SB4071 - 104th General Assembly (2025-2026)

MUNI CD-ACCESSORY DWELLINGS
Last Action
2/24/2026 - Senate: Referred to Assignments
Statutes Amended In Order of Appearance
65 ILCS 5/11-13-30 new  
Synopsis As Introduced
Amends the Illinois Municipal Code. Provides that, beginning January 1, 2027, each municipality shall, by ordinance, authorize the development of accessory dwelling units. Provides that each municipality shall permit accessory dwelling units in all zoning districts that permit single-family dwellings without additional requirements for lot size, setbacks, aesthetic requirements, design review requirements, frontage, space limitations, or other controls beyond those required for single-family dwelling units without an accessory dwelling unit. Provides that a municipality is not required to allow more than one accessory dwelling unit for any single-family dwelling. Provides that accessory dwelling units may be constructed at the same time as the principal dwelling unit. Provides that no municipality shall: (A) require additional automobile parking spaces for a property with an accessory dwelling unit beyond the requirements for a single-family dwelling unit without an accessory dwelling unit; (B) require the establishment of a familial relationship between the occupants of an accessory dwelling unit and the occupants of a principal dwelling unit; or (C) establish a minimum or maximum limit on (i) square footage of an accessory dwelling unit or (ii) the number of bedrooms of an accessory dwelling unit. Limits home rule powers.
Actions
DateChamberAction
2/24/2026SenateFiled with Secretary by Sen. Robert F. Martwick
2/24/2026SenateFirst Reading
2/24/2026SenateReferred to Assignments
3/05/2026SenateAdded as Chief Co-Sponsor Sen. David Koehler
3/05/2026SenateAdded as Co-Sponsor Sen. Mark L. Walker
3/05/2026SenateAdded as Co-Sponsor Sen. Sara Feigenholtz
3/06/2026SenateAdded as Chief Co-Sponsor Sen. Mattie Hunter
3/06/2026SenateAdded as Chief Co-Sponsor Sen. Adriane Johnson
3/06/2026SenateAdded as Chief Co-Sponsor Sen. Javier L. Cervantes
3/10/2026SenateAdded as Co-Sponsor Sen. Robert Peters
3/13/2026SenateAdded as Co-Sponsor Sen. Steve Stadelman