The existing school building consists of a square around a large plane tree and is located on the edge of the Oosterpark in Amsterdam. Expansion of the building had to be accompanied by preservation of the plane tree. The facade is fitted with striking black perforated panels. These electrically operated panels act as sun blinds and are part of the artwork “Here Comes The Sun” by Chris Kabel. He has installed 4,500 transparent glass lenses and filters in various colors in these panels. The incidence of light therefore creates a diffuse playful light effect in the classrooms. At a distance from the building, the pattern of the lenses refers to the wave and particle character of light. Alumet anodised the panels in AluBlack.