Skip to main content
PermitBase

Flood Plain Development Permit in Unincorporated Sheridan County, Wyoming

Required 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 2026-07-16 · Source

When you need this permit

  • 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

Check off what you have — your progress is saved on this device.

Not ready yet — 0 of 1 required documents checked.

This checker covers one permit. A full project usually triggers several — our checklist will assemble all of them, free →

Fee schedule

Flood Plain Development Permit fee (nonrefundable)Sheridan County Flood Plain Development Permit Application
$100.00

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Sheridan County building department
~5–20 business days

How long did your Flood Plain Development Permit permit actually take in Unincorporated Sheridan County?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Elevation Certification

    As-built Elevation Certificate or flood-proofing certification submitted immediately after the lowest floor/flood-proofing level is completed

See the full Unincorporated Sheridan County inspection guide — scheduling & re-inspection fees →

Tips

  • This permit applies countywide wherever a parcel is within the mapped Special Flood Hazard Area — it is independent of whether the parcel is inside or outside the Building Standards (building-code) Area.
  • A Floodway No-Rise Certificate (signed by a Wyoming-licensed PE) is required when the proposed development is within a regulatory floodway and must show no impact on base flood elevations.

Frequently asked questions

Yes. A Flood Plain Development Permit ($100) is required for development within the mapped Special Flood Hazard Area in unincorporated Sheridan County, regardless of whether the parcel is otherwise inside or outside the county's limited Building Standards Area.

In Unincorporated Sheridan County, the published Flood Plain Development Permit fee (nonrefundable) is: $100.00. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a flood plain development permit in Unincorporated Sheridan County typically runs 5–20 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: Flood Plain Development Permit Application. See the required-documents checklist on this page for details on each.

Unincorporated Sheridan County requires 1 inspection(s) for a flood plain development permit, in order: Elevation Certification. Schedule each through Sheridan County Public Works Department (Planning / Building Official) ((307) 674-2920 or (307) 675-2420).

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..

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

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.

Other permits in Unincorporated Sheridan County

Zoning PermitBuilding Permit (Sheridan County Building Standards Area ONLY)Septic / Small Wastewater System PermitDriveway / Road-Use (Access) PermitElectrical Permit (State Program)Solar PV PermitEV Charger / EVSE PermitSign Permit (WYDOT Outdoor Advertising Permit — no county-level sign permit)Fire Sprinkler / Fire Alarm Permit (State Program)Change of Use / Certificate of Occupancy

Flood Plain Development Permit in other cities

Unincorporated Albany County, WyomingUnincorporated Fremont County, WyomingUnincorporated Uinta County, WyomingBernalillo, New MexicoChubbuck, IdahoClifton, ArizonaDeming, New MexicoDuncan, Arizona

Compare flood plain development permit fees across Wyoming →

Look up this fee in a different city →

Embed this data card →

Now live

Build your Unincorporated Sheridan County project checklist

Describe your project once and get every permit, document, and fee it triggers in Unincorporated Sheridan County — in one checklist. Sign up and pay once to generate it, or go unlimited with Pro.

Get started →