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Ordinance No. 2347 <br />Accessory Dwelling Units and Development Code Cleanup <br />May 16, 2017 <br />Page 2 of 3 <br /> <br /> <br />some cases, be overly restrictive. The City Council requested that the Ordinance be <br />amended with a revised development standard that offered a sliding scale of options <br />that would allow ADUs of up to 1,200 square feet in size, depending on the lot size and <br />the size of existing primary dwelling. <br /> <br />No changes were recommended to the minor text clean-ups to the Development Code. <br /> <br />DISCUSSION <br />The size and scale of ADUs can have a significant impact on neighborhood character. <br />An out-of-scale ADU could negatively affect neighborhood character, and the privacy of <br />neighbors. The new State law permits local jurisdictions to regulate the size of ADUs, as <br />long as they permit at least a 150 square foot efficiency unit, and allow a maximum size <br />of up to 1,200 square feet. <br /> <br />In all circumstances the underlying development standards for a primary structure, <br />including setbacks, lot coverage, and FAR still apply to new ADUs, in addition to the <br />other specific ADU development standards. Property owners must determine how <br />much square footage they wish to dedicate to the primary dwelling or to other structures <br />such as an ADU. For example, if a property already meets or is very close to the <br />maximum FAR limitations, a newly constructed ADU or other accessory structure may <br />not be possible. However, a property owner would still have the option to create an <br />ADU by converting existing square footage into an ADU. <br />ADUs contained within the existing space of a single-family dwelling or accessory <br />structure would have the least impact on neighborhoods as they would not change the <br />appearance of the neighborhood. Detached and one-story attached ADUs may have a <br />greater impact as they are visible as new construction. Therefore, newly constructed <br />detached and attached ADUs will still be limited to 16 feet in height and one story, or <br />shall not exceed the height of the existing primary residence if it is less than 16 feet. <br />These development standards ensure an ADU will always be an accessory use to the <br />main home, and be consistent with the maximum height of other detached (accessory) <br />structures. <br />To provide for a broader range of options, the following revisions are proposed: <br /> For ADU’s contained within the existing space of a single-family dwelling or <br />accessory structure: The ADU shall have a floor area of not more than 50 <br />percent of the size of the existing primary residence, but in no case shall exceed <br />1,200 square feet. <br /> <br /> For newly constructed detached and attached ADU’s, a sliding scale of options <br />with three tiers; 800, 1,000, and 1,200 square feet are proposed. The tiers allow <br />for the development of detached and attached ADUs that are proportional to the <br />size of the lot and the size of a house that could be built on the lot. <br /> <br /> <br />