

ADU rules for Peru
Accessory Dwelling Unit (ADU) Rules for Peru, IL
Is your property eligible for an ADU?
# of Properties
38
Owner-occupied
71%
Zoning districts
14
Avg Home Value
$1,398,037
Median Lot Size
0.32 acres
Avg Income
$74,223
Residential Types:
38 housing units
2-3 Family
3%
Other
97%
Zoning Districts:
5,552 parcels · 14 districts
R-2
39%(2,186)
R-3
36%(1,997)
B-4
7%(385)
M-2
6%(330)
Other
12%(654)
ADU Rules
What can you build in Peru, IL?
Peru, 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
- –No owner-occupancy requirement applies.
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.
LaSalle County