Berlin Congress Hall and "Haus des Lehrers"

The listed building complex consisting of the East Berlin Congress Hall - today the Berlin Congress Centre (bcc) - and the Haus des Lehrers (HdL) was built on Berlin's Alexanderplatz from 1961 to 1964 in the style of post-war modernism according to designs by the GDR star architect Hermann Henselmann. The congress hall stood out due to its futuristic architecture with a domed roof. The HdL was the first high-rise building on the Alex and was used for the further training of educators. From 2002 to 2005, the ensemble was renovated and modernised in accordance with the preservation order. CANZLER was responsible for the planning, awarding and execution of the system groups 4 - heavy current technology and 5 - telecommunications and IT systems. A particular challenge was the modernisation of the historic lighting fixtures in the congress hall in accordance with the requirements of a listed building, while preserving the original architectural details. The lighting systems and electrical installations can be controlled centrally and decentrally using a bus system, and the security technology was adapted to suit the flexibly designed exhibition and conference areas. The electro-acoustic systems were designed for different events, but also for evacuation in case of fire.