ADUs are allowed in Park ForestTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Park Forest, IL
Is your property eligible for an ADU?
# of Properties
6,766
Owner-occupied
66%
Zoning districts
13
Avg Home Value
$175,979
Median Lot Size
0.19 acres
Avg Income
$73,989
Residential Types:
6,766 housing units
Other
100%
Zoning Districts:
7,417 parcels · 13 districts
R-1
78%(5,811)
R-3
15%(1,116)
C-2
2%(139)
R-2
1%(109)
Other
3%(242)
ADU Rules
What can you build in Park Forest, IL?
Park 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: Not permitted
Interior / Attached ADU Size Limits
- –Maximum Internal Accessory Dwelling Unit (in-home apartment) size of 800 sq ft.
- –Maximum Internal Accessory Dwelling Unit (in-home apartment) size of 40% of the principal structure’s gross floor area.
Owner Occupancy
- –Owner must reside in the principal dwelling or ADU
Parking
- –1 space/ADU; no maximum; parking on the same lot; off-premises parking not allowed for single-family dwellings; tandem parking may be approved by the Zoning Administrator via site plan review.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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