ADUs are allowed in StarTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Star, ID
Is your property eligible for an ADU?
# of Properties
6,536
Owner-occupied
82%
Zoning districts
38
Avg Home Value
$539,769
Median Lot Size
0.20 acres
Avg Income
$98,044
Residential Types:
6,536 housing units
Single Family
1%
Other
99%
Zoning Districts:
10,673 parcels · 38 districts
R-3
31%(3,281)
R-4
19%(2,011)
R-3-DA/R-3-PUD-DA
14%(1,498)
R-4-DA
7%(759)
Other
29%(3,124)
ADU Rules
What can you build in Star, ID?
Star, ID follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Detached ADU Size Limits
- –Maximum size is 50% of the primary dwelling’s footprint, including any attached garage, for a detached ADU.
Owner Occupancy
- –Owner must reside on property >6 months/year and occupy either unit
Parking
- –1 space/ADU; conversions require on-site parking elsewhere; short-term rentals require +1 paved off-street space beyond the principal dwelling and prohibit on-street parking.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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ADU rules in other Idaho municipalities
Rules change at the town line. Check the municipality your property is actually in.
Ada County