Summit County, Utah requires a building permit for most construction, alterations and demolition, with limited exceptions for small accessory and qualifying agricultural buildings.1 Unincorporated land is zoned under either the Snyderville Basin or Eastern Summit County development code, and the Summit County Health Department administers onsite wastewater systems.23
At a glance
- Building permit
- Required for most construction, alterations and demolition1
- Zoning
- Yes in unincorporated areas; the applicable code depends on the planning district2
- Septic
- Administered by the Summit County Health Department3
- RV living
- Private-land occupancy is not answered by the statewide RV-park rule; ask County Planning about the parcel45
- Tiny home
- Treatment depends on local land-use rules and the structure's classification65
- Owner-builder
- Available under a conditional certification process; permits and inspections still apply7
- Private well
- A valid water right and state Start Card are required before construction8
- Minimum lot size
- District-specific; some Eastern Summit agricultural zones use density standards based on land area per dwelling91011
Who to call
Building permits
Summit County Building Department
Building permits, plan review and inspections
60 North Main Street, P.O. Box 128, Coalville, UT 84017
Planning & zoning
Summit County Planning Department
Land-use regulation and planning permits in unincorporated Summit County
60 North Main Street, P.O. Box 128, Coalville, UT 84017
Septic permits
Environmental Health Division, Summit County Health Department
Onsite wastewater systems and septic complaints
650 Round Valley Drive, Park City, Utah 84060
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Summit County, Utah?
Yes. Summit County requires a building permit for construction, enlargement, alteration, repair, movement, improvement, removal, conversion or demolition of a building or structure, including solar installations.1 The listed exceptions include commercial accessory buildings smaller than 120 square feet, residential accessory buildings smaller than 200 square feet, certain agricultural buildings and fences below 7 feet.1 A qualifying agricultural structure must be used only for agriculture and not for human occupancy, and the exemption does not remove zoning, setback or height obligations.12
Utah's statewide construction standards apply to building construction, alteration, remodeling and repair, including the adopted 2024 International Building Code subject to statewide and local amendments.13 Building-permit projects are inspected, and the county says its mandatory inspection sequence may be supplemented for a particular job.14
Who issues building permits in Summit County, Utah?
The Summit County Building Department handles building permits, plan review and inspections, and applicants can reach the office at the contact information listed above.15 The county processes all building-permit submissions, reviews and issuance through EPROCESS 360; it does not accept paper plans or provide over-the-counter reviews.16 Required checklist documents must accompany the application, and incomplete packages are rejected for resubmission.16
Start with the Summit County Planning Department because some projects need a separate planning approval before the building application.16 Permit costs are project-specific: certain developments may owe transportation impact fees, and applicability is decided during building-permit review rather than by one uniform amount.17 For new construction, final Building and Engineering approvals are required before a certificate of occupancy can be issued, along with other applicable agency approvals.18
Does Summit County, Utah have zoning?
Yes, unincorporated Summit County has county-administered zoning, but the correct rulebook depends on the parcel's planning district.2 The Snyderville Basin Development Code governs the unincorporated area around Park City, while the Eastern Summit County Development Code governs the unincorporated areas around Henefer, Coalville, Oakley, Kamas and Francis.19 Incorporated municipalities administer their own land-use rules, so a city address should not be evaluated under the county's unincorporated-area standards.2
Do not infer a universal lot size or setback from the county name alone. Eastern Summit County's Agriculture Protection zone uses 40 acres of land per dwelling unit for density purposes, subject to stated code exceptions, while the agricultural grazing zones cited in the county research use 100-acre and 160-acre density standards.91011 The Agriculture Protection zone also has district-specific setbacks and a 32-foot building-height limit.2021
How do septic permits work in Summit County, Utah?
The Summit County Health Department is the local authority for onsite wastewater systems, operating under Utah's statewide onsite-wastewater rules.3 Utah identifies the local health department as the primary septic contact, and local health departments may apply stricter requirements, fees, servicing requirements and variance review.3 If public sewer is available and practicable, Utah requires connection; otherwise wastewater must go to an adequate onsite or other acceptable system.22
Site feasibility deserves early attention because only about 3.8% of mapped county soils avoid a severe USDA limitation rating for a conventional septic drain field.23 That statistic is a screening signal rather than approval for any parcel, so contact Environmental Health before fixing a house location or buying on the assumption that a conventional field will work.23 Final wastewater approval from the Health Department is required for a permitted project served by a septic tank before the county issues the applicable certificate of occupancy.18
Can you live in an RV or tiny home in Summit County, Utah?
Do not treat Utah's RV-park rule as permission to occupy an RV on private land in unincorporated Summit County. The state rule addresses temporary living quarters in an RV park and requires that park to comply with local zoning, building, health, fire and other ordinances.4 Ask the Summit County Planning Department how the applicable Snyderville Basin or Eastern Summit County development code treats the proposed use on the specific parcel.524
Tiny homes also require a parcel-specific answer. Utah's RV-park standard allows a qualifying tiny house in that regulated setting, but outside an RV park the result depends on local land-use rules and whether the unit is classified as a primary dwelling, accessory dwelling, modular unit or manufactured home.6 A small dwelling does not bypass Summit County's general building-permit requirement merely because it is called a tiny home.1
What are the steps to build a home in Summit County, Utah?
- Confirm whether the parcel is in a municipality, the Snyderville Basin or Eastern Summit County, then ask County Planning for the zoning district and required planning approval.224
- Resolve water and wastewater early: a private well needs a valid water right and a Start Card before construction, while onsite wastewater goes through the Summit County Health Department.83
- Prepare the applicable building checklist and submit the complete package through EPROCESS 360; paper plans are not accepted.16
What should you check before buying land in Summit County, Utah?
Verify jurisdiction and zoning before relying on a listing's description, because unincorporated Summit County uses separate Snyderville Basin and Eastern Summit County codes while municipalities have separate authorities.5 Check whether the parcel's district has density, setback or height rules that constrain the intended home; Eastern Summit agricultural districts show how widely those standards can vary.9101120
Investigate wastewater, water, slope, flood exposure and legal access before designing. Only about 23.7% of county land has a slope of 15% or less, and the county requires geotechnical reports at the stated slope threshold during permitting.251 Development in mapped Flood Zone A requires a floodplain permit, engineering calculations and elevation documentation.26 County-road driveways have dimensional and grade standards, while access to a state highway requires a state conditional access permit.2728 The median property-tax bill is about $3,469 per year, but parcel taxes will differ.29
Watch-outs
- A building permit does not replace planning approval; Summit County says some projects need the planning permit first.16
- Owner-builder status is a contractor-licensing exemption with strict limits, not an exemption from Summit County permits, inspections or codes.7
- For private-land RV occupancy, tiny-home occupancy and a countywide minimum dwelling size, obtain a parcel-specific answer from Summit County Planning because the reviewed rules do not provide one universal result.465
Sources
- Summit County Utah Building Department | Permits, Inspections & Construction Services, quoted and re-checked
- Development Codes for Summit County, Utah, quoted and re-checked
- Local Health Departments and District Engineers, quoted and re-checked
- Utah Administrative Code Rule R392-301, Recreational Vehicle Parks (Utah statewide rule), quoted and re-checked
- Development Codes for Summit County, Utah, quoted and re-checked
- OPRO Accessory Dwellings (ADU's) and other dwelling types (Utah statewide rule), quoted and re-checked
- Owner / Builder Certification Agreement, quoted and re-checked
- Water Well Drilling Information, quoted and re-checked
- Title 11, Eastern Summit County Development Code, quoted and re-checked
- Title 11, Eastern Summit County Development Code, quoted and re-checked
- Title 11, Eastern Summit County Development Code, quoted and re-checked
- Agricultural Exempt Application, quoted and re-checked
- Utah Code § 15A-2-103, Specific editions adopted of construction code, quoted and re-checked
- Required Inspection Checklist, quoted and re-checked
- Summit County Building Department (summitcountyutah.gov)
- Summit County Utah Building Department, quoted and re-checked
- Summit County Utah Building Department, quoted and re-checked
- Items needed to receive a Certificate of Occupancy, quoted and re-checked
- Development Codes for Summit County, Utah, quoted and re-checked
- Title 11, Eastern Summit County Development Code, quoted and re-checked
- Title 11, Eastern Summit County Development Code, quoted and re-checked
- DAR File No. 37575, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Summit County Planning Department (summitcountyutah.gov)
- Share of land at 15% slope or less: Bolthole Index county data
- Summit County Engineering Encroachment Permit Review Checklist, quoted and re-checked
- Summit County Engineering Encroachment Permit Review Checklist, quoted and re-checked
- Conditional Access Permit (Utah statewide rule), quoted and re-checked
- Median property tax bill: Bolthole Index county data
Written September 27, 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.