

ADUs are allowed in Crest HillTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Crest Hill, IL
Is your property eligible for an ADU?
# of Properties
9,047
Owner-occupied
56%
Zoning districts
18
Avg Home Value
$212,636
Median Lot Size
0.20 acres
Avg Income
$77,867
Residential Types:
9,047 housing units
R
100%
Zoning Districts:
10,338 parcels · 18 districts
R-3
44%(4,591)
R-1
32%(3,269)
B-2
8%(787)
R-2
5%(500)
Other
12%(1,191)
ADU Rules
What can you build in Crest Hill, IL?
Crest Hill, 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: Not permitted
Max Units
- –0 detached ADU per lot (prohibited)
Rental Restrictions
- –Detached ADU cannot be established or rented as a dwelling.
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.
Will County