The listed Mannesmann high rise was built from 1956 - 1958 and was the first tall building in Europe to be designed as a structural steel frame erected around a reinforced concrete core. The architect Prof. Paul Schneider from Esleben was responsible for the project. With 25 floors above ground and 3 below, it reaches an overall height of about 93 m. As an integral feature of the Rhine embankment, it is one of the most impressive elements of the Düsseldorf city skyline. The brief is to bring the building into compliance with the building regulations applicable today and to raise the standard of the offices to a level appropriate for this prominent location. The clear layout emphasises the load-carrying spine at the heart of the building. The structural system can be seen as a dominating core to the high rise and is made more apparent by the architectural form. Materials, light and structure underline the succinctness of the concept.The U-shaped arrangement of hallways and office spaces follows the same principle and allows a good level of natural illumination. A clear orientation within the building with views from all parts of the circulation zones is achieved by the compact, central design.

The building, including the facade, will be taken back to the underlying structural components. Within the scope of the existing stucture, the high rise is then brought up to meet the current standards of fire protection and building physics. The technical services in the building make use of a data bus based building control system. Chilled ceilings and local ventilation units regulate room climate. The project creates new modern ergonomic workplaces in one of the best locations in Düsseldorf.