Accessory Dwelling Unit (ADU) Permit in Logan, Utah
Required for construction of an accessory dwelling unit on a residential property in Logan. Logan has specific zoning requirements for ADUs as part of its university-area housing strategy.
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
- One additional off-street parking space required
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 (valuation-based) | Per Logan fee table by valuation | — |
| Plan Check (One/Two-Family) | 0.1% of construction valuation, $15 minimum | — |
| State Surcharge | 1% of permit fee | — |
Review timeline
~14–28 business days
Typical estimate — confirm current times with the Logan 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
- Logan's ADU regulations are shaped by its role as a university town — verify your zone allows ADUs before designing.
- Owner occupancy is enforced — you must live in either the primary dwelling or the ADU.
- Detached ADUs have stricter setback requirements than attached units.
Frequently asked questions
- Can I build an ADU on my property in Logan?
- ADUs are permitted in certain residential zones in Logan. Check with the Community Development department at (435) 716-9030 to confirm your property is eligible before applying.
- Do I need to live on the property to have an ADU in Logan?
- Yes. Logan requires that the property owner occupy either the primary dwelling or the ADU as their primary residence.
Sources & verification
Key facts verified against official sources. Last reviewed 2026-06-27.
- Logan City Building Department — official building department
- Logan Building Permit Fee Resolution 20-09
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 Logan building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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