The WSCC Addition is estimated to cost $1.7 billion, making it the single largest real estate development in Seattle history. The project’s size, central location, public ownership, and extensive request for public right-of-way compels the WSCC to offer an accordingly large-scale investment in our communities.

This development poses a once-in-a-generation opportunity to leverage the development and build a long-term positive legacy to make improvements in Seattle’s central neighborhoods.

These 11 projects represent bold investment in Seattle's future by supporting what we need most - public open spaces, safe crossings for people walking and biking, and affordable housing.



A series of benefits which enhance existing and create new public open spaces in our dense and growing center city, including:

  • Improvements to Freeway Park. Improve Freeway Park, the largest urban park in Seattle. to be more safe, accessible, and enjoyable for local residents, employees, and Convention Center visitors.
  • Interstate 5 Lid Feasibility Study. Fund a City-led technical study of extending Freeway park and lidding Interstate 5 in the Center city and beyond for parks, affordable housing, new streets, and other civic uses. 

  • Melrose Promenade. Implement walk and bicycling improvements, public spaces, and public art along Melrose Avenue in Capitol Hill.

  • Pine-Boren Lid Park. Expand Plymouth Pillars Park by building a 14,000 square foot lid park over Interstate 5 at the east corner of Pine Street and Boren Avenue.

  • Terry Avenue Woonerf. Build a pedestrian-oriented woonerf on Terry Avenue between Cherry Street and Marion Street on First Hill.

  • Virginia Street Woonerf. Build a pedestrian-oriented woonerf on Virginia Street between Boren Avenue and Minor Avenue.

Active transportation

A series of benefits which improve safety and enhance the pedestrian realm for walkers and bikers near the Addition project. 

  • 8th Avenue Bicycling Improvements. Build a northbound protected bike lane between Pike Street and Bell Street. 

  • Interstate 5 Overpasses. Implement a suite of pedestrian improvements for Interstate 5 overpasses, such as landscaping and sound buffers, between Olive Way and Madison Street.

  • Olive Way Overpasses. implement a roadway reconfiguration on the Olive Way Interstate 5 overpass and interchange to increase pedestrian safety and reduce traffic conflicts. 

  • Pike/Pine Corridor Bicycling Improvements. Build protected bike lanes along Pike/Pine connecting the existing bike lanes on Broadway and 2nd, and forming the spine of an all ages and abilities bicycle network. 


Build More Homes. Contribute funding to create 300 affordable homes for workers earning hospitality industry wages (50-60% of area median income) within one mile of the Convention Center Addition.