ADU rules for Addison
Accessory Dwelling Unit (ADU) Rules for Addison, IL
Is your property eligible for an ADU?
# of Properties
10,139
Owner-occupied
76%
Zoning districts
28
Avg Home Value
$118,893
Median Lot Size
0.20 acres
Avg Income
$95,479
Residential Types:
10,139 housing units
Residential
100%
Zoning Districts:
11,707 parcels · 28 districts
R2
52%(6,060)
R3D
13%(1,477)
R3A
8%(967)
R4
6%(702)
Other
21%(2,501)
ADU Rules
What can you build in Addison, IL?
Addison, 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
Owner Occupancy
- –There is 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