(G) An accessory dwelling unit shall be sold or otherwise conveyed separate from the primary residence only under the conditions outlined in this paragraph or pursuant to Section 65852.26.
(11) 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.
(b) (1) 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 or serve 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 either approve or deny the application to create or serve an accessory dwelling unit or a junior accessory dwelling unit within 60 days from the date the permitting agency receives a completed application if there is an existing single-family or multifamily dwelling on the lot. If the permit application to create or serve an accessory dwelling unit or a junior accessory dwelling unit is submitted with a permit application to create or serve a new single-family or multifamily dwelling on the lot, the permitting agency may delay approving or denying the permit application for the accessory dwelling unit or the junior accessory dwelling unit until the permitting agency approves or denies the permit application to create or serve the new single-family or multifamily dwelling, but the application to create or serve 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 approved or denied the completed application within 60 days, the application shall be deemed approved.
(2) If a permitting agency denies an application for an accessory dwelling unit or junior accessory dwelling unit pursuant to paragraph (1), the permitting agency shall, within the time period described in paragraph (1), return in writing a full set of comments to the applicant with a list of items that are defective or deficient and a description of how the application can be remedied by the applicant.
(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 requirement for a zoning clearance or separate zoning review or 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, front setbacks, and minimum lot size, for either attached or detached dwellings that does not permit at least an 800 square foot accessory dwelling unit with four-foot side and rear yard setbacks to be constructed in compliance with all other local development standards.
(D) Any height limitation that does not allow at least the following, as applicable:
(i) A height of 16 feet for a detached accessory dwelling
unit on a lot with an existing or proposed single family or multifamily dwelling unit.
(ii) A height of 18 feet for a detached accessory dwelling unit on a lot with an existing or proposed single family or multifamily dwelling unit that is within one-half of one mile walking distance of a major transit stop or a high-quality transit corridor, as those terms are defined in Section 21155 of the Public Resources Code. A local agency shall also allow an additional two feet in height to accommodate a roof pitch on the accessory dwelling unit that is aligned with the roof pitch of the primary dwelling unit.
(iii) A height of 18 feet for a detached accessory dwelling unit on a lot with an existing or proposed multifamily, multistory dwelling.
(iv) A height of 25 feet or the height limitation in the local zoning ordinance that applies to the primary dwelling, whichever is lower, for an accessory dwelling unit that is attached to a primary dwelling. This clause shall not require a local agency to allow an accessory dwelling unit to exceed two stories.
(d) Notwithstanding any other law, and whether or not the local agency has adopted an ordinance governing accessory dwelling units in accordance with subdivision (a), all of the following shall apply:
(1) The local agency shall not impose any parking standards for an accessory dwelling unit in any of the following instances:
(A) Where the accessory dwelling unit is located within one-half mile walking
distance of public transit.
(B) Where the accessory dwelling unit is located within an architecturally and historically significant historic district.
(C) Where the accessory dwelling unit is part of the proposed or existing primary residence or an accessory structure.
(D) When onstreet parking permits are required but not offered to the occupant of the accessory dwelling unit.
(E) When there is a car share vehicle located within one block of the accessory dwelling unit.
(F) When a permit application for an accessory dwelling unit is submitted with a permit application to create a new single-family dwelling
or a new multifamily dwelling on the same lot, provided that the accessory dwelling unit or the parcel satisfies any other criteria listed in this paragraph.
(2) The local agency shall not deny an application for a permit to create an accessory dwelling unit due to the correction of nonconforming zoning conditions, building code violations, or unpermitted structures that do not present a threat to public health and safety and are not affected by the construction 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 and one 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 as provided in clause (i), (ii), or (iii) as applicable, of
subparagraph (D) of paragraph (2) of subdivision (c).
(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 shall allow up to 25 percent of the existing multifamily dwelling units.
(D) (i) Not more than two accessory dwelling units 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 clause (i), (ii), or (iii), as applicable, of subparagraph (D) of paragraph (2) of subdivision (c) and rear yard and side setbacks of no more than four feet.
(ii) 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 subparagraph.
(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. The construction of an accessory dwelling unit shall not trigger a requirement for fire sprinklers to be installed in the existing multifamily dwelling.
(4) A local agency may require owner-occupancy for either the primary dwelling or the accessory dwelling unit on a single-family lot, subject to the requirements of paragraph (8) of subdivision (a).
(5) 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.
(6) 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.
(7) 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 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.
(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.
(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 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, or upon separate conveyance of the accessory dwelling unit pursuant to paragraph (10) of subdivision (a).
(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 shall supersede a conflicting local ordinance. 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 this 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 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.
(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 that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. 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) “Nonconforming zoning condition” means a physical improvement on a property that does not conform to current zoning standards.
(7) “Objective standards” means standards that involve no personal or subjective judgment by a public official and are uniformly verifiable by reference to an external and uniform benchmark or criterion available and knowable by both the development applicant or proponent and the public official prior to submittal.
(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) “Permitting agency” means any entity that is involved in the review of a permit for an accessory dwelling unit or junior accessory dwelling unit and for which there is no substitute, including, but not limited to, applicable planning departments, building departments, utilities, and special districts.
(10) “Proposed dwelling” means a dwelling that is the subject of a permit application and that meets the requirements for permitting.
(11) “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.
(12) “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), 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.