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(A) Attached ADUs shall not exceed fifty(50) percent of the size of the habitable space <br /> of the primary residence on the lot. Attached ADUs may only exceed fifty (50) <br /> percent of the size of the habitable space of the primary dwelling to accommodate <br /> an ADU up to eight hundred (800) square feet in size. In no case shall the attached <br /> ADU exceed one thousand (1,000) square feet in size. <br /> (B) ADUs may not exceed eight hundred (800) square feet in size in cases where both <br /> an ADU and JADU are developed or proposed on a lot. <br /> (C) Existing accessory structures may be converted into an ADU and may be <br /> expanded by up to one hundred fifty (150) square feet of the existing footprint. <br /> Development standards applicable to new ADUs shall not apply to one hundred <br /> fifty (150) square foot expansions. If an expansion of an accessory structure <br /> beyond one hundred fifty (150) square feet is proposed, the ADU shall be subject <br /> to and comply with all development standards applicable to a new ADU. <br /> (D) The conversion of an existing accessory structure or a portion of the existing <br /> primary residence to an ADU is not subject to size limits. <br /> (E) Detached ADUs shall not exceed two (2) stories or twenty (20) feet in height, as <br /> measured from the lowest adjacent grade of the structure to the highest point of <br /> the roof on the structure. The conversion of an existing accessory structure or a <br /> portion of the existing primary residence to an ADU is not subject to height <br /> requirements. <br /> (F) An ADU may encroach into the required front yard setback to permit an ADU up to <br /> eight hundred (800) square feet in size. The conversion of an existing accessory <br /> structure or a portion of the existing primary residence to an ADU is not subject to <br /> setback requirements. <br /> (G) No minimum setback shall be required for an ADU constructed in the same location <br /> and to the same dimensions as an existing structure that encroached into a <br /> required setback that was demolished to construct the proposed unit. <br /> (H) Lot coverage and use intensity maximum established in zoning district may be <br /> exceeded to permit an ADU up to eight hundred (800) square feet in size. The <br /> conversion of an existing accessory structure or a portion of the existing primary <br /> residence to an ADU is not subject to lot coverage requirements. <br /> (I) Required open space may be reduced to permit an ADU up to eight hundred (800) <br /> square feet in size. Open space requirement shall only apply to properties <br /> developed or proposed to be developed with a single-family residence. The <br /> conversion of an existing accessory structure or a portion of the existing primary <br /> residence to an ADU is not subject to open space requirements. <br /> (J) Shall be usable, continuous, non-front yard open-space, excluding driveways and <br /> parking areas. Any open space with a minimum dimension of fifteen (15) feet by <br /> fifteen (15)feet shall be deemed continuous open space. <br /> Ordinance No. NS-3076 <br /> 8of10 <br />