ADUs are allowed in Des PlainesTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Des Plaines, IL
Is your property eligible for an ADU?
# of Properties
21,901
Owner-occupied
70%
Zoning districts
20
Avg Home Value
$35,641
Median Lot Size
0.19 acres
Avg Income
$95,964
Residential Types:
21,901 housing units
Apts (4+ units)
1%
Other
99%
Zoning Districts:
24,220 parcels · 20 districts
R-1
61%(14,877)
R-4
17%(4,143)
R-3
10%(2,523)
C-3
3%(841)
Other
8%(1,836)
ADU Rules
What can you build in Des Plaines, IL?
Des Plaines, 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: Conditional Use Permit
Owner Occupancy
- –Childcare center proprietor must reside in the dwelling 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.
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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.
Cook County