Finding your property
Your parcel
Approx. setback line
Model footprint
Drag the round handle or tap the map to move the home. It turns red if it crosses the setback line.
Detached ADU rules
Which Summit home fits
Tap a model to place it on your lot. All three are under 650 sq ft, so state law caps required parking at 1 space.
What Utah law guarantees (Utah Code 10-21-304, effective Oct 1, 2026)
- Cities of 10,000+, and cities of 5,000+ in counties of roughly 31,000+ residents, must allow a detached ADU on any single-family lot of 11,000 sq ft or more. Cities can allow smaller lots.
- No conditional use permit for a DADU in a primarily residential zone.
- No more than 1 required on-site parking space for a DADU under 650 sq ft (2 for 650 sq ft and up).
- Cities may still set setbacks, height, size and lot coverage, require owner occupancy, keep it out of the front yard and easements, and require rentals of 90 days or longer.
Get a quote for your backyard
Download your lot report, then send us your info on the contact page. Copy your lot summary and paste it into the message box so we can quote your exact property.
Rules by city
94 Utah cities and metro townships with 5,000+ residents. Spanish Fork (6,000 sq ft lots) and Eagle Mountain (8,000 sq ft lots) are among the most lenient for backyard homes.