Building 15 has by now been torn down to allow the construction of Roche’s new high-rise Building 1. The interior had been refurbished for interim use by F. Hoffmann-La Roche AG employees. The color scheme based on red and green accentuated the architectural structure of the walls that face different directions. The walls facing east were painted green to emphasize the cool morning light, while the red of the walls facing west reflected the warmth of the evening light.