Currrent as of February 4, 2022

Senate Bill No. 13

CHAPTER 653

An act to amend, repeal, and add Section 65852.2 of the Government Code, and to add and repeal Section 17980.12 of the Health and Safety Code, relating to land use.

[ Approved by Governor October 09, 2019. Filed with Secretary of State October 09, 2019. ]

LEGISLATIVE COUNSEL’S DIGEST

SB 13, Wieckowski. Accessory dwelling units.

(1) The Planning and Zoning Law authorizes a local agency, by ordinance, or, if a local agency has not adopted an ordinance, by ministerial approval, to provide for the creation of accessory dwelling units in single-family and multifamily residential zones in accordance with specified standards and conditions. Existing law requires any ordinance adopted by a local agency to comply with certain criteria, including that it require accessory dwelling units to be either attached to, or located within, the proposed or existing primary dwelling or detached if located within the same lot, and that it does not exceed a specified amount of total area of floor space.

This bill would, instead, authorize the creation of accessory dwelling units in areas zoned to allow single-family or multifamily dwelling residential use. The bill would also revise the requirements for an accessory dwelling unit by providing that the accessory dwelling unit may be attached to, or located within, an attached garage, storage area, or other structure, and that it does not exceed a specified amount of total floor area.

(2) Existing law generally authorizes a local agency to include in the ordinance parking standards for accessory dwelling units, including authorizing a local agency to require the replacement of parking spaces if a garage, carport, or covered parking is demolished to construct an accessory dwelling unit. Existing law also prohibits a local agency from imposing parking standards on an accessory dwelling unit if it is located within one-half mile of public transit.

This bill would, instead, prohibit a local agency from requiring the replacement of parking spaces if a garage, carport, or covered parking is demolished to construct an accessory dwelling unit. The bill would also prohibit a local agency from imposing parking standards on an accessory dwelling unit that is located within one-half mile walking distance of public transit, and would define the term “public transit” for those purposes.

(3) Existing law authorizes a local agency to establish minimum and maximum unit size limitations on accessory dwelling units, provided that the ordinance permits an efficiency unit to be constructed in compliance with local development standards.

This bill would prohibit a local agency from establishing a minimum square footage requirement for either an attached or detached accessory dwelling unit that prohibits an efficiency unit, as defined. The bill would also prohibit a local agency from establishing a maximum square footage requirement for either an attached or detached accessory dwelling unit that is less than 850 square feet, and 1,000 square feet if the accessory dwelling unit contains more than one bedroom. The bill would also instead prohibit a local agency from establishing any other minimum or maximum size for an accessory dwelling unit, size based upon a percentage of the proposed or existing primary dwelling, or limits on lot coverage, floor area ratio, open space, and minimum lot size for either attached or detached dwelling units that prohibit at least an 800 square foot accessory dwelling unit that is at least 16 feet in height and with a 4-foot side and rear yard setbacks.

(4) Existing law prohibits a local agency from utilizing standards to evaluate a proposed accessory dwelling unit on a lot that is zoned for residential use that includes a proposed or existing single-family dwelling other than the criteria described above, except that, among one other exception, a local agency may require an applicant for a permit to be an owner-occupant of either the primary or accessory dwelling unit as a condition of issuing a permit.

This bill, until January 1, 2025, would instead prohibit a local agency from imposing an owner-occupant requirement as described above.

(5) Existing law requires a local agency that has not adopted an ordinance governing accessory dwelling units to approve or disapprove the application ministerially and without discretionary review within 120 days after receiving the application.

The bill would require a local agency, whether or not it has adopted an ordinance, to consider and approve an application, ministerially and without discretionary review, within 60 days after receiving a completed application. The bill would also provide that, if a local agency does not act on the application within that time period, the application shall be deemed approved.

(6) Existing law requires fees for an accessory dwelling unit to be determined in accordance with the Mitigation Fee Act. Existing law also requires the connection fee or capacity charge for an accessory dwelling unit requiring a new or separate utility connection to be based on either the accessory dwelling unit’s size or the number of its plumbing fixtures.

This bill would prohibit a local agency, special district, or water corporation from imposing any impact fee, as specified, upon the development of an accessory dwelling unit less than 750 square feet, and would require any impact fees to be charged for an accessory dwelling unit of 750 square feet or more to be proportional to the square footage of the primary dwelling unit. The bill would revise the basis for calculating the connection fee or capacity charge specified above to either the accessory dwelling unit’s square feet or the number of its drainage fixture unit values, as specified.

(7) Existing law, for purposes of these provisions, defines “living area” as the interior habitable area of a dwelling unit including basements and attics, but not a garage or accessory structure.

This bill would define “accessory structure” to mean a structure that is accessory and incidental to a dwelling located on the same lot.

(8) Existing law requires a local agency to submit a copy of the adopted ordinance to the Department of Housing and Community Development and authorizes the department to review and comment on the ordinance.

This bill would instead authorize the department to submit written findings to the local agency as to whether the ordinance complies with the statute authorizing the creation of an accessory dwelling unit, and, if the department finds that the local agency’s ordinance does not comply with those provisions, would require the department to notify the local agency within a reasonable time. The bill would require the local agency to consider the department’s findings and either amend its ordinance to comply with those provisions or adopt it without changes and include specified findings. If the local agency does not amend it ordinance or does not adopt those findings, the bill would require the department to notify the local agency and authorize it to notify the Attorney General that the local agency is in violation of state law, as provided. The bill would authorize the department to adopt guidelines to implement uniform standards or criteria to supplement or clarify the provisions authorizing accessory dwelling units.

(9) Existing law requires the planning agency of each city and county to adopt a general plan that includes a housing element that identifies adequate sites for housing. Existing law authorizes the department to allow a city or county to do so by a variety of methods and also authorizes the department to allow a city or county to identify sites for accessory dwelling units, as specified.

This bill would state that a local agency may count an accessory dwelling unit for purposes of identifying adequate sites for housing in accordance with those provisions.

(10) Existing law, the State Housing Law, a violation of which is a crime, establishes statewide construction and occupancy standards for buildings used for human habitation. Existing law requires, for those purposes, that any building, including any dwelling unit, be deemed to be a substandard building when a health officer determines that any one of specified listed conditions exists to the extent that it endangers the life, limb, health, property, safety, or welfare of the public or its occupants.

This bill would authorize the owner of an accessory dwelling unit built before January 1, 2020, or built on or after January 1, 2020, under specified circumstances, that receives a notice to correct violations or abate nuisances to request that the enforcement of the violation be delayed for 5 years if correcting the violation is not necessary to protect health and safety, as determined by the enforcement agency, subject to specified requirements. The bill would make conforming and other changes relating to the creation of accessory dwelling units.

By increasing the duties of local agencies with respect to land use regulations, and because the bill would expand the scope of a crime under the State Housing Law, the bill would impose a state-mandated local program.

(11) This bill would incorporate additional changes to Section 65852.2 of the Government Code proposed by AB 68 and AB 881 to be operative only if this bill and either or both AB 68 and AB 881 are enacted and this bill is enacted last.

(12) 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.

Vote: majority Appropriation: no Fiscal Committee: yes Local Program: yes

THE PEOPLE OF THE STATE OF CALIFORNIA DO ENACT AS FOLLOWS:

SECTION 1.

Section 65852.2 of the Government Code is amended to read:

65852.2.

(a) (1) A local agency may, by ordinance, provide for the creation of accessory dwelling units in areas zoned to allow single-family or multifamily dwelling residential use. The ordinance shall do all of the following:

(B) (i) Impose standards on accessory dwelling units that include, but are not limited to, parking, height, setback, lot coverage, landscape, architectural review, maximum size of a unit, and standards that prevent adverse impacts on any real property that is listed in the California Register of Historic Resources.

(ii) Notwithstanding clause (i), a local agency may reduce or eliminate parking requirements for any accessory dwelling unit located within its jurisdiction.

(C) Provide that accessory dwelling units do not exceed the allowable density for the lot upon which the accessory dwelling unit is located, and that accessory dwelling units are a residential use that is consistent with the existing general plan and zoning designation for the lot.

(D) Require the accessory dwelling units to comply with all of the following:

(i) The accessory dwelling unit may be rented separate from the primary residence, but may not be sold or otherwise conveyed separate from the primary residence.

(ii) The lot is zoned to allow single-family or multifamily dwelling residential use and includes a proposed or existing dwelling.

(iii) The accessory dwelling unit is either attached to, or located within, the proposed or existing primary dwelling, including attached garages, storage areas or similar uses, or an accessory structure or detached from the proposed or existing primary dwelling and located on the same lot as the proposed or existing primary dwelling.

(iv) The total floor area of an attached accessory dwelling unit shall not exceed 50 percent of the proposed or existing primary dwelling living area or 1,200 square feet.

(v) The total floor area for a detached accessory dwelling unit shall not exceed 1,200 square feet.

(vi) No passageway shall be required in conjunction with the construction of an accessory dwelling unit.

(vii) No setback shall be required for an existing garage that is converted to an accessory dwelling unit or to a portion of an accessory dwelling unit, and a setback of no more than five feet from the side and rear lot lines shall be required for an accessory dwelling unit that is constructed above a garage.

(viii) Local building code requirements that apply to detached dwellings, as appropriate.

(ix) Approval by the local health officer where a private sewage disposal system is being used, if required.

(x) (I) Parking requirements for accessory dwelling units shall not exceed one parking space per accessory dwelling unit or per bedroom, whichever is less. These spaces may be provided as tandem parking on a driveway.

(II) Offstreet parking shall be permitted in setback areas in locations determined by the local agency or through tandem parking, unless specific findings are made that parking in setback areas or tandem parking is not feasible based upon specific site or regional topographical or fire and life safety conditions.

(III) This clause shall not apply to an accessory dwelling unit that is described in subdivision (d).

(xi) When a garage, carport, or covered parking structure is demolished in conjunction with the construction of an accessory dwelling unit or converted to an accessory dwelling unit, the local agency shall not require that those offstreet parking spaces be replaced.

(xii) Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary residence.

(2) The ordinance shall not be considered in the application of any local ordinance, policy, or program to limit residential growth.

(3) A permit application for an accessory dwelling unit shall be considered and approved ministerially without discretionary review or a hearing, notwithstanding Section 65901 or 65906 or any local ordinance regulating the issuance of variances or special use permits. The permitting agency shall act on the application to create an accessory dwelling unit or a junior accessory dwelling unit within 60 days from the date the local agency receives a completed application. If the local agency has not acted upon the completed application within 60 days, the application shall be deemed approved. A local agency may charge a fee to reimburse it for costs incurred to implement this paragraph, including the costs of adopting or amending any ordinance that provides for the creation of an accessory dwelling unit.

(4) An existing ordinance governing the creation of an accessory dwelling unit by a local agency or an accessory dwelling ordinance adopted by a local agency shall provide an approval process that includes only ministerial provisions for the approval of accessory dwelling units and shall not include any discretionary processes, provisions, or requirements for those units, except as otherwise provided in this subdivision. In the event that a local agency has an existing accessory dwelling unit ordinance that fails to meet the requirements of this subdivision, that ordinance shall be null and void and that agency shall thereafter apply the standards established in this subdivision for the approval of accessory dwelling units, unless and until the agency adopts an ordinance that complies with this section.

(5) No other local ordinance, policy, or regulation shall be the basis for the delay or denial of a building permit or a use permit under this subdivision.

(6) This subdivision establishes the maximum standards that local agencies shall use to evaluate a proposed accessory dwelling unit on a lot that includes a proposed or existing single-family dwelling. No additional standards, other than those provided in this subdivision, shall be utilized or imposed, including any owner-occupant requirement, except that a local agency may require that the property be used for rentals of terms longer than 30 days.

(7) A local agency may amend its zoning ordinance or general plan to incorporate the policies, procedures, or other provisions applicable to the creation of an accessory dwelling unit if these provisions are consistent with the limitations of this subdivision.

(8) An accessory dwelling unit that conforms to this subdivision shall be deemed to be an accessory use or an accessory building and shall not be considered to exceed the allowable density for the lot upon which it is located, and shall be deemed to be a residential use that is consistent with the existing general plan and zoning designations for the lot. The accessory dwelling unit shall not be considered in the application of any local ordinance, policy, or program to limit residential growth.

(c) (1) Subject to paragraph (2), a local agency may establish minimum and maximum unit size requirements for both attached and detached accessory dwelling units.

(2) Notwithstanding paragraph (1), a local agency shall not establish by ordinance any of the following:

(A) A minimum square footage requirement for either an attached or detached accessory dwelling unit that prohibits an efficiency unit.

(B) A maximum square footage requirement for either an attached or detached accessory dwelling unit that is less than either of the following:

(i) 850 square feet.

(ii) 1,000 square feet for an accessory dwelling unit that provides more than one bedroom.

(C) Any other minimum or maximum size for an accessory dwelling unit, size based upon a percentage of the proposed or existing primary dwelling, or limits on lot coverage, floor area ratio, open space, and minimum lot size, for either attached or detached dwellings that does not permit at least an 800 square foot accessory dwelling unit that is at least 16 feet in height with four-foot side and rear yard setbacks to be constructed in compliance with all other local development standards.

(d) Notwithstanding any other law, a local agency, whether or not it has adopted an ordinance governing accessory dwelling units in accordance with subdivision (a), shall not impose parking standards for an accessory dwelling unit in any of the following instances:

(1) The accessory dwelling unit is located one-half mile walking distance of public transit.

(2) The accessory dwelling unit is located within an architecturally and historically significant historic district.

(3) The accessory dwelling unit is part of the proposed or existing primary residence or an accessory structure.

(4) When on-street parking permits are required but not offered to the occupant of the accessory dwelling unit.

(5) When there is a car share vehicle located within one block of the accessory dwelling unit.

(e) Notwithstanding subdivisions (a) to (d), inclusive, a local agency shall ministerially approve an application for a building permit to create one accessory dwelling unit per lot if the unit is contained within the existing space of a single-family residence or accessory structure, has independent exterior access from the existing residence, and the side and rear setbacks are sufficient for fire safety. Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary residence.

(f) (1) Fees charged for the construction of accessory dwelling units shall be determined in accordance with Chapter 5 (commencing with Section 66000) and Chapter 7 (commencing with Section 66012).

(2) An accessory dwelling unit shall not be considered by a local agency, special district, or water corporation to be a new residential use for the purposes of calculating connection fees or capacity charges for utilities, including water and sewer service.

(3) (A) A local agency, special district, or water corporation shall not impose any impact fee upon the development of an accessory dwelling unit less than 750 square feet. Any impact fees charged for an accessory dwelling unit of 750 square feet or more shall be charged proportionately in relation to the square footage of the primary dwelling unit.

(B) For purposes of this paragraph, “impact fee” has the same meaning as the term “fee” is defined in subdivision (b) of Section 66000, except that it also includes fees specified in Section 66477. “Impact fee” does not include any connection fee or capacity charge charged by a local agency, special district, or water corporation.

(4) For an accessory dwelling unit described in subdivision (e), a local agency, special district, or water corporation shall not require the applicant to install a new or separate utility connection directly between the accessory dwelling unit and the utility or impose a related connection fee or capacity charge.

(5) For an accessory dwelling unit that is not described in subdivision (e), a local agency, special district, or water corporation may require a new or separate utility connection directly between the accessory dwelling unit and the utility. Consistent with Section 66013, the connection may be subject to a connection fee or capacity charge that shall be proportionate to the burden of the proposed accessory dwelling unit, based upon either its square feet or the number of its drainage fixture unit (DFU) values, as defined in the Uniform Plumbing Code adopted and published by the International Association of Plumbing and Mechanical Officials, upon the water or sewer system. This fee or charge shall not exceed the reasonable cost of providing this service.

(g) This section does not limit the authority of local agencies to adopt less restrictive requirements for the creation of an accessory dwelling unit.

(h) (1) A local agency shall submit a copy of the ordinance adopted pursuant to subdivision (a) to the Department of Housing and Community Development within 60 days after adoption. After adoption of an ordinance, the department may submit written findings to the local agency as to whether the ordinance complies with the section.

(2) (A) If the department finds that the local agency’s ordinance does not comply with this section, the department shall notify the local agency and shall provide the local agency with a reasonable time, no longer than 30 days, to respond to the findings before taking any other action authorized by this section.

(B) The local agency shall consider findings made by the department pursuant to subparagraph (A) and shall do one of the following:

(i) Amend the ordinance to comply with this section.

(ii) Adopt the ordinance without changes. The local agency shall include findings in its resolution adopting the ordinance that explain the reasons the local agency believes that the ordinance complies with this section despite the findings of the department.

(3) (A) If the local agency does not amend its ordinance in response to the department’s findings or does not adopt a resolution with findings explaining the reason the ordinance complies with this section and addressing the department’s findings, the department shall notify the local agency and may notify the Attorney General that the local agency is in violation of state law.

(B) Before notifying the Attorney General that the local agency is in violation of state law, the department may consider whether a local agency adopted an ordinance in compliance with this section between January 1, 2017, and January 1, 2020.

(i) The department may review, adopt, amend, or repeal guidelines to implement uniform standards or criteria that supplement or clarify the terms, references, and standards set forth in this section. The guidelines adopted pursuant to this subdivision are not subject to Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2.

(j) As used in this section, the following terms mean:

(1) “Accessory dwelling unit” means an attached or a detached residential dwelling unit which provides complete independent living facilities for one or more persons. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the single-family dwelling is situated. An accessory dwelling unit also includes the following:

(A) An efficiency unit.

(B) A manufactured home, as defined in Section 18007 of the Health and Safety Code.

(2) “Accessory structure” means a structure that is accessory and incidental to a dwelling located on the same lot.

(3) “Efficiency unit” has the same meaning as defined in Section 17958.1 of the Health and Safety Code.

(4) “Living area” means the interior habitable area of a dwelling unit, including basements and attics, but does not include a garage or any accessory structure.

(5) “Local agency” means a city, county, or city and county, whether general law or chartered.

(6) “Neighborhood” has the same meaning as set forth in Section 65589.5.

(7) “Passageway” means a pathway that is unobstructed clear to the sky and extends from a street to one entrance of the accessory dwelling unit.

(8) “Public transit” means a location, including, but not limited to, a bus stop or train station, where the public may access buses, trains, subways, and other forms of transportation that charge set fares, run on fixed routes, and are available to the public.

(9) “Tandem parking” means that two or more automobiles are parked on a driveway or in any other location on a lot, lined up behind one another.

(k) Nothing in this section shall be construed to supersede or in any way alter or lessen the effect or application of the California Coastal Act of 1976 (Division 20 (commencing with Section 30000) of the Public Resources Code), except that the local government shall not be required to hold public hearings for coastal development permit applications for accessory dwelling units.

(l) A local agency may count an accessory dwelling unit for purposes of identifying adequate sites for housing, as specified in subdivision (a) of Section 65583.1, subject to authorization by the department and compliance with this division.

(m) In enforcing building standards pursuant to Article 1 (commencing with Section 17960) of Chapter 5 of Part 1.5 of Division 13 of the Health and Safety Code for an accessory dwelling unit described in paragraph (1) or (2) below, a local agency, upon request of an owner of an accessory dwelling unit for a delay in enforcement, shall delay enforcement of a building standard, subject to compliance with Section 17980.12 of the Health and Safety Code:

(1) The accessory dwelling unit was built before January 1, 2020.

(2) The accessory dwelling unit was built on or after January 1, 2020, in a local jurisdiction that, at the time the accessory dwelling unit was built, had a noncompliant accessory dwelling unit ordinance, but the ordinance is compliant at the time the request is made.

(n) This section shall remain in effect only until January 1, 2025, and as of that date is repealed.

SEC. 1.1.

Section 65852.2 of the Government Code is amended to read:

65852.2.

(B) (i) Impose standards on accessory dwelling units that include, but are not limited to, parking, height, setback, landscape, architectural review, maximum size of a unit, and standards that prevent adverse impacts on any real property that is listed in the California Register of Historic Resources. These standards shall not include requirements on minimum lot size.

(ii) Notwithstanding clause (i), a local agency may reduce or eliminate parking requirements for any accessory dwelling unit located within its jurisdiction.

(D) Require the accessory dwelling units to comply with all of the following:

(i) The accessory dwelling unit may be rented separate from the primary residence, but may not be sold or otherwise conveyed separate from the primary residence.

(ii) The lot is zoned to allow single-family or multifamily dwelling residential use and includes a proposed or existing dwelling.

(iv) If there is an existing primary dwelling, the total floor area of an attached accessory dwelling unit shall not exceed 50 percent of the existing primary dwelling.

(v) The total floor area for a detached accessory dwelling unit shall not exceed 1,200 square feet.

(vi) No passageway shall be required in conjunction with the construction of an accessory dwelling unit.

(vii) No setback shall be required for an existing living area or accessory structure or a structure constructed in the same location and to the same dimensions as an existing structure that is converted to an accessory dwelling unit or to a portion of an accessory dwelling unit, and a setback of no more than four feet from the side and rear lot lines shall be required for an accessory dwelling unit that is not converted from an existing structure or a new structure constructed in the same location and to the same dimensions as an existing structure.

(viii) Local building code requirements that apply to detached dwellings, as appropriate.

(ix) Approval by the local health officer where a private sewage disposal system is being used, if required.

(III) This clause shall not apply to an accessory dwelling unit that is described in subdivision (d).

(xii) Accessory dwelling units shall not be required to provide fire sprinklers if they are not required for the primary residence.

(2) The ordinance shall not be considered in the application of any local ordinance, policy, or program to limit residential growth.

(3) A permit application for an accessory dwelling unit or a junior accessory dwelling unit shall be considered and approved ministerially without discretionary review or a hearing, notwithstanding Section 65901 or 65906 or any local ordinance regulating the issuance of variances or special use permits. The permitting agency shall act on the application to create an accessory dwelling unit or a junior accessory dwelling unit within 60 days from the date the local agency receives a completed application if there is an existing single-family or multifamily dwelling on the lot. If the permit application to create an accessory dwelling unit or a junior accessory dwelling unit is submitted with a permit application to create a new single-family dwelling on the lot, the permitting agency may delay acting on the permit application for the accessory dwelling unit or the junior accessory dwelling unit until the permitting agency acts on the permit application to create the new single-family dwelling, but the application to create the accessory dwelling unit or junior accessory dwelling unit shall be considered without discretionary review or hearing. If the applicant requests a delay, the 60-day time period shall be tolled for the period of the delay. A local agency may charge a fee to reimburse it for costs incurred to implement this paragraph, including the costs of adopting or amending any ordinance that provides for the creation of an accessory dwelling unit.

(4) An existing ordinance governing the creation of an accessory dwelling unit by a local agency or an accessory dwelling ordinance adopted by a local agency shall provide an approval process that includes only ministerial provisions for the approval of accessory dwelling units and shall not include any discretionary processes, provisions, or requirements for those units, except as otherwise provided in this subdivision. If a local agency has an existing accessory dwelling unit ordinance that fails to meet the requirements of this subdivision, that ordinance shall be null and void and that agency shall thereafter apply the standards established in this subdivision for the approval of accessory dwelling units, unless and until the agency adopts an ordinance that complies with this section.

(5) No other local ordinance, policy, or regulation shall be the basis for the delay or denial of a building permit or a use permit under this subdivision.

(6) This subdivision establishes the maximum standards that local agencies shall use to evaluate a proposed accessory dwelling unit on a lot that includes a proposed or existing single-family dwelling. No additional standards, other than those provided in this subdivision, shall be used or imposed, including any owner-occupant requirement, except that a local agency may require that the property be used for rentals of terms longer than 30 days.

(b) When a local agency that has not adopted an ordinance governing accessory dwelling units in accordance with subdivision (a) receives an application for a permit to create an accessory dwelling unit pursuant to this subdivision, the local agency shall approve or disapprove the application ministerially without discretionary review pursuant to subdivision (a). The permitting agency shall act on the application to create an accessory dwelling unit or a junior accessory dwelling unit within 60 days from the date the local agency receives a completed application if there is an existing single-family or multifamily dwelling on the lot. If the permit application to create an accessory dwelling unit or a junior accessory dwelling unit is submitted with a permit application to create a new single-family dwelling on the lot, the permitting agency may delay acting on the permit application for the accessory dwelling unit or the junior accessory dwelling unit until the permitting agency acts on the permit application to create the new single-family dwelling, but the application to create the accessory dwelling unit or junior accessory dwelling unit shall still be considered ministerially without discretionary review or a hearing. If the applicant requests a delay, the 60-day time period shall be tolled for the period of the delay. If the local agency has not acted upon the completed application within 60 days, the application shall be deemed approved.

(c) (1) Subject to paragraph (2), a local agency may establish minimum and maximum unit size requirements for both attached and detached accessory dwelling units.

(2) Notwithstanding paragraph (1), a local agency shall not establish by ordinance any of the following:

(A) A minimum square footage requirement for either an attached or detached accessory dwelling unit that prohibits an efficiency unit.

(B) A maximum square footage requirement for either an attached or detached accessory dwelling unit that is less than either of the following:

(i) 850 square feet.

(ii) 1,000 square feet for an accessory dwelling unit that provides more than one bedroom.

(1) The accessory dwelling unit is located within one-half mile walking distance of public transit.

(2) The accessory dwelling unit is located within an architecturally and historically significant historic district.

(3) The accessory dwelling unit is part of the proposed or existing primary residence or an accessory structure.

(4) When on-street parking permits are required but not offered to the occupant of the accessory dwelling unit.

(5) When there is a car share vehicle located within one block of the accessory dwelling unit.

(e) (1) Notwithstanding subdivisions (a) to (d), 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:

(A) One accessory dwelling unit or junior accessory dwelling unit per lot with a proposed or existing single-family dwelling if all of the following apply:

(i) 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.

(ii) The space has exterior access from the proposed or existing single-family dwelling.

(iii) The side and rear setbacks are sufficient for fire and safety.

(iv) The junior accessory dwelling unit complies with the requirements of Section 65852.22.

(B) One detached, new construction, accessory dwelling unit that does 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 subparagraph (A). A local agency may impose the following conditions on the accessory dwelling unit:

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

(ii) A height limitation of 16 feet.

(C) (i) 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.

(ii) A local agency shall allow at least one accessory dwelling unit within an existing multifamily dwelling and may shall allow up to 25 percent of the existing multifamily dwelling units.

(D) Not more than two accessory dwelling units that are located on a lot that has an existing multifamily dwelling, but are detached from that multifamily dwelling and are subject to a height limit of 16 feet and four-foot rear yard and side setbacks.

(2) 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.

(3) The installation of fire sprinklers shall not be required in an accessory dwelling unit if sprinklers are not required for the primary residence.

(4) A local agency shall require that a rental of the accessory dwelling unit created pursuant to this subdivision be for a term longer than 30 days.

(5) A local agency may require, as part of the application for a permit to create an accessory dwelling unit connected to an onsite water treatment system, a percolation test completed within the last five years, or, if the percolation test has been recertified, within the last 10 years.

(6) Notwithstanding subdivision (c) and paragraph (1) 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 paragraph (1), and may impose 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.

(f) (1) Fees charged for the construction of accessory dwelling units shall be determined in accordance with Chapter 5 (commencing with Section 66000) and Chapter 7 (commencing with Section 66012).

(2) An accessory dwelling unit shall not be considered by a local agency, special district, or water corporation to be a new residential use for purposes of calculating connection fees or capacity charges for utilities, including water and sewer service, unless the accessory dwelling unit was constructed with a new single-family dwelling.

(4) For an accessory dwelling unit described in subparagraph (A) of paragraph (1) of subdivision (e), a local agency, special district, or water corporation shall not require the applicant to install a new or separate utility connection directly between the accessory dwelling unit and the utility or impose a related connection fee or capacity charge, unless the accessory dwelling unit was constructed with a new single-family dwelling.

(5) For an accessory dwelling unit that is not described in subparagraph (A) of paragraph (1) of subdivision (e), a local agency, special district, or water corporation may require a new or separate utility connection directly between the accessory dwelling unit and the utility. Consistent with Section 66013, the connection may be subject to a connection fee or capacity charge that shall be proportionate to the burden of the proposed accessory dwelling unit, based upon either its square feet or the number of its drainage fixture unit (DFU) values, as defined in the Uniform Plumbing Code adopted and published by the International Association of Plumbing and Mechanical Officials, upon the water or sewer system. This fee or charge shall not exceed the reasonable cost of providing this service.

(g) This section does not limit the authority of local agencies to adopt less restrictive requirements for the creation of an accessory dwelling unit.

(B) The local agency shall consider the findings made by the department pursuant to subparagraph (A) and shall do one of the following:

(i) Amend the ordinance to comply with this section.

(j) As used in this section, the following terms mean:

(1) “Accessory dwelling unit” means an attached or a detached residential dwelling unit that provides complete independent living facilities for one or more persons. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the single-family or multifamily dwelling is or will be situated. An accessory dwelling unit also includes the following:

(A) An efficiency unit.

(B) A manufactured home, as defined in Section 18007 of the Health and Safety Code.

(2) “Accessory structure” means a structure that is accessory and incidental to a dwelling located on the same lot.

(3) “Efficiency unit” has the same meaning as defined in Section 17958.1 of the Health and Safety Code.

(4) “Living area” means the interior habitable area of a dwelling unit, including basements and attics, but does not include a garage or any accessory structure.

(5) “Local agency” means a city, county, or city and county, whether general law or chartered.

(6) “Neighborhood” has the same meaning as set forth in Section 65589.5.

(7) “Nonconforming zoning condition” means a physical improvement on a property that does not conform with current zoning standards.

(8) “Passageway” means a pathway that is unobstructed clear to the sky and extends from a street to one entrance of the accessory dwelling unit.

(9) “Proposed dwelling” means a dwelling that is the subject of a permit application and that meets the requirements for permitting.

(10) “Public transit” means a location, including, but not limited to, a bus stop or train station, where the public may access buses, trains, subways, and other forms of transportation that charge set fares, run on fixed routes, and are available to the public.

(11) “Tandem parking” means that two or more automobiles are parked on a driveway or in any other location on a lot, lined up behind one another.

(k) A local agency shall not issue a certificate of occupancy for an accessory dwelling unit before the local agency issues a certificate of occupancy for the primary dwelling.

(l) Nothing in this section shall be construed to supersede or in any way alter or lessen the effect or application of the California Coastal Act of 1976 (Division 20 (commencing with Section 30000) of the Public Resources Code), except that the local government shall not be required to hold public hearings for coastal development permit applications for accessory dwelling units.

(m) A local agency may count an accessory dwelling unit for purposes of identifying adequate sites for housing, as specified in subdivision (a) of Section 65583.1, subject to authorization by the department and compliance with this division.

(n) In enforcing building standards pursuant to Article 1 (commencing with Section 17960) of Chapter 5 of Part 1.5 of Division 13 of the Health and Safety Code for an accessory dwelling unit described in paragraph (1) or (2) below, a local agency, upon request of an owner of an accessory dwelling unit for a delay in enforcement, shall delay enforcement of a building standard, subject to compliance with Section 17980.12 of the Health and Safety Code:

(1) The accessory dwelling unit was built before January 1, 2020.

(o) This section shall remain in effect only until January 1, 2025, and as of that date is repealed.

SEC. 1.2.

Section 65852.2 of the Government Code is amended to read:

65852.2.

(A) Designate areas within the jurisdiction of the local agency where accessory dwelling units may be permitted. The designation of areas may be based on the adequacy of water and sewer services and the impact of accessory dwelling units on traffic flow and public safety. A local agency that does not provide water or sewer services shall consult with the local water or sewer service provider regarding the adequacy of water and sewer services before designating an area where accessory dwelling units may be permitted.