Claus en Kaan’s solution, maintained the central hall surrounded by the original building: three levels of classrooms, study areas and lecture theatres. These buildings were stripped down to their concrete skeleton, after which they were re-organised and re-built. On the second level is an elevated open gallery which runs round the entire hall: a magnificent walkway past many classrooms with large glass partitions that bring daylight through to the ground floor.

Certain elements of the old building are clearly recognisable. For instance two sturdy white spiral staircases that once stood on the square, covered in a frosted glass jacket are now at the edge of the hall, exposed rather than enveloped.