ADUs are allowed in Unincorporated LakeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Lake, IN
Is your property eligible for an ADU?
# of Properties
18,717
Owner-occupied
73%
Zoning districts
40
Avg Home Value
$233,990
Median Lot Size
0.47 acres
Avg Income
$102,385
Residential Types:
18,717 housing units
Single Family
79%
2-3 Family
1%
Condos
1%
Other
19%
Zoning Districts:
24,307 parcels · 40 districts
R-3
25%(6,132)
A-1
25%(5,977)
R-2
24%(5,830)
R-1
10%(2,393)
Other
16%(3,975)
ADU Rules
What can you build in Unincorporated Lake, IN?
Unincorporated Lake, 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: Special Permit
Interior / Attached ADU Size Limits
- –Maximum size of 580 sq ft for an internal/attached accessory dwelling unit
- –Maximum size of 49% of the principal dwelling’s floor area for an internal/attached accessory dwelling unit
Detached ADU Size Limits
- –Maximum size of 580 sq ft for a detached backyard cottage.
- –Maximum size of 49% of the principal dwelling unit's floor area for a detached backyard cottage.
Max Units
- –Single-family detached: 1 ADU per lot total (either 1 backyard cottage or 1 secondary suite, not both).
- –Two-unit, multi-dwelling, townhouse, and manufactured housing: 0 per lot (prohibited).
Owner Occupancy
- –Owner with at least 50% interest must occupy as permanent residence.
Parking
- –0 spaces/ADU; no new driveways or driveway expansions; tandem spaces allowed if assigned to the ADU; ADU parking follows principal-dwelling regulations
Rental Restrictions
- –One unit must be owner-occupied; renting both units simultaneously is prohibited.
- –Residential leases must be month-to-month or longer; non-owner-occupied short-term rentals (<30 days) require a special exception in A-1/R districts.
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.
Lake County