

ADU rules for Vernon Hills
Accessory Dwelling Unit (ADU) Rules for Vernon Hills, IL
Is your property eligible for an ADU?
# of Properties
8,899
Owner-occupied
82%
Zoning districts
18
Avg Home Value
$138,833
Median Lot Size
0.22 acres
Avg Income
$142,158
Residential Types:
8,899 housing units
Residential Improvements
100%
Zoning Districts:
9,989 parcels · 18 districts
R7
36%(3,606)
R5
23%(2,302)
R4
11%(1,070)
R3A
9%(905)
Other
21%(2,106)
ADU Rules
What can you build in Vernon Hills, IL?
Vernon Hills, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: Not addressed in the local bylaw
Owner Occupancy
- –There is no owner-occupancy requirement.
Rental Restrictions
- –Short-term rentals (<12 months) prohibited; long-term rentals (12 months or more) permitted
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.
Lake County