Located on the slope of the Wienerberg, close to three other apartment high-rises, this project creates subsidised housing in a building 101 metres high on a footprint of 16 by 40 metres. The wide façades and modular systems of the design allow variable floor plans. Building services are concentrated in only two main shafts, allowing access to apartment supply lines at any point and thus unlimited freedom of floor plan. The treatment of the two escape staircases - each leading only to the floor below and from there to the main staircase - results in extreme economy of space, while lintel-free internal walls create an unusual sense of spatial flow.

On the south and west sides, a 1.8-metre layer of balconies creates a kind of double-layer façade. Set in front of the insulating skin: a cold skin of glass, printed with a white bar graphic. As a matter of fact the living rooms are orientated to these sides. The thematic treatment: more than a mere formal gesture, this façade is an expression of the content behind it. To the north and the east the building presents a dark, nearly black visage, introverted and closed, representing the sleeping area. A significant feature of that façade: 1.5 metre shields projecting far forward and scattered across it in a seemingly random pattern.