

ADUs are allowed in Unincorporated PorterTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Porter, IN
Is your property eligible for an ADU?
# of Properties
30,139
Owner-occupied
81%
Zoning districts
41
Avg Home Value
$325,590
Median Lot Size
0.69 acres
Avg Income
$108,982
Residential Types:
30,139 housing units
Single Family
84%
2-3 Family
1%
Apts (4+ units)
1%
Other
15%
Zoning Districts:
37,678 parcels · 41 districts
RR
29%(10,764)
R1
26%(9,887)
R2
16%(6,160)
A1
12%(4,417)
Other
17%(6,450)
ADU Rules
What can you build in Unincorporated Porter, IN?
Unincorporated Porter, IN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Special Permit
Parking
- –2 off-street spaces per ADU on the same lot; no max listed; spaces may be within garages or carports; paved surfaces required
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.
Porter County