The city of Bochum wants a design-and-build contractor (Totalunternehmer) to extend and convert the Arnoldschule, a primary school in a dense residential area. Scope includes a new building wing along Adolfstraße, a sports hall, classrooms and playground work. The work is carried out in five steps, two of which are already done. The notice is part of a wider school building programme covering 27 schools.