Is there a separate commercial permit fee schedule in Natrona County?

No. Natrona County uses a single combined, valuation-based fee table (Resolution No. 45-20) for both residential and commercial building, electrical, plumbing, and mechanical permits — the same $70-to-$905-plus-$9.24/$1,000 schedule applies to commercial tenant improvements.

Commercial Tenant Improvement Permit in Unincorporated Natrona County, Wyoming

Verified

Required for interior alterations, remodels, or repairs to existing commercial/industrial buildings in unincorporated Natrona County. Uses the same combined Building Permit Application (select Building Use: Commercial; Type of Work: Remodel or Repair), reviewed under the 2024 IBC and IEBC as adopted.

Verified 2026-07-01 · Source

$70 (valuation $0–$2,500) up to $905 plus $9.24 per additional $1,000 over $98,000Building Permit Fee — valuation-based (same table as all building permits)

When you need this permit

Same Natrona County Building Permit Application as residential work; select Building Use = Commercial and the applicable Type of Work (Remodel, Addition, Repair)
Building Type on the application should reflect Commercial/Industrial
Job valuation of the tenant improvement work must be declared for fee calculation
Reviewed under the 2024 International Building Code (IBC, Resolution 84-24) and 2024 International Existing Building Code (IEBC, Resolution 85-24) for alterations to existing structures
Separate Electrical, Plumbing, and Mechanical permits required for any trade work within the tenant space
Contractor must hold the applicable current Natrona County contractor license (General Contractor Class I/II/III depending on project scope) with active insurance

Required documents

Req
Natrona County Building Permit Application (2025)
Same combined form; mark Building Use = Commercial
Opt
Site Plan Application (2025)
May be required if the tenant improvement affects parking, access, or the building footprint

Fee schedule

Fee type	Amount	Notes
Building Permit Fee — valuation-based (same table as all building permits)	$70 (valuation $0–$2,500) up to $905 plus $9.24 per additional $1,000 over $98,000	Natrona County Permit Fees, Resolution No. 45-20 — commercial tenant improvements use the identical valuation-based schedule as residential work; no separate commercial fee table exists.
Compliance Inspection — Commercial	$300	Applies if work commenced before permit approval

Review timeline

~5–20 business days

Typical estimate — confirm current times with the Unincorporated Natrona County building department

Inspection process

1
Framing / Structural
For any structural alterations, before wall cover
2
MEP Rough-In
Electrical, plumbing, mechanical rough-in before walls closed (separate trade permits required)
3
Final
Life-safety, egress, and code compliance verified for occupancy

Tips

Natrona County uses ONE combined building permit application and ONE valuation-based fee table for both residential and commercial work — there is no separate 'commercial' fee schedule to look up.
Existing commercial buildings undergoing alteration are reviewed under the 2024 IEBC in addition to the 2024 IBC — this governs how much of the existing structure must be brought up to current code.

Frequently asked questions

Is there a separate commercial permit fee schedule in Natrona County?: No. Natrona County uses a single combined, valuation-based fee table (Resolution No. 45-20) for both residential and commercial building, electrical, plumbing, and mechanical permits — the same $70-to-$905-plus-$9.24/$1,000 schedule applies to commercial tenant improvements.

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

Other permits in Unincorporated Natrona County

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

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