ADU rules for Glen Ellyn
Accessory Dwelling Unit (ADU) Rules for Glen Ellyn, IL
Is your property eligible for an ADU?
# of Properties
9,968
Owner-occupied
81%
Zoning districts
18
Avg Home Value
$195,084
Median Lot Size
0.25 acres
Avg Income
$146,748
Residential Types:
9,968 housing units
Residential
100%
Zoning Districts:
10,831 parcels · 18 districts
R2
64%(6,970)
R4
14%(1,550)
R3
6%(680)
C5B
4%(404)
Other
11%(1,227)
ADU Rules
What can you build in Glen Ellyn, IL?
Glen Ellyn, 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
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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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.
DuPage County