In the city Katsan block at the west end quays North Hammarby in Stockholm White architects have designed an office building for themselves. The city block is part of the plan of Hammarby Sjöstad, residential area of the city in what was previously industrial docks in Stockholm. The office building is located in a spectacular urban landscape where the horizontal bridges Skanstull extend the site and in collaboration with Hammarby locks the gateway to Lake Mälaren, form the backdrop of the building site.The has a simple exterior form: a long narrow rectangular glass box. The facade consists of a light metal cladding with glazing. On the roof, behind the facade, is a volume of timber landscaping adjacent terrace. On the median of opening holes in the middle of the building. Here the main entrance of the building, which can also be reached from the opposite side by a pedestrian bridge to three floors.
The project has embraced strong environmental requirements. Despite the glass facades low energy consumption is maintained. The climate is controlled by the use of thermal mass of the building. Water is drawn through insitu pipe discarded plastic on the floor slab, thus increasing the cooling capacity of the mass of the building. The contribution of energy is roughly free as it comes from the adjacent channel. The project has received a number of architectural awards. It has also been nominated for the Mies van der Rohe.