2005 – 2007
2006 – 2008
Services rendered by Werner Sobek
Structural engineering (work phases 1-7 in accordance with § 64 of HOAI)
GVV Städtische Wohnungsbaugesellschaft Singen mbH, Singen/Germany
Rainer Viertlböck, Gauting/Germany
The Hegau Tower is the tallest building and new landmark of the thriving town southern German town of Singen. The building complex designed by architect Helmut Jahn comprises an 18-storey, 67.5 m high-rise building as well as an adjoining medium-rise building. The gross floor area of both buildings amounts to some 14,500 m2. Structurally independent of one another the medium and high-rise buildings are combined to a single entity by a glass facade that extends beyond both buildings and has the effect of optically reducing the mass of the building complex. Fresh-air and exhaust-air louvers provide natural ventilation and ensure a pleasant climate inside the building. Although the project had to be planned and implemented on an extremely tight budget, it was still possible to achieve a building of architect-urally high quality: The Hegau Tower was awarded the 2009 Chicago AIA Award. In 2018 it was CTBUH 10 Years Award Finalist.