Building Safety in Wyoming (2026)
10 rules on the books across Wyoming, 2 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Fire Sprinkler Requirements
When residential and commercial buildings must install fire sprinkler systems, including new-construction triggers and major-renovation thresholds.
Childcare Center Rules
Building safety standards specific to family childcare homes and centers, including egress, sprinklers, lead and asbestos clearances, and outdoor play standards.
Carbon Monoxide Detectors
Where CO detectors are required (typically near sleeping areas in homes with fuel-burning appliances or attached garages), and seller/landlord deadlines.
Building Permits
When a building permit is required, new work, renovations, reroofing, decks, the small-project exemptions, and what unpermitted work costs when it surfaces at sale or inspection.
Casper
Some RestrictionsCasper requires a building permit for virtually every structure. Section 15.02.040 blocks any permit on unplatted land…
Read full rule →Cheyenne
Some RestrictionsCheyenne requires a building permit under its adopted 2024 International Building Code for nearly all construction…
Read full rule →Electrical Permits
Which electrical work (panel upgrades, EV chargers, solar inverters, sub-panels) requires a licensed-electrician permit vs. an owner-builder permit.
Casper
Some RestrictionsCasper adopted the NFPA 70-2023 National Electrical Code and requires a permit for nearly all wiring work. Section…
Read full rule →Cheyenne
Some RestrictionsCheyenne enforces the 2023 National Electrical Code and requires a permit from the building safety department before…
Read full rule →Plumbing Permits
Which plumbing work (water heaters, sewer-line replacement, repipe, gas-line) requires a permit, and which minor repairs are typically exempt.
Casper
Some RestrictionsCasper adopted the 2024 International Plumbing Code and requires a permit for nearly all plumbing work. Section…
Read full rule →Cheyenne
Some RestrictionsCheyenne adopts the 2024 International Plumbing Code by reference under City Code 15.12.010, requiring permits, plan…
Read full rule →Building Inspections
Required inspection types (rough framing, electrical, plumbing, final), how to schedule, what inspectors look for, and how to handle a failed inspection.