The criteria are outstanding architecture, technical innovations, high energy efficiency and positive effects on the urban environment and the residents. Sauerbruch Hutton Architects received the award for the project.
“We are very happy to receive the award for this extraordinary building. We see the west arcade as a symbol that it is possible to combine very high energy efficiency with impressive architecture, ”says Dr. Ulrich Schröder, CEO of KfW Bankengruppe, can be seen from afar: the attractive facade design with elements in three colors, designed as a double facade in element construction. The construction of the "inner facade" is based on the WICLINE 77 window system with concealed sashes or fixed glazing. For the “outer facade”, FKN Fassaden GmbH & amp; Co. KG from Neuenstein developed a special construction. It appears scaled in the floor plan. Parts of this double facade are polygonal, so that the shape similar to a leaf in the floor plan is created.
The building had already won the CTBUH prize for the Europe region in the summer. With a primary energy consumption of only 98 KWh / m² per year, the Westarkade is one of the office buildings with the highest ecological standards worldwide.
The CTBUH at the Illinois Institute of Technology in Chicago promotes the exchange between architects, engineers and designers of tall buildings. The award was received by Axel Hinterthan (KfW), Matthias Sauerbruch and Louisa Hutton (Sauerbuch Hutton) in the "Crown Hall" of the famous German architect Mies Van der Rohe in Chicago.