Laserfiche WebLink
City of Tukwila My WebLink |HelpSearch Tips |About |Sign Out
B. The design standards required in TMC Section 18.50.050 (5) and (6) may also <br />be modified by the Community Development Director as a Type 2 Special Permission <br />decision if the proposal includes a replacement of a single wide manufactured home <br />with a double wide and newer manufactured home. The property owner can apply for <br />this waiver only one time per property starting from the date of adoption of this <br />ordinance. Additionally, the proposal should result in aesthetic improvement to the <br />neighborhood. <br />C. The design standards required in TMC Section 18.50.220.A (4) may be <br />modified by the Community Development Director as a Type 2 Special Permission <br />decision. The design of an attached ADU that does not reflect the design vocabulary of <br />the existing primary residence may be approved if the new portion of the structure <br />exhibits a high degree of design quality, including a mix of durable exterior materials, <br />detailing, articulation and modulation. <br />Section 11. TMC Section Adopted. TMC Section 18.50.220, "Accessory Dwelling <br />Unit (ADU) Standards," is hereby established to read as follows: <br />18.50.220 Accessory Dwelling Unit (ADU) Standards <br />A. General Standards. <br />1. Detached ADUs may only be built on lots that meet the minimum lot size <br />required in the Zoning District they are located within. Attached ADUs have no minimum <br />lot size requirement. <br />2. Only one ADU, either attached or detached, is permitted per parcel <br />containing a single-family dwelling. <br />3. Attached ADUs may occupy a maximum of 40% of the square footage of <br />the primary single-family dwelling (excluding the area of any attached garage) or up to <br />1,000 square feet, whichever is less. <br />4. Attached ADUs created through additions to the primary single-family <br />dwelling shall be consistent with the roof pitch, materials and window type of the <br />existing structure. <br />5. Detached ADUs may be a maximum of 800 square feet. If built over a <br />detached garage, the detached garage would not count toward the area limit for the <br />ADU. <br />6. Detached ADUs may be up to 20 feet in height, except that an ADU built <br />over a detached garage may be up to 25 feet in total height. <br />7. Detached ADUs must be set back at least as far from the street as the <br />primary single-family dwelling. This does not apply to the second front of a through or <br />corner lot, where the unit is incorporated into an existing structure, or where there is at <br />least 60 feet between the existing single-family dwelling and the front property line. <br />ADUs shou0d be designed and located in a manner that minimizes the irripact <br />pn___”adjadent develp_pmeriti This can be achieved by_ avoidin_g_ window and door <br />aiacement directtly across from opfhlincLsion neighboriryistructures or WErethaHSflCt <br />W: Word Processing\Ordinances\ADU regulations updated strike-thru 6-26-18.doc <br />NG:bjs <br />Page 15 of 18 <br />109 <br />