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ADUs are allowed in Unincorporated Peoria
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Unincorporated Peoria, IL

Is your property eligible for an ADU?

# of Properties
13,807
Owner-occupied
83%
Zoning districts
23
Avg Home Value
$75,575
Median Lot Size
0.97 acres
Avg Income
$102,806
Residential Types:
13,807 housing units
Single Family
99%
Apts (4+ units)
1%
Zoning Districts:
23,376 parcels · 23 districts
R2
33%(7,745)
A2
29%(6,834)
A1
18%(4,216)
RR
8%(1,961)
Other
11%(2,620)

ADU Rules

What can you build in Unincorporated Peoria, IL?

Unincorporated Peoria, IL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • –Maximum size is the lesser of 800 sq ft or 50% of the principal dwelling’s floor area

Detached ADU Size Limits

  • –Maximum ADU size is the lesser of 50% of the principal dwelling’s floor area or 800 sq ft.

Max Units

  • –1 ADU per lot for single-family detached; 1 per lot for ADU type (attached/internal or detached). Duplex/multifamily not permitted; JADU: none specified.

Owner Occupancy

  • –Common ownership; no rental to non-family members.

Parking

  • –No ADU-specific parking minimum/maximum; ADU must share driveway with the principal dwelling and, if detached, the accessory structure must also serve as a garage; general rule limits no more than 4 cars parked outside on the lot for more than 72 hours.

Rental Restrictions

  • –The dwelling shall not be used for rental property for non-family members.

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.

Peoria County

Peoria
See all municipalities in Peoria County →See all Illinois municipalities →
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