Change of Use Building Permit — Unincorporated Duchesne County, Utah · Requirements sheet
Verified 2026-07-22 · Source: https://duchesne.utah.gov/wp-content/uploads/2024/07/New-Business-License-Application.pdf
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Change of Use Building Permit in Unincorporated Duchesne County, Utah
Required when a building's proposed occupancy or use classification differs from its prior use in unincorporated Duchesne County. Per the county's own Business License Application guidance: 'If the building you plan on using for the business has been used for any other purpose than what you are proposing to use it for, you may need to change the Occupancy use classification of the building or reclassify it in a different class of the same Occupancy group... To do this, you will need to obtain a change of use building permit from the Duchesne County Department of Building Safety.' Unlike the sign and fire-sprinkler/alarm gaps documented elsewhere in this record, this is a genuinely distinct, named permit type in the county's own materials, though it shares the same application and joint Building Department / Fire Marshal's Office review process as other permit types rather than having its own dedicated form.
Verified 2026-07-22 · Source
When you need this permit
- A building's proposed use or occupancy classification differs from its previously approved use, or is reclassified within a different class of the same Occupancy group, in unincorporated Duchesne County
- Floor plan and site plan (building and parking-area locations) submitted to the Department of Building Safety for joint plan review by the Building Department and the Fire Marshal's Office / Fire & Emergency Management Department
- Any building alterations required to bring the space into compliance with the code requirements for the new use (e.g., door-size changes, ADA ramp, restroom remodel, fire alarm installation) completed under the issued change-of-use permit before occupancy
- A Certificate of Occupancy issued by the county before the space may be occupied for the new use, consistent with the Certificate of Occupancy requirement documented for the Residential and Commercial Building Permits in this record
Required documents
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Fee schedule
Duchesne County Business License Application, 'Applying For A Business License – Building & Fire Codes': 'if your proposed use is similar to the previous use you may only need to install a fire alarm… Show full citationHide
Duchesne County Business License Application, 'Applying For A Business License – Building & Fire Codes': 'if your proposed use is similar to the previous use you may only need to install a fire alarm or something simple like that. This would most likely require a minimum permit fee of $55.55.'Duchesne County Business License Application: 'If you need to do more extensive alterations like increase door sizes, add an ADA ramp and remodel restrooms, then the permit fee will be based on an… Show full citationHide
Duchesne County Business License Application: 'If you need to do more extensive alterations like increase door sizes, add an ADA ramp and remodel restrooms, then the permit fee will be based on an estimated construction valuation. For major projects, the permit and associated alterations can be fairly costly.' Same generic valuation methodology documented for the Commercial Building Permit; not confirmed whether the 35%-65% Plan Review Fee and 1% State Surcharge documented for other permit types are itemized separately for change-of-use scope, or already folded into this valuation-based figure.Review timeline
Inspection process
- 1
Life-Safety / Alteration Rough-In Inspection
Confirms any required alteration work (e.g., fire alarm wiring, door/egress modifications, ADA ramp framing) prior to concealment or finish, scoped to what the joint plan review determined the new use requires.
- 2
Final Inspection / Certificate of Occupancy
Confirms the space complies with the code requirements determined for the new occupancy classification; a Certificate of Occupancy is required before the space may be occupied or used for the new use.
See the full Unincorporated Duchesne County inspection guide — scheduling & re-inspection fees →
Tips
- The permit fee for a change of use scales enormously with scope — the county's own worked example is a $55.55 minimum fee for something as simple as adding a fire alarm to a like-for-like use, versus a full valuation-based fee for major alterations like ADA ramps, restroom remodels, or door-size changes.
- Start with the Department of Building Safety, (435) 738-1150, with a floor plan and site plan in hand — the joint review with the Fire Marshal's Office / Fire & Emergency Management Department, (435) 738-1226, determines which code requirements apply to your specific new use before you know whether you're looking at the minimum fee or a valuation-based one.
- A change of use is often triggered alongside a new Business License Application — the county's Business License Zoning Clearance Form specifically asks whether the activity is 'a new use of this location' and what the previous use was, and routes the application to Planning & Zoning, the Building Department, and the Fire Department for review.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-07-22.
Fee schedules
Applications & forms
Department & other records
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 Duchesne County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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