This is PermitBase’s published record for Unincorporated Sweetwater County as of 2026-07-01. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.
Unincorporated Sweetwater County building permits
VerifiedUnincorporated Sweetwater County, Wyoming — as published 2026-07-01.
Verified 2026-07-01 · Source
Codes adopted
Permit types & fees
Zoning/Construction Permit (Land Use) — not a building-code permit
VerifiedSweetwater County does not issue a code-enforcement building permit for private construction. Instead, the county's Land Use Department requires an approved ZONING permit before any residential, commercial, industrial, or mineral construction/use begins in the unincorporated county — most projects use the 'Construction' application (which also covers oil & gas well permitting). This is a land-use/zoning approval, not an IBC/IRC building-code plan review or inspection program.
Verified 2026-07-01 · Source
Requirements
- Confirm zoning district and any Growth Management Plan overlay requirements (Rock Springs/Green River growth-area) before applying
- Submit the 'Construction' application form (covers residential and non-residential construction, including oil & gas wells) available from the Land Use Office
- Submit an Address application if establishing a new address is also needed
- Apply BEFORE construction begins — the county assesses a Late Application Fee for construction started without an approved permit application
- Contact the Land Use Office (307-872-3914 or 922-5430) if unsure which application applies to your project
Required documents
- RequiredConstruction & Address Permit ApplicationPrimary zoning/land-use application form for residential, commercial, industrial, and mineral construction (including oil & gas wells) in unincorporated Sweetwater County
- RequiredSite planPer the county's published 'Example - Site Plan Requirements' guidance sheet available from the Land Use Office application forms page
Fee schedule
| Fee type | Amount | Notes |
|---|
Septic / Small Wastewater System Permit
VerifiedNew or replacement septic (onsite wastewater) systems in unincorporated Sweetwater County are permitted through the Sweetwater County District Board of Health's Environmental Health division, not the Land Use building/zoning office. Approval of septic applications is by appointment only.
Verified 2026-07-01 · Source
Requirements
- Obtain and complete the Conventional Septic System Application Package from Environmental Health
- Schedule an appointment — the county approves all septic applications by appointment only
- Larger or non-conventional systems may fall under Wyoming DEQ small-wastewater-system permitting rather than the county's conventional-system program
Required documents
- RequiredConventional Septic System Application PackageCounty Environmental Health's septic application PDF packet
Fee schedule
| Fee type | Amount | Notes |
|---|
County Access / Driveway Permit (Public Works — Engineering)
VerifiedNew road access onto a county road, or any work/activity within a county road right-of-way not covered by a utility license, requires a County Access Permit from the Public Works Department's Engineering division. Utility lines crossing or paralleling a county road use a separate County Utility License (Type A for buried lines, Type B for overhead/short-parallel lines).
Verified 2026-07-01 · Source
Requirements
- Submit the County Access/Driveway Permit Application Form for any new road access onto a county road
- Use County License Type A for buried utility lines crossing or paralleling a county road 1,000+ feet
- Use County License Type B for overhead utility crossings or parallel runs under 1,000 feet
- Note: the County Address Permit itself is now issued through the Land Use (Planning & Zoning) application, not through Public Works
Required documents
- RequiredCounty Access/Driveway Permit ApplicationPublic Works Engineering's access-permit application form
- OptionalCounty License Type A or Type B ApplicationRequired only for utility-line road crossings/parallel runs, not for driveway access itself
Fee schedule
| Fee type | Amount | Notes |
|---|
Electrical Wiring Permit (State Program)
VerifiedSweetwater County has not taken delegated electrical-enforcement authority, so electrical wiring permits in unincorporated Sweetwater County (including Green River, per the WSFM chart) are issued by the Wyoming State Fire Marshal's Office — Dept. of Fire Prevention & Electrical Safety (Chief Electrical Inspector) under the 2023 NEC, not by the county.
Verified 2026-07-01 · Source
Requirements
- Apply through the state's online portal (wyelectrician.imagetrendlicense.com) or the regional inspector office (nearest listed regional offices include Green River)
- Standard wiring permit fee is $50 ($40 for temporary/90-day); the permit fee is waived if you pay for an inspection instead
- Residential inspection fees (include the $50 permit): 100A $70, 125A $82.50, 150A $95, 200A $120, 300A $170, 400A $220
Required documents
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standard wiring permit | $50 | $40 for temporary/90-day permit; waived if an inspection is requested and paid for |
| Residential inspection, 100A | $70 | Includes the $50 permit fee |
| Residential inspection, 200A | $120 | Includes the $50 permit fee |
Sources & verification
Verified against official sources. Last reviewed 2026-07-01.
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Sweetwater County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.