Unincorporated Sanpete County, Utah requires a county building permit before erecting, constructing, reconstructing or altering a building or structure.1 County zoning applies only in the unincorporated area; cities and towns approve their own zoning.23 Onsite wastewater permits come from the Central Utah Public Health Department.4 Full-time RV living on a parcel is prohibited.5
At a glance
- Building permit
- Required for construction in unincorporated areas1
- Zoning
- County zoning applies in unincorporated areas2
- Septic
- Permit through Central Utah Public Health Department4
- RV living
- Full-time residential living is prohibited5
- Tiny home
- Classification and occupancy are not confirmed; ask Planning & Zoning6
- Owner-builder
- A conditional state contractor-license exemption is available7
- Minimum home size
- A standard dwelling must have at least a 24-by-24-foot footprint8
- Non-production well
- State approval is required before drilling9
Who to call
Building permits
Sanpete County Building Department
Building permits and inspections for unincorporated Sanpete County
160 North Main Suite 201 Manti, UT 84642
Zoning
Sanpete County Planning & Zoning
Zoning, land-use and agricultural building exemption approvals
160 North Main Suite 203 Manti, UT 84642
Septic permits
Central Utah Public Health Department — Manti Office
Onsite wastewater permits for Sanpete County
125 North 100 East Manti, Utah
Roads & driveways
Sanpete County Road Department
County-road encroachments, new driveways and business approaches
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Sanpete County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Sanpete County, Utah?
Yes. A permit from the County Building Official is required before erecting, constructing, reconstructing or altering a building or structure in unincorporated Sanpete County.1 The county describes most new homes, additions, remodels, structural changes, accessory structures, and electrical, plumbing or mechanical work as permit work.10 Utah's adopted construction standards apply to construction, alteration, remodeling and repair, subject to statewide and local amendments and statutory exceptions.11
Permit work is inspected, and a permit closes when the county issues a certificate of occupancy or records a passing final inspection.12 A permit becomes void after 180 days, but that period restarts whenever a building inspector passes a required inspection; the Building Official may grant an extension for extenuating circumstances.12 Occupancy requires a certificate of occupancy from the county Building Inspection Department unless the Building Official authorizes qualifying temporary occupancy.13
Who issues building permits in Sanpete County, and how do you reach them?
The Sanpete County Building Department is the first stop for a project in the unincorporated county; its published process begins with registration in the online permit system.1410 The office is at 160 North Main, Suite 201, in Manti, and its phone number is 435-835-2113.10 Applicants may also need separate approvals from Planning & Zoning and Central Utah Public Health Department.14
Sanpete County Planning & Zoning manages zoning applications online and is at 160 North Main, Suite 203, in Manti; call 435-835-2115.15 A property inside city limits needs zoning approval from the applicable city before the county building-permit application is submitted.3 Zoning approval for unincorporated land comes from county Planning & Zoning, and septic permits come from Central Utah Public Health Department, not the Building Department.24 Starting without a required permit may bring investigation fees equal to the permit fee, although the actual building-permit fee schedule could not be confirmed; ask the Building Department for the current amount.14
Does Sanpete County have zoning, and who issues zoning approvals?
Yes. Sanpete County's land-use and zoning ordinance governs the unincorporated area, while incorporated cities and towns administer their own zoning approvals.23 Minimum lots are 1 acre in the Agricultural zone, one-half acre in RA-1, 1 acre in RA-2 and 5 acres in Sensitive Lands, with separate density standards.16 Agricultural and Sensitive Lands parcels also have a 25% built-area limit, while RA-1 and RA-2 list 100%.17
The Agricultural, RA-1 and RA-2 zones generally require a 66-foot front setback from the road center or 30 feet from the property line, whichever is greater, plus 10-foot side and rear setbacks.1819 Sensitive Lands uses the same front rule but 30-foot side and rear setbacks.20 Non-agricultural structures in the Agricultural, RA-1 and RA-2 zones are generally limited to a basement covered on 2 sides and 2 stories, while Sensitive Lands lists no maximum height; confirm accessory-building height directly with Planning & Zoning because the ordinance table is ambiguous.21 Commercial, industrial and public-facilities zones have different standards, and Sanpete County does not confirm how every tiny home is classified.2223246
Who issues septic permits in Sanpete County, and how do they work?
Central Utah Public Health Department issues onsite wastewater construction permits for Sanpete County.25 Contact its Manti office at 125 North 100 East or (435) 835-2231.26 The application requires a soil classification, site plan and system design; published nonrefundable fees are $600 for a conventional system, $900 for an alternative system and $200 for a repair or replacement.25
Public sewer connection is required when available and practicable.27 For subdivision lots using septic or sealed vaults, sewer must be more than 300 feet from the subdivision boundary, written state and health-department approval is required, and soil mapping and percolation results must be submitted.28 Operating permits for large underground wastewater disposal systems require annual inspections by qualified onsite professionals.29 Only about 6.2% of mapped county soils avoid a “very limited” rating for a conventional drain field, so resolve wastewater feasibility before treating a parcel as buildable.30
Can you live in an RV or tiny home on land in Sanpete County?
Full-time residential living in a recreational vehicle on a parcel in unincorporated Sanpete County is prohibited.31 No more than 2 RVs may be permanently placed on a parcel, and each must be licensed, operable, ready for highway use, and equipped with self-contained sewage-disposal and water systems.31 An RV kept permanently or year-round, including a park model, must connect to a state-approved septic system; permanent skirting and additions are not allowed.31 Temporary camping on an ordinary private parcel outside an approved RV park or campground could not be confirmed; ask Planning & Zoning before relying on it.32
An RV park is a conditional use in county zones and requires an annual business license after health, building and county approvals; if recorded covenants do not set a stay limit, a stay may not exceed 60 consecutive days.32 Sanpete County does not confirm how every product marketed as a tiny home is classified, so ask Planning & Zoning before purchase.6 A detached accessory dwelling unit needs at least 1 acre, may not exceed 1,000 square feet of habitable floor area, must be site-built rather than a manufactured home, mobile home or RV, and is prohibited in the Sensitive Lands zone; it also needs a permitted septic system and an approved water source.33 A manufactured home is allowed only where a single-family residence is permitted and must sit on a permanent foundation while meeting the applicable zoning, building-code and subdivision rules.34
Building a home in Sanpete County: what are the steps?
- Confirm that the parcel is in unincorporated Sanpete County; property inside a city or town needs that municipality's zoning approval before a county permit application.3
- Ask Planning & Zoning to confirm the use, zone, lot size and setback standards, then apply online.161815
- Submit a complete development plan to the Planning Commission before dividing land in unincorporated Sanpete County; an agricultural plat exemption requires qualifying agricultural use, zone-compliant parcel sizes and continued agricultural use.3536
- Submit the soil classification, site plan, system design and fee to Central Utah Public Health Department before septic construction starts.25
- Resolve access with the County Road Department or, for a state highway, UDOT.3738
- Register online and submit the building-permit application and supporting approvals.1410
- Complete required inspections and obtain a passing final inspection or certificate of occupancy.1213
What should you check before buying land in Sanpete County?
Start with jurisdiction, legal access, water, wastewater feasibility, zoning and the legal status of the parcel. County zoning governs unincorporated land, but cities and towns handle their own zoning approvals.23 Sanpete County regulates division, sale and recording of parcels created from larger tracts in the unincorporated county.35 An agricultural division avoids plat requirements only if every resulting parcel qualifies for agricultural use, meets its zone's minimum size and remains agricultural until a later zone change; the approved application must be recorded within 6 months.36
For county-road access, contact the Road Department; a state-highway connection or change in access intensity uses UDOT's conditional-access process.3738 A non-production well needs Utah Division of Water Rights approval.9 Check lot coverage, height and setbacks as well as lot size and density before assuming acreage is buildable.172116 Only about 37.7% of county land has a slope of 15% or less, and about 6.2% of mapped soils avoid severe limitations for a conventional drain field.3930
Watch-outs
- Sanpete County is not accepting or processing building-permit applications for projects accessing Pine Creek Road during the temporary development moratorium announced as of June 16, 2026.110
- An owner-builder exemption is an exemption from contractor licensing, not from building permits, inspections, zoning or construction-code requirements.7
- A structure used solely for agriculture and not for human occupancy may qualify for a state construction-code exemption, but plumbing, electrical or mechanical permits may still be required and Sanpete County requires Planning & Zoning approval first.4041
- An agricultural land division is exempt from plat requirements only while each resulting parcel qualifies for agricultural use, meets its zone's minimum size and is not used for a non-agricultural purpose before a qualifying zone change.36
Sources
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Onsite Wastewater Permit Instructions, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance (2026 county census)
- Utah Code Section 58-55-305, Exemptions from licensure, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Non-Production Wells, quoted and re-checked
- Sanpete County Building Department (sanpetecountyutah.gov)
- Utah Code § 15A-2-103, effective July 1, 2026, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Building Department, quoted and re-checked
- Sanpete County Planning & Zoning (sanpetecountyutah.gov)
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Onsite Wastewater Permit Instructions, quoted and re-checked
- Central Utah Public Health Department — Manti Office (centralutahhealth.gov)
- DAR File No. 37575, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
- Sanpete County Subdivision Ordinance, quoted and re-checked
- Onsite Wastewater Program, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Land Use Ordinance, quoted and re-checked
- Sanpete County Subdivision Ordinance, quoted and re-checked
- Sanpete County Subdivision Ordinance, Adopted 06.06.23, quoted and re-checked
- Road Department, quoted and re-checked
- Conditional Access Permit (Utah statewide rule), quoted and re-checked
- Share of land at 15% slope or less: Bolthole Index county data
- Utah Code § 15A-1-204 (Utah statewide rule), quoted and re-checked
- Planning & Zoning | Sanpete County, UT, quoted and re-checked
Written October 9, 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.