SF 592: Relating to county and city regulation of accessory dwelling units

What it does

This bill provides that a county or city shall allow a minimum of one accessory dwelling unit (ADU) on the same lot as a single family residence.1, limits or prohibits the construction or use of an ADU. The imposition of an ordinance, motion, resolution, or amendment regulating ADUs that is more restrictive when applied to a common interest community than when applied to a single family residence is prohibited.26.1, subsection 1, paragraph “e”, for cities; and Code chapter 562A; a requirement that the lot containing a single family residence and an ADU have additional parking beyond that required for a single family residence or payment of a fee in lieu of providing additional parking; the requirement of new or separate utility lines between the ADU and public or private utility service connections; imposition of a different county or city impact fee structure for an ADU than the one used for the single family residence on the same lot; and the requirement of improvements or repairs to public streets or sidewalks beyond those imposed on the single family residence on the same lot.

Senate subcommittee · named February 25, 2025

• Sen. Scott Webster (R) · scott.webster@legis.iowa.gov
• Sen. Dawn Driscoll (R) · dawn.driscoll@legis.iowa.gov
• Sen. Zach Wahls (D) · zach.wahls@legis.iowa.gov

Lobbying · 21 for, 0 against

For: AARP Iowa; Americans For Prosperity; Easterseals Iowa; Greater Des Moines Habitat for Humanity; Greater Iowa Apartment Association; Habitat for Humanity of Iowa; Home Builders Association of Iowa; Iowa Association of Area Agencies on Aging; Iowa Chapter, American Institute of Architects; Iowa Credit Union League; Iowa Developmental Disabilities Council; Iowa Housing Partnership; and 9 more

In plain words

1. February 25, 2025Filed in the Senate and sent to the Local Government committee · as SSB 1182
2. February 25, 2025Senate subcommittee named: Webster, Driscoll and Wahls · as SSB 1182
3. March 3, 2025Subcommittee recommended passing it with changes · as SSB 1182
4. March 6, 2025Approved by the Senate committee, and given a new number: SF 592 · as SSB 1182
5. March 10, 2025Filed in the Senate
6. March 10, 2025Approved by the Senate committee
7. March 25, 2025Passed the Senate, 49–0
8. April 8, 2025Took the place of HF 947 on the House floor (the same legislation)
9. April 8, 2025Passed the House, 89–7
10. May 1, 2025Sent to the Governor
11. May 1, 2025Signed into law