For the extension of this Waldorf School, Lederer + Ragnarsdóttir + Oei took their cue from the organic contours of the existing building. The plan of the new building is made up of rounded forms and consists of two parts: one wing containing staff rooms and after-school care on the ground floor and classrooms above, and another wing containing the main auditorium. Although externally they form a single, yellow-plastered whole, on the inside they are very different in ambience and this has everything to do with the windows. The large horizontal window bands in the east façade flood the classrooms and other rooms with an even light. The auditorium is somewhat reminiscent of Le Corbusier's Chapel at Ronchamp, thanks to the randomly placed windows. The western light reflects the different colours of the glass onto the floor and wall in patches of coloured light that move across the room during the day.