Do I need a permit for an interior remodel in unincorporated Campbell County?

Yes if it involves structural, electrical, plumbing, or mechanical work — submit a Building Permit & Zoning Certificate Application marked 'Interior Remodel Only.' There is no fee for the permit.

Residential Addition / Remodel Permit in Unincorporated Campbell County, Wyoming

Verified

Required for additions, alterations, and remodels to existing one- and two-family dwellings in unincorporated Campbell County. Governed by the 2024 IRC per Chapter 4 Section 4. Same no-fee structure and exemption logic as new construction applies (the platted-subdivision Building Permit requirement, and the rural-property exemption, both govern additions/remodels the same way they govern new construction).

Verified 2026-07-01 · Source

No feeResidential Addition/Remodel Permit

When you need this permit

Building Permit & Zoning Certificate Application, marked 'Update/Expansion of Existing Structure' or 'Interior Remodel Only'
Site plan showing the existing structure(s), proposed addition footprint, and setbacks
Foundation plans and soils report if new footings are part of the addition and the property is in a platted subdivision
Electrical, mechanical, and plumbing permits as applicable for any trade work included in the remodel

Required documents

Req
Building Permit & Zoning Certificate Application
Select 'Update/Expansion of Existing Structure' or 'Interior Remodel Only' as the Application Type
Req
Site Plan
Shows existing structures, proposed addition footprint, and setback dimensions

Fee schedule

Fee type	Amount	Notes
Residential Addition/Remodel Permit	No fee	Chapter 4 Section 1.8.E 'All Other Permits: No fees.'

Review timeline

3–10 business days

Unincorporated Campbell County’s published plan-review target

Inspection process

1
Footing/Foundation (if new footings)
Before concrete pour
2
Rough-In (framing, electric, plumbing, HVAC)
Before walls closed
3
Final
All work complete per approved plans

Tips

The same Building Permit & Zoning Certificate Application form used for new construction is used for additions/remodels — just check the appropriate 'Application Type' box.
There is no fee for the building permit portion of an addition/remodel in the unincorporated county.

Frequently asked questions

Do I need a permit for an interior remodel in unincorporated Campbell County?: Yes if it involves structural, electrical, plumbing, or mechanical work — submit a Building Permit & Zoning Certificate Application marked 'Interior Remodel Only.' There is no fee for the permit.

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.

Other permits in Unincorporated Campbell County

Residential Building Permit (New Construction)Electrical Permit Plumbing Permit Mechanical / HVAC Permit Roofing Permit (Reroof)Solar PV Permit Accessory Dwelling Unit (ADU) Permit Demolition Permit Commercial Building Permit / Tenant Improvement Deck Permit

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