Tools · ADU Buildout
ADU Buildout
Zoning feasibility, build cost band, rent uplift, payback period for a Treasure Valley accessory dwelling unit.
Inputs
Treasure Valley jurisdiction.
200–1,200 typical.
Detached costs more; garage conversion least.
Results
Zoning
Allowed
Per Boise's 2023 Modern Zoning Code (Module 5). Permitted in most residential zones.
Build cost (mid)
$221,375
$177,100 – $281,750 range
Monthly rent
$1,365
Local $/sqft benchmark
Payback
13.5 yrs
Cost / annual rent