The new central train station and the government area are to be connected to the
underground rail network by an extension of the line U5. We designed the new station Berlin City Hall.
In the original design of 1999, this underground station was planned as an interchange station. Due to changes in the political and budgetary conditions, this was not realised.
In the second design, the leading idea was to provide a connection between ground level and the underground level using material and an open design that allowed ample daylight in.
In 2010, when excavations found archaeological remnants of the first, medieval town hall,
we were asked to develop a revised design, in order to preserve as many of the remnants as possible.
As a result, a very compact station was to be designed and large openings for daylight could no longer be included. The new design identity of the station was created by a strong spatial concept, an expressive structure using “mushroom columns” and a special wall design.