Design: The nine buildings on the site of the former oxygen factory look like pavilions scattered around the garden. A series of residential units have been grouped together in different buildings (building kit). This creates maximum variety at no extra cost, because the same building components are reused several times. The permeable balconies as a "green room" significantly increase the quality of living.
Wood: Houses 1-4 (Masswerk Architekten) are built of pure wood. The exterior is made of light-coloured, folded sheet metal and the balconies are made of wood. Houses 5-9 (Müller Sigrist Architekten) have a concrete entrance and load-bearing interior walls of timber. The facades are designed as ventilated timber cladding covered with tapered vertical transoms. Their silver-grey colour creates a pleasant contrast to the green surroundings.
Energy: The use of solar energy, a dynamic underground storage tank and an energy network (a low-temperature network that uses waste heat) are the basis for achieving the 'Zero-Zero' target. The entire site of approximately 165 000 m² relies on CO2-neutrality. The aim is to achieve integrated self-sufficiency in primary energy for heating and water purification.