Sublette County, WY - 2026 Building Permit Guide

Permit Authority

Has authority over all unincorporated areas of Sublette County. The three incorporated municipalities -- Town of Pinedale, Town of Marbleton, and Town of Big Piney -- each administer their own building permit programs independently of the county.

Department

Sublette County Planning and Zoning Department

Address

21 S. Tyler Ave., Pinedale, WY 82941 (Sublette County Courthouse Annex)

Phone

(307) 367-4375

Website

https://www.sublettewyo.com/168/Planning-Zoning

Online Permit Portal

Application Process

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Typical processing time: Simple residential permit applications in unincorporated areas may be reviewed within one to three weeks. Projects requiring Planning Commission or BOCC review (CUP, SUP, subdivision) are subject to the applicable meeting schedule and public notice requirements and may take six to twelve weeks or longer from application to approval. Contact the office for current review timelines.

Source: Sublette County Planning and Zoning Department

General Requirements

A building permit is required for all new construction of structures in unincorporated Sublette County, including residential dwellings (single-family, multi-family), additions and accessory structures, garages, barns, shops, industrial and commercial buildings, manufactured home placements, and energy sector structures on private and state lease lands. Significant remodels, structural alterations, and changes of occupancy also typically require a permit.

Required Documents

• Completed Building Permit Application (signed by owner or authorized agent)
• Site plan (showing parcel boundaries, proposed structure location, setbacks, utilities, wells, septic)
• Construction drawings (foundation design, framing, roof framing, MEP layouts, structural details)
• Proof of legal access (access easement, road approach permit from county road department if applicable)
• Wyoming DEQ approval for on-site septic/wastewater system (if new septic system is being installed)
• Water well permit from Wyoming State Engineer's Office (if new well is being drilled)
• Flood Hazard Development Permit from the county Floodplain Administrator (if in a FEMA Special Flood Hazard Area)
• Owner/contractor information (name, contact, license information for licensed trades)

Permit validity

Permits are typically valid for 12 to 24 months from the date of issuance. Construction must commence within a specified period (commonly 180 days) of permit issuance. If construction does not commence or is suspended for an extended period, the permit may expire and a renewal or new application may be required.

Building code

Wyoming provides local governments with discretion to adopt building codes; the county's adopted standards govern unincorporated area construction. The International Residential Code (IRC) and/or International Building Code (IBC) may be referenced or partially adopted by county ordinance, with local amendments. Confirm the current edition with the Planning and Zoning office at (307) 367-4375.

Owner-builder

Property owners may act as their own general contractor for construction on their own property in Wyoming. Owner-builder declarations or affidavits may be required; confirm with the Planning and Zoning office.

Contractor requirements

Wyoming has no state general contractor licensing requirement. Electrical work must comply with the Wyoming State Electrical Code and be performed by or under the supervision of a Wyoming-licensed electrician. Plumbing and mechanical contractor licensing requirements are not mandated at the state level for residential work; confirm any local requirements with the county.

Fees

Payment note

In-person at the county office; check or money order payable to Sublette County is standard for Wyoming rural counties of this type; confirm whether credit card or cash is accepted by calling (307) 367-4375.

Work That Does NOT Require a Permit

• Minor repairs, painting, flooring, cabinet and countertop work, and similar finish work
• Agricultural structures used exclusively for agricultural purposes on agriculturally zoned parcels (confirm with county)
• Very small detached accessory structures (commonly under 200 sq ft, confirm threshold with county)

Important: The agricultural exemption for building permits is widely applicable in rural Wyoming, but the exact parameters (eligible structure types, size limits, required agricultural use documentation) are set by local ordinance and may be narrower or broader than a client assumes. Do not advise clients that agricultural structures are categorically exempt without confirming current county policy.

Inspections

How to Schedule

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Scheduling deadline

Advance notice of at least 24 to 48 hours is standard in Wyoming rural jurisdictions; confirm minimum notice requirements with the office.

Inspection hours

Monday through Friday, 8:00 am to 5:00 pm Mountain Time; closed on Wyoming state holidays

Time windows

In rural Wyoming counties with small planning and zoning departments, inspector availability may be limited. During the summer construction season and during periods of high oilfield construction activity in the Jonah Field and Pinedale Anticline areas, inspection wait times may increase. Coordinate inspection scheduling early in the construction timeline and do not assume next-day availability.

Typical inspection sequence: Standard residential construction typically requires: pre-construction/setout (optional), footing, foundation, underground utilities, framing, rough electrical (Wyoming state program), rough plumbing/mechanical, insulation, and final inspections. Commercial and industrial projects may require additional inspections for fire systems, alarms, and energy sector facilities.

Additional Resources

• Building code: Wyoming provides local governments with discretion to adopt building codes; the county's adopted standards govern unincorporated area construction. The International Residential Code (IRC) and/or International Building Code (IBC) may be referenced or partially adopted by county ordinance, with local amendments. Confirm the current edition with the Planning and Zoning office at (307) 367-4375.
• Zoning information: View zoning info
• Wyoming Department of Workforce Services -- Electrical Program
• Wyoming State Fire Marshal
• Wyoming Oil and Gas Conservation Commission
• Wyoming Department of Environmental Quality
• Wyoming State Engineer's Office
• Wyoming Board of Professional Engineers and Professional Land Surveyors
• FEMA Flood Map Service Center
• U.S. Army Corps of Engineers, Omaha District
• Bureau of Land Management, Pinedale Field Office
• Bridger-Teton National Forest, Pinedale Ranger District
• License lookup guide: Wyoming Contractor License Requirements
• Contract template: Wyoming Homeowner-Contractor Agreement
• Wyoming hub: Wyoming Contractor License & Permit Hub

Frequently Asked Questions

Sublette County Building Permit FAQ

Do I need a building permit in unincorporated Sublette County, WY?

A building permit is required for all new construction of structures in unincorporated Sublette County, including residential dwellings (single-family, multi-family), additions and accessory structures, garages, barns, shops, industrial and commercial buildings, manufactured home placements, and energy sector structures on private and state lease lands. Significant remodels, structural alterations, and changes of occupancy also typically require a permit.

How do I apply for a building permit in unincorporated Sublette County, WY?

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How long does it take to get a building permit in unincorporated Sublette County, WY?

Typical processing time is Simple residential permit applications in unincorporated areas may be reviewed within one to three weeks. Projects requiring Planning Commission or BOCC review (CUP, SUP, subdivision) are subject to the applicable meeting schedule and public notice requirements and may take six to twelve weeks or longer from application to approval. Contact the office for current review timelines..

What work is exempt from building permits in unincorporated Sublette County, WY?

The following work is generally exempt: Minor repairs, painting, flooring, cabinet and countertop work, and similar finish work; Agricultural structures used exclusively for agricultural purposes on agriculturally zoned parcels (confirm with county); Very small detached accessory structures (commonly under 200 sq ft, confirm threshold with county). Note: The agricultural exemption for building permits is widely applicable in rural Wyoming, but the exact parameters (eligible structure types, size limits, required agricultural use documentation) are set by local ordinance and may be narrower or broader than a client assumes. Do not advise clients that agricultural structures are categorically exempt without confirming current county policy.

How do I schedule a building inspection in unincorporated Sublette County, WY?

Inspections can be scheduled via: . Advance notice of at least 24 to 48 hours is standard in Wyoming rural jurisdictions; confirm minimum notice requirements with the office..