SO-050: Pedestrian-Oriented Commercial Development SDO
The purpose of the pedestrian-oriented commercial development special district overlay is to provide for high-density, pedestrian-oriented retail/employment uses.

SO-260: Fall City Business District SDO
The purpose of the Fall City business district special district overlay is to allow commercial development in Fall City to occur with on-site septic systems until such time as an alternative wastewater system is available.

SO-280: Skyway-West Hill Sub-Area, Martin Luther King Jr. Way South Mixed-Use, Development standards to improve the design and aesthetics of the area.
SO-280: Skyway-West Hill Sub-Area, Martin Luther King Jr. Way South Mixed-Use, Development standards to improve the design and aesthetics of the area.

SO-290: Bear Creek Sub-area, Special District Overlay, Change in Land Use Designation and Zoning Classification for office and retail
SO-290: Bear Creek Sub-area, Special District Overlay, Change in Land Use Designation and Zoning Classification for office and retail

SO-270: Vashon Rural Town: Affordable Housing Incentive SDO
The purpose of the affordable housing special district overlay is to provide an optional incentive that will lead to an increase in the supply of affordable housing within the Vashon Rural Town.

SO-120: Agricultural Production Buffer SDO
An agricultural production buffer special district overlay provides a buffer between agricultural and upslope residential land uses.

SO-140: Ground Water Protection SDO
A ground water protection special district overlay limits land uses that have the potential to severely contaminate groundwater supplies and provides increased areas of permeable surface to allow for infiltration of surface water into ground resources.

SO-150: Aviation Facilities SDO
The aviation facilities special district overlay protects existing non-commercial airports from encroaching residential development.

SO-160: Urban Aquifer Protection Area SDO
The urban aquifer protection area special district overlay provides additional protection for urban areas that are highly susceptible to ground water contamination.

SO-170: Highway Oriented Development SDO
The highway-oriented development special district overlay ensures the compatibility of highway-oriented land uses adjacent to rural residential and resource land uses.

SO-190: Erosion Hazards Near Sensitive Water Bodies SDO
The purpose of the erosion hazards near sensitive water bodies special overlay district is to provide a means to designate sloped areas posing erosion hazards which drain directly to lakes or streams of high resource value which are particularly sensitive to the impacts of increased erosion and the resulting sediment loads from development.

SO-200: Heron Habitat Protection Area SDO
The heron habitat protection area special district overlay provides a means to designate areas that provide essential feeding, nesting and roosting habitat for identified great blue heron rookeries.

SO-180: Wetland Management Area SDO
A wetland management area special overlay district provides a means to designate certain unique and outstanding wetlands when necessary to protect their functions and values from the impacts created from geographic and hydrologic isolation and impervious surface.

SO-100: Commercial/Industrial SDO
The commercial/industrial special district overlay accommodates and supports existing commercial/industrial areas outside of activity centers.

SO-090: Economic Redevelopment SDO
An economic redevelopment special district overlay provides incentives for the redevelopment of large existing, underutilized concentrations of commercial/industrial lands within urban areas.

SO-060: Office/Research Park Development SDO
The office/research park special district overlay establishes an area for development to occur in a campus setting with integrated building designs, flexible grouping of commercial and industrial uses, generous landscaping and buffering treatment, and coordinated auto and pedestrian circulation plans.