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Certificate of Occupancy / Change of Use in Gillette, Wyoming

Gillette has NO stand-alone 'Change of Use Permit' or separate 'Certificate of Occupancy' application/fee in City Code Chapter 5. A change to a building's occupancy classification is governed by the adopted International Existing Building Code (IEBC, 2021 Edition, City Code § 5-I-9), which by its own scope regulates the repair, alteration, change of occupancy, addition, and relocation of existing buildings. A Certificate of Occupancy (CO) or Temporary Certificate of Occupancy (TCO) is issued by Building Inspection as the FINAL STEP of the standard building-permit process — shown as the terminal 'TCO/CO — CERTIFICATE OF OCCUPANCY — BUILDING INSPECTION' box on the City's own Commercial Building Permit Process flow chart — not as an independently-applied-for product with its own line item in the § 5-IV fee schedule.

Verified 2026-07-22 · Source

When you need this permit

  • No dedicated 'Change of Use' or 'Certificate of Occupancy' permit type or fee line exists anywhere in City Code Chapter 5, Article IV (confirmed by a full read of the adopted fee schedule, Revised 6-16-2026)
  • A proposed change in use/occupancy classification for an existing building is evaluated by the Building Division under the adopted IEBC (2021 Edition, § 5-I-9); whether the change triggers permitted construction work depends on the specific occupancy-classification change and any life-safety/structural upgrades the IEBC requires for it
  • If the change involves only minor commercial remodel work (≤500 sq ft, no new floor area), it is typically processed under the flat $30 'Miscellaneous Commercial' fee (City Code § 5-IV-1(b)) rather than a full commercial plan review
  • If the change triggers a fuller scope of work, it follows the standard Commercial Tenant Improvement/Commercial Building Permit process (Planning Division site plan review → Building Inspection Division plan review/permit → Engineering Division ROW review if needed) — see the commercial-tenant-improvement-permit entry for that process and fee table in full
  • Fire plans for the new occupancy are routed to Campbell County Fire Department as part of the Building Inspection Division submittal, same as any other commercial building permit
  • The Commercial Building Permit Process flow chart's terminal step is 'TCO/CO Certificate of Occupancy — Building Inspection', issued after Council acceptance of utilities (if applicable) and Final Location Certificate (FLC) submittal to Planning/GIS — there is no separate CO application box on the flow chart
  • Contact the Building Division ((307) 686-5260) before opening a new tenant space or business in an existing building to confirm whether the proposed new use/occupancy classification requires permitted work and, if so, which permit type(s) apply

Required documents

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Fee schedule

Change of Use / Certificate of Occupancy — dedicated feeNo dedicated fee line exists in City Code § 5-IV. Depending on the scope of any triggered work, fees fall under the Miscellaneous Commercial fee ($30, City Code § 5-IV-1(b)) or the standard Building Square Feet / Commercial Plan Review fee tables — see the commercial-tenant-improvement-permit entry for those tables in full.
None published

Review timeline

Plan review
Not published — contact the department

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

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

Inspection process

  1. 1

    TCO/CO — Final Building Inspection

    Temporary Certificate of Occupancy or Certificate of Occupancy issued by Building Inspection as the terminal step of the Commercial Building Permit Process, after Council acceptance of utilities (if applicable) and Final Location Certificate (FLC) submittal to Planning/GIS

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

Tips

  • Don't go looking for a 'Change of Use Permit' application in Gillette's EnerGov portal — it doesn't exist as its own product. Occupancy-classification changes are handled through whichever building-permit type matches the actual construction scope, governed by the adopted IEBC.
  • Moving a new business into an existing commercial space with no construction work still may need Building Division sign-off if the new use represents a different IEBC occupancy classification than the prior tenant — call (307) 686-5260 before signing a lease to confirm.
  • The Certificate of Occupancy is the LAST step of the commercial building-permit flow chart, not a separate first step — plan on it arriving only after utilities acceptance and the Final Location Certificate submittal.

Frequently asked questions

Gillette requires a certificate of occupancy / change of use permit for: No dedicated 'Change of Use' or 'Certificate of Occupancy' permit type or fee line exists anywhere in City Code Chapter 5, Article IV (confirmed by a full read of the adopted fee schedule, Revised 6-16-2026); A proposed change in use/occupancy classification for an existing building is evaluated by the Building Division under the adopted IEBC (2021 Edition, § 5-I-9); whether the change triggers permitted construction work depends on the specific occupancy-classification change and any life-safety/structural upgrades the IEBC requires for it; If the change involves only minor commercial remodel work (≤500 sq ft, no new floor area), it is typically processed under the flat $30 'Miscellaneous Commercial' fee (City Code § 5-IV-1(b)) rather than a full commercial plan review; If the change triggers a fuller scope of work, it follows the standard Commercial Tenant Improvement/Commercial Building Permit process (Planning Division site plan review → Building Inspection Division plan review/permit → Engineering Division ROW review if needed) — see the commercial-tenant-improvement-permit entry for that process and fee table in full; Fire plans for the new occupancy are routed to Campbell County Fire Department as part of the Building Inspection Division submittal, same as any other commercial building permit; The Commercial Building Permit Process flow chart's terminal step is 'TCO/CO Certificate of Occupancy — Building Inspection', issued after Council acceptance of utilities (if applicable) and Final Location Certificate (FLC) submittal to Planning/GIS — there is no separate CO application box on the flow chart; Contact the Building Division ((307) 686-5260) before opening a new tenant space or business in an existing building to confirm whether the proposed new use/occupancy classification requires permitted work and, if so, which permit type(s) apply. If your project isn't listed, confirm with City of Gillette Development Services — Building Division at (307) 686-5260 before starting work.

In Gillette, the published Change of Use / Certificate of Occupancy — dedicated fee is: None published. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Gillette does not publish a plan-review timeline for this permit. Contact City of Gillette Development Services — Building Division at (307) 686-5260 for current turnaround.

You'll need: Whichever permit application matches the triggered scope of work (via EnerGov Self Service). See the required-documents checklist on this page for details on each.

Gillette requires 1 inspection(s) for a certificate of occupancy / change of use permit, in order: TCO/CO — Final Building Inspection. Schedule each through City of Gillette Development Services — Building Division ((307) 686-5260).

Apply through City of Gillette Development Services — Building Division at City Hall, 201 E. 5th St., 2nd Floor, Gillette, WY 82716. Phone: (307) 686-5260, email: Not published on city site — use "Send an E-mail" contact form on the Building Division page or main line gillette@gillettewy.gov. Office hours: Mon–Fri (contact department for current hours); permits/plans/licenses/inspections managed via EnerGov Self Service online portal (registration required). Official information: https://www.gillettewy.gov/Departments/Development-Services/Building-Division.

No. City Code Chapter 5 has no dedicated 'Change of Use' permit type or fee. A change in a building's occupancy classification is governed by the adopted International Existing Building Code (IEBC, § 5-I-9) and is processed through whichever standard building-permit type matches the actual scope of work triggered by the change — from the flat $30 Miscellaneous Commercial fee for a minor remodel up to a full Commercial Tenant Improvement/Commercial Building Permit submittal.

A Certificate of Occupancy (or Temporary Certificate of Occupancy) is issued by the Building Inspection Division as the final step of the standard commercial building-permit process — after utility acceptance by City Council (if applicable) and a Final Location Certificate submittal to Planning/GIS. There is no separate CO application; it results automatically from completing the applicable building-permit process.

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

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Certificate of Occupancy / Change of Use in other cities

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