Board expands accessory dwelling unit allowances in two districts, inserts building-envelope protection
Apr 16, 2025
Supervisors unanimously approved ordinances allowing accessory dwelling units (ADUs) in Supervisorial Districts 8 and 3, and accepted a drafting amendment to reinstate a provision limiting ADUs to existing building envelopes; the city attorney and sponsors said the change corrected an inadvertent deletion in prior drafting.
The full story
SAN FRANCISCO — The Board of Supervisors on July 28 unanimously approved two ordinances to allow accessory dwelling units (ADUs) within Supervisorial Districts 8 and 3. The ordinances extend earlier ADU allowances (including Castro and seismic-retrofit exceptions) to additional districts, while keeping units within existing building envelopes so the additions do not increase building mass or alter neighborhood character.
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