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Change of Use / Certificate of Occupancy in Rock Springs, Wyoming

Rock Springs Municipal Code Chapter 150 (Building Regulations) has no standalone change-of-use or certificate-of-occupancy section — its General Provisions run § 150.01 through § 150.17 (ending with sidewalk construction requirements) and then jump directly to the Electrical Code at § 150.30, with no dedicated C.O./change-of-use ordinance in between. The city instead relies on (1) the stock Certificate of Occupancy provisions of the adopted 2024 International Building Code (Section 111, adopted without local amendment per § 150.04), and (2) its Business License (Occupational Tax License) process, through which a change of occupant/use at an existing commercial building is screened for required Fire Department and Wastewater Department inspections and any Building-Code-mandated improvements.

Reviewed 2026-07-22 · Source

When you need this permit

  • No permit product named 'change of use permit' or 'certificate of occupancy permit' is published separately in the Municipal Code or on the city's Building Inspections & Permits Document Center (which lists only 6 documents: Building Permit Application, Permit - Demolition, and four construction detail sheets)
  • A Certificate of Occupancy is required under the adopted 2024 IBC (§ 150.04) before any new building may be occupied, and applies whenever a building's use or occupancy classification changes, per the stock (unamended) IBC Section 111 provisions
  • Starting a business, or changing a business's location, ownership, or use within an existing building, requires a Business License (Occupational Tax License) application through the City Clerk's Office; 'the simplest approvals occur when new operations match previous business types (retail to retail)'
  • The nature of a new or changed business use may require inspections by the City's Fire and Wastewater Departments before the license issues
  • Building Codes may determine that additional building improvements or remodeling are required based on a change of occupancy type; per this file's commercial-tenant-improvement-permit entry, any such required improvements are processed as a standard building permit under § 150.02(A)(1), charged under the general § 150.08(B) valuation-based fee schedule, with Occupancy Group/Division and Type of Construction identified on the plans per the 2024 IBC
  • Site Plans or Conditional Use Permits may separately be required depending on the property's zoning

Required documents

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Fee schedule

Change of use / Certificate of Occupancy — no standalone fee productCity of Rock Springs Business & Development Applications page; Rock Springs Municipal Code Chapter 150 contains no dedicated change-of-use/C.O. fee line
No independent change-of-use or certificate-of-occupancy fee is published; a Business License must be obtained (fee amount not confirmed in this chase), and if the Building Department requires improvements due to the occupancy change, the standard § 150.08(B) valuation-based building-permit fee applies to that work

Review timeline

Plan review
Not published — contact the department

How long did your Change of Use / Certificate of Occupancy permit actually take in Rock Springs?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Fire Department Inspection (if required)

    May be required depending on the nature of the new business/use, per the city's Business & Development Applications guidance

  2. 2

    Wastewater Department Inspection (if required)

    May be required depending on the nature of the new business/use

  3. 3

    Building Final / Certificate of Occupancy (if improvements required)

    If Building-Code-mandated improvements are triggered by the occupancy change, a final inspection and Certificate of Occupancy under the adopted 2024 IBC Section 111 follow the standard building-permit inspection sequence

See the full Rock Springs inspection guide — scheduling & re-inspection fees →

Tips

  • Rock Springs doesn't have a separate 'change of use permit' — there's a real gap between the low-friction, same-type reuse of an existing space (the city says retail-to-retail 'is the easiest type to get approved') and a use change significant enough to trigger Fire/Wastewater inspections or Building-Code-mandated improvements, and the city's process reflects that continuum rather than a single fixed product.
  • Start with the Business License (Occupational Tax License) Application through the City Clerk's Office — that application is the actual front door for a change of use in Rock Springs, not a building-permit-style application.
  • If your new use isn't the same general category as the prior tenant, budget time for Fire and/or Wastewater Department review, and be prepared for the Building Department to require code-driven improvements before occupancy.

Frequently asked questions

Rock Springs requires a change of use / certificate of occupancy permit for: No permit product named 'change of use permit' or 'certificate of occupancy permit' is published separately in the Municipal Code or on the city's Building Inspections & Permits Document Center (which lists only 6 documents: Building Permit Application, Permit - Demolition, and four construction detail sheets); A Certificate of Occupancy is required under the adopted 2024 IBC (§ 150.04) before any new building may be occupied, and applies whenever a building's use or occupancy classification changes, per the stock (unamended) IBC Section 111 provisions; Starting a business, or changing a business's location, ownership, or use within an existing building, requires a Business License (Occupational Tax License) application through the City Clerk's Office; 'the simplest approvals occur when new operations match previous business types (retail to retail)'; The nature of a new or changed business use may require inspections by the City's Fire and Wastewater Departments before the license issues; Building Codes may determine that additional building improvements or remodeling are required based on a change of occupancy type; per this file's commercial-tenant-improvement-permit entry, any such required improvements are processed as a standard building permit under § 150.02(A)(1), charged under the general § 150.08(B) valuation-based fee schedule, with Occupancy Group/Division and Type of Construction identified on the plans per the 2024 IBC; Site Plans or Conditional Use Permits may separately be required depending on the property's zoning. 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 Change of use / Certificate of Occupancy — no standalone fee product is: No independent change-of-use or certificate-of-occupancy fee is published; a Business License must be obtained (fee amount not confirmed in this chase), and if the Building Department requires improvements due to the occupancy change, the standard § 150.08(B) valuation-based building-permit fee applies to that work. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Rock Springs does not publish a plan-review timeline for this permit. Contact City of Rock Springs Public Services Department — Building Inspections & Permits (Chief Building Inspector) at (307) 352-1540 for current turnaround.

You'll need: Business License (Occupational Tax License) Application. Depending on your project, Rock Springs may also ask for: Building Permit Application (if improvements required). See the required-documents checklist on this page for details on each.

Rock Springs requires 3 inspection(s) for a change of use / certificate of occupancy permit, in order: Fire Department Inspection (if required), Wastewater Department Inspection (if required), Building Final / Certificate of Occupancy (if improvements required). 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.

Not as a standalone product. Chapter 150 of the Municipal Code has no dedicated change-of-use or certificate-of-occupancy section. Certificates of Occupancy are governed by the stock, unamended 2024 IBC Section 111, and a practical change of use at an existing commercial building is initiated through the city's Business License (Occupational Tax License) process instead.

Apply for a Business License through the City Clerk's Office. The nature of the new business may require Fire and/or Wastewater Department inspections, and the Building Department may require code-mandated improvements or remodeling based on the change of occupancy type, which would then require its own building permit.

Sources & verification

Key facts verified against official sources. Last reviewed 2026-07-22.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Rock Springs building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.