

ADUs are allowed in Unincorporated HamiltonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Hamilton, IN
Is your property eligible for an ADU?
# of Properties
11,827
Owner-occupied
75%
Zoning districts
73
Avg Home Value
$392,015
Median Lot Size
0.62 acres
Avg Income
$121,909
Residential Types:
11,827 housing units
Single Family
78%
2-3 Family
2%
Condos
2%
Other
18%
Zoning Districts:
17,928 parcels · 73 districts
A-2
15%(2,694)
R2
12%(2,096)
R1
11%(2,053)
PUDR
9%(1,557)
Other
53%(9,528)
ADU Rules
What can you build in Unincorporated Hamilton, IN?
Unincorporated Hamilton, IN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: By Right
Detached ADU Size Limits
- –No codified maximum size for a detached accessory dwelling unit; approval requires a Development Standards Variance.
Parking
- –1 space/ADU; up to 25% waiver with plan and landscaped reserve; up to 25% gravel with screening; paving not required in A-2, A-3, R-1, or R-2 when 10 or fewer spaces are required; off-site parking allowed within 500 ft by special use approval.
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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Is your property eligible for an ADU?
ADU rules in other Indiana municipalities
Rules change at the town line. Check the municipality your property is actually in.
Hamilton County