Prefab homes in Wyoming
Prefab homes in Wyoming built for high-altitude resilience—from rural ranch properties and mountain locations to modern builds near Cheyenne, Casper, and Laramie. Delivered as panelized kits with stamped plans.
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How much will it cost to build a prefab in Wyoming?
Many owners budget about $150–$220 per sq ft for prefab construction in Wyoming (home-only), with totals varying by finishes, site work, and location. Rural areas may require added expenses for small wastewater systems (septic), well drilling, extensive site preparation, foundation considerations for Wyoming's climate extremes and high altitude, and utility line extensions to remote properties.
Wyoming Prefab Resources
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Zoning & Permits
Wyoming has adopted the 2021 International Residential Code (IRC 2021) without state amendments for residential construction. The Wyoming State Fire Marshal adopted the 2024 IBC, IFC, IMC, IFGC, and IEBC, effective for plan reviews from June 28, 2024. Local jurisdictions may adopt and enforce building codes with local amendments. The UpCodes Wyoming resource provides code information. Contact your local building department or county planning office for specific permitting requirements and code enforcement status.
Off-Grid & Rural Builds
For rural builds not connected to public sewer, small wastewater systems (septic tanks and leachfields) are regulated by the Wyoming Department of Environmental Quality under Water Quality Rules Chapter 25. Permits are required for systems treating less than 2,000 gallons per day. DEQ is the permitting authority in Campbell (commercial only), Carbon, Niobrara, Platte, and Weston Counties. Many other counties have delegated authority. Contact your county or DEQ District Engineer for permitting requirements.
Energy Code & Efficiency
Wyoming does not have a mandatory statewide energy code for residential construction. The state references the 1989 CABO Model Energy Code (MEC) in Appendix Chapter 53 of the 1991 Uniform Building Code, but enforcement is optional. Local jurisdictions may adopt and enforce energy codes as they see fit. The Building Codes Assistance Project provides information on jurisdictional energy code adoptions. Contact your local building department to determine if energy code requirements apply to your project.
Local Zoning Tools
Zoning in Wyoming is administered entirely at the local level. Cities and municipalities have authority to adopt and enforce building codes and zoning regulations. Many jurisdictions have adopted versions of the IBC and IRC with local amendments. Counties administer small wastewater system permits through delegated authority from DEQ or through DEQ directly. Contact your local county planning office, city building department, or municipality for zoning requirements, setback distances, and land use regulations specific to your property.
Tip
If you're unsure about your parcel's status—whether it requires small wastewater system approval through DEQ or your county, falls under local building code enforcement jurisdiction, or needs specific foundation requirements for Wyoming's climate—contact your local building department, county planning office, or the appropriate DEQ District Engineer directly. In Wyoming, building codes and enforcement vary significantly by jurisdiction. The resources above are a great place to start.