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SB4071 - 104th General Assembly
MUNI CD-ACCESSORY DWELLINGS
Last Action
Senate Sponsors
Sen. Robert F. Martwick - David Koehler - Mattie Hunter - Adriane Johnson - Javier L. Cervantes, Mark L. Walker, Sara Feigenholtz, Robert Peters and Steve StadelmanStatutes 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
| Date | Chamber | Action |
|---|---|---|
| 2/24/2026 | Senate | Filed with Secretary by Sen. Robert F. Martwick |
| 2/24/2026 | Senate | First Reading |
| 2/24/2026 | Senate | Referred to Assignments |
| 3/05/2026 | Senate | Added as Chief Co-Sponsor Sen. David Koehler |
| 3/05/2026 | Senate | Added as Co-Sponsor Sen. Mark L. Walker |
| 3/05/2026 | Senate | Added as Co-Sponsor Sen. Sara Feigenholtz |
| 3/06/2026 | Senate | Added as Chief Co-Sponsor Sen. Mattie Hunter |
| 3/06/2026 | Senate | Added as Chief Co-Sponsor Sen. Adriane Johnson |
| 3/06/2026 | Senate | Added as Chief Co-Sponsor Sen. Javier L. Cervantes |
| 3/10/2026 | Senate | Added as Co-Sponsor Sen. Robert Peters |
| 3/13/2026 | Senate | Added as Co-Sponsor Sen. Steve Stadelman |