Forumtorget is the result of an architectural competition to revitalize a square in central Uppsala. Our design builds on the history of the square as a gathering place for manifestations and youth hang out. It consists of three elements: a continuous multilevel sofa, dark granite paving, and a circular plateau that can be used as a stage. The sofa was designed using computational design techniques in close collaboration with social sustainability experts to create a complex, varied form that provides comfortable seating regardless of body shape or physical abilities.