King CountyFor more information about this layer please see the GIS Data Catalog . 21A.60.040 Classification of street type for street frontage - multiple street frontages - allowed frontage types. A. For each street frontage, the street type shall be classified based on the following order: 1. Arterial: streets with a classification of principal, minor, or collector arterial, excluding core street as described in subsection A.4. of this section; 2. Local mixed use: two-lane, nonarterial streets adjacent to CB, NB, RB, and O zones; 3. Local residential: nonarterial streets adjacent to R-12, R-18, R-24, and R-48 zones; and 4. Core street: both sides of 16th Avenue Southwest in the White Center unincorporated activity center from Southwest Roxbury Street at the north to Southwest 100th Street at the south. B. Where a building or site is located on multiple street frontages: 1. The portion of the building facing the higher-order street shall be designated the primary street frontage; and 2. The portion of the building facing the lower-order street or streets shall be designated the secondary street frontage.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/d96068b5e84143e8b8293db7c6390cde_0engKing County GIS Open DataPublicUrban Design Standards Designated Streets - North Highline [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2025-07-30