This is PermitBase’s published record for Unincorporated Sheridan 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 It has since been superseded — see the current record.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 Sheridan County building permits
VerifiedUnincorporated Sheridan County, Wyoming — as published 2026-07-01.
Verified 2026-07-01 · Source
Codes adopted
Permit types & fees
Zoning Permit
VerifiedThe baseline land-use permit required countywide in unincorporated Sheridan County before new construction, additions, accessory structures, or a change of use — regardless of whether the parcel falls inside the mapped Building Standards (building-code) area. Verifies zoning district compliance, setbacks, access, and floodplain location; is NOT a structural building-code review outside the mapped Building Standards Area.
Verified 2026-07-01 · Source
Requirements
- Required prior to new construction (single-family, multi-family, accessory dwelling, commercial, industrial, or accessory building) or any change of use with no new construction
- Plot plan (to scale, no larger than 11x17) showing property lines/bearings/distances, point of access to public road/easement, easements/ditches/floodplain/water bodies, proposed and existing structure setbacks, building layout, and required parking
- Proof of ownership (recorded deed copy) and documentation of when the parcel was legally established
- Notarized authorization if an agent applies on the owner's behalf; LLC ownership requires documentation of signing authority
- Affidavit of Occupancy required if the structure is an accessory dwelling
- Copy of an approved access permit from the applicable agency (WYDOT for state highways, or the county driveway permit) must accompany the application
- Allow 10 business days for the county to determine the application is complete; issuance can take up to 30 days after the application is deemed complete
- A site inspection is performed upon permit approval; new construction must be staked out per the plot plan
- Each new building/structure/addition placed on a property requires a separate permit
Required documents
- RequiredSheridan County Zoning Permit Application (revised 5/1/2026)Official application form with zoning checklist, fee, and list of related state permits
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Zoning Permit fee (nonrefundable, due upon submittal) | $150.00 | Sheridan County Zoning Permit Application (rev. 5/1/2026) |
| Zoning Permit fee — new construction commenced prior to permit approval | $300.00 | Penalty-rate fee per the Zoning Permit Application when work starts before approval |
Building Permit (Sheridan County Building Standards Area ONLY)
VerifiedA true structural building-code permit under the adopted 2021 I-Codes package IS required, but ONLY for structures within the mapped 'Sheridan County Building Standards Area' (a zone around/adjoining the City of Sheridan — see Appendix A Planning Map), specific legacy subdivisions the BOCC already imposed permitting/inspection on before Dec. 5, 2006, all subdivisions approved after Dec. 5, 2006, and any structure built under a Conditional Use Permit. Outside that defined area, unincorporated Sheridan County generally has NO county building permit for private construction.
Verified 2026-07-01 · Source
Requirements
- 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, National Electrical Code, 2022 International Fire Code, and the Uniform Code for the Abatement of Dangerous Buildings, plus the current International Code Council Building Valuation Data
- 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
- Enforced by the Sheridan County Building Official
Required documents
- RequiredBuilding App & Submittal Requirements (rev. 5/1/2026)Sheridan County's building permit application and submittal checklist for parcels within the Building Standards Area
- RequiredBuilding Code Enforcement Area MapConfirms whether a given parcel falls within the mapped Building Standards Area
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building permit fee | Not published as a flat or valuation-based fee schedule on the county's public site | Could not ground a specific fee table for this limited-area building permit after checking the Building Standards rule and the Building In the County document center; contact Sheridan County Public Works at (307) 674-2920 to confirm current fees for parcels within the mapped area. |
Flood Plain Development Permit
VerifiedRequired countywide (including outside the Building Standards Area) for development activity within the mapped Special Flood Hazard Area, under Sheridan County's Rules and Regulations Governing Flood Plain Management. Covers new construction, substantial improvements, fill placement, and other development in the floodplain.
Verified 2026-07-01 · Source
Requirements
- Required for new construction, substantial improvement, fill placement, storage of materials/equipment, or drainage facility work within the mapped floodplain
- Plans in duplicate, drawn to scale, showing elevations of the project area and nature/location/dimensions of existing and proposed structures
- Elevation (NAVD 88) of the lowest floor level (including crawl space or basement) of all proposed structures
- Base Flood Elevation (BFE), with method and supporting documentation
- Design certification from a registered PE or architect for any flood-proofed non-residential structure
- Description of the extent to which any watercourse will be altered or relocated
- As-built Elevation Certificate (FEMA form) required immediately after the lowest floor/flood-proofing level is completed
- Permit expires one year after issuance unless the permitted activity has substantially begun and is pursued to completion
Required documents
- RequiredFlood Plain Development Permit ApplicationSheridan County Public Works application form, including the Floodway No-Rise Certificate template
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Flood Plain Development Permit fee (nonrefundable) | $100.00 | Sheridan County Flood Plain Development Permit Application |
Septic / Small Wastewater System Permit
VerifiedRequired countywide for installation of a new conventional septic tank and leachfield system (or other small wastewater disposal system) in unincorporated Sheridan County, under the county's Rules and Regulations Governing Wastewater Systems (aligned with WY DEQ Water Quality Rules and Regulations Chapter 25).
Verified 2026-07-01 · Source
Requirements
- Covers conventional systems only: wastewater flow under 2,000 gallons/day of domestic sewage, standard trench/bed disposal (stone-and-pipe or chambers), seasonal high groundwater/bedrock/impervious clay 4+ feet below the proposed leachfield bottom, and soil percolation rate between 5 and 60 minutes per inch
- Non-conventional systems (outside those parameters) require direct consultation with Sheridan County Public Works; systems over 2,000 gal/day or non-domestic waste route to the WY DEQ Underground Injection Control (UIC) Program
- Groundwater test pit dug 4 feet deeper than the bottom of the proposed leachfield, open at least 24 hours, and inspected by a Sheridan County representative prior to submission
- Percolation test performed per county instructions
- Proof of ownership (recorded deed) required; notarized authorization needed if applicant is not the owner
- 24-hour notice required to schedule the final inspection prior to backfilling the system
- Fee due upon submission; starting installation before approval is subject to a fine
Required documents
- RequiredSeptic System Permit Application (Sheridan County / WY DEQ design forms, Water Quality Division)22-page combined application, site suitability, percolation test, and leachfield design worksheet package
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Septic permit fee (due upon submission) | $250.00 | Sheridan County Septic System Permit Application |
Driveway / Road-Use (Access) Permit
VerifiedRequired countywide for any driveway or subdivision road entering a Sheridan County-maintained road; issued by Sheridan County Engineering at no charge. Driveways accessing a STATE highway instead require a WYDOT access permit, not a county permit.
Verified 2026-07-01 · Source
Requirements
- Required before performing any work within county right-of-way for a new or modified driveway/subdivision road access onto a county-maintained road
- Application specifies road name/number, township/range/section, mile point, and side of road
- County Engineer determines minimum culvert/drainage-structure size (minimum 18-inch round or equivalent pipe-arch, 24 feet long) and whether a Road-Use Agreement is required
- Gravel minimum 4 inches deep required on the driveway for at least 150 feet (or the driveway length, whichever is less) from the county road edge
- Permit is void if the driveway is not constructed within 6 months of approval
- Call (307) 674-2920 for County inspection once construction is complete
- Driveways onto STATE highways instead require a WYDOT Access Permit — not this county permit
Required documents
- RequiredSheridan County Application for Driveway Permit (updated 3/22)Combined application, policy statement, and administration/design standards packet
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Driveway permit fee | No charge — "There will not be a charge for issuing a driveway permit" | Sheridan County Application for Driveway Permit (updated 3/22), Administration item 1 |
Electrical Permit (State Program)
VerifiedElectrical wiring permits and inspections for unincorporated Sheridan County are issued by the Wyoming State Fire Marshal's Office — Dept. of Fire Prevention & Electrical Safety (Chief Electrical Inspector) under W.S. § 35-9-119, not by Sheridan County. Sheridan County's own Zoning Permit application directs applicants with new electrical work to the state program.
Verified 2026-07-01 · Source
Requirements
- New electrical work may require a permit through the WY Dept. of Fire Prevention & Electrical Safety (WSFM) prior to construction and inspection by the state electrical inspector
- 2023 NEC enforced statewide by the WSFM electrical program by default
- Apply online via wyelectrician.imagetrendlicense.com; Sheridan has a regional WSFM inspector office
Required documents
- RequiredWyoming State Fire Marshal Electrical Wiring Permit ApplicationState-issued application via the WSFM online portal
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Standard wiring permit | $50.00 (temporary/90-day permit: $40.00) | Permit fee waived if an inspection is requested and paid for. WY State Fire Marshal electrical fee schedule. |
| Residential inspection fee — 100A service | $70.00 (includes the $50 permit) | — |
| Residential inspection fee — 200A service | $120.00 (includes the $50 permit) | — |
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 Sheridan County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.