Detached accessory dwelling unit code amendments (SB 284)
Title 21 amendments to comply with SB 284, effective Oct. 1, 2026, which requires cities to permit detached ADUs on lots of 11,000 square feet or more with a single-family dwelling. The council adopted Ordinance 26-55 on Sept. 15, 2026 by a 4-2 vote with amendments: a 1.5-story, 18-foot height limit, a 2,000 square foot cap and no transit-based parking reduction.
- Where it stands
- Approved
- Type
- Code change
- Location
- Citywide
- Applicant
- Sandy Community Development
Every hearing and vote
September 1, 2026 · City Council
Title 21 amendments on detached accessory dwelling units (File CA07272026-0007251), first reading
Discussed
Melissa Anderson, with Mike Wilcox answering questions, said the amendments respond to SB 284, effective Oct. 1, 2026, which requires permitting detached ADUs on qualifying lots of 11,000 square feet or more with a single-family dwelling. Staff recommended adopting an ordinance before Oct. 1. A lengthy discussion followed and the item will return with amendments. The council recessed 9:00 to 9:08 p.m.
September 15, 2026 · City Council
Title 21 amendments on detached accessory dwelling units (Ordinance 26-55)
Approved with conditions
Melissa Anderson presented amendments responding to SB 284, effective Oct. 1, 2026. The council adopted several amendments: a limit of 1.5 stories and 18 feet in height, a 2,000 square foot cap, removal of the transit-based parking reduction, and two internal extended living areas allowed on lots of 20,000 square feet or more. A proposal for 10,000 square foot lots failed. The ordinance as amended was adopted 4-2 per the minutes notes; the members voting no are not named, so no vote record is entered.