Unincorporated Utah County, Utah requires a building permit before construction, a change of use, or regulated electrical, gas, mechanical, or plumbing work begins1. Utah County Community Development also administers zoning outside city limits2. Septic approval comes from the Utah County Health Department, while floodplain and county-road access permits come from Public Works345.
At a glance
- Building permit
- Required before construction, a change of use, or regulated system work in unincorporated Utah County1
- Zoning
- Yes; Utah County Community Development administers zoning only in unincorporated areas2
- Septic permit
- Required through Utah County Health Department Environmental Health; system permit and plan review is $1,8006
- RV living
- County-defined camping is temporary and lasts less than 45 days per calendar year; do not assume year-round RV occupancy is allowed7
- Tiny home
- No blanket county answer; treatment depends on local land-use rules and whether the unit is a primary, accessory, modular, or manufactured dwelling82
- Owner-builder
- Conditional for a sole owner building for personal, noncommercial use; the county certification sets project-history and labor limits9
- Minimum lot size
- Zone-specific; a one-family dwelling generally needs 5 acres in RR-5 and 50 acres in CE-1, subject to listed exceptions1011
- Private well
- A valid water right and state Start Card are required before well construction12
Who to call
Building permits
Utah County Community Development - Building
Building permits for unincorporated Utah County
51 South University Avenue, Suite 117, Provo, Utah 84601
Zoning
Utah County Community Development - Planning & Zoning
Zoning and zone-clearance requests for unincorporated Utah County
51 South University Avenue, Suite 117, Provo, Utah 84601
Septic permits
Utah County Health Department - Environmental Health
Onsite wastewater review and permits for Utah County
Health and Justice Building, 151 S University Ave, Suite 2600, Provo, Utah 84601
Floodplain permits
Utah County Public Works - Floodplain
Floodplain development permits in unincorporated Utah County
2855 South State Street, Provo, UT 84606
Roads & driveways
Utah County Public Works - Access Permits
Access permits for driveways or street connections to Utah County roads
2855 South State Street, Provo, UT 84606
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 Utah County, Utah?
Yes. Unincorporated Utah County requires owners or their agents to obtain a building permit before starting construction, changing a building's use, or doing regulated electrical, gas, mechanical, or plumbing work1. The county has adopted the Utah State Construction Code for unincorporated areas, along with the agricultural-building appendix13. A structure used for agriculture and not for human occupancy may qualify for an exemption from applicable building-permit requirements, but separate land-use, health, fire, plumbing, electrical, or mechanical requirements can still apply1415. A qualifying sole owner may use the county's owner-builder certification for personal, noncommercial residential work, subject to limits on project history and who performs the work9. Permitted work must be inspected before it is concealed, and the structure cannot be occupied until final approval1617.
Who issues Utah County building permits, and how do you reach them?
Utah County Community Development's Building Division issues building permits for unincorporated Utah County from 51 South University Avenue, Suite 117, Provo, Utah 8460118. Call 801-851-8343 or email [email protected]18. Property inside a city follows that municipality's codes and permit process instead18. To apply, complete the building permit application, attach the plans and documents required for the project type, and submit the package in person or electronically19. Utah County reviews the materials and may request corrections; after approval, the applicant signs the necessary documents, pays the required fees, and obtains the permit19. The county does not publish a single building-permit price on that application page, so ask the Building Division for a project-specific fee calculation before budgeting.
Does Utah County have zoning?
Utah County Community Development administers zoning throughout unincorporated Utah County; land inside a city is governed by that municipality220. The county publishes a zoning map for general information, but directs parcel-specific questions to Community Development21. In RR-5, a one-family dwelling generally needs at least 5 acres, subject to listed exceptions, and buildings other than a dwelling may cover no more than 15% of the lot1022. In CE-1, a one-family dwelling generally needs at least 50 acres11. Qualifying accessory dwelling units are allowed in zones where that use is listed as permitted; the county generally allows one per parcel and requires building, fire, health, parking, water, and sewage compliance23. Request written zone clearance before relying on a map or listing24.
How do septic permits work in Utah County?
Utah County Health Department Environmental Health administers onsite wastewater review and permitting in Utah County3. The published system permit and plan-review fee is $1,800, including the current state fee; repairs, alternative systems, holding tanks, abandonment, and vault privies have separate entries6. Call Environmental Health at (801) 851-7525 or visit the Health and Justice Building, 151 S University Ave, Suite 2600, Provo, Utah 8460125. Only 9.4% of county soils are rated free of severe limitations for a conventional septic drain field, so complete site and soil work before committing to a house location or price26. The available annual-inspection rule concerns operating permits for large underground wastewater disposal systems, not every residential septic system27. A dwelling must connect to public sewer when sewer is available and practicable; otherwise it needs an adequate onsite or approved wastewater system28.
Can you live in an RV or tiny home on land in Utah County?
Utah County's unincorporated-area ordinance defines camping as a recreational or temporary activity lasting less than 45 days per calendar year in a tent, trailer, camper, or other recreational vehicle7. County RV courts and commercial campgrounds likewise cannot allow an RV or camp user to remain more than 45 days in a calendar year29. Camping on county-owned property is allowed only in a designated county campground or with prior written county authorization30. These rules do not confirm year-round RV residence on a private parcel. Utah County allows qualifying accessory dwelling units where the zone lists them as permitted23. The county also allows qualifying manufactured homes in specified zones with a federal seal, permanent-foundation features, a building permit, and zoning compliance31. We could not confirm a separate county rule for tiny homes; ask Planning & Zoning for written zone clearance on the exact parcel and proposed unit24.
What are the steps to build a home in Utah County?
- Confirm that the parcel is outside city limits; Utah County Community Development serves unincorporated land only18.
- Request written zone clearance and verify the applicable zone, dwelling use, lot size, and parcel-specific constraints241011.
- Secure a water source. A private well requires a valid water right and a state Start Card before construction12.
- Obtain Health Department wastewater approval, or confirm that connection to available, practicable public sewer is required628.
- Obtain floodplain approval and road-access approval where applicable; state-highway access requires a UDOT conditional access permit32533.
- Submit the building application and plans, respond to corrections, pay the assessed fees, and obtain the permit19.
What should you check before buying land in Utah County?
Start with zoning and buildability: Utah County's minimum lot size varies sharply by district, and a recorded planned development or nonconforming-lot status can change the answer101134. Check wastewater feasibility early because only 9.4% of county soils are rated without severe limitations for a conventional drain field26. Verify water rights before assuming a domestic well can be drilled; a valid right and Start Card are required before well construction12. Map flood hazards because development in a designated floodplain needs a county permit before work begins32. Confirm legal access: county-road driveways need Public Works approval and must meet county standards for width, spacing, drainage, approach angle, grade, and surfacing535. A state-highway connection instead needs UDOT approval33. Finally, budget around an effective property-tax rate of about 0.5% and a median annual property-tax bill of about $2,2343637.
Watch-outs
- Utah County rules and offices described here apply to unincorporated land; property inside a city follows that municipality's process20.
- County-defined camping is temporary and lasts less than 45 days per calendar year, so do not treat a rural parcel as authorization for permanent RV occupancy7.
- A private well cannot be built merely because groundwater may be present; the owner needs a valid water right and a state Start Card first12.
- County-road driveways must meet county design standards in addition to obtaining Public Works approval355.
Sources
- Building - Utah County Community Development, quoted and re-checked
- Utah County Zoning Map, quoted and re-checked
- Annual Permits & Certifications, quoted and re-checked
- Utah County Public Works - Floodplain (publicworks.utahcounty.gov)
- Utah County Public Works - Access Permits (publicworks.utahcounty.gov)
- Fee Schedule 2026, quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- OPRO Accessory Dwellings (ADU's) and other dwelling types (Utah statewide rule), quoted and re-checked
- Building - Utah County Community Development, quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- FAQs, quoted and re-checked
- Utah County Code, Chapter 7, Building, quoted and re-checked
- Planning & Zoning - Utah County Community Development, quoted and re-checked
- Utah Code § 15A-1-204 (Utah statewide rule), quoted and re-checked
- Building - Utah County Community Development, quoted and re-checked
- Utah County Building Permit Application, quoted and re-checked
- Utah County Community Development - Building (codev.utahcounty.gov)
- Building - Utah County Community Development, quoted and re-checked
- Utah County Zoning Map, quoted and re-checked
- Utah County Zoning Map, quoted and re-checked
- Utah County Land Use Ordinance Update, quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- Utah County Community Development - Planning & Zoning (codev.utahcounty.gov)
- Utah County Health Department - Environmental Health (health.utahcounty.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Onsite Wastewater Program, quoted and re-checked
- DAR File No. 37575, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- Utah County Code, Chapter 13-9 Camping, quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- Floodplain - Utah County Public Works, quoted and re-checked
- Conditional Access Permit (Utah statewide rule), quoted and re-checked
- Utah County Land Use Ordinance, quoted and re-checked
- Utah County Code, Chapter 17-6, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: 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.