In Minden a new office building with approx 4300m2 should originate in central situation on the Simeonsplatz. The building is in prominent neighborhood. The Preußenmuseum, Kreisverwaltung and the office building of Mario Botta are in immediate surroundings. The historic section of town of Minden applies directly behind the Simeonsplatz. From Portastrasse the building is well observable and works thus after the Simeonsplatz in the urbane sphere. The new building completes the edge cultivation of the Simeonsplatz. The building follows the legitimacies of the property. By the plastically formulated volume the building of all sides gets a differentiated view. The house is conceived as a 4-storey bolt with a crossed relay floor which is inserted in the context to the surroundings. Volume of construction and height development orientate itself by the continuance cultivation. Nevertheless, by the modern architecture the building stands self-confidently in his surroundings. The well-chosen bright natural materials reflect the clarity of the construction body again and refer to the surrounding cultivation. The stringent facade picture is broken up by specific irregularities. The facade allows an individual fresh air supply over windows. The input area orientates itself to the Simeonsplatz and creates an unequivocal address. The north side orientates itself to the river Bastau. The river with his vegetation creates such an open space in the town. The quiescent traffic is accommodated with approx. 37 parking lots in the ground floor with natural ventilation. The entrance is on the western head side of the building. The internal structure of the building admits an adaptable and open plan creation with natural exposure. By different space zones the offices become more individual. Spontaneous meetings, informal communication, stress dismantling and team spirit are only some positive examples of this room concept.