Residential Building Permit in Unincorporated Washington County, Utah
Required for new residential construction, additions, and structural alterations in Unincorporated Washington County.
Verified 2026-06-27 · Source
When you need this permit
- Project valuation over $500
- New construction or structural modification
- Changes to electrical, plumbing, or mechanical systems
Required documents
- Req
Building Plans
Complete construction drawings to scale (floor plans, elevations, sections, structural details). Most Utah jurisdictions now require a single PDF set uploaded through their online permit portal.
- Req
Site Plan
Property survey showing setbacks and footprint
- Req
Energy Compliance
REScheck or equivalent energy calculation
- Req
Engineered Truss Plans
Sealed truss layouts for new construction
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit (valuation-based) | $23.50 (up to $500); $23.50 + $3.05/each $100 over $500 (to $2,000); $69.25 + $14/each $1,000 over $2,000 (to $25,000); $391.75 + $10.10/each $1,000 over $25,000 (to $50,000); $643.75 + $7/each $1,000 over $50,000 (to $100,000); $993.75 + $5.60/each $1,000 over $100,000 (to $500,000); $3,233.75 + $4.75/each $1,000 over $500,000 (to $1,000,000); $5,608.75 + $3.65/each $1,000 over $1,000,000 | — |
| State Surcharge | 1% of building permit fee | — |
Review timeline
~10–21 business days
Typical estimate — confirm current times with the Unincorporated Washington County building department
Inspection process
- 1
Foundation
Before concrete pour — forms, rebar, anchor bolts
- 2
Framing
After framing, sheathing, and roof — before insulation
- 3
Insulation
After insulation installed, before drywall
- 4
Final
All work complete, ready for occupancy
Tips
- Submit plans digitally through the Unincorporated Washington County City portal for faster review.
- Schedule inspections at least 24 hours in advance.
- Unincorporated Washington County enforces strict setback requirements — verify with planning before design.
Frequently asked questions
- How much does a residential building permit cost in Unincorporated Washington County?
- Washington County building permit fees are valuation-based: $23.50 (up to $500), scaling to $5,608.75 + $3.65 per $1,000 over $1M. Manufactured home permits are $400. Pool permits are $300. State surcharge of 1% applies.
- How long does permit review take in Unincorporated Washington County?
- Unincorporated Washington County does not publish a fixed plan-review turnaround. Across Utah jurisdictions, residential plan review typically runs about 2-4 weeks, but times vary with project scope and department workload — confirm current timelines with the Unincorporated Washington County building department before you submit.
Sources & verification
Key facts verified against official sources. Last reviewed 2026-06-27.
- Washington County Building Department — official building department
- Washington County Community Development Fees
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 Washington County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
Other permits in Unincorporated Washington County
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