Residential Building Permit (New Construction) in Rock Springs, Wyoming

Rock Springs requires a residential building permit (new construction) for: Any person, firm or corporation desiring to construct, enlarge, alter, repair, move, convert, or demolish any building or structure must obtain a building permit from the Building Official before work begins (§ 150.02(A)(1)); Contractor/subcontractor/builder must have the permit issued and exhibited before commencing work (§ 150.02(A)(2)); Design must account for adopted design criteria: 30 psf ground snow load, 115 mph ultimate wind speed (Exposure C), 42-inch minimum frost depth; Mine Subsidence classification must be checked with City Engineering (307-352-1540); classified-area foundations must be designed to mitigate subsidence effects with a design engineer's statement on the plans; A dimensioned site plan showing utilities, setbacks, streets, alleys, and parking is required; Sewer connection fee is due at permit issuance if the property has not previously been assessed for the sanitary sewer system and a prior connection fee has not been paid (§ 150.02(A)(3)); General contractor must be a City of Rock Springs registered contractor ($125 registration fee + insurance certificate on file); Permit becomes null and void if work is not commenced within 180 days, or is suspended/abandoned for 180 days after commencement. If your project isn't listed, confirm with City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at (307) 352-1540 before starting work.

$1,100.00 flat fee, with no separate plan review fee, per Rock Springs Municipal Code § 150.08(B)(2). Larger or non-single-family residential projects are charged under the general valuation-based fee table instead.

Plan review for a residential building permit (new construction) in Rock Springs typically runs 10–30 business days. This is an estimate, not a published figure — confirm current review times with City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at (307) 352-1540.

You'll need: Building Permit Application; Construction Drawings; Site Plan. Depending on your project, Rock Springs may also ask for: Detail Sheet — Concrete (Foundations/Footings/Slabs). See the required-documents checklist on this page for details on each.

Rock Springs requires 4 inspection(s) for a residential building permit (new construction), in order: Foundation / Footings, Framing, MEP Rough-In, Final. Schedule each through City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) ((307) 352-1540).

Apply through City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at 212 D Street, Rock Springs, WY 82901. Phone: (307) 352-1540, email: webmaster@rswy.net. Office hours: Mon–Fri, 8:00 a.m. to 5:00 p.m., closed 12:30–1:30 p.m. for lunch. Official information: https://www.rswy.net/departments/public_services/building_inspections_permits.php.

Rock Springs, Wyoming has adopted: 2024 International Building Code (IBC) — with local amendments; adopted per Rock Springs Municipal Code § 150.04, including Appendix E, Appendix I and Appendix J, excluding Chapter 27; 2024 International Residential Code (IRC) — with local amendments per § 150.04(D); including Appendix BF, Appendix B, Appendix C and Appendix CA; excluding R-309, P2904, and several Section R-403.3 subsections/tables/figures; 2024 International Existing Building Code (IEBC) — adopted per § 150.04; 2024 International Mechanical Code (IMC) — with local amendment per § 150.04(C); 2024 International Plumbing Code (IPC) — with local amendment per § 150.04(C); including Appendix D (Degree Day/Design Temperatures), Appendix E (Sizing of Water Pipe Systems) and Appendix C (Structural Safety); 2024 International Fuel Gas Code (IFGC) — including Appendix A, Appendix B and Appendix C; 2024 International Fire Code (IFC) — per City of Rock Springs Building Ordinances page; National Electrical Code, 2023 edition (NFPA) — adopted per § 150.04; enforced locally by the City Electrical Inspector under Rock Springs Municipal Code §§ 150.30–150.36 (city electrical code), NOT the Wyoming State Fire Marshal default program. Local amendments apply — see the Rock Springs overview page for the full list.

For new structures or additions of 5,000 sq ft or larger, yes — architectural plans must be designed and stamped by a Wyoming registered architect, and structural, mechanical/plumbing, and electrical plans must be sealed by the respective Wyoming-licensed engineers, per the City's Nonresidential Building Permit Application checklist.