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ADU rules for Belvidere

Accessory Dwelling Unit (ADU) Rules for Belvidere, IL

Is your property eligible for an ADU?

# of Parcels
8,098
Zoning districts
20
Zoning Districts:
8,111 parcels · 20 districts
SR-6
65%(5,251)
SR-4
21%(1,733)
CB
3%(215)
GB
2%(138)
Other
10%(774)

ADU Rules

What can you build in Belvidere, IL?

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

Parking

  • No ADU-specific parking; no ADU category; accessory structures cannot be used as residences; CB district parking is waived unless noted by the zoning administrator.

Rental Restrictions

  • In-family suite cannot be rented as an independent unit (including short-term rentals); must remain part of the single-family dwelling.

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.

Boone County

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