assignment carries a $50 county fee1.
- Obtain the $25 county access permit before constructing a new entrance onto a county road or right-of-way1112.
- Install septic to the approved design and arrange the county inspection before backfilling7.
- If the parcel is in a participating floodplain jurisdiction, obtain the locally required floodplain permit before building23.
What should you check before buying land in Uinta County?
Check the parcel's jurisdiction first because county rules govern unincorporated Uinta County while incorporated municipalities may apply their own zoning5. Verify legal access and driveway approval; a new entrance onto a county right-of-way requires a county access permit11. If land is being divided, Uinta County's subdivision regulations generally do not apply to parcels of 35 acres or more, while smaller divisions may require county review24. Large parcels subject to Wyoming's exemption still generally need a binding, recordable access and utility easement at least 40 feet wide to a public road unless properly waived25. Only about 25% of county soils avoid severe conventional-septic limitations, and about 75.4% of the land has a slope of 15% or less2126. Federal ownership covers about 38.9% of the county, so confirm boundaries and access rather than assuming adjacent open land is usable27. The effective property-tax rate is about 0.5%, with a median annual bill near $1,3892829.
Watch-outs
- Uinta County's published materials do not confirm a general building code, structural inspection, or certificate-of-occupancy requirement; ask Planning & Zoning what applies to the project4.
- Long-term RV occupancy and temporary camping were not confirmed; ask Planning & Zoning before relying on an RV for housing8.
- A septic system must be inspected before backfill, and a noncompliant installation may have to be uncovered, removed, and rebuilt7.
- Agricultural use is not a blanket building exemption because an agricultural structure larger than 2,500 square feet requires a Use Certificate13.
Sources
- Land Use / Building Permits, quoted and re-checked
- Land Use / Building Permits, quoted and re-checked
- Wastewater / Septic System, quoted and re-checked
- Land Use / Building Permits (2026 county census)
- Land Use / Building Permits, quoted and re-checked
- Wastewater / Septic System, quoted and re-checked
- Wastewater / Septic System, quoted and re-checked
- Land Use / Building Permits (2026 county census)
- Uinta County Land Use Resolution 2023, quoted and re-checked
- General Processes (Wyoming statewide rule), quoted and re-checked
- Uinta County Road Access Permit Application, quoted and re-checked
- Uinta County Land Use Resolution 2023, quoted and re-checked
- Uinta County Land Use Resolution 2023, quoted and re-checked
- Wyoming Statutes, Title 35, W.S. 35-9-121 (Wyoming statewide rule), quoted and re-checked
- Uinta County Planning & Zoning / GIS (uintacountywy.gov)
- Uinta County Planning & Zoning (Access Permits) (uintacountywy.gov)
- Uinta County Land Use Resolution 2023, quoted and re-checked
- Uinta County Land Use Resolution 2023, quoted and re-checked
- Land Use / Building Permits, quoted and re-checked
- Uinta County Planning & Zoning (Wastewater / Septic System) (uintacountywy.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Uinta County Land Use Resolution 2023, quoted and re-checked
- 2027-2028 Biennium Unit Narrative, Wyoming Office of Homeland Security (Wyoming statewide rule), quoted and re-checked
- Subdivisions, quoted and re-checked
- Wyoming Statutes, Title 18 (Wyoming statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Federal land share: 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.