AB-2127 • 2026

Accessory dwelling units: private sewage disposal systems.

Education Land

Passed Legislature

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

Sponsor: Johnson
Last action: 2026-06-08
Official status: From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on HOUSING.
Effective date: Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

Accessory dwelling units: private sewage disposal systems.

AB 2127, as amended, Johnson.

What This Bill Does

AB 2127, as amended, Johnson.
Accessory dwelling units: private sewage disposal systems.
Existing law, the Planning and Zoning Law, among other things, provides for the creation by ordinance, or by ministerial approval if the local agency has not adopted an ordinance, of an accessory dwelling unit in accordance with specified standards and conditions.
Existing law requires the ordinance, if adopted, to meet certain requirements, including designating areas within the jurisdiction where accessory dwelling units may be permitted.

Limits and Unknowns

This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

2026-06-08 California Legislative Information
From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on HOUSING.
2026-05-27 California Legislative Information
Referred to Coms. on HOUSING and L. GOV.
2026-05-14 California Legislative Information
In Senate. Read first time. To Com. on RLS. for assignment.
2026-05-14 California Legislative Information
Read third time. Passed. Ordered to the Senate. (Ayes 77. Noes 0. Page 5054.)
2026-05-07 California Legislative Information
Read second time. Ordered to Consent Calendar.
2026-05-06 California Legislative Information
From committee: Do pass. To Consent Calendar. (Ayes 14. Noes 0.) (May 6).
2026-04-23 California Legislative Information
From committee: Do pass and re-refer to Com. on APPR. with recommendation: To Consent Calendar. (Ayes 10. Noes 0.) (April 22). Re-referred to Com. on APPR.
2026-04-23 California Legislative Information
Coauthors revised.
2026-04-15 California Legislative Information
From committee: Do pass and re-refer to Com. on L. GOV. with recommendation: To Consent Calendar. (Ayes 12. Noes 0.) (April 15). Re-referred to Com. on L. GOV.
2026-04-07 California Legislative Information
Re-referred to Com. on H. & C.D.
2026-04-06 California Legislative Information
From committee chair, with author's amendments: Amend, and re-refer to Com. on H. & C.D. Read second time and amended.
2026-03-23 California Legislative Information
Re-referred to Com. on H. & C.D.
2026-03-19 California Legislative Information
From committee chair, with author's amendments: Amend, and re-refer to Com. on H. & C.D. Read second time and amended.
2026-03-19 California Legislative Information
Referred to Coms. on H. & C.D. and L. GOV.
2026-02-19 California Legislative Information
From printer. May be heard in committee March 21.
2026-02-18 California Legislative Information
Read first time. To print.

Official Summary Text

AB 2127, as amended, Johnson.
Accessory dwelling units: private sewage disposal systems.
Existing law, the Planning and Zoning Law, among other things, provides for the creation by ordinance, or by ministerial approval if the local agency has not adopted an ordinance, of an accessory dwelling unit in accordance with specified standards and conditions. Existing law requires the ordinance, if adopted, to meet certain requirements, including designating areas within the jurisdiction where accessory dwelling units may be permitted. Existing law authorizes the designation of areas to be based on the adequacy of water and sewer services and the impact of accessory dwelling units on traffic flow and public safety. Existing law also requires the ordinance to require approval by the local health officer where a private sewage disposal system is being used, if required.
This bill would prohibit a local agency from prohibiting an accessory
dwelling unit in an area solely because the lots are served by private sewage disposal systems. The bill would prohibit a local health officer from withholding approval based on a minimum lot size requirement if the private sewage disposal system meets certain operating requirements established by the State Water Resources Control Board
and the regional water quality control board
for that lot size,
and
as provided. The bill
would prohibit the local health officer from requiring the installation of a new or alternative system as a condition of approval if
the local health officer determines that
an existing
private sewage disposal system is verified to be functioning properly and has the capacity to serve the additional load of an accessory dwelling unit,
as provided, and
except as specified. By imposing new duties on local agencies relating to the approval of accessory dwelling units, 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 no reimbursement is required by this act for a specified reason.

Current Bill Text

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