ADUs are allowed in Unincorporated JohnsonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Johnson, IN
Is your property eligible for an ADU?
# of Properties
17,898
Owner-occupied
79%
Zoning districts
40
Avg Home Value
$300,848
Median Lot Size
0.48 acres
Avg Income
$114,711
Residential Types:
17,898 housing units
Single Family
24%
Apts (4+ units)
8%
Condos
66%
Other
2%
Zoning Districts:
24,760 parcels · 40 districts
SR
52%(12,819)
AG
28%(6,915)
AR
6%(1,487)
PUD
4%(1,024)
Other
10%(2,515)
ADU Rules
What can you build in Unincorporated Johnson, IN?
Unincorporated Johnson, IN 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 1,000 sq ft
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft for a detached accessory dwelling unit.
Max Units
- –Attached ADU: 1 per primary dwelling unit; Detached ADU: 1 per parcel
Parking
- –1 space per bedroom for ADU (attached or detached); parking must be on the same lot and must use the existing driveway serving the primary dwelling; no maximum specified
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 Indiana municipalities
Rules change at the town line. Check the municipality your property is actually in.
Johnson County