Separate Sale of ADUs under AB 1033
November 20, 2025
Housing Standing Committee
SSFMC Section 20.350.003
• Accessory Dwelling Unit:
• An attached, detached or
converted residential unit that
provides complete independent
living facilities.
• Required deed restriction:
• An ADU CANNOT be sold
separately from the primary
dwelling.
2 • Effective January 1, 2024
• Allows ADU condo conversion
and separate sale
• Local jurisdiction can “opt-in”
• Local ordinance MUST include 6
State –mandated requirements
• Additional provisions can be
incorporated
3 Support behind AB 1033
• New opportunities for
homeownership
• Increase in housing supply
• More affordable entry points in
the housing market
• Help build equity
4 “Opted-in” Jurisdictions
• San Jose
• Berkeley
• Santa Monica
• Santa Cruz
• West Hollywood
• San Francisco
• Oakland
5 • Can be charged for new ADUS
of 750 sq. ft. or larger
• Fees to be proportional in
relation to sq. ft. of primary unit
• SSF does NOT charge impact
fees for any ADUs
6 If interested in moving forward
with AB 1033
• Develop a Zoning Ordinance
amendment
• Work with 21 Elements to
develop additional provisions
7 Separate Sale of ADUs under AB 1033
City of South San Francisco
THANK YOU
FOR JOINING US TODAY