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Temporary Heath Care Dwellings NP NP NP NP NP NP NP 426 <br />1 <br />2 425 Performance Standards <br />3 Some permitted and conditional uses listed in Section 421, 422, and 423 are further regulated based on <br />4 the standards below. <br />5 <br />6 (A) Accessory dwelling units (ADU). When permitted, attached and detached accessory dwelling units <br />7 have the following requirements: <br />8 (1) Number. No more than one ADU shall be allowed per one existing single-family residential <br />9 property. <br />10 (2) Owner occupancy. The principal dwelling or the ADU must be owner -occupied. <br />11 (3) Accessory buildings. The ADU must comply with all other accessory building requirements set <br />12 forth in this section. <br />13 (4) Architecture. The exterior finish of the ADU must match that of the principal structure. <br />14 (5) Maximum size. The maximum size of an ADU cannot exceed 800 square feet of habitable <br />15 space. If in the Shoreland Overlay, the maximum site of a detached ADU cannot exceed 700 <br />16 square feet. <br />17 (6) Home occupations. The ADU cannot be used for any portion of a Level -II home occupation. <br />18 (7) Setbacks. The detached ADU setbacks must meet the setback requirements for a principal <br />19 dwelling . <br />20 (8) Minimum lot size. Detached ADU's are allowed on properties with a minimum of one acre in <br />21 size. See Section 943 for additional lot area standards within Shoreland Overlay. <br />22 (9) Attached ADU's are allowed on properties with a minimum of 80-foot lot width. <br />23 (10) Height. The detached ADU may not exceed a height of 22 feet, or the height of the principal <br />24 structure, whichever is less. ADUs in the Shoreland Overlay District are limited to 15 feet in <br />25 height. <br />26 (11) Address. The ADU must retain the same address as the principal structure. <br />27 (12) Parking. Additional parking for the ADU is not required if off-street parking requirements for <br />28 the principal structure are met. <br />29 (12) ,gt <br />30 . <br />31 (13) Utilities. Accessory dwelling units must share utilities with the principal structure. <br />32 (14) Foundation. Accessory dwelling units must have a permanent foundation. <br />33 (15) <br />34 hI,;W*ng Permit <br />35 (15) Ownership. Accessory dwelling units may not be sold separately from the primary residence, <br />36 and cannot be created with a new tax parcel. <br />37 <br />38 , <br />39 <br />40 <br />41 117) In multi -family, assisted living, memory care, or nursing home structures, ADUs as one- <br />42 bedroom guest suites are permitted at the rate of one ADU per 50 apartment units and shall <br />43 not count towards density calculations. <br />44 <br />45 (6) Home Occupations. Home occupations shall be allowed to exist in the residential zoning districts in <br />46 accordance with certain criteria established to protect the peace, quiet, and domestic tranquility in <br />47 all residential neighborhoods within the city, and in order to guarantee all residents freedom from <br />48 excessive noise, excessive traffic, nuisance, fire hazard and other possible effects of said home <br />Page 58 of 160 <br />