2/2 – They tell of the tectonics of the layered building. The floor-by-floor staggered windows emphasise the autonomy of each layer. The relationships between the elements only become apparent at second glance. The entrance from the street – if it is not via the cathedral parking hall – is distinguished by the red signal colour of the guiding wall that leads into the interior. The internal order corresponds to the external expression. Two flats on each of three floors plus an attic are strung along the access corridor. The bathrooms and storage rooms face north towards the street, the rooms face east or west, and the spacious living area faces south. The earthquake-proof construction of the villas consists of the load-bearing core, the flat partition walls and steel columns at the façade level, which allow for a free division of the room walls. Floor-to-ceiling timber panels, triple-glazed windows, a geothermal heat pump and comfort ventilation with an upstream ground register form the backbone of an extremely energy-efficient construction that bears the Minergie label.