Although black is the dominating colour of this building project, the open-plan architecture, an almost transparent northern façade and the generous windows on the southern side allow an abundance of light into the house. This is made possible by the combination of Schüco lift-and-slide systems and a mullion/transom construction that connects the ground floor to the upper floor. The large-scale glazing follows the visual axis across the open rooms so that, as soon as you enter the house, the view extends through the living room and out to the greenery beyond. The highly thermally insulated, Cradle to Cradle-certified windows, façades and sliding doors from Schüco also contribute towards making the building envelope energy-efficient and sustainable.