Commercial Tenant Improvement Permit in Riverton, Wyoming

Riverton requires a commercial tenant improvement permit for: Three complete sets of construction drawings carrying the seal of a Wyoming-licensed architect/engineer (or one electronic copy), per the New Commercial Construction Submittal Checklist; Cover sheet indicating scope of work, applicable codes, construction type, and occupancy/code analysis; Site plan showing utility connections to city sewer, storm drain, and water; Floor plans with occupancy, egress, and dimension detail; Structural, plumbing/mechanical, and electrical plans (electrical plans must include a complete one-line diagram); Energy code compliance forms imprinted on full-size plan sheets; accessibility compliance; Food processing/manufacturing facilities must separately contact Consumer Health Services (307-777-7211) for review before construction; Fire-resistive construction and required fire protection system details, plus a Geotechnical Report if applicable; Hazardous Materials Disclosure form (OES form) required for applicable occupancies. If your project isn't listed, confirm with City of Riverton Community Development Department — Building Division at (307) 856-2999 before starting work.

Commercial alterations are charged at $0.42 per square foot of alteration area ($50 minimum) per City of Riverton Resolution No. 1355. New commercial construction is $0.53 per square foot of building area.

Plan review for a commercial tenant improvement permit in Riverton typically runs 1–30 business days. This is an estimate, not a published figure — confirm current review times with City of Riverton Community Development Department — Building Division at (307) 856-2999.

You'll need: Application for Building Permit; New Commercial Construction Submittal Checklist. Depending on your project, Riverton may also ask for: Hazardous Materials Disclosure (OES form); Accessibility For Existing Buildings Compliance form. See the required-documents checklist on this page for details on each.

Riverton requires 3 inspection(s) for a commercial tenant improvement permit, in order: Rough-In (MEP), Rough Framing/Penetration Sealing, Final. Schedule each through City of Riverton Community Development Department — Building Division ((307) 856-2999).

Apply through City of Riverton Community Development Department — Building Division at 816 N. Federal Blvd., Riverton, WY 82501. Phone: (307) 856-2999, email: kpetersen@rivertonwy.gov. Office hours: Mon–Fri (contact department for current hours); building permitting/inspection line (307) 857-7708. Official information: https://www.rivertonwy.gov/departments/community_dev/building_permits___inspections/index.php.

Riverton, Wyoming has adopted: 2024 International Building Code (IBC), including appendices A, B, C, F, H, I, J, K — adopted by Enrolled Ordinance No. 25-003 (effective March 22, 2025); 2024 International Residential Code (IRC), including appendices AA, BA, BB, BC, BD, BE, BF, BG, BH, BO, CA, CB, CC, CD, CE, CF (excluding Chapter 11) — Ordinance No. 25-003; 2024 International Mechanical Code (IMC), including appendix A — Ordinance No. 25-003; 2024 International Plumbing Code (IPC), including appendices C, D, E, F — Ordinance No. 25-003; 2024 International Fuel Gas Code (IFGC), including appendices A, B, C, D — Ordinance No. 25-003; 2024 International Fire Code (IFC), including appendices A–G — Ordinance No. 25-003; 2024 International Code Council Performance Code (ICCPC) — Ordinance No. 25-003; 2024 International Property Maintenance Code (IPMC), including appendices A, B — Ordinance No. 25-003; 2024 International Existing Building Code (IEBC) — Ordinance No. 25-003; National Electrical Code (NEC) — NFPA 70; Riverton Municipal Code § 15.08.110(B)(2) ties compliance to 'the latest edition of the National Electrical Code,' which per wsfm.wyo.gov/electrical-safety is now the 2026 edition, effective statewide July 1, 2026 (the 2023 edition was the applicable 'latest edition' from July 1, 2023 until then) — adopted by the City of Riverton itself as Riverton Municipal Code Chapter 15.08 'Electrical Code'; enforced by the city's own electrical inspector, NOT solely the Wyoming State Fire Marshal's default statewide program; National Fire Codes (NFC), current editions, NFPA; National Housing Construction and Safety Standards Act of 1974 (as amended through May 30, 2006, HUD) — governs manufactured/mobile home construction; ICC/ANSI A117.1-2017 — Accessible and Usable Buildings and Facilities. Local amendments apply — see the Riverton overview page for the full list.