

ADUs are allowed in Garden CityTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Garden City, ID
Is your property eligible for an ADU?
# of Properties
3,707
Owner-occupied
78%
Zoning districts
12
Avg Home Value
$516,039
Median Lot Size
0.17 acres
Avg Income
$78,121
Residential Types:
3,707 housing units
Single Family
5%
Other
95%
Zoning Districts:
5,632 parcels · 12 districts
R-2
35%(1,952)
R-3
33%(1,883)
C-2
19%(1,074)
M
8%(474)
Other
4%(249)
ADU Rules
What can you build in Garden City, ID?
Garden City, 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
Interior / Attached ADU Size Limits
- –Maximum size of 1,200 sq ft for an internal accessory dwelling unit
- –Maximum size is the greater of 800 sq ft or 50% of the principal dwelling’s floor area
Detached ADU Size Limits
- –Maximum detached ADU size is the greater of 800 sq ft or 50% of the principal dwelling size, capped at 1,200 sq ft.
Owner Occupancy
- –Owner occupancy is not required.
Parking
- –0 spaces/ADU; guest parking only if development has >2 units: 0.5 per unit for first 10, then 0.1 per unit after; otherwise no off-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