To generate this space a pipe-like shell was imposed on the existing building. The new shell is overlapping both sides of the original building. In the South it establishes the entrance area as enclosed exterior space and it adds more volume to the North that is inhabited by the new interior spaces. At the entrance the new shell adapts the traditional hip-roof outline of the existing building which is lowered further down to the West for sun protection.
At the transition to the new interior spaces the roof is folding in irregular triangle geometries. This transformation of the roof ends in a cubic building type. Generated out of functional aspects a very specific and individual structure is developed that spans a transformation from an archetypical pitched roof house to a modern cubic structure. According to the idea of a homogeneous skin the roof surface and the wall surfaces are uniformly cast in the same material.
In regard to the traditionally shingle-clad roofs and roofscapes of the villas of the surrounding neighbourhood the facade is also clad in a shingle-structure. The characteristic slate-shingles of the vicinity are reinterpreted in scale and material: The shell is wrapped in dark-weathered copper sheet whose laying system resembles an enlarged shingle structure.
Just as the existing building is sitting as a concrete element in the new shell and is providing its form - the new living spaces are added as inscribed volumes to the pipe-like shell.