Accessory Dwelling Unit (ADU) Permit in Spanish Fork, Utah
Required for construction of an accessory dwelling unit on a residential property in Spanish Fork. Spanish Fork adopted ADU-friendly regulations to support housing growth.
Verified 2026-06-27 · Source
When you need this permit
- Property must be in an eligible residential zone
- Owner occupancy required for either the primary or accessory unit
- ADU must meet minimum and maximum size requirements per city code
- Adequate off-street parking must be provided
Required documents
- Req
Building Plans
Construction drawings showing floor plan, elevations, and sections
- Req
Site Plan
Showing ADU placement, setbacks, parking, and access
- Req
Proof of Ownership
Deed or title showing property ownership
- Req
Energy Compliance
REScheck or equivalent energy calculation
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building Permit | Based on ICC valuation table | — |
| Plan Review | 65% of building permit fee | — |
| Impact Fees | Varies — contact city for current rates | — |
Review timeline
~14–28 business days
Typical estimate — confirm current times with the Spanish Fork 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
- Spanish Fork has been proactively updating its ADU ordinances — confirm current requirements before designing.
- Both attached and detached ADUs are allowed in certain zones — verify with Community Development.
- Impact fees for ADUs may be reduced compared to a standalone dwelling — ask the Building Department.
Frequently asked questions
- Can I build an ADU on my property in Spanish Fork?
- ADUs are permitted in certain residential zones in Spanish Fork. Contact Community Development at (801) 804-4540 to confirm your property is eligible.
- What are the size limits for an ADU in Spanish Fork?
- Spanish Fork has minimum and maximum size requirements for ADUs based on the zone and primary dwelling size. Contact the Building Department for current standards specific to your property.
Sources & verification
Key facts verified against official sources. Last reviewed 2026-06-27.
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 Spanish Fork building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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