BlueBox Bochum, Architecture faculty building on the Hochschule Bochum campus, Bochum, Germany

BlueBox Bochum, also known as Alte Mensa, is a single-storey hall with a steel-tube frame and large windows, built by Bruno Lambart in 1963–1965 after Mies van der Rohe's Crown Hall. Its upper floor serves as an architecture studio, while the ground floor hosts exhibitions and conferences.

Bruno Lambart designed the building, erected in 1963–1965 as a temporary canteen for the Ruhr University and modelled on Mies van der Rohe's Crown Hall. It served meals for six years, then housed the university library from 1971, stood largely empty, and from around 1985 held 250,000 to 300,000 volumes as the Cologne library centre's storage depot. The architecture department took it over in 2001, and after a full renovation by Wolfgang Krenz it reopened in May 2011.

The name BlueBox comes from the blue facade panels of its former use as a storage library. Since 2001 the architecture department has used the upper floor as a studio, while the ground floor hosts exhibitions, international workshops and the AMM Symposium, Germany's main conference on architectural communication.

The BlueBox sits on the Hochschule Bochum campus; the architecture department's studios occupy the upper floor, while the ground floor hosts exhibitions, workshops and conferences such as the AMM Symposium. The building holds 350 workstations and can take events of up to 800 people. External architecture students are explicitly addressed as a target group for the international studio programme.

The blue facade panels that give the building its name date from its use as a storage magazine for the Cologne university library centre, which kept 250,000 to 300,000 books, journals and newspapers there from around 1985. Architect Bruno Lambart designed the steel-tube kit structure so it could be dismantled and rebuilt elsewhere.