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.
Approved
- Type
- Code change
- Location
- Citywide
- Applicant
- Sandy Community Development
- City Council: Title 21 amendments on detached accessory dwelling units (Ordinance 26-55)
- City Council: Title 21 amendments on detached accessory dwelling units (File CA07272026-0007251), first rea…
In brief
Detached accessory dwelling unit code amendments (SB 284) appears on 2 recorded agendas, from the City Council meeting of September 1, 2026 to the City Council meeting of September 15, 2026.
On record, it was approved with conditions once.
The most recent decision was approved with conditions at the City Council meeting of September 15, 2026.
Follow the money and project delivery
Detached accessory dwelling unit code amendments (SB 284)
- Council action
Approved with conditions: Title 21 amendments on detached accessory dwelling units (Ordinance 26-55) · Approved minutes Record → · Sept. 15, 2026
- Money in the record
No itemized amount linked in the records collected.
- Signed agreement and payments
Execution and project-level disbursements are not verified by this tracker. They require separate records; meeting approval alone does not establish either.
- Work and operating costs
Check the linked records for completion and recurring operating costs; this tracker does not verify them. Record →
Every hearing and vote
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.
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.