

ADUs are allowed in Homer GlenTypes:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Homer Glen, IL
Is your property eligible for an ADU?
# of Properties
9,865
Owner-occupied
84%
Zoning districts
24
Avg Home Value
$188,232
Median Lot Size
0.39 acres
Avg Income
$131,685
Residential Types:
9,865 housing units
R
100%
Zoning Districts:
10,439 parcels · 24 districts
R-4
27%(2,812)
R-5
24%(2,473)
R-3
12%(1,205)
R-2
11%(1,126)
Other
27%(2,823)
ADU Rules
What can you build in Homer Glen, IL?
Homer Glen, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Not permitted
Interior / Attached ADU Size Limits
- –Maximum size of 700 sq ft for an internal/attached in-home apartment.
Max Units
- –Single-family lots: 1 accessory unit per zoning lot; must be wholly within the primary structure (no detached ADU).
- –Two-family/duplex and multifamily: 0 accessory units per lot (not permitted; only in single-family dwellings).
- –R-6A district: 0 accessory housing per lot (not listed/allowed).
Owner Occupancy
- –At least one occupant must be the property's owner.
Parking
- –No ADU-specific min/max or waivers; general rule is 2 spaces/du; must park on the same lot, not in the front yard, and on an approved hard surface.
Rental Restrictions
- –Cannot rent to roomers/boarders not related to the owner
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.
Will County