• Client:
    Dieter Becken represented by BECKEN Development GmbH
  • Architects:
    HPP Architekten GmbH
  • Listed building
  • Load transfer via tension members and pre-stressed concrete trusses to the central bracing core
  • Basement with former bunker
  • GFA: c. 8,000 m²
    Time: 2016 bis 2017
  • Our scope:
    structural engineering

A style icon shines in new splendour.

This ageing skyscraper, dating from 1966 and easily visible from the Inner and Outer Alster, was renovated and converted for new and high-quality use.

The building’s form of construction is unique in Hamburg.

The floors of the upper storeys are suspended upwards in the facade axes via extremely slender steel constructions. In the uppermost storey the load of the structure is set down on the central bracing core via pre-stressed concrete trusses. On the ground floor the central bracing core is visible as a slender foot on which the entire building stands.

In the original construction, a bunker was integrated into the two basement storeys. This legacy of the global political situation at that time is no longer required, so that new useable floor areas could be created here.

As a special feature, the previously unused roof area with its wide views across the Inner and Outer Alster acquires a new and spectacular role as a rooftop terrace.

With the renovation measures, this unusual building revealed a multiplicity of surprising insights – a challenge for the planning and the construction process.