Commercial Tenant Improvement Permit in Rock Springs, Wyoming

Rock Springs requires a commercial tenant improvement permit for: A building permit is required for commercial remodels, additions, or tenant improvements (§ 150.02(A)(1)); Two sets of construction drawings required; for new structures/additions ≥5,000 sq ft: architectural plans stamped by a Wyoming registered architect, structural plans sealed by a Wyoming-licensed structural/civil engineer, mechanical/plumbing plans sealed by a Wyoming-licensed mechanical engineer, and electrical plans sealed by a Wyoming-licensed electrical engineer; Two sets of project specifications, if available; Site-specific soils investigation complying with 2024 IBC Section 1802; foundation design must be based on the soils report; Design loads shown on plans: 30 psf ground snow load, 115 mph wind speed (Exposure C), 42-inch minimum frost depth; Occupancy Group/Division and Type of Construction (per 2024 IBC) must be listed on the plans; Mine Subsidence classification must be listed per the adopted Mine Subsidence Risk Map — contact City Engineering (307-352-1540); Dimensioned site plan showing utilities, setbacks, streets, alleys, and parking; contact the City Planner for zoning/floodplain requirements (307-352-1540); Restaurants/food service facilities must submit plans to the Sweetwater County Health Department; Grease traps, sand/grease interceptors, or special sewage treatment require approval from the City's Pretreatment and Collections Supervisor (307-352-1466); Any code-mandated DEQ permits must be obtained/submitted before the building permit is approved and issued; Two full sets and one electronic set of plans amended per plan review comments must be submitted prior to permit issuance. 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.

In Rock Springs, the published Commercial building/tenant improvement permit fee (valuation-based) is: Charged under the § 150.08(B) general valuation-based fee schedule — same table used for residential new construction, scaled by project valuation. Additional published fees: Plan Review Fee — 65% of the building permit fee; Additional plan review (changes/revisions to plans) — $59 per hour (minimum charge: one-half hour); Outside consultants for plan checking/inspections — Actual costs (including administrative and overhead costs). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a commercial tenant improvement permit 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; Nonresidential Building Permit Application Checklist. See the required-documents checklist on this page for details on each.

Rock Springs requires 4 inspection(s) for a commercial tenant improvement permit, in order: Foundation, Framing / Structural, MEP Rough-In, Final / Certificate of Occupancy. 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 and additions of 5,000 sq ft or larger, yes — architectural plans need a Wyoming registered architect's stamp, and structural, mechanical/plumbing, and electrical plans each need the respective Wyoming-licensed engineer's seal, per the City's Nonresidential Building Permit Application checklist.