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IL HB1813

IL HB1813
MUNI CD-ACCESSORY DWELLINGS


summary

Introduced
01/28/2025
In Committee
04/11/2025
Crossed Over
Passed
Dead

Introduced Session

104th General Assembly

Bill Summary

Amends the Control Over Building and Construction Article of the Illinois Municipal Code. Provides that a municipality may not prohibit the building or usage of accessory dwelling units in the municipality. Provides that a municipality may provide reasonable regulations relating to the size and location of accessory dwelling units similar to other accessory structures unless a regulation would have the effect of prohibiting accessory dwelling units. Limits home rule powers. Defines terms.

AI Summary

This bill, known as the Accessory Dwelling Unit Permissibility Act, amends the Illinois Municipal Code to establish clear guidelines for accessory dwelling units (ADUs) in municipalities. The bill defines an accessory dwelling unit as an attached or detached residential unit that provides complete independent living facilities, including provisions for living, sleeping, eating, cooking, and sanitation, and is located on the same lot as a primary residence. ADUs can include various types of housing, such as efficiency units and manufactured homes. The key provision of the bill prevents municipalities from prohibiting the construction or use of accessory dwelling units, while still allowing local governments to create reasonable regulations about the size and location of these units, as long as those regulations do not effectively prevent ADUs from being built. By limiting home rule powers, the bill aims to increase housing flexibility and potentially address housing affordability by making it easier for property owners to create additional living spaces on their existing lots.

Committee Categories

Housing and Urban Affairs

Sponsors (22)

Last Action

Added Co-Sponsor Rep. Kimberly Du Buclet (on 01/08/2026)

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