Reinforced concrete skeleton structure, white tank construction
GFA: c. 9,350 m²
Time: 1994 - 1996
Building costs: c. 20 mill. EUR
Our scope: structural engineering
Made fit for the next 150 years.
Retention and making fit for new uses – these are the objectives when it comes to reconstructing a protected historic building. The building at Neuer Wall 19 forms the south-western frontage of the traditional, over 150-year-old terrace of houses in the Alsterarkaden, Hamburg’s oldest shopping mall. Time, and multiple alterations, had left their marks on the building. Reconstruction and safeguarding measures were required.
The protected historical components of the facade, the staircase and the Alsterarkaden were retained in their original position and integrated into a very modern new construction with three basement storeys “slotted in” beneath it. The new basement footing now lies some 14 m below the water level of the Alster river – kept dry in a “White Tank” concrete shell.
The slender reinforced concrete flat slab construction is designed to cater for any possible changes of use in the shops. The safeguarding of the 25 m high facade in combination with a deep building pit directly adjacent to neighbouring historic buildings and the Alster river was the main challenge in this delightful construction task.
The building at Neuer Wall 19 has been retained as a visible witness to its history. And it is fit for the next 150 years.