SB-9
Housing & Homelessness

Accessory Dwelling Units: ordinances.

Engrossed
CA
2025-2026 Regular Session
1
0
Track

Key Takeaways

  • Invalidates local ADU ordinances that are not submitted to state housing officials within 60 days of adoption.
  • Requires local agencies to respond to state compliance findings within 30 days or void their ordinance.
  • Mandates the use of state ADU standards when local ordinances are voided until compliant rules are adopted.

Summary

Senator Arreguín's proposal to modify California's Accessory Dwelling Unit (ADU) regulations introduces automatic nullification of local ordinances that fail to meet state oversight requirements. The measure adds enforcement mechanisms to existing requirements that local agencies submit ADU ordinances to the Department of Housing and Community Development (HCD) within 60 days of adoption.

Under the proposed changes, local ADU ordinances would become void if agencies either miss the 60-day submission deadline or fail to respond within 30 days to HCD findings of non-compliance. In such cases, the local agency must then apply state-established ADU standards until adopting a compliant ordinance. The bill maintains HCD's authority to notify the Attorney General of violations, while adding consideration of whether agencies adopted compliant ordinances between January 2017 and January 2020.

The measure preserves current provisions allowing local agencies to either amend non-compliant ordinances or adopt them unchanged with explanatory findings addressing HCD's concerns. This process requires agencies to document their reasoning when choosing not to incorporate HCD's recommended changes while maintaining state oversight of local ADU regulations.

Key Dates

Next Step
Referred to the Assembly Standing Committee on Local Government
Next Step
Assembly Committee
Referred to the Assembly Standing Committee on Local Government
Hearing scheduled for , State Capitol, Room 447
Assembly Housing And Community Development Hearing
Assembly Committee
Assembly Housing And Community Development Hearing
Do pass as amended and be re-referred to the Committee on [Local Government]
Vote on Senate Floor
Senate Floor
Vote on Senate Floor
Senate 3rd Reading SB9 Arreguín
Senate Local Government Hearing
Senate Committee
Senate Local Government Hearing
Do pass as amended
Senate Housing Hearing
Senate Committee
Senate Housing Hearing
Do pass as amended, but first amend, and re-refer to the Committee on [Local Government]
Introduced
Senate Floor
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.

Contacts

Profile
Blanca RubioD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
James RamosD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Chris WardD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Lori WilsonD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Josh HooverR
Assemblymember
Committee Member
Not Contacted
Not Contacted
0 of 11 row(s) selected.
Page 1 of 3
Select All Legislators
Profile
Blanca RubioD
Assemblymember
Committee Member
Profile
James RamosD
Assemblymember
Committee Member
Profile
Chris WardD
Assemblymember
Committee Member
Profile
Lori WilsonD
Assemblymember
Committee Member
Profile
Josh HooverR
Assemblymember
Committee Member
Profile
Juan CarrilloD
Assemblymember
Committee Member
Profile
Blanca PachecoD
Assemblymember
Committee Member
Profile
Tri TaR
Assemblymember
Committee Member
Profile
Catherine StefaniD
Assemblymember
Committee Member
Profile
Jesse ArreguinD
Senator
Bill Author
Profile
Jerry McNerneyD
Senator
Bill Author

Get Involved

Act Now!

Email the authors or create an email template to send to all relevant legislators.

Introduced By

Jesse Arreguin
Jesse ArreguinD
California State Senator
Co-Author
Jerry McNerney
Jerry McNerneyD
California State Senator
40% progression
Bill has passed all readings in its first house and is ready to move to the other house (5/28/2025)

Latest Voting History

June 18, 2025
PASS
Assembly Committee
Assembly Housing And Community Development Hearing
AyesNoesNVRTotalResult
90312PASS

Key Takeaways

  • Invalidates local ADU ordinances that are not submitted to state housing officials within 60 days of adoption.
  • Requires local agencies to respond to state compliance findings within 30 days or void their ordinance.
  • Mandates the use of state ADU standards when local ordinances are voided until compliant rules are adopted.

Get Involved

Act Now!

Email the authors or create an email template to send to all relevant legislators.

Introduced By

Jesse Arreguin
Jesse ArreguinD
California State Senator
Co-Author
Jerry McNerney
Jerry McNerneyD
California State Senator

Summary

Senator Arreguín's proposal to modify California's Accessory Dwelling Unit (ADU) regulations introduces automatic nullification of local ordinances that fail to meet state oversight requirements. The measure adds enforcement mechanisms to existing requirements that local agencies submit ADU ordinances to the Department of Housing and Community Development (HCD) within 60 days of adoption.

Under the proposed changes, local ADU ordinances would become void if agencies either miss the 60-day submission deadline or fail to respond within 30 days to HCD findings of non-compliance. In such cases, the local agency must then apply state-established ADU standards until adopting a compliant ordinance. The bill maintains HCD's authority to notify the Attorney General of violations, while adding consideration of whether agencies adopted compliant ordinances between January 2017 and January 2020.

The measure preserves current provisions allowing local agencies to either amend non-compliant ordinances or adopt them unchanged with explanatory findings addressing HCD's concerns. This process requires agencies to document their reasoning when choosing not to incorporate HCD's recommended changes while maintaining state oversight of local ADU regulations.

40% progression
Bill has passed all readings in its first house and is ready to move to the other house (5/28/2025)

Key Dates

Next Step
Referred to the Assembly Standing Committee on Local Government
Next Step
Assembly Committee
Referred to the Assembly Standing Committee on Local Government
Hearing scheduled for , State Capitol, Room 447
Assembly Housing And Community Development Hearing
Assembly Committee
Assembly Housing And Community Development Hearing
Do pass as amended and be re-referred to the Committee on [Local Government]
Vote on Senate Floor
Senate Floor
Vote on Senate Floor
Senate 3rd Reading SB9 Arreguín
Senate Local Government Hearing
Senate Committee
Senate Local Government Hearing
Do pass as amended
Senate Housing Hearing
Senate Committee
Senate Housing Hearing
Do pass as amended, but first amend, and re-refer to the Committee on [Local Government]
Introduced
Senate Floor
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.

Latest Voting History

June 18, 2025
PASS
Assembly Committee
Assembly Housing And Community Development Hearing
AyesNoesNVRTotalResult
90312PASS

Contacts

Profile
Blanca RubioD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
James RamosD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Chris WardD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Lori WilsonD
Assemblymember
Committee Member
Not Contacted
Not Contacted
Profile
Josh HooverR
Assemblymember
Committee Member
Not Contacted
Not Contacted
0 of 11 row(s) selected.
Page 1 of 3
Select All Legislators
Profile
Blanca RubioD
Assemblymember
Committee Member
Profile
James RamosD
Assemblymember
Committee Member
Profile
Chris WardD
Assemblymember
Committee Member
Profile
Lori WilsonD
Assemblymember
Committee Member
Profile
Josh HooverR
Assemblymember
Committee Member
Profile
Juan CarrilloD
Assemblymember
Committee Member
Profile
Blanca PachecoD
Assemblymember
Committee Member
Profile
Tri TaR
Assemblymember
Committee Member
Profile
Catherine StefaniD
Assemblymember
Committee Member
Profile
Jesse ArreguinD
Senator
Bill Author
Profile
Jerry McNerneyD
Senator
Bill Author