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SB-1122 • 2026

Planning and zoning: annual progress report: accessory dwelling unit ordinances.

Planning and zoning: annual progress report: accessory dwelling unit ordinances.

Education Housing Land
Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor
Arreguín
Last action
2026-04-24
Official status
Set for hearing May 4.
Effective date
Not listed

Plain English Breakdown

The official source material does not provide details on specific reimbursement rules or exact costs, only that a mandate exists which may require future determination by the Commission on State Mandates.

Annual Report Requirements for Accessory Dwelling Units

This law requires cities and counties with accessory dwelling unit (ADU) ordinances to include specific details about those ordinances in their annual housing reports.

What This Bill Does

  • Requires cities and counties that have ADU ordinances to send a copy of the ordinance text as part of their yearly report.
  • Includes the location of the ordinance in city or county codes and when it was made or last changed.

Who It Names or Affects

  • Cities and counties that have accessory dwelling unit ordinances
  • The Office of Land Use and Climate Innovation, formerly known as the Office of Planning and Research
  • The Department of Housing and Community Development

Terms To Know

Accessory Dwelling Unit (ADU)
A small living space that is part of or attached to a main house, like a granny flat.
Annual Report
A yearly summary sent by cities and counties about housing developments in their area.

Limits and Unknowns

  • The bill does not specify the exact costs or workload this will impose on local governments.
  • It is unclear which specific cities and counties already have ADU ordinances.

Bill History

  1. 2026-04-24 California Legislative Information

    Set for hearing May 4.

  2. 2026-04-20 California Legislative Information

    Read second time and amended. Re-referred to Com. on APPR.

  3. 2026-04-16 California Legislative Information

    From committee: Do pass as amended and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 9. Noes 0.) (April 15).

  4. 2026-04-09 California Legislative Information

    Set for hearing April 15.

  5. 2026-04-08 California Legislative Information

    Re-referred to Com. on HOUSING.

  6. 2026-03-24 California Legislative Information

    From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS.

  7. 2026-02-26 California Legislative Information

    Referred to Com. on RLS.

  8. 2026-02-18 California Legislative Information

    From printer. May be acted upon on or after March 20.

  9. 2026-02-17 California Legislative Information

    Introduced. Read first time. To Com. on RLS. for assignment. To print.

Official Summary Text

SB 1122, as amended, Arreguín.
Planning and zoning: annual progress report: accessory dwelling unit ordinances.
Existing law, the Planning and Zoning Law, requires each county and each city to adopt a comprehensive, long-term general plan for the physical development of the county or city, and specified land outside its boundaries, that includes, among other specified mandatory elements, a housing element. That law requires the planning agency of a city or county to provide by April 1 of each year an annual report to, among other entities, the Office of Land Use and Climate Innovation, formerly known as the Office of Planning and Research, and the Department of Housing and Community Development that includes, among other specified information, the number of units of housing demolished and new units of housing that have been issued a completed entitlement, a building permit, or a certificate of occupancy, thus far in the housing element cycle, as specified.
The Planning and Zoning Law also provides for the creation by local ordinance, or by ministerial approval if a local agency has not adopted an ordinance, of accessory dwelling units in areas zoned for single-family or multifamily dwelling residential use in accordance with specified standards and conditions.
This bill would require a city or county that has an accessory dwelling unit ordinance to submit as part of their annual report
a copy of the text of that ordinance.
the code section where that ordinance is located and the date the ordinance was enacted or most recently updated.
By increasing the scope of data required to be reported in the annual report, the bill would impose a state-mandated local program.
The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement.
This bill would provide that, if the Commission on State Mandates determines that the bill contains costs mandated by the state, reimbursement for those costs shall be made pursuant to the statutory provisions noted above.

Current Bill Text

Read the full stored bill text
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