Existing law, the Planning and Zoning Law, provided 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. Existing law requires a local agency to ministerially approve building permit applications within a residential or mixed-use zone to create, among others, one detached, new construction, accessory dwelling unit that does not exceed 4-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling, as specified.
This bill would increase the number of detached, new construction, accessory dwelling units that a local agency is required to ministerially approve on lots with a proposed or existing single-family dwelling, as described above, to 2. By imposing new duties on local governments with respect 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.

Statutes affected:
AB 956: 50515.05 HSC
02/20/25 - Introduced: 50515.05 HSC
03/17/25 - Amended Assembly: 66323 GOV, 66323 GOV, 50515.05 HSC