The new Stammheim district house is an open house for citizens in the immediate vicinity of Stammheim Castle and the former castle barn. The identity-forming building opens up both to the castle courtyard in the west and to the church square in the east and shapes the sequence and connection of the urban spaces. The three-storey district house with a traditional local gabled roof is designed as a multifunctional building. On the first floor, a café invites people to linger, while the second floor provides flexible office space for municipal institutions and clubs as well as group and multi-purpose rooms. The second floor houses the spacious, open-plan citizens' hall, which allows visitors to experience the supporting structure of the roof. In addition to the town hall, the planning and construction measures included an underground parking structure that is structurally independent of the town hall, the underpinning of the historic castle barn and the shoring of a construction pit.
The building is designed as an economically and ecologically sustainable timber-concrete hybrid construction. The buried components and the internal structural elements of the rising storeys are made of recycled concrete. Wood was used for the supports in the façade level and the roof truss. PV modules integrated into the roof surface and the façade make a positive contribution to the building's energy balance. The energy yield is optimized by adapting the cross-sectional shape of the slats and rotating them differently around the vertical axis, creating an exciting alternation of more and less open areas depending on the viewing angle.