The extension of the BKM is a compact volume that, by burying most of the program, is able to free up a generous public space around and next to Villa Planta, the original museum. The new building is provided with a continuous pattern, a constructive resource that is able to symbolically link the new volume with Villa Planta, but at the same time, to generate depth, enhancing the varying three-dimensionality of the façade during the day by their ever-changing shadows and acting as a passive sun protection and integrative lattice element in front of the windows of the upper levels of the building. The pattern, a square of 50x50cm, is generated with a special receipt of concrete (local aggregate, cement and addition of synthetic fibers), allowing very thin prefabricated elements and detailing precision, which can even change of material (stainless steel in the delivery door) but keep its powerful geometry all over the skin. In this continuous pattern there are only three “voids”, the main gate and both windows of the entrance hall, which are developed as big glazed surfaces, where the mullions in stainless steel are hanged from the ceiling in order to become as slender as possible.
Architecture: Barozzi Veiga / Subplaner: Schwander & Sutter / Project Management: Walter Dietsche Baumanagement / Landscape: Paolo Bürgi / Structural Engineer: Ingenieurbüro Flütsch / Building Physics: Kuster + Partner / Photographer: Simon Menges + Peter Osterwalder / Façade Planning: xmade