this building makes an important contribution to the future of a living & ecological city. It’s environmentally sustainable, friendly, open, unconventional. A 4.5m deep sphere lays around the core like a shady shelf, it contains the necessary elements, open platforms serve as balcony zones. The levels can be arranged completely free – a lively mix of functions (hotel, restaurant, retail area) is completed by the public rooftop accessible beyond shopping hours. 160 trees in the facade & on the roof influence the micro-climate. simulations indicate a temperature decrease of 1.5C.