This modular office building in the middle of Berlin's government district was developed for the German Bundestag. The building responds to its complex surroundings with great simplicity: a simple H-plan mediates between the ridge structure of the Marie-Elisabeth-Lüders-Haus and the block edge of the adjacent quarter. The H-formation results in two parts of the building with different qualities and their courtyards: the southern part lends itself as a cour d'honneur, through which one reaches the semi-public areas and the generous staircase. The northern part - protected from the noise of the light rail by a glass wall - houses a green courtyard, the main security area and most of the 400 offices.
All offices were designed as prefabricated solid wood modules. Window elements, a wooden frame with thermal insulation and integrated sun protection system, and a substructure for the facade cladding of colored glass are installed in the module at the factory. Only the floor slab, the technical rooms on the first floor and the central atrium will be built in precast reinforced concrete. The material concept of the interior spaces follows the constructive logic of this hybrid construction, the raw construction materials wood and concrete remain visible here.
Due to the modular construction, the building is particularly deconstructible. Individual modules can easily be rebuilt at another location or recycled. The approximately 5000 m³ of wood used in the 470 modules will grow back over the next 15 years.