The building group project in the inner-city neighbourhood courtyard in Mannheim combines building with existing buildings worthy of preservation with new construction and general refurbishment. The building is located in an inner-city neighbourhood courtyard in Mannheim. The area is characterised by the tension between history and modernity. The preservation of valuable building fabric and dealing with monument protection were an important issue. The idea of the building group unites the building community, which is made up of people from all walks of life. By offering different types and sizes of flats, all needs are catered for.