Unincorporated Weber County, Utah requires a building permit for new construction, applied for online through the county's OpenGov portal, and won't issue it without proof of an approved culinary water source and wastewater system12. The county zones its unincorporated land into agricultural, residential, commercial and manufacturing districts through its Planning Division3. Septic systems go through the Weber-Morgan Health Department rather than the county itself, and with only 2.6% of local soils free of severe limits for a standard drain field, a site evaluation matters more than the paperwork does45.
At a glance
- Building permit
- Required in unincorporated Weber County; apply online through OpenGov16
- Zoning
- Yes, agricultural, residential, commercial and manufacturing zones3
- Septic permits
- Weber-Morgan Health Department, Environmental Health Division4
- Owner-builder exemption
- Available, capped at 1 home a year and 3 homes in five years for your own noncommercial use78
- Permit expiration
- 180 days after issuance or your last inspection without progress9
- Final occupancy
- A final approval form signed by multiple agencies is required before you move in10
- Well permit
- A Start Card from the state water rights division serves as your permit to construct11
- Septic soils
- Only 2.6% of soils rate free of severe limits for a conventional drain field5
Who to call
Building permits
Weber County Building Inspection Division
Building permit applications, plan review and inspections for unincorporated Weber County (projects inside newly incorporated Ogden Valley City go through that city instead)
2380 Washington Blvd., Suite 270, Ogden, Utah 84401
Zoning
Weber County Planning Division
Administers zoning for unincorporated Weber County, including district determinations, setbacks, conditional uses and nightly-rental licensing
2380 Washington Blvd, Suite 240, Ogden, Utah 84401
Roads & driveways
Weber County Engineering Department
Issues excavation permits for driveway approaches, sidewalks, curb and gutter work in unincorporated Weber County
2380 Washington Blvd, Suite #240, Ogden, Utah 84401
Floodplain permits
Weber County Engineering Department
Reviews unincorporated Weber County development proposals for flood hazards and issues floodplain development permits
2380 Washington Blvd, Suite #240, Ogden, Utah 84401
Septic permits
Weber-Morgan Health Department - Environmental Health Division
Permits, reviews plans for, and inspects septic (onsite wastewater) systems and private wells for Weber and Morgan Counties
477 23rd Street, Ogden, UT 84401
Contact details are copied from each office’s official page and were checked against it on September 24, 2026.
Do you need a building permit in Weber County, Utah?
Yes. Utah's State Construction Code requires a permit for new construction and for most voluntary alterations, renovations or changes of use, and Weber County's Building Inspection Department applies that code in unincorporated areas through plan review and field inspections1213. All applications go through the county's OpenGov portal, plans are reviewed in the order received, and the county asks you to allow 14 working days for that review6. You'll also need proof of an approved culinary water source and wastewater approval, or the applicable connection fees, before the county will issue the permit2. A sole property owner building for personal, noncommercial use is exempt from Utah's contractor-licensing law, capped at one residential structure a year and three in five years — but that exemption doesn't touch the permit, inspection or zoning requirements themselves78.
Who is the Weber County building department, and how do you reach them?
Weber County Building Inspection Division handles permit applications, plan review and inspections for unincorporated Weber County14. If your project is in the newly incorporated Ogden Valley City instead, the county directs you to Ogden Valley City's own planning process rather than handling it directly2. Inspections must be scheduled in advance and the approved plans have to be on-site for every inspection; the county checks footing, foundation, underslab, roof sheathing, four-way rough, insulation and a final inspection before you can move in9. Your permit expires 180 days after issuance, or 180 days after your last inspection, if you don't show progress in that window9. Before final occupancy, a final approval form has to be signed by Planning and Zoning, the Health Department, your water provider, Weber Fire District, County Engineering, and whoever handles your sewer or septic — then it goes back to Building Inspection10.
Does Weber County have zoning, and what does that mean for RVs, tiny homes and setbacks?
Yes — Weber County zones unincorporated land into agricultural, residential, commercial and manufacturing districts, administered by the county Planning Division3. Utah law lets a county enact zoning and other land-use controls throughout its unincorporated area, so confirm your parcel's zone and any conditional-use requirements with Planning before you buy1516. In the county's Residential Estates (RE-15 and RE-20) zones, a main building needs a 30-foot front setback and a 30-foot rear setback, with a 10-foot side setback for a dwelling — different, smaller setbacks apply to accessory buildings and to lots approved under an older, now-repealed cluster subdivision code17. Short-term or nightly rentals are limited by zone: red-designated properties can't do nightly rentals at all, destination-resort or PRUD properties need a business license, and FR-3 (purple) properties need both a business license and a conditional use permit18. This guide could not confirm an official rule on tiny-home occupancy, manufactured-home placement, minimum dwelling size or lot coverage for Weber County's zoning code — ask the Planning Division directly for your specific parcel and zone16.
How do septic permits work in Weber County?
Septic (onsite wastewater) permits in Weber County come from the Weber-Morgan Health Department's Environmental Health Division, not the county itself, working under Utah's statewide onsite-wastewater rule419. Once your system is installed but before it's backfilled, the health department performs a final inspection, checking the building sewer, septic tank, distribution system, absorption field and separation distances — the tank must sit at least 5 feet from the dwelling and the drainfield, and distribution pipe can slope no more than 4 inches per 100 feet20. You can't use the system until that inspection passes and the department issues a certification letter20. If you need a well instead of or alongside a septic system, Utah requires a valid water right before you drill, and a Start Card issued on approval of that water right is essentially your permit to construct the well11. Before you buy, know that only 2.6% of Weber County's soils rate free of severe limits for a conventional septic drain field, so plan on a site evaluation before you count on a standard system5.
Can you live in an RV or tiny home on your land in Weber County?
Utah's rule for RVs and tiny houses in a recreational vehicle park requires the park to host at least two RVs, comply with local building, zoning, electrical, health and fire codes, and only admit tiny houses with a data plate or manufacturer certification — a tiny house under that rule tops out at 400 square feet2122. That rule governs RV parks specifically; the state's own guidance says whether a tiny home is allowed outside an RV park depends on local land-use rules and how the structure is classified — primary dwelling, accessory dwelling, modular unit or manufactured home22. This guide could not find an official Weber County rule confirming whether you can live long-term in an RV on your own private land, or camp there outside an approved campground — both remain open questions, so ask the Planning Division before you buy or move one in16. The county's short-term-rental rules by zone (red, green and FR-3/purple) govern nightly rentals, not full-time residency, so don't rely on them to answer this question18.
Building a home in Weber County: the steps, in order
- Confirm your parcel's zone and any setback or conditional-use requirements with the Weber County Planning Division before you buy16.
- Arrange your water source and, if you're not on public sewer, get the Weber-Morgan Health Department to evaluate your site and approve a septic system; expect at least a 5-foot separation from the tank to your dwelling and drainfield2320.
- If you need a well, secure a water right first; Utah issues a Start Card once that right is approved, and that card is your permit to construct the well11.
- If your site touches the floodplain, expect Weber County Engineering to review it for flood hazards; any structure, fill or disturbance in a Special Flood Hazard Area needs a floodplain development permit and sometimes an elevation certificate2425.
- Apply for your building permit online through the county's OpenGov portal, with proof of your approved water and wastewater systems attached; allow 14 working days for plan review142.
- Schedule inspections as work proceeds and keep approved plans on-site; your permit expires after 180 days of no progress, so keep it active9.
- Get your final approval form signed by Planning and Zoning, the Health Department, your water provider, the fire district, Engineering and your sewer/septic provider before you move in10.
What to check before you buy land in Weber County
Typical home values in Weber County run around $465,286, and farmland trades near $18,674 an acre — high for rural Utah, driven by Ogden-metro and mountain-valley demand2627. Only about 41% of the county's land sits at a gentle 15% slope or less, and about 20% of the county is federal land, mostly Wasatch mountain terrain that isn't available to buy2829. Annual rainfall is light for the region at about 27 inches, and severe drought hits roughly a quarter of years, so a reliable water source matters as much as the septic site3031. A private well permit runs $800 through the Weber-Morgan Health Department, or $230 if you just need the water tested23. If your driveway needs new pavement cut into an existing county road, expect a base fee plus a $150 surcharge for cutting new asphalt, which steps down by $50 a year over three years32. Effective property tax runs near 0.6%, with a typical annual bill around $2,415, and a typical homeowners insurance premium of about $1,110 a year333435. Before closing, confirm your zone and setbacks with Planning, your septic and well feasibility with Weber-Morgan Health, and whether your access road needs a driveway permit162336.
Watch-outs
- Weber County's own zoning code has no confirmed, findable rule on tiny-home occupancy, manufactured-home placement, minimum dwelling size or lot coverage; treat those as open questions, not permissions, and confirm directly with the Planning Division16.
- Long-term RV occupancy and temporary camping on private land in unincorporated Weber County are open questions this guide could not confirm from an official source; don't assume either is allowed without asking Planning first16.
- Only 2.6% of Weber County's soils rate free of severe limits for a conventional septic drain field; budget for a site evaluation before you count on standard septic costs5.
Sources
- Building Inspection (2026 county census)
- Building Inspection, quoted and re-checked
- Weber County Planning Division - FAQ (2026 county census)
- Weber County Development Process Packet (references Environmental Health septic permit) (2026 county census)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Building Inspection, quoted and re-checked
- Utah Code 58-55-305 - Exemptions from licensure (2026 county census)
- Utah Code § 58-55-305, Exemptions from licensure, quoted and re-checked
- Building Inspection, quoted and re-checked
- Final Approval Letter, quoted and re-checked
- Water Well Drilling Information, quoted and re-checked
- Utah Code Title 15A, State Construction and Fire Codes Act (Utah statewide rule), quoted and re-checked
- Building Inspection, quoted and re-checked
- Weber County Building Inspection Division (webercountyutah.gov)
- Utah Code, Title 17, Chapter 79, Section 17-79-101 (Utah statewide rule), quoted and re-checked
- Weber County Planning Division (webercountyutah.gov)
- Chapter 104-3 Residential Estates Zones RE-15 And RE-20, quoted and re-checked
- Planning - Nightly Rentals, quoted and re-checked
- DAR File No. 39821, Rule R317-4, Onsite Wastewater Systems (Utah statewide rule), quoted and re-checked
- Water Quality | Weber-Morgan Health Department, quoted and re-checked
- Utah Administrative Code Rule R392-301, Recreational Vehicle Parks (Utah statewide rule), quoted and re-checked
- OPRO Accessory Dwellings (ADU's) and other dwelling types (Utah statewide rule), quoted and re-checked
- Weber-Morgan Health Department - Environmental Health Division (webermorganhealth.gov)
- Weber County Engineering Department (webercountyutah.gov)
- Flood Maps, quoted and re-checked
- Typical home value (Zillow): Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Federal land share: Bolthole Index county data
- Annual precipitation: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Excavation Permits, quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Typical home insurance premium: Bolthole Index county data
- Weber County Engineering Department (webercountyutah.gov)
Written September 24, 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.