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Commercial Building Permit / Tenant Improvement in Unincorporated Campbell County, Wyoming

Required for new commercial/industrial construction and tenant improvements in unincorporated Campbell County. This is the ONE permit type in the county that carries a real fee: a flat $250.00 charge for all new construction requiring a Commercial Building Permit, per Chapter 4 Section 1.8.A. Governed by the 2024 IBC/IMC/IPC/IFGC/IFC/IEBC.

Verified 2026-07-01 · Source

When you need this permit

  • $250 flat fee applies to all new construction requiring a Commercial Building Permit (Chapter 4 § 1.8.A)
  • Three complete sets of plans signed and sealed by a Wyoming-licensed Professional Engineer or Architect required (Commercial Building Permit Checklist)
  • Complete plan set: geotechnical report, civil plans, cover sheet with code data analysis, architectural plans, structural plans, gas plans, plumbing plans, mechanical plans, electrical plans, fire protection plans
  • Code data analysis on the title sheet must show use group classification, construction type, fire-resistant construction, design approach, height/area calcs, fire protection systems, interior finish, occupant load, means of egress, and accessibility features
  • Electrical plans for new commercial buildings/additions must be signed/sealed by a Wyoming-licensed Professional Electrical Engineer (or a Master Electrician employed by the licensed Electrical Contractor for services 400A or less, signed with WY state license number)
  • Plumbing and Mechanical plans must be signed/sealed by a Wyoming-licensed Professional Mechanical Engineer and show compliance with the 2024 IPC/IMC
  • Certified (stamped) site plans required for all multi-family, commercial, and industrial construction unless waived by the Applicable Director
  • Applications/permits expire 180 days after submittal (no extension request) or 180 days after issuance if work has stopped or not begun, unless a written extension is granted by the Building Official

Required documents

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Fee schedule

Commercial Building Permit — new constructionChapter 4 Rules Regulating Construction, Section 1.8.A (flat fee for all new construction requiring a Commercial Building Permit)
$250.00
Commercial Building Plan Review — additional re-reviews (3rd+)Chapter 4 Section 1.8.B — initial review and the first re-review of amended documents are free; each subsequent re-review is $250
$250.00 per additional re-review
Commercial Building Inspection — re-inspectionChapter 4 Section 1.8.C — the first two inspections for each portion of work are free; each additional re-inspection for incorrectly performed work is $60, payable in person before scheduling
$60.00 per re-inspection
Work commenced before obtaining required permitChapter 4 Section 1.8.D
$60.00

Review timeline

Plan reviewUnincorporated Campbell County’s published plan-review target
10–10 business days

How long did your Commercial Building Permit / Tenant Improvement 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

    Foundation/Footing

    Before concrete pour

  2. 2

    Framing/Structural

    Structural, fire-resistant construction verification

  3. 3

    MEP Rough-In

    Electrical, plumbing, mechanical, fire protection rough-in

  4. 4

    Final

    All work complete, ready for Certificate of Occupancy

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

Tips

  • Allow ten (10) business days for plan review once the application is received by the planning department, Fire Marshal, and building division (Commercial Building Permit Checklist), assuming no corrections are needed.
  • Commercial applications/permits expire after 180 days of inactivity unless a written extension is granted by the Building Official — track your submittal and construction-start dates.
  • The $250 commercial fee, $250 re-review fee, and $60 re-inspection fee are the ONLY meaningful building fees in unincorporated Campbell County — residential permits of every type are free.
  • Additional land-use approvals (conditional use permit, variance, administrative exception) or additional permits (septic, excavation, clearing/grading, street cut, demolition) may be identified as needed during the required pre-application consultation.

Frequently asked questions

Unincorporated Campbell County requires a commercial building permit / tenant improvement for: $250 flat fee applies to all new construction requiring a Commercial Building Permit (Chapter 4 § 1.8.A); Three complete sets of plans signed and sealed by a Wyoming-licensed Professional Engineer or Architect required (Commercial Building Permit Checklist); Complete plan set: geotechnical report, civil plans, cover sheet with code data analysis, architectural plans, structural plans, gas plans, plumbing plans, mechanical plans, electrical plans, fire protection plans; Code data analysis on the title sheet must show use group classification, construction type, fire-resistant construction, design approach, height/area calcs, fire protection systems, interior finish, occupant load, means of egress, and accessibility features; Electrical plans for new commercial buildings/additions must be signed/sealed by a Wyoming-licensed Professional Electrical Engineer (or a Master Electrician employed by the licensed Electrical Contractor for services 400A or less, signed with WY state license number); Plumbing and Mechanical plans must be signed/sealed by a Wyoming-licensed Professional Mechanical Engineer and show compliance with the 2024 IPC/IMC; Certified (stamped) site plans required for all multi-family, commercial, and industrial construction unless waived by the Applicable Director; Applications/permits expire 180 days after submittal (no extension request) or 180 days after issuance if work has stopped or not begun, unless a written extension is granted by the Building Official. 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.

A flat $250.00 fee applies to all new construction requiring a Commercial Building Permit (Chapter 4 Section 1.8.A). Additional re-reviews beyond the first free one cost $250 each, and re-inspections beyond the first two free ones cost $60 each.

Allow ten (10) business days for plan review once your application has been approved by the planning department, Fire Marshal, and building division, assuming no corrections are needed.

You'll need: Commercial Building Permit Checklist; Commercial Site Plan Checklist; Electrical Plan Submittal Requirements for Commercial Buildings; Plumbing & Mechanical Plan Submittal Requirements for Commercial Buildings. See the required-documents checklist on this page for details on each.

Unincorporated Campbell County requires 4 inspection(s) for a commercial building permit / tenant improvement, in order: Foundation/Footing, Framing/Structural, MEP Rough-In, Final. 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.

Sources & verification

Verified against official sources. Last reviewed 2026-07-01.

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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Commercial Building Permit / Tenant Improvement in other cities

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