ADUs are allowed in Oak ForestTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Oak Forest, IL
Is your property eligible for an ADU?
# of Properties
9,829
Owner-occupied
72%
Zoning districts
16
Avg Home Value
$22,922
Median Lot Size
0.19 acres
Avg Income
$101,729
Residential Types:
9,829 housing units
Apts (4+ units)
1%
Other
99%
Zoning Districts:
10,680 parcels · 16 districts
R2
54%(5,774)
R6
17%(1,803)
R3
8%(814)
R4
8%(809)
Other
14%(1,480)
ADU Rules
What can you build in Oak Forest, IL?
Oak Forest, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Max Units
- –1 ADU per lot (citywide)
Owner Occupancy
- –Owner must reside in either the main dwelling or the ADU
Parking
- –0 spaces required; no ADU-specific standards; off-street parking allowed as accessory; accessory parking lots restricted in Neighborhood Residential unless approved as a special use
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.
Cook County