ADU Rules in Salt Lake City, UT — 2026 Guide
Check if your Salt Lake City property qualifies for an ADU in 20 seconds
Salt Lake City ADU Rules at a Glance
Salt Lake City is considered ADU-friendly. Here are the key regulations.
- Salt Lake City allows ADUs by right in most single-family zones.
- UT SB 174 requires municipalities to allow at least internal ADUs.
- Detached ADUs up to 650 sqft or 50% of primary dwelling size permitted.
- Owner-occupancy required on either the primary home or the ADU.
What ReadyPermit Checks for Salt Lake City Properties
Enter any Salt Lake City address and get an instant ADU feasibility analysis covering:
Zoning Compliance
Verify your Salt Lake City lot is zoned for ADU construction under current UT and local rules.
Setbacks & Coverage
Check required setbacks, lot coverage limits, and height restrictions for your specific parcel.
ADU Size Limits
Calculate the maximum ADU square footage allowed based on your lot size and primary dwelling.
Permit Requirements
Understand what permits and approvals Salt Lake City requires before you can break ground.
Flood & Hazard Zones
Identify if your property falls in a flood zone, fire zone, or other hazard overlay.
Lot & Parcel Data
Pull parcel boundaries, lot dimensions, and existing structures from county records.
Check Your Salt Lake City Property Free
Enter your address below. In under 20 seconds you will know if your Salt Lake City lot qualifies for an ADU — no phone calls, no waiting.
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