

ADUs are allowed in Unincorporated MonroeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Monroe, IN
Is your property eligible for an ADU?
# of Properties
8,147
Owner-occupied
27%
Zoning districts
52
Avg Home Value
$183,966
Median Lot Size
6.00 acres
Avg Income
$85,673
Residential Types:
8,147 housing units
Single Family
46%
2-3 Family
1%
Apts (4+ units)
36%
Other
17%
Zoning Districts:
34,818 parcels · 52 districts
AG/RR
28%(9,739)
PUD
13%(4,521)
SR
12%(4,164)
FR
10%(3,628)
Other
37%(12,766)
ADU Rules
What can you build in Unincorporated Monroe, IN?
Unincorporated Monroe, 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
Detached ADU Size Limits
- –Maximum livable area of 1,000 sq ft for a detached accessory dwelling in FOR, AGR, and CVR districts.
- –Maximum livable area of 800 sq ft for a detached accessory dwelling in the RES district.
Max Units
- –1 ADU per lot of record
Owner Occupancy
- –Owner occupancy is required for either the main dwelling or ADU.
Parking
- –1 off-street space per ADU/DADU; ADU/DADU and the primary dwelling must share a driveway; staff may approve up to 50% reductions based on demand, transit proximity within 1,320 ft, bicycle parking, or site constraints.
Rental Restrictions
- –Short-term rentals prohibited for ADUs.
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.
Monroe County