

ADUs are allowed in Unincorporated JasperTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Jasper, IN
Is your property eligible for an ADU?
# of Properties
5,945
Owner-occupied
48%
Zoning districts
37
Avg Home Value
$110,381
Median Lot Size
25.00 acres
Avg Income
$89,154
Residential Types:
5,945 housing units
Single Family
59%
Apts (4+ units)
33%
Other
8%
Zoning Districts:
15,496 parcels · 37 districts
A
46%(7,118)
A2
17%(2,672)
R1
15%(2,332)
PR
7%(1,047)
Other
15%(2,327)
ADU Rules
What can you build in Unincorporated Jasper, IN?
Unincorporated Jasper, 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 ADU size of 800 sq ft; if the primary dwelling is single-family, it may not exceed the primary’s ground-floor area.
Detached ADU Size Limits
- –Maximum ADU size of 800 sq ft
- –Maximum ADU size cannot exceed the ground-floor area of the primary dwelling
Owner Occupancy
- –Primary dwelling must be owner-occupied; ADU cannot have separate ownership.
Parking
- –0 spaces required for an ADU; primary dwelling retains 2 spaces on site and ADU must use existing driveway (no separate ADU driveway); sitewide max 120% of required spaces, admin approval for any excess
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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Learn the key rules and size limits for ADUs