§9056.1 GENERAL REQUIREMENTS

Accessory dwelling units (ADU) on lots developed with a primary single-family or multifamily residence or for which a primary residence is proposed shall be ministerially permitted and subject to the following standards/criteria: A. The requirements of this article are applicable to all existing ADUs, as well as those proposed after the effective date hereof, except for legal nonconforming units, or as specifically provided herein. Existing ADUs as of the date hereof inconsistent with the provisions listed herein shall be considered legal nonconforming; provided, that they were legal at the time of their creation. B. ADUs shall be deemed not to exceed the allowable density for the residential lot upon which an ADU is located. ADUs are deemed a residential use that is consistent with the existing general plan and zoning designation for the lot on which an ADU is located with a primary residence.

C. These regulations do not allow the division of property upon which an accessory dwelling unit is located unless all requirements of the applicable zoning district or State law are met. D. An ADU may be rented separate from the primary residence but may not be sold or otherwise conveyed separate from the primary residence unless the conveyance meets the requirements of Government Code sections 66340 through 66342. E. Accessory dwelling units provide complete independent living facilities for one or more persons. 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, including detached garages. F. An ADU must meet all applicable building and fire codes, and shall have electric, water and sewer or septic service with the type of meter arrangement at the property owner’s option. Water, sewer, and electrical services shall be available prior to the issuance of a building permit for an ADU. No new water or sewer connection fees may be required for ADUs that are contained within the existing space of a single-family or multifamily residence or accessory structure, unless the ADU is constructed with a new single-family home. Any impact fees charged for an accessory dwelling unit of seven hundred fifty (750) square feet or more shall be charged proportionately in relation to the square footage of the primary dwelling unit. G. Nothing in this chapter shall preclude the development of a junior accessory dwelling unit as regulated by Ukiah City Code and Government Code sections 66333 through 66339. (Ord. 1244, §5, adopted 2024; Ord. 1258, §2, adopted 2025) §9056.2 DEVELOPMENT REQUIREMENTS A. Applications for a building permit for an ADU shall be deemed approved if the local agency has not approved or denied the completed application within sixty (60) days. If approved, no additional parking or other development standards shall be applied except for building code and fire safety requirements.

44, §5, adopted 2024; Ord. 1258, §2, adopted 2025) §9056.2 DEVELOPMENT REQUIREMENTS A. Applications for a building permit for an ADU shall be deemed approved if the local agency has not approved or denied the completed application within sixty (60) days. If approved, no additional parking or other development standards shall be applied except for building code and fire safety requirements.

B. Applications for a building permit within any zoning district where residential uses are allowed or permitted shall be approved ministerially to develop any of the following:

1. Unit Type: An ADU may be attached to an existing primary residence converted from a portion of the existing living area of the primary residence or attached garage, detached and on the same legal lot as a primary residence, converted from the entirety of or a portion of an existing accessory structure, or attached to an existing or proposed accessory structure. 2. Number of Units: The number of ADUs allowed on a single lot shall be: a) On a lot that contains an existing or proposed single-family dwelling: One (1) new ADU attached or detached. Additionally, one (1) converted ADU created from existing space of the single-family residence or an existing accessory structure. Converted ADUs must have exterior access. ADUs converted from existing structures are eligible for a 150 square-foot expansion to accommodate ingress and egress. b) On a lot that contains an existing multifamily dwelling: Eight (8) ADUs, detached from the multifamily structure, and up to twenty-five percent (25%) of the number of units in the existing multifamily dwelling converted from existing non-livable space in a multifamily structure. The number of Accessory Dwelling Units, however, allowable pursuant to this Subsection shall not exceed the number of existing units on the lot. c) On a lot that contains a proposed multifamily dwelling: Two (2) ADUs, detached from the multifamily structure. C. Size: The maximum size of a detached ADU shall be one thousand two hundred (1,200) square feet, unless located on the same parcel as a multi-family structure, in which case there shall be no maximum unit size. The conversion of an existing accessory structure or a portion of the existing primary residence to an ADU is not subject to unit size requirements. D. Improvements: The City shall not require, as a condition for ministerial approval of a permit application for the creation of an ADU, the correction of nonconforming zoning conditions. For purposes of this section, “nonconforming zoning condition” means a physical improvement on a property that does not conform with current zoning standards. E. Lot Size: No minimum lot size shall be required. F. Lot Coverage: The lot coverage limitation of the base zoning district shall not apply to the construction of an ADU. G. Construction Standards: Not exclusive of other applicable State and local building and fire regulations, ADUs shall comply with the following requirements: 1. Structures within the State responsibility area (SRA) must comply with applicable local and state regulations for setbacks and fire-resistive construction. 2. Structures outside of the SRA must comply with building code regulations for fire-resistive construction, unless more restrictive standards are required pursuant to State law or regulation. 3. Fire sprinklers are not required for the ADU if not required for the primary residence, and the construction of an ADU may not trigger the requirement for fire sprinklers in an existing primary dwelling. (Ord. 1244, §5, adopted 2024; Ord. 1258, §2, adopted 2025)