The plan of the tower is based on a curve of constant width. Along with the nearby high rise building it  forms a gate-like boundary to the square and an impressive end structure towards the south east. One point of the curve of constant width points toward the square, marking the main entrance to the building, which opens to the left and right onto an attractive plaza.

The streamlined form of the building, and the way it curves through space due to its horizontal structure, can be seen as being in dialogue with the curves of the adjacent motorway junction.

The facade is a single skin with strips of double skin glazing, allowing exterior sun shades that are protected from the wind.

http://www.orbi-tower.at