New Convention Center Seattle 2025. Seattle convention center summit nearly doubles the space and more than doubles the capacity of seattle convention center to host events of all sizes. For accessibility information for getting around seattle, we highly recommend accessmap seattle, a project by the university of washington’s taskar center for accessible technology.

This is a tour of the new summit expansion to the seattle convention center, with a focus on accessibility in the space. Unlike many other convention centers, this new gathering space, designed by lmn architects, is filled with light, airiness and dramatic views in every direction of the surrounding downtown.