Utah ADU Builder
Rentals
Renting an ADU in Utah
Many homeowners build for parents or adult children first — rental income is a secondary plan. Rules vary by city.
Long-term vs short-term
ADU frameworks often assume longer stays (commonly 30+ days). Short-term rental licenses are a separate city program.
Assumption: do not underwrite a project solely on nightly rates unless your city explicitly allows that use for the unit type.
Common ADU stay
30+ days
Confirm locally
STR license
Separate
Not automatic with ADU permit
Owner-occupancy
Often required
Primary or ADU
Finance posture
Conservative
Don’t bank on rent alone
Assumption · Planning assumptions for Wasatch Front conversations — city codes and HOA rental clauses can be stricter.
Owner-occupancy
Many Utah ADU pathways expect the owner to live in the primary home or the ADU. Recorded owner-occupancy declarations are common. Confirm before you plan a fully absentee rental property.
Occupancy decision tree
If
You will live in the primary home
Then
Long-term ADU rental is the usual conversation
If
Parents will occupy the ADU
Then
Design for accessibility; treat rent as optional
If
You want both units rented
Then
Verify city + HOA allow absentee ownership
If
You hoped for Airbnb nights
Then
Check STR rules separately — often not the ADU path
Underwriting posture · educational
Payment without rent
Baseline
Payment with assumed rent
Upside only
Assumption · Prefer carrying the project without rent, then treat ADU income as upside when talking to lenders.
Plan the unit for real tenants
Separate entrance, parking logic, sound insulation, and laundry access matter as much as square footage. Browse design packages and run a cost estimate.
Tenant-ready design cues
Clear separate entrance
Privacy for both households
Parking that matches city + HOA
Avoid conflict with primary home
Sound & firewall detailing
Especially internal / garage paths
Laundry access
In-unit or clearly shared rules
Storage / trash / mail logic
Day-one friction points
Where rent often goes (homeowner view)
Cash flow
Illustrative
- Debt service / HELOC45%~45%
- Taxes · insurance · reserves20%~20%
- Utilities (if owner-paid)12%~12%
- Maintenance / vacancy13%~13%
- Net cushion10%~10%
Assumption · Hypothetical allocation to stress-test a rental thesis — not a promise of returns.
“Build the ADU so it works for family first. If the rental rules line up later, the floor plan should already feel independent.”
Try your own numbers
Model rent after the pathway is legal
We’ll contact you within 24 hours to arrange your free ADU review.