Building Permit (Sheridan County Building Standards Area ONLY) in Unincorporated Sheridan County, Wyoming

Unincorporated Sheridan County requires a building permit (sheridan county building standards area only) for: Required before construction of any building or structure valued over $5,000 (new construction, remodeling, repair, additions, or demolition) — ONLY for parcels within the mapped Building Standards Area, qualifying legacy/post-2006 subdivisions, or Conditional Use Permit structures; All construction, regardless of value, must conform to the adopted codes if the parcel is within scope; Codes adopted (per 'Building Standards, Sheridan County, Wyoming,' filed as County Clerk doc. #2023-785780, effective May 30, 2023): 2021 International Building Code, 2021 International Residential Code, 2021 International Mechanical Code, 2021 International Fuel Gas Code, 2021 International Plumbing Code, 2022 National Electrical Code, 2021 International Fire Code, and the Uniform Code for the Abatement of Dangerous Buildings, plus the current International Code Council Building Valuation Data (confirmed against the document's own Article II text and Exhibit 1 revision table, re-verified 2026-07-16); Farms/ranches on 40+ deeded acres, county hospitals, mines/oilfield/refinery facilities, and railway buildings/equipment are exempt from these codes even within the mapped area; Commercial buildings are covered by this SAME permit within the covered areas — Article I, Sec. 3(a) applies to 'all structures' and Article III, Sec. 1 to 'any building or structure' over $5,000, with the 2021 IBC adopted in whole; there is no separate county commercial permit, application, or fee anywhere in unincorporated Sheridan County (re-verified 2026-08-01 against the recorded ordinance, pages 6 and 9 of County Clerk doc. #2023-785780); Commercial projects ANYWHERE in unincorporated Sheridan County (inside or outside the Building Standards Area) that meet W.S. § 35-9-108 thresholds additionally require Wyoming State Fire Marshal plan review and a state Permit to Construct BEFORE work begins: state/local government owned or leased buildings, schools, buildings over 5,000 sq ft total area with public access (such as a business), child care centers for more than 10 children, multi-story buildings, places of assembly regardless of size, and alterations/remodels of any of those valued at $40,000+ (per ICC Building Valuation Data) — per wsfm.wyo.gov/fire-prevention/plan-review, fetched 2026-08-01; Enforced by the Sheridan County Building Official. If your project isn't listed, confirm with Sheridan County Public Works Department (Planning / Building Official) at (307) 674-2920 or (307) 675-2420 before starting work.

In Unincorporated Sheridan County, the published Building permit fee is: Not published as a flat or valuation-based fee schedule on the county's public site. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a building permit (sheridan county building standards area only) in Unincorporated Sheridan County typically runs 10–30 business days. This is an estimate, not a published figure — confirm current review times with Sheridan County Public Works Department (Planning / Building Official) at (307) 674-2920 or (307) 675-2420.

You'll need: Building App & Submittal Requirements (rev. 5/1/2026); Building Code Enforcement Area Map. See the required-documents checklist on this page for details on each.

Apply through Sheridan County Public Works Department (Planning / Building Official) at 224 South Main Street, Suite 428, Sheridan, WY 82801. Phone: (307) 674-2920 or (307) 675-2420, email: publicworks@sheridancountywy.gov. Office hours: Mon–Fri 8:00am–5:00pm (Sheridan County general office hours per the sheridancountywy.gov site footer, re-confirmed 2026-07-16; not separately published as Public-Works-specific hours). Official information: https://www.sheridancountywy.gov/departments/planning/building_in_the_county/index.php.

Unincorporated Sheridan County, Wyoming has adopted: NO countywide building code / NO general building permit for private construction in unincorporated Sheridan County. Per the Wyoming State Fire Marshal's 'Local and State Jurisdictions' chart, Sheridan County (county-level row) is listed BLDG INSP/PR = STATE and ELEC INSP/PR = STATE — the county has NOT taken general countywide building-code delegation under W.S. § 35-9-121, so the State Fire Marshal / state program has building and electrical jurisdiction across most of unincorporated Sheridan County.; IMPORTANT NUANCE (confirmed on the county's own site): Sheridan County DOES have an adopted 'Building Standards, Sheridan County, Wyoming' rule (adopted Nov. 18, 1991; last amended May 16, 2023, filed as County Clerk doc. #2023-785780) that adopts the 2021 International Building Code, 2021 IRC, 2021 IMC, 2021 IFGC, 2021 IPC, 2021 International Fire Code, the 2022 National Electrical Code, and the Uniform Code for the Abatement of Dangerous Buildings — but ARTICLE I, Section 3 (Applicability) confirms this code applies ONLY within a mapped 'Sheridan County Building Standards Area' (a defined zone around/adjoining the City of Sheridan shown on the Appendix A Planning Map), PLUS specific legacy subdivisions the BOCC imposed permitting/inspection on before Dec. 5, 2006, all NEW subdivisions approved after Dec. 5, 2006, and any structure built under a Conditional Use Permit. It does NOT apply countywide.; Farms and ranches on 40 acres or more of deeded land are specifically EXEMPT from the Building Standards code entirely (Article I, Sec. 3(b)(1)), as are county hospitals, mines/oilfield/refinery facilities, and railway buildings.; Where the Building Standards DO apply (the mapped area / qualifying subdivisions / CUP structures): a building permit is required before construction of any building/structure valued over $5,000 (Article III, Sec. 1), enforced by the Sheridan County Building Official.; Where the Building Standards do NOT apply (the vast majority of unincorporated Sheridan County — rural and agricultural land outside the mapped area): there is no county building permit for private construction; a Zoning Permit (land-use/setback compliance, not a structural building-code permit) is still required countywide for new construction or change of use.; Electrical: wiring permits/inspections are issued by the Wyoming State Fire Marshal's Office — Dept. of Fire Prevention & Electrical Safety (Chief Electrical Inspector), not Sheridan County, per the county's own Zoning Permit application which directs applicants doing new electrical work to WSFM..

Yes, but only for a mapped area near the City of Sheridan (plus certain qualifying subdivisions and Conditional Use Permit structures) — see the county's Building Code Enforcement Area Map. Outside that area, there is no county building-code permit; only the countywide Zoning Permit and the exception permits (floodplain, septic, driveway/access, state electrical) apply.

No. Within the mapped Building Standards Area (and qualifying subdivisions/CUP structures), commercial construction uses this same building permit — the ordinance applies to 'all structures' and adopts the 2021 International Building Code in whole, with no commercial-specific permit, form, or fee. Outside those areas the county issues no structural building permit for commercial construction at all; a commercial project there needs the countywide $150 Zoning Permit and, if it meets W.S. § 35-9-108 thresholds (public-access buildings over 5,000 sq ft, places of assembly, schools, multi-story buildings, government buildings, child care centers for 10+ children, or $40,000+ alterations of these), a Wyoming State Fire Marshal plan review and Permit to Construct before work begins.