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Change of Use / Change of Occupancy Classification Permit in Unincorporated Campbell County, Wyoming

Campbell County has no standalone 'change of use' permit product or fee schedule. Per Chapter 4 Section 1.3.A, any Owner or authorized agent who intends to 'change the Occupancy Classification of a building or structure' must apply to the Building Division for the same Building Permit used for construction, alteration, or demolition — there is no separate application, fee line, or review track specific to occupancy/use changes. The technical compliance standard for such changes is set by the adopted 2024 International Existing Building Code (IEBC), Chapter 4 Section 9, whose own Chapter 10 governs Change of Occupancy determinations; Campbell County's local amendments to IEBC Section 9 do not modify that chapter.

Verified 2026-07-22 · Source

When you need this permit

  • A Building Permit application to the Building Division is required to change the Occupancy Classification of an existing building or structure (Chapter 4 § 1.3.A)
  • Compliance is evaluated against the 2024 International Existing Building Code (IEBC), adopted by reference under Chapter 4 Section 9, which governs change-of-occupancy technical requirements
  • For zoned parcels, an approved Zoning Certificate (Chapter 7 Section 10.25) confirming the new use is allowed in the applicable zoning district is required prior to permit issuance (Chapter 4 § 1.3.C.2)
  • If the change of use also involves new construction, alteration, or triggers Commercial Building Permit thresholds, the applicable Commercial Building Permit fee ($250, Chapter 4 § 1.8.A) and full commercial submittal package apply instead of the general no-fee provision
  • A Certificate of Occupancy is issued at the conclusion of a satisfactory final inspection confirming the new occupancy classification complies with applicable code (see the residential-building-permit entry in this file — no separate CO fee is published)

Required documents

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Fee schedule

Change of Occupancy Classification — no separate flat feeNot separately itemized in Chapter 4; covered by Section 1.8.E 'All Other Permits: No fees' unless the project also requires a Commercial Building Permit, which carries the flat $250 fee under Section 1.8.A.
No fee
Zoning CertificateChapter 7 Zoning Regulations, Section 10.15(7)(a)(i)
No fee

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Campbell County building department
~1–10 business days

How long did your Change of Use / Change of Occupancy Classification Permit permit actually take in Unincorporated Campbell County?

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

Inspection process

  1. 1

    Final / Change of Occupancy Inspection

    Verifies the space complies with the applicable code (2024 IEBC/IBC/IFC as relevant) for the new Occupancy Classification before a Certificate of Occupancy is issued

See the full Unincorporated Campbell County inspection guide — scheduling & re-inspection fees →

Tips

  • There is no dedicated 'change of use permit' — apply for a standard Building Permit & Zoning Certificate Application and describe the occupancy change; Campbell County evaluates compliance against the 2024 International Existing Building Code.
  • Confirm zoning allows the new use FIRST via a no-fee Zoning Certificate (Chapter 7 Section 10.25) before investing in build-out — a use not permitted in the zoning district will not receive a Building Permit even if the building itself is code-compliant.
  • If your change of use involves new commercial construction or triggers the Commercial Building Permit threshold, budget for the $250 flat fee (Chapter 4 Section 1.8.A) rather than assuming the general residential no-fee rule applies.

Frequently asked questions

Unincorporated Campbell County requires a change of use / change of occupancy classification permit for: A Building Permit application to the Building Division is required to change the Occupancy Classification of an existing building or structure (Chapter 4 § 1.3.A); Compliance is evaluated against the 2024 International Existing Building Code (IEBC), adopted by reference under Chapter 4 Section 9, which governs change-of-occupancy technical requirements; For zoned parcels, an approved Zoning Certificate (Chapter 7 Section 10.25) confirming the new use is allowed in the applicable zoning district is required prior to permit issuance (Chapter 4 § 1.3.C.2); If the change of use also involves new construction, alteration, or triggers Commercial Building Permit thresholds, the applicable Commercial Building Permit fee ($250, Chapter 4 § 1.8.A) and full commercial submittal package apply instead of the general no-fee provision; A Certificate of Occupancy is issued at the conclusion of a satisfactory final inspection confirming the new occupancy classification complies with applicable code (see the residential-building-permit entry in this file — no separate CO fee is published). If your project isn't listed, confirm with Campbell County Department of Public Works — Building, Planning & Zoning Division at (307) 682-1970 before starting work.

No separate fee is published. It is covered by Chapter 4 Section 1.8.E ('All Other Permits: No fees') unless the scope of work requires a Commercial Building Permit, which carries a flat $250 fee under Section 1.8.A.

Plan review for a change of use / change of occupancy classification permit in Unincorporated Campbell County typically runs 1–10 business days. This is an estimate, not a published figure — confirm current review times with Campbell County Department of Public Works — Building, Planning & Zoning Division at (307) 682-1970.

You'll need: Building Permit & Zoning Certificate Application; Zoning Certificate. See the required-documents checklist on this page for details on each.

Unincorporated Campbell County requires 1 inspection(s) for a change of use / change of occupancy classification permit, in order: Final / Change of Occupancy Inspection. Schedule each through Campbell County Department of Public Works — Building, Planning & Zoning Division ((307) 682-1970).

Apply through Campbell County Department of Public Works — Building, Planning & Zoning Division at 500 S. Gillette Ave., Suite 1500, Gillette, WY 82716. Phone: (307) 682-1970, email: septic@campbellcountywy.gov (Small Wastewater System applications); planning@campbellcountywy.gov (Planning & Zoning); general Public Works (307) 685-8061. Office hours: Mon–Fri, 8:00 a.m.–5:00 p.m.. Official information: https://www.ccgov.net/286/Building-Division.

Unincorporated Campbell County, Wyoming has adopted: 2024 International Building Code (IBC) — including Appendices C and J, adopted by Campbell County Chapter 4 Rules Regulating Construction, Section 3 (Amended June 2026); 2024 International Residential Code (IRC) — including Appendices A, B, C and E, adopted Chapter 4 Section 4 (Amended June 2026); 2024 International Mechanical Code (IMC) — including Appendix A, adopted Chapter 4 Section 5; 2024 International Plumbing Code (IPC) — including Appendices A and B, adopted Chapter 4 Section 6 — NOTE: Campbell County uses the IPC, not the Uniform Plumbing Code; 2024 International Fuel Gas Code (IFGC) — all appendices, adopted Chapter 4 Section 7; 2024 International Fire Code (IFC), adopted Chapter 4 Section 8 (enforced by Campbell County Fire Department for Fire Code permits); 2024 International Existing Building Code (IEBC), adopted Chapter 4 Section 9; National Electrical Code (NFPA 70), 2026 Edition — including Informative Annex H, adopted Chapter 4 Section 10; Liquefied Petroleum Gas Code (NFPA 58), 2020 Edition, adopted Chapter 4 Section 11; Wyoming DEQ Water Quality Rules and Regulations Chapter 25 (Septic Tanks, Soil Absorption Systems, and Other Small Wastewater Systems) — adopted as Chapter 4 Appendix 1, administered by Campbell County under delegated authority from Wyoming DEQ (W.S. 35-11-304). Local amendments apply — see the Unincorporated Campbell County overview page for the full list.

No. Chapter 4 Section 1.3.A folds a change of Occupancy Classification into the same Building Permit application used for construction, alteration, or demolition. Compliance is evaluated under the 2024 International Existing Building Code, and a Certificate of Occupancy is issued at final inspection with no separate published fee.

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

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