

ADUs are allowed in Western SpringsTypes:Detached
Types:Detached
Accessory Dwelling Unit (ADU) Rules for Western Springs, IL
Is your property eligible for an ADU?
# of Properties
5,120
Owner-occupied
84%
Zoning districts
13
Avg Home Value
$67,545
Median Lot Size
0.20 acres
Avg Income
$220,985
Residential Types:
5,120 housing units
Other
100%
Zoning Districts:
5,533 parcels · 13 districts
R2
66%(3,633)
R1
17%(962)
A
7%(381)
R4
5%(275)
Other
5%(282)
ADU Rules
What can you build in Western Springs, IL?
Western Springs, 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: Conditional Use Permit
Detached ADU Size Limits
- –Detached ADUs are prohibited unless approved by conditional use; otherwise the maximum allowed ADU size is 0 sq ft.
Owner Occupancy
- –No owner-occupancy requirement for ADUs
Rental Restrictions
- –Detached ADU not habitable; rental prohibited. Internal/attached ADU cannot be rented as a separate unit.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other Illinois municipalities
Rules change at the town line. Check the municipality your property is actually in.
Cook County