AB-1154 • 2026

Junior accessory dwelling units.

Education Housing Land

Enacted

This bill passed the Legislature and reached final enactment based on the latest official action.

Sponsor: Carrillo
Last action: 2025-10-10
Official status: Chaptered by Secretary of State - Chapter 507, Statutes of 2025.
Effective date: Not listed

Plain English Breakdown

The official source does not provide specific details on when these changes will start or how many local governments will adopt new rules for JADUs based on this law.

Junior Accessory Dwelling Units

AB-1154 modifies the requirements for junior accessory dwelling units, particularly regarding owner occupancy and rental terms.

What This Bill Does

Changes the requirement that owners must live in their main house if a JADU shares bathrooms with the main house.
Requires JADUs to be rented for more than 30 days.
Imposes new duties on local governments regarding the approval of JADUs.

Who It Names or Affects

People who want to build or rent a junior accessory dwelling unit.
Local government agencies responsible for planning and zoning.

Terms To Know

Junior Accessory Dwelling Unit (JADU): A small home built on someone's property, usually part of an existing house or garage.
Owner-occupancy: When the owner of a property lives in it themselves.

Limits and Unknowns

The bill does not specify when these changes will take effect.
It is unclear how many local governments will adopt new rules for JADUs based on this law.

Bill History

2025-10-10 California Legislative Information
Chaptered by Secretary of State - Chapter 507, Statutes of 2025.
2025-10-10 California Legislative Information
Approved by the Governor.
2025-09-09 California Legislative Information
Enrolled and presented to the Governor at 3 p.m.
2025-09-03 California Legislative Information
Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 75. Noes 0. Page 2861.).
2025-09-02 California Legislative Information
In Assembly. Concurrence in Senate amendments pending.
2025-09-02 California Legislative Information
Read third time. Passed. Ordered to the Assembly. (Ayes 40. Noes 0. Page 2394.).
2025-08-20 California Legislative Information
Read second time. Ordered to third reading.
2025-08-19 California Legislative Information
From committee: Be ordered to second reading pursuant to Senate Rule 28.8.
2025-07-09 California Legislative Information
From committee: Do pass and re-refer to Com. on APPR. (Ayes 7. Noes 0.) (July 9). Re-referred to Com. on APPR.
2025-07-03 California Legislative Information
Read second time and amended. Re-referred to Com. on L. GOV.
2025-07-02 California Legislative Information
From committee: Amend, and do pass as amended and re-refer to Com. on L. GOV. (Ayes 11. Noes 0.) (July 1).
2025-05-07 California Legislative Information
Referred to Coms. on HOUSING and L. GOV.
2025-04-29 California Legislative Information
In Senate. Read first time. To Com. on RLS. for assignment.
2025-04-28 California Legislative Information
Read third time. Passed. Ordered to the Senate. (Ayes 70. Noes 1. Page 1320.)
2025-04-24 California Legislative Information
Read second time. Ordered to third reading.
2025-04-23 California Legislative Information
From committee: Do pass. (Ayes 15. Noes 0.) (April 23).
2025-04-10 California Legislative Information
From committee: Do pass and re-refer to Com. on APPR. (Ayes 10. Noes 0.) (April 9). Re-referred to Com. on APPR.
2025-03-26 California Legislative Information
From committee: Do pass and re-refer to Com. on L. GOV. with recommendation: To Consent Calendar. (Ayes 10. Noes 0.) (March 26). Re-referred to Com. on L. GOV.
2025-03-10 California Legislative Information
Referred to Coms. on H. & C.D. and L. GOV.
2025-02-21 California Legislative Information
From printer. May be heard in committee March 23.
2025-02-20 California Legislative Information
Read first time. To print.

Official Summary Text

AB 1154, Carrillo.
Junior accessory dwelling units.
The Planning and Zoning Law, among other things, provides for the creation of
junior accessory dwelling units by local ordinance, or, if a local agency has not adopted an ordinance, by ministerial approval, in accordance with specified standards and conditions. Existing law requires an ordinance that provides for the creation of a junior accessory dwelling unit to, among other things, require owner-occupancy in the single-family residence in which the junior accessory dwelling unit is permitted.
Under this bill, that owner-occupancy requirement would apply only if the junior accessory dwelling unit has shared sanitation facilities with the existing structure. The bill would require an ordinance that provides for the creation of a junior accessory dwelling unit to require that a rental of a junior accessory dwelling unit be for a term longer than 30 days.
By imposing new duties on local governments with respect to the approval of junior 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

Read the full stored bill text

Download Bill PDF