How building permits work in Wyoming
These rules apply across Wyoming. Each local guide above covers what is specific to that jurisdiction: its permitting office and contacts, local conditions, fees and inspections.
State-adopted codes and state review
Wyoming permitting is a mixed state and local system. The Department of Fire Prevention and Electrical Safety (the State Fire Marshal’s office) adopted the 2024 International Codes on 28 June 2024, and lists these as the state’s adopted codes: the 2024 International Fire, Building, Fuel Gas, Mechanical and Existing Building Codes and the 2026 National Electrical Code. It applies them through its plan review and its electrical-safety program, and new plan-review submissions must comply with them. Cities and counties may also adopt and enforce their own building, residential, plumbing, zoning, floodplain and development standards, so confirm which authority has jurisdiction before filing.
Contractor and electrical licensing
Wyoming does not license general contractors at state level; contractor licensing is handled locally by the city or county. Electricians and electrical contractors are licensed by the state through the Department of Fire Prevention and Electrical Safety and its Electrical Board, and electrical work is permitted and inspected by the state unless the city or county has taken on electrical enforcement itself, which the state delegates to local governments that adopt the standards and employ certified inspectors (W.S. § 35-9-121); Cheyenne, Casper and Laramie issue and inspect electrical permits themselves, and Gillette does so for residential work. Under Wyoming law a property owner or lessee may do the electrical work on their own property when it is not for immediate resale, but the work must still meet the code (W.S. § 35-9-123).
Plumbing, mechanical, fuel-gas, fire-protection, right-of-way and specialty work may need local licences, bonds, insurance certificates or separate trade permits, depending on where the project is and what it includes.