Accessory dwelling units and junior accessory dwelling units.
AB 956
California Bills
20250AB__095696AMD INTRODUCED 2025-02-20 AMENDED_ASSEMBLY 2025-03-17 AMENDED_SENATE 2026-05-27 AMENDED_SENATE 2026-06-15 2025 AB AMD Introduced by Assembly Member Quirk-Silva (Coauthors: Assembly Members Carrillo and Wicks) LEAD_AUTHOR ASSEMBLY Quirk-Silva COAUTHOR ASSEMBLY Carrillo COAUTHOR ASSEMBLY Wicks
An act to amend Sections 714.3 and of the Civil Code, and to amend
Section of the Government Code, relating to housing. housing Accessory dwelling units and junior accessory dwelling units. Existing law, the Planning and Zoning Law, 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.
Existing law also 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 single-family residential zones in accordance with specified standards and conditions. Existing law, the Davis-Stirling Common Interest Development Act, governs the management and operation of common interest developments. Existing law defines “common interest development” for purposes of the act to include, among other things, a planned development and a condominium project.
Existing law makes void and unenforceable any covenant, restriction, or condition contained in any instrument affecting the transfer or sale of any interest in a planned development, and any provision of a governing document, that effectively prohibits or unreasonably restricts the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned for single-family residential use that meets the above-described standards and conditions for those units.
This bill would expand the provision that makes void and unenforceable any covenant, restriction, or condition contained in any instrument affecting the transfer or sale of any interest in a planned development to include any covenant, restriction, or condition contained in an instrument affecting the transfer or sale of any interest in a common interest development.
The bill would revise the provision governing prohibitions or restrictions on the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned for single-family residential use to instead apply to the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned to allow single-family residential use.
Other existing law also generally makes void and unenforceable any covenant, restriction, or condition contained in any instrument affecting the transfer or sale of any interest in real property that either effectively prohibits or unreasonably restricts the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned for single-family residential use that meets the above-described standards and conditions for those units.
This bill would similarly revise that provision to instead apply to the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned to allow single-family residential use.
Existing law requires a local agency to ministerially approve a building permit application within a residential or mixed-use zone to create certain accessory dwelling units and junior accessory dwelling units, or any combination of those units, if specified conditions are met, including , among other things, requiring the ministerial approval of 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. However, the bill would expressly state that a local agency is not required to permit detached accessory dwelling units and a junior accessory dwelling unit on the same lot. 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. MAJORITY NO YES YES NO NO NO NO NO NO NO The people of the State of California do enact as follows:
SECTION
Section 714.3 of the Civil Code is amended to read: 714.3. (
a) Any covenant, restriction, or condition contained in any deed, contract, security instrument, or other instrument affecting the transfer or sale of any interest in real property that either effectively prohibits or unreasonably restricts the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned to allow single-family residential use that meets the requirements of
Article 2 (commencing with
Section 66314) of
Chapter or
Article 3 (commencing with
Section 66333) of
Chapter of Division of Title of the Government Code is void and unenforceable. (
b) This
section does not apply to provisions that impose reasonable restrictions on accessory dwelling units or junior accessory dwelling units. For purposes of this subdivision, “reasonable restrictions” means restrictions that do not unreasonably increase the cost to construct, effectively prohibit the construction of, or extinguish the ability to otherwise construct, an accessory dwelling unit or junior accessory dwelling unit consistent with the provisions of
Article 2 (commencing with
Section 66314) or
Article 3 (commencing with
Section 66333) of
Chapter of Division of Title of the Government Code. “Reasonable restrictions” shall not include any fees or other financial requirements.
SEC. 2.
Section of the Civil Code is amended to read: 4751. (
a) Any covenant, restriction, or condition contained in any deed, contract, security instrument, or other instrument affecting the transfer or sale of any interest in a common interest development, and any provision of a governing document, that either effectively prohibits or unreasonably restricts the construction or use of an accessory dwelling unit or junior accessory dwelling unit on a lot zoned to allow single-family residential use that meets the requirements of
Article 2 (commencing with
Section 66314) or
Article 3 (commencing with
Section 66333) of
Chapter of Division of Title of the Government Code, is void and unenforceable. (
b) This
section does not apply to provisions that impose reasonable restrictions on accessory dwelling units or junior accessory dwelling units. For purposes of this subdivision, “reasonable restrictions” means restrictions that do not unreasonably increase the cost to construct, effectively prohibit the construction of, or extinguish the ability to otherwise construct, an accessory dwelling unit or junior accessory dwelling unit consistent with the provisions of
Article 2 (commencing with
Section 66314) or
Article 3 (commencing with
Section 66333) of
Chapter of Division of Title of the Government Code.
SEC. 3.
Section of the Government Code is amended to read: 66323. (
a) Notwithstanding Sections to 66322, inclusive, a local agency shall ministerially approve an application for a building permit within a residential or mixed-use zone to create any of the following units, or, except as provided in paragraph (2), any combination of the following units:
(1) One accessory dwelling unit and one junior accessory dwelling unit per lot with a proposed or existing single-family dwelling if all of the following apply: (
A) The accessory dwelling unit or junior accessory dwelling unit is within the proposed space of a single-family dwelling or existing space of a single-family dwelling or accessory structure and may include an expansion of not more than square feet beyond the same physical dimensions as the existing accessory structure. An expansion beyond the physical dimensions of the existing accessory structure shall be limited to accommodating ingress and egress. (
B) The space has exterior access from the proposed or existing single-family dwelling. (
C) The side and rear setbacks are sufficient for fire and safety. (
D) The junior accessory dwelling unit complies with the requirements of
Article 3 (commencing with
Section 66333).
(2) Two detached, new construction, accessory dwelling units that do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. A local agency is not required to permit two detached accessory dwelling units and a junior accessory dwelling unit on the same lot. A local agency may impose the following conditions on a detached accessory dwelling unit: (
A) A total floor area limitation of not more than square feet of livable space. (
B) A height limitation as provided in subparagraph (A), (B), or (
C) of paragraph (4) of subdivision (
b) of
Section 66321, as applicable. (3) (
A) Multiple accessory dwelling units within the portions of existing multifamily dwelling structures that are not used as livable space, including, but not limited to, storage rooms, boiler rooms, passageways, attics, basements, or garages, if each unit complies with state building standards for dwellings. (
B) A local agency shall allow at least one accessory dwelling unit within an existing multifamily dwelling and shall allow up to percent of the existing multifamily dwelling units. (4) (A) (
i) Multiple accessory dwelling units, not to exceed the number specified in clause (ii) or (iii), as applicable, that are located on a lot that has an existing or proposed multifamily dwelling, but are detached from that multifamily dwelling and are subject to a height limitation in subparagraph (A), (B), or (
C) of paragraph (4) of subdivision (
b) of
Section 66321, as applicable, and rear yard and side setbacks of no more than four feet. (ii) On a lot with an existing multifamily dwelling, not more than eight detached accessory dwelling units. However, the number of accessory dwelling units allowable pursuant to this clause shall not exceed the number of existing units on the lot. (iii) On a lot with a proposed multifamily dwelling, not more than two detached accessory dwelling units. (
B) If the existing multifamily dwelling has a rear or side setback of less than four feet, the local agency shall not require any modification of the existing multifamily dwelling as a condition of approving the application to construct an accessory dwelling unit that satisfies the requirements of this paragraph. (
b) A local agency shall not impose any objective development or design standard that is not authorized by this
section upon any unit that meets the requirements of any of paragraphs (1) to (4), inclusive, of subdivision (a). (
c) A local agency shall not require, as a condition for ministerial approval of a permit application for the creation of an accessory dwelling unit or a junior accessory dwelling unit, the correction of nonconforming zoning conditions. (
d) The installation of fire sprinklers shall not be required in an accessory dwelling unit or a junior accessory dwelling unit if sprinklers are not required for the primary residence. The construction of an accessory dwelling unit or a junior accessory dwelling unit shall not trigger a requirement for fire sprinklers to be installed in the existing multifamily dwelling. (
e) A local agency shall require that a rental of the accessory dwelling unit created pursuant to this
section be for a term longer than days. (
f) A local agency may require, as part of the application for a permit to create an accessory dwelling unit connected to an onsite wastewater treatment system, a percolation test completed within the last five years, or, if the percolation test has been recertified, within the last years.
SEC. 4. No reimbursement is required by this act pursuant to
Section of
Article XIII B of the California Constitution because a local agency or school district has the authority to levy service charges, fees, or assessments sufficient to pay for the program or level of service mandated by this act, within the meaning of