Alvar Aalto designed the plans for the Seinäjoki City Theatre in 1968, but the building was completed under the direction of Elissa Aalto in 1987. The façade features a soft white ceramic rod surface, and the spacious lobby areas are furnished with Artek furniture.

A unique collection of six bent-wood reliefs designed by Aalto himself is displayed in the lobby. The main stage curtain, named Daidalos, was created by visual artist Juhana Blomstedt.