Accessory dwelling units: junior accessory dwelling units.

(1) Existing law, the Planning and Zoning Law, authorizes a local agency, by ordinance or ministerial approval, to provide for the creation of accessory dwelling units in areas zoned for residential use, as specified. Existing law authorizes a local agency to impose standards on accessory dwelling units that include, but are not limited to, parking, height, setback, landscape, architectural review, and maximum size of a unit. This bill would require that the standards imposed on accessory dwelling units be objective. For purposes of this requirement, the bill would define "objective standard" as a standard that involves no personal or subjective judgment by a public official and is uniformly verifiable, as specified. The bill would also prohibit a local agency from denying 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. This bill would require a local agency to review and issue a demolition permit for a detached garage that is to be replaced by an accessory dwelling unit at the same time as it reviews and issues the permit for the accessory dwelling unit. The bill would prohibit an applicant from being required to provide written notice or post a placard for the demolition of a detached garage that is to be replaced by an accessory dwelling unit, as specified. Existing law provides that an accessory dwelling unit may either be an attached or detached residential dwelling unit, and prescribes the minimum and maximum unit size requirements, height limitations, and setback requirements that a local agency may establish, including a 16-foot height limitation and a 4-foot side and rear setback requirement. This bill would increase the maximum height limitation that may be imposed by a local agency on an accessory dwelling unit to 18 feet if the accessory dwelling unit is within 12 mile walking distance of a major transit stop or a high-quality transit corridor, as those terms are defined, or if the accessory dwelling unit is detached and on a lot that has an existing multifamily, multistory dwelling, as specified. The bill would increase the maximum height limitation that may be imposed by a local agency on an accessory dwelling unit to 25 feet if the accessory dwelling unit is attached to a primary dwelling, except as specified. Existing law requires an ordinance that provides for the creation of an accessory dwelling unit to require accessory dwelling units to comply with local building code requirements that apply to detached dwellings, as appropriate. Existing law also prohibits an ordinance from requiring an accessory dwelling unit to provide fire sprinklers if they are not required for the primary residence. This bill would provide that the construction of an accessory dwelling unit does not constitute a Group R occupancy change under the local building code, except as specified. The bill would prohibit the construction of an accessory dwelling unit from triggering a requirement that fire sprinklers be installed in the existing primary dwelling. Existing law provides that a local agency must ministerially approve an application for a building permit within a residential or mixed-use zone to create not more than 2 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 limitation of 16 feet and a 4-foot side and rear setback requirement. This bill would change the height limitation applicable to an accessory dwelling unit subject to ministerial approval to 18 feet if the accessory dwelling unit is within 12 mile walking distance of a major transit stop or a high-quality transit corridor, as those terms are defined, or if the accessory dwelling unit is detached and on a lot that has an existing multifamily, multistory dwelling, as specified. The bill would change the height limitation applicable to an accessory dwelling unit subject to ministerial approval to 25 feet if the accessory dwelling unit is attached to a primary dwelling, except as specified. The bill, if the existing multifamily dwelling exceeds applicable height requirements or has a rear or side setback of less than 4 feet, would prohibit a local agency from requiring any modification to the existing multifamily dwelling to satisfy these requirements. The bill would prohibit a local agency from rejecting an application for an accessory dwelling unit because the existing multifamily dwelling exceeds applicable height requirements or has a rear or side setback of less than 4 feet. Existing law prohibits a local agency from imposing parking standards on certain accessory dwelling units, including those that are located within 12-mile walking distance of public transit. This bill would also prohibit a local agency from imposing any parking standards on an accessory dwelling unit that is included in an application to create a new single-family dwelling unit or a new multifamily dwelling on the same lot, provided that the accessory dwelling unit meets other specified requirements. Existing law, when a local agency has not adopted an ordinance governing accessory dwelling units, requires a permitting agency to act on an application to create an accessory dwelling unit or a junior accessory dwelling unit within specified timeframes. This bill would require a permitting agency to 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, if the permitting agency denies an application for an accessory dwelling unit or junior accessory dwelling unit. (2) Existing law also provides for the creation of junior accessory dwelling units by local ordinance, or, if a local agency has not adopted an ordinance, by ministerial approval, in accordance with specified standards and conditions. Existing law requires an ordinance that provides for the creation of a junior accessory dwelling unit to, among other things, (A) require that the unit be constructed within the walls of the proposed or existing single-family residence, (B) require that the unit include a separate entrance from the main entrance to the proposed or existing single-family residence, and (C) require owner-occupancy in the single-family residence in which the junior accessory dwelling unit is permitted. This bill would specify that enclosed uses within the proposed or existing single-family residence, such as attached garages, are considered a part of the proposed or existing single-family residence. The bill would require a junior accessory dwelling unit that does not include a separate bathroom to include a separate entrance from the main entrance to the structure, with an interior entry to the main living area. The bill would also prohibit a local agency from denying an application for a permit to create a junior 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 junior accessory dwelling unit. (3) Existing law requires a local agency, in enforcing building standards applicable to accessory dwelling units, to delay enforcement for up to 5 years upon the owner submitting an application requesting the delay on the basis that correcting the violation is not necessary to protect health and safety. This bill would prohibit a local agency from denying a permit for an unpermitted accessory dwelling unit that was constructed before January 1, 2018, because, among other things, the unit is in violation of building standards or state or local standards applicable to accessory dwelling units, unless the local agency makes a finding that correcting the violation is necessary to protect the health and safety of the public or occupants of the structure. This bill would specify that this prohibition does not apply to a building that is deemed substandard under specified provisions of law. (4) Existing law requires the Department of Housing and Community Development to administer various programs intended to promote the development of housing, including the Multifamily Housing Program, pursuant to which the department provides financial assistance in the form of deferred payment loans to pay for the eligible costs of development for specified activities. This bill would state the intent of the Legislature that accessory dwelling unit grant programs provide funding for predevelopment costs and facilitate accountability and oversight, as specified. (5) This bill would incorporate additional changes to Section 65852.2 of the Government Code proposed by AB 2221 to be operative only if this bill and AB 2221 are enacted and this bill is enacted last. (6) By imposing new duties on local governments with respect to the approval of accessory dwelling units and junior 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.