ADU rules for Zion
Accessory Dwelling Unit (ADU) Rules for Zion, IL
Is your property eligible for an ADU?
# of Properties
6,377
Owner-occupied
82%
Zoning districts
34
Avg Home Value
$70,930
Median Lot Size
0.20 acres
Avg Income
$77,355
Residential Types:
6,377 housing units
Residential Improvements
100%
Zoning Districts:
8,385 parcels · 34 districts
R-5
43%(3,625)
R-8
16%(1,367)
R-10
7%(572)
R-8/PUD
6%(471)
Other
28%(2,350)
ADU Rules
What can you build in Zion, IL?
Zion, 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.
Lake County