California 2025 2025-2026 Regular Session

California Assembly Bill AB956 Amended / Bill

Filed 03/17/2025

                    Amended IN  Assembly  March 17, 2025 CALIFORNIA LEGISLATURE 20252026 REGULAR SESSION Assembly Bill No. 956Introduced by Assembly Member Quirk-SilvaFebruary 20, 2025 An act to amend Section 50515.05 of the Health and Safety 66323 of the Government Code, relating to housing.LEGISLATIVE COUNSEL'S DIGESTAB 956, as amended, Quirk-Silva. Regional housing need allocation process. Accessory dwelling units: ministerial approval: single-family dwellings.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.Existing law establishes the intent of the Legislature to revamp the existing regional housing need allocation process to accomplish specified objectives, including creating a fair, transparent, and objective process for identifying housing needs across the state. Existing law requires the Department of Housing and Community Development, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, to develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.This bill would make nonsubstantive changes to those provisions.Digest Key Vote: MAJORITY  Appropriation: NO  Fiscal Committee: NOYES  Local Program: NOYES Bill TextThe people of the State of California do enact as follows:SECTION 1. Section 66323 of the Government Code is amended to read:66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.SEC. 2. No reimbursement is required by this act pursuant to Section 6 of Article XIIIB 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 Section 17556 of the Government Code.SECTION 1.Section 50515.05 of the Health and Safety Code is amended to read:50515.05.(a)It is the intent of the Legislature to revamp the existing regional housing need allocation process described in Sections 65584 to 65584.2, inclusive, of the Government Code in order to accomplish the following objectives:(1)Create a fair, transparent, and objective process for identifying housing needs across the state.(2)Strategically plan for housing growth according to statewide priorities, consistent with Section 65041.1 of the Government Code, and expected future need for housing at all income levels.(3)Encourage increased development to address the states housing affordability issues.(4)Improve compliance and outcomes through incentives and enforcement.(b)(1)On or before December 31, 2023, the department, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, shall develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.(2)In developing the recommendations required by this subdivision, the department may appoint a third-party consultant to facilitate a comprehensive review of the current regional housing need allocation process and methodology.(c)The department shall keep the Legislature apprised of its progress in implementing this section, including providing an update to the Legislature no later than July 1, 2023. Upon completion of the process described in subdivision (b), the department shall submit a report of its findings and recommendations to the Legislature. The report required to be submitted pursuant to this subdivision shall be submitted in compliance with Section 9795 of the Government Code.

 Amended IN  Assembly  March 17, 2025 CALIFORNIA LEGISLATURE 20252026 REGULAR SESSION Assembly Bill No. 956Introduced by Assembly Member Quirk-SilvaFebruary 20, 2025 An act to amend Section 50515.05 of the Health and Safety 66323 of the Government Code, relating to housing.LEGISLATIVE COUNSEL'S DIGESTAB 956, as amended, Quirk-Silva. Regional housing need allocation process. Accessory dwelling units: ministerial approval: single-family dwellings.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.Existing law establishes the intent of the Legislature to revamp the existing regional housing need allocation process to accomplish specified objectives, including creating a fair, transparent, and objective process for identifying housing needs across the state. Existing law requires the Department of Housing and Community Development, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, to develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.This bill would make nonsubstantive changes to those provisions.Digest Key Vote: MAJORITY  Appropriation: NO  Fiscal Committee: NOYES  Local Program: NOYES 

 Amended IN  Assembly  March 17, 2025

Amended IN  Assembly  March 17, 2025

 CALIFORNIA LEGISLATURE 20252026 REGULAR SESSION

 Assembly Bill 

No. 956

Introduced by Assembly Member Quirk-SilvaFebruary 20, 2025

Introduced by Assembly Member Quirk-Silva
February 20, 2025

 An act to amend Section 50515.05 of the Health and Safety 66323 of the Government Code, relating to housing.

LEGISLATIVE COUNSEL'S DIGEST

## LEGISLATIVE COUNSEL'S DIGEST

AB 956, as amended, Quirk-Silva. Regional housing need allocation process. Accessory dwelling units: ministerial approval: single-family dwellings.

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.Existing law establishes the intent of the Legislature to revamp the existing regional housing need allocation process to accomplish specified objectives, including creating a fair, transparent, and objective process for identifying housing needs across the state. Existing law requires the Department of Housing and Community Development, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, to develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.This bill would make nonsubstantive changes to those provisions.

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.

Existing law establishes the intent of the Legislature to revamp the existing regional housing need allocation process to accomplish specified objectives, including creating a fair, transparent, and objective process for identifying housing needs across the state. Existing law requires the Department of Housing and Community Development, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, to develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.



This bill would make nonsubstantive changes to those provisions.



## Digest Key

## Bill Text

The people of the State of California do enact as follows:SECTION 1. Section 66323 of the Government Code is amended to read:66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.SEC. 2. No reimbursement is required by this act pursuant to Section 6 of Article XIIIB 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 Section 17556 of the Government Code.SECTION 1.Section 50515.05 of the Health and Safety Code is amended to read:50515.05.(a)It is the intent of the Legislature to revamp the existing regional housing need allocation process described in Sections 65584 to 65584.2, inclusive, of the Government Code in order to accomplish the following objectives:(1)Create a fair, transparent, and objective process for identifying housing needs across the state.(2)Strategically plan for housing growth according to statewide priorities, consistent with Section 65041.1 of the Government Code, and expected future need for housing at all income levels.(3)Encourage increased development to address the states housing affordability issues.(4)Improve compliance and outcomes through incentives and enforcement.(b)(1)On or before December 31, 2023, the department, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, shall develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.(2)In developing the recommendations required by this subdivision, the department may appoint a third-party consultant to facilitate a comprehensive review of the current regional housing need allocation process and methodology.(c)The department shall keep the Legislature apprised of its progress in implementing this section, including providing an update to the Legislature no later than July 1, 2023. Upon completion of the process described in subdivision (b), the department shall submit a report of its findings and recommendations to the Legislature. The report required to be submitted pursuant to this subdivision shall be submitted in compliance with Section 9795 of the Government Code.

The people of the State of California do enact as follows:

## The people of the State of California do enact as follows:

SECTION 1. Section 66323 of the Government Code is amended to read:66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.

SECTION 1. Section 66323 of the Government Code is amended to read:

### SECTION 1.

66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.

66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.

66323. (a) Notwithstanding Sections 66314 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:(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:(A) A total floor area limitation of not more than 800 square feet.(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.



66323. (a) Notwithstanding Sections 66314 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:

(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 150 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) One Two detached, new construction, accessory dwelling unit units that does do not exceed four-foot side and rear yard setbacks for a lot with a proposed or existing single-family dwelling. The accessory dwelling unit may be combined with a junior accessory dwelling unit described in paragraph (1). A local agency may impose the following conditions on the accessory dwelling unit:

(A) A total floor area limitation of not more than 800 square feet.

(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 25 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 accessory dwelling 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 if sprinklers are not required for the primary residence. The construction of an 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 30 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 10 years.

(g) Notwithstanding Section 66321 and subdivision (a) a local agency that has adopted an ordinance by July 1, 2018, providing for the approval of accessory dwelling units in multifamily dwelling structures shall ministerially consider a permit application to construct an accessory dwelling unit that is described in subdivision (a), and may impose objective standards including, but not limited to, design, development, and historic standards on said accessory dwelling units. These standards shall not include requirements on minimum lot size.

SEC. 2. No reimbursement is required by this act pursuant to Section 6 of Article XIIIB 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 Section 17556 of the Government Code.

SEC. 2. No reimbursement is required by this act pursuant to Section 6 of Article XIIIB 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 Section 17556 of the Government Code.

SEC. 2. No reimbursement is required by this act pursuant to Section 6 of Article XIIIB 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 Section 17556 of the Government Code.

### SEC. 2.





(a)It is the intent of the Legislature to revamp the existing regional housing need allocation process described in Sections 65584 to 65584.2, inclusive, of the Government Code in order to accomplish the following objectives:



(1)Create a fair, transparent, and objective process for identifying housing needs across the state.



(2)Strategically plan for housing growth according to statewide priorities, consistent with Section 65041.1 of the Government Code, and expected future need for housing at all income levels.



(3)Encourage increased development to address the states housing affordability issues.



(4)Improve compliance and outcomes through incentives and enforcement.



(b)(1)On or before December 31, 2023, the department, in collaboration with the Office of Land Use and Climate Innovation and after engaging in stakeholder participation, shall develop a recommended improved regional housing need allocation process and methodology that promotes and streamlines housing development and substantially addresses Californias housing shortage.



(2)In developing the recommendations required by this subdivision, the department may appoint a third-party consultant to facilitate a comprehensive review of the current regional housing need allocation process and methodology.



(c)The department shall keep the Legislature apprised of its progress in implementing this section, including providing an update to the Legislature no later than July 1, 2023. Upon completion of the process described in subdivision (b), the department shall submit a report of its findings and recommendations to the Legislature. The report required to be submitted pursuant to this subdivision shall be submitted in compliance with Section 9795 of the Government Code.