ADUs are allowed in West LafayetteTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for West Lafayette, IN
Is your property eligible for an ADU?
# of Properties
1,224
Owner-occupied
13%
Zoning districts
22
Avg Home Value
$2,098,206
Median Lot Size
0.24 acres
Avg Income
$47,817
Residential Types:
1,224 housing units
Single Family
5%
Apts (4+ units)
92%
Other
3%
Zoning Districts:
8,823 parcels · 22 districts
R1
44%(3,905)
PDRS
13%(1,174)
R3W
11%(937)
R1U
10%(908)
Other
22%(1,899)
ADU Rules
What can you build in West Lafayette, IN?
West Lafayette, 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 is 50% of the principal dwelling’s ground-floor area, but at least 400 sq ft is allowed when 50% would be smaller.
Detached ADU Size Limits
- –Maximum size of 750 sq ft for a detached ADU
- –Maximum of 50% of the principal dwelling’s ground-floor area; if that is under 400 sq ft, up to 400 sq ft is allowed
Max Units
- –1 ADU per lot/parcel
Owner Occupancy
- –Owner must reside on site in the principal or ADU
Parking
- –0 spaces per ADU; no additional parking required. Exceptions: no new driveways for an ADU; a variance is needed if the ADU ground-floor area would reduce the required parking for the principal dwelling; ADUs are excluded from the base 2-per-dwelling-unit parking count.
Rental Restrictions
- –Transient Guest Houses shall not be permitted in 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.
Tippecanoe County