Construction of Additional Storeys to a Residential Building Berlin Wedding Freienwalder Str. 3 Client: H.J. Hoster Design: ARK 1993 - 1995 Additional floor space 644 sq m Additional total volume 1,489 cb m Basic research / Preliminary planning / Blue-print planning / Pre-approval planning Realization and detailed project-planning / Preparing of allocations / ... ... Assistance with allocations / Object controlling / Object supervision and documentation The additional storeys in this 1970s’ residential building are built in massive construction, with a plaster front and a metal roof. The upper floors were suspended from the existing building, as the additional weight could not be supported solely by the extant corpus. The load subtraction was realized by means of a projecting pylon made of reinforced concrete, which was necessary due to the intricate foundation conditions. The unused balconies were converted into conservatories by adding concrete balustrades, and a street-facing lift was installed so that the whole building could be given a comprehensive outer appearance.