This is PermitBase’s published record for Unincorporated Sweetwater County as of 2026-07-20. It has since been superseded — see the current record.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 2026-07-20.
Verified 2026-07-16 · 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 2026-07-16 · 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 2026-07-16 · 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 2026-07-16 · 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 2026 NEC, not by the county. The WSFM's own code-adoption page states the 2026 edition of the National Electrical Code became effective July 1, 2026, superseding the previously-adopted 2023 NEC (confirmed via live re-fetch 2026-07-16; source: https://wsfm.wyo.gov/electrical-safety).
Verified 2026-07-16 · 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 |
Solar Energy System — On-Site (Rooftop/Ground-Mount PV) — Zoning Permit
VerifiedSweetwater County has no separate building-code solar permit (the county has no IBC/IRC building-code enforcement program at all — see zoning-construction-permit). A small on-site solar energy system (roof-mounted under 5 kW nameplate capacity, or ground-mounted with a footprint under 50% of the primary structure) is classified as a Residential or Non-Residential Accessory Use in the 2015 Zoning Resolution (Amended 2/18/25) and is permitted through the same Zoning Permit process as other construction, subject to dedicated solar design standards (height, setback, UL listing, glare). This is distinct from a large commercial 'Solar Energy Facility' (rated capacity over 0.5 MW), which requires a full Conditional Use Permit with siting review, fencing, 1.25-mile residential setback, and Growth Management Area exclusion — out of scope for typical rooftop/residential PV.
Verified 2026-07-20 · Source
Requirements
- On-site solar energy system defined as: roof-mounted with total nameplate capacity under 5 kW, OR ground-mounted with a footprint under 50% of the primary structure's footprint (2015 Zoning Resolution §4.B.3.g)
- Building- or roof-mounted systems must not exceed the maximum allowed height in the applicable zoning district
- Ground- or pole-mounted systems must not exceed 15 feet in height at maximum tilt, may not extend into the front/side/rear setback at minimum design tilt, and the total ground-mounted array area may not exceed 10% of the lot/parcel area
- Electric solar components must have UL listing and comply with the National Electrical Code
- Panels must be placed so concentrated solar radiation/glare is not directed onto nearby properties or roadways
- Apply through the Land Use Department's 'Construction' zoning-permit application (same application used for general construction) — no separate solar-specific application form was found published
- A Solar Energy Facility (commercial, rated capacity over 0.5 MW) is a fundamentally different, much larger-scale use requiring a Conditional Use Permit, perimeter fencing, 1.25-mile setback from residential properties/zoning, 40-acre minimum lot size, and exclusion from the Growth Management Area and Greater Sage Grouse Core Areas — not applicable to typical residential/rooftop PV
Required documents
- RequiredConstruction & Address Permit Application (Zoning Permit)Same zoning/land-use application form used for general residential and non-residential construction; no dedicated solar-only form is published
- RequiredSite planShowing system location, setbacks, and (for ground-mount) footprint relative to lot area, per the county's Example Site Plan Requirements
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Zoning Permit — Residential districts (RR, R-1, R-2, R-2/SF, R-3, MH, and residential uses in A district) | $50.00 | 2015 Zoning Resolution Amended 2/18/25, Section H.I.1 — flat zoning-permit fee; Show full citationHide2015 Zoning Resolution Amended 2/18/25, Section H.I.1 — flat zoning-permit fee; on-site solar is an accessory use in these residential districts and was not found to carry a separate, higher fee line. Confirmed by direct PDF text extraction of the county's own published Zoning Resolution. |
| Accessory Use Structures — Non-Residential districts | $500.00 | 2015 Zoning Resolution Amended 2/18/25, Section H.L.2 — applies where an on-site solar system is installed as an accessory use on non-residential (commercial/industrial/agricultural) zoned property |
| Late Application Fee (if construction starts before permit approval) — Residential / Non-Residential | $500.00 / $1,000.00 | 2015 Zoning Resolution Amended 2/18/25, Section H |
EV Charger / EVSE Permit
VerifiedSweetwater County has not taken delegated electrical-enforcement authority — electrical wiring permits in unincorporated Sweetwater County are issued by the Wyoming State Fire Marshal's Office (WSFM), Dept. of Fire Prevention & Electrical Safety, confirmed by the WSFM "Local and State Jurisdictions" chart (Sweetwater County ELEC INSP/PR = S/S) and the county's own Land Use page, which links out to the state electrical wiring permit as an external resource. An EV charger/EVSE installation therefore requires a State of Wyoming Electrical Wiring Permit through WSFM, not a county permit. WSFM publishes no distinct EV charger/EVSE fee line; a residential EVSE circuit is billed under the same standard wiring permit and residential service inspection fee structure used for all electrical work, under the 2026 NEC (effective July 1, 2026).
Verified 2026-07-20 · Source
Requirements
- State of Wyoming Electrical Wiring Permit (WSFM) required for EV charger/EVSE circuit installation in unincorporated Sweetwater County — apply through the state's online portal (wyelectrician.imagetrendlicense.com) or a regional inspector office (nearest listed regional offices include Green River)
- Do not contact Sweetwater County Land Use for electrical permits — this is a state program
- Installation must comply with the 2026 NEC as enforced statewide by WSFM effective July 1, 2026
- No distinct EV charger/EVSE fee line, expedited timeline, or SolarAPP+-style instant-permitting platform was found published by WSFM as of this review
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. Same base permit fee documented on this jurisdiction's Electrical Wiring Permit entry; no distinct EV charger/EVSE fee line is published. |
| Residential inspection, 100A (typical for a Level 2 EV charger circuit) | $70 | Includes the $50 permit fee. |
| Residential inspection, 200A | $120 | Includes the $50 permit fee — applicable if the EV charger installation requires a larger service upgrade. |
Sources & verification
Verified against official sources. Last reviewed 2026-07-16.
Applications & forms
Online permit portal
Codes & ordinances
Department & other records
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.