The project is a transformation and refurbishment of a listed office building from 1892. The front building toward the street is completely rehabilitated, and the wings surrounding the inner courtyard are demolished and replaced with a new structure. The courtyard is enclosed in the new building as a glass covered interior atrium, that connect the old and the new building and admit daylight into the office spaces. All functions are accessed via the large, brass clad main stair that stretches from the underground cafeteria to the roof terrace.