Precast concrete units play an important role in the building trade. This project included the development of all-purpose concrete facade elements with integrated vacuum insulation. Prefabricated room-high elements are used to construct slim facades with excellent heat insulation characteristics that are suitable for use in passive houses. The vacuum panels are fastened to the concrete units by means of low thermal bridging brackets to allow the subsequent replacement of defective panels. Meanwhile a demonstration building has also been constructed using these new types of precast concrete units; this building is currently being scientifically evaluated.