

ADU rules for New Lenox
Accessory Dwelling Unit (ADU) Rules for New Lenox, IL
Is your property eligible for an ADU?
# of Properties
12,174
Owner-occupied
78%
Zoning districts
34
Avg Home Value
$354,581
Median Lot Size
0.29 acres
Avg Income
$133,785
Residential Types:
12,174 housing units
R
100%
Zoning Districts:
13,799 parcels · 34 districts
R-2
27%(3,782)
R-2A
25%(3,420)
R-3
13%(1,854)
R-1
12%(1,677)
Other
22%(3,066)
ADU Rules
What can you build in New Lenox, IL?
New Lenox, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Parking
- –2 spaces per dwelling unit (no ADU-specific standard); exceptions: plan commission may modify/reduce/waive; zoning board may reduce spaces where sufficient existing public parking; required parking generally on the same lot unless a special location plan is approved
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 Illinois municipalities
Rules change at the town line. Check the municipality your property is actually in.
Will County