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Change of Use / Change of Occupancy Permit in Green River, Wyoming

Green River does not publish a standalone 'Certificate of Occupancy' application separate from its general Building Permit process. A change in the use or occupancy of an existing building or structure is expressly regulated as permit-triggering work under Section 105.1 of the adopted International Building Code (2024 IBC, per Sec. 7-16): any owner or authorized agent who intends to '...change the occupancy of a building or structure...' must first apply to the Building Official and obtain the required permit. The City's own Building Permit FAQ separately confirms that those intending to '...change the occupancy of a building' must call Development Services to schedule required inspections, and the Business Services page notes the Building Department may contact a business owner if a new business represents 'a change in occupancy use of the structure.' The Zoning Permit process (Development Services FAQ) also lists 'change in use [of] a property' among the actions requiring Zoning Permit approval, meaning a genuine change of use in Green River is a joint Zoning + Building Permit event rather than a single dedicated 'CO' product.

Verified 2026-07-22 · Source

When you need this permit

  • Change of occupancy is processed as a Building Permit application under Section 105.1 of the adopted IBC (Sec. 7-16) -- not as a separate 'Certificate of Occupancy' product
  • A change in use of a property separately triggers Zoning Permit (Approval) requirements per Development Services' published FAQ list
  • For a new business occupying an existing structure, the Business License application is routed to Planning & Zoning staff to confirm proper zoning, and to the Building Department, which may contact the owner if the new use represents a change in occupancy classification requiring inspection/permit
  • Required inspections must be scheduled with Development Services a minimum of 24 hours in advance, (307) 872-6140
  • Confirm with Development Services whether your specific change of use also requires Wyoming State Fire Marshal's Office review (see fire-sprinkler-alarm-permit entry and this file's localAmendments notes on commercial WSFM review) and/or a Commercial Tenant Improvement Permit if the space is being physically altered for the new use

Required documents

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Fee schedule

Building Permit Fee -- charged under the general valuation-based Building Permit fee scheduleCity of Green River Development Services Fees schedule (effective July 1, 2018); a pure occupancy-classification change with no construction scope may have no associated Building Permit fee line at all -- not confirmed either way, confirm with Development Services.
No distinct 'Certificate of Occupancy' or 'change of use' flat fee is published; where the change of occupancy involves construction/alteration valuation, it is charged via the same valuation table used for all City building permits (residential 50%, commercial/multi-family 100%)

Review timeline

Plan review
Not published — contact the department

How long did your Change of Use / Change of Occupancy Permit permit actually take in Green River?

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Inspection process

  1. 1

    Change-of-Occupancy Inspection

    Development Services inspection verifying the space meets applicable code requirements for the new occupancy classification before the change is approved; must be scheduled at least 24 hours in advance

See the full Green River inspection guide — scheduling & re-inspection fees →

Tips

  • Green River has no separate 'Certificate of Occupancy' application distinct from the Building Permit process -- change of occupancy is triggered and processed under IBC Section 105.1 as adopted by Sec. 7-16, the same mechanism used for new construction, additions, and alterations.
  • If you're opening a new business in an existing space, your Business License application itself is the trigger: it is reviewed by Planning & Zoning for proper zoning, and the Building Department may separately contact you if the new use represents a change in occupancy classification requiring its own inspection/permit.
  • A genuine change in USE of a property (as opposed to occupancy classification within the same use) separately requires Zoning Permit approval per Development Services' own FAQ -- budget for both tracks if your project changes both the use and the occupancy classification.

Frequently asked questions

Your Business License application is reviewed by Planning & Zoning to confirm proper zoning, and the Building Department may contact you if your new business represents a change in occupancy use of the structure, which would require a Building Permit under Section 105.1 and a Development Services inspection.

In Green River, the published Building Permit Fee -- charged under the general valuation-based Building Permit fee schedule is: No distinct 'Certificate of Occupancy' or 'change of use' flat fee is published; where the change of occupancy involves construction/alteration valuation, it is charged via the same valuation table used for all City building permits (residential 50%, commercial/multi-family 100%). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Green River does not publish a plan-review timeline for this permit. Contact City of Green River Development Services — Building Inspection Division at (307) 872-6140 for current turnaround.

You'll need: Building Permit Application (DocumentCenter Doc #5572); Business License Application. See the required-documents checklist on this page for details on each.

Green River requires 1 inspection(s) for a change of use / change of occupancy permit, in order: Change-of-Occupancy Inspection. Schedule each through City of Green River Development Services — Building Inspection Division ((307) 872-6140).

Apply through City of Green River Development Services — Building Inspection Division at 50 E 2nd North Street, Green River, WY 82935. Phone: (307) 872-6140, email: Contact via Development Services (see department website). Office hours: Monday through Friday, 8:00 a.m. to 5:00 p.m.. Official information: https://www.cityofgreenriver.org/87/Building-Inspection.

Green River, Wyoming has adopted: 2024 International Building Code (IBC), including Appendices B, I, J — adopted by City of Green River Code of Ordinances Sec. 7-16 (Ord. No. 16-02, 8-1-16; amended through Ord. No. 25-01, 1-21-25); Chapter 27 (Electrical) of the IBC is deleted by local amendment since electrical is separately governed by the local NEC adoption (Sec. 7-76); 2024 International Residential Code (IRC), including Appendices AA, BA, BE, BF, CA, CB, CD — Sec. 7-17 (Ord. No. 25-01, 1-21-25); local design criteria: Ground Snow Load 30 psf, Wind Speed 115 mph, Seismic Design Category C, Weathering Severe, Frost Line Depth 42 inches, Termite None to Slight, Winter Design Temp -20°F, Ice Shield Underlayment Required, Air Freezing Index 2282, Elevation 6,132 ft; 2024 International Plumbing Code (IPC), including all appendices — Sec. 7-31 (Ord. No. 25-01, 1-21-25), with local amendment to Section 305.4 (Freezing) restricting exterior/attic/crawlspace pipe placement; 2024 International Mechanical Code (IMC), including all appendices — Sec. 7-46 (Ord. No. 25-01, 1-21-25); 2024 International Fuel Gas Code (IFGC) — Sec. 7-91 (Ord. No. 25-01, 1-21-25); National Electrical Code (NEC), latest edition as adopted by the Wyoming State Fire Marshal's Office (2023 NEC was in effect through June 30, 2026; per wsfm.wyo.gov/electrical-safety, the 2026 NEC took effect statewide July 1, 2026) — adopted by reference for Green River under Sec. 7-76 (Ord. No. 16-02, 8-1-16; amended through Ord. No. 25-01, 1-21-25); enforced locally by the City under Home Rule, not by the state electrical program. Local amendments apply — see the Green River overview page for the full list.

Green River does not publish a standalone Certificate of Occupancy application. Changing the occupancy of a building is regulated as permit-triggering work under Section 105.1 of the adopted IBC, processed through the standard Building Permit application (DocumentCenter Doc #5572) and inspected by Development Services. A related change in the USE of a property separately triggers Zoning Permit approval. Confirm your specific situation with Development Services at (307) 872-6140.

Sources & verification

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 Green River building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Change of Use / Change of Occupancy Permit in other cities

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