The new building complex on the campus of the Justus Liebig University in Giessen includes the institute building of the Department of Chemistry as well as the interdisciplinary lecture theatre centre and provides new and spacious research facilities for more than 500 students. The four-storey institute building is divided into a rectangular block and a C-shaped building by the central spine route. This glazed hall provides for a good orientation and a bright atmosphere, producing a simple and meaningful spatial separation between the public areas, containing student workplaces and practical labs, and the institutes and research facilities which are not accessible to the public. The C-shaped part of the building contains the areas for research which are divided into office and laboratory areas as well as documentation zones. The offices are placed along the external facades, overlooking the quiet green area and enjoying views of the landscape. Opposite the offices are the laboratories with the documentation zones. The I-shaped block with the students' practical labs is based, similarly to the research units, on a grid of 1.15 m, which has proven itself in laboratory construction, and is flexible for spatial distribution and layouts. Both parts of the building are arranged around a green terraced courtyard, which follows the topography of the site. The lecture hall building connected to the institute building is a two-storey building and negotiates the change in scale between the latter and the adjacent residential area. It is centrally located on the campus and, together with the “South Piazza”, forms the visual terminus of the central campus pedestrian route. The auditorium building contains five different lecture halls. At basement level, the building is connected to the foyer located in the lower floor of the institute building, which makes it possible to share this space for various events.