ADUs are allowed in West ChicagoTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for West Chicago, IL
Is your property eligible for an ADU?
# of Properties
6,169
Owner-occupied
84%
Zoning districts
19
Avg Home Value
$113,378
Median Lot Size
0.21 acres
Avg Income
$119,756
Residential Types:
6,169 housing units
Residential
100%
Zoning Districts:
7,638 parcels · 19 districts
R-5
37%(2,863)
R-3
25%(1,876)
R-6
9%(672)
R-2
7%(563)
Other
22%(1,664)
ADU Rules
What can you build in West Chicago, IL?
West Chicago, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: By Right
Detached ADU Size Limits
- –Maximum detached guest house size of 850 sq ft when located in the estate residential district on lots at least 2 acres; elsewhere detached ADUs are not permitted (0 sq ft).
Max Units
- –R-1–R-6: Detached ADUs prohibited—0 per lot.
- –Guest houses: up to 850 sq ft on lots 2 acres or more (no stated max number per lot).
- –Citywide/other ADU types (attached/internal, JADU): null specified; only one principal structure per lot.
Owner Occupancy
- –No owner-occupancy requirement 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 Illinois municipalities
Rules change at the town line. Check the municipality your property is actually in.
DuPage County