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5 on the west and the Green River on the east. (see Attachment A). The Tukwila South <br />area contains several zoning designations, which include: Low Density Residential <br />(LDR); Tukwila Valley South (TVS); Heavy Industrial (HI); and Mixed -Use Office (MUO). <br />The entire Tukwila South area includes an overlay which supersedes the underlying <br />zoning (TMC 18.41.010). As referenced in TMC 18.41.010, "the [overlay] may be <br />applied by the City Council to any property lying within the Comprehensive Plan's <br />Tukwila South Master Plan. <br />The property owner, Segale Properties, intends to develop the property consistent with <br />the Tukwila South Master Plan (Ordinance 2234) as adopted with the Development <br />Agreement (Ordinance 2233). The Master Plan calls for approximately ten million <br />square feet of development that would be accommodated in a combination of a campus <br />style research and office environments with a mix of other supporting uses such as <br />retail, residential, commercial, hotel and flex tech. <br />The Master Plan also sets forth the expectation that residential development will occur <br />in a wide variety of low to high-rise multifamily structures, including a mix of townhouses <br />and flats above retail (see Attachment B). To implement the Master Plan, TSO zone and <br />standards were adopted in 2009 in TMC Title 18, Table 18-6: Land Uses Allowed by <br />District. The zoning standards allow multifamily, multifamily units above office and retail <br />uses, senior citizen housing, and assisted living facilities for seniors to be permitted in <br />the TSO zone after a residential design manual with criteria for approval is adopted by <br />ordinance (see Attachment C). <br />Other types of multifamily development envisioned in the Tukwila South Master Plan, <br />including townhouses, duplexes, triplexes, and fourplexes, are listed in Table 18-6 but <br />not identified as allowed uses in the TSO zone. <br />Zoning standards and design criteria for multifamily development were not adopted in <br />2009 because Segale Properties' focus at the time was on developing commercial, <br />office and industrial uses. It was expected that these standards would be adopted later. <br />DISCUSSION OF PROPOSED CHANGES <br />I. Clarify the types of multifamily development allowed in the TSO zone by <br />revising TMC Title 18, Table 18-6: Land Uses Allowed by District. <br />Tukwila Municipal Code defines a multifamily dwelling as follows: <br />TMC 18.06.247 "Multi -family dwelling" means a building designed to contain two or <br />more dwelling units. Duration of tenancy in multi -family dwellings is not less than one <br />month. <br />Some multifamily housing types meeting the above definition and envisioned in the <br />Tukwila South Master Plan were not included as allowable uses when TSO zoning <br />8 <br />