This project involves the conversion of an old boiler room (part of the old Erstein cotton mill) into a media library. The volumes and façades of the existing building have been retained, as well as the chimney, a striking landmark recalling the history of the site. Only the lean-tos on the rear façade were demolished, because of their poor state of conservation; they were replaced by similar volumes on either side of the chimney.
The façade facing the centre of the ZAC (development area) features a metal lattice with taut fabric panels used for signage. The main entrance consists of a vestibule sheltered by an awning, under which visitors can wait for the library to open. The surroundings are designed with both pedestrians and cyclists in mind, with footpaths and a shelter for fifteen bikes.
The interior space lends itself to a range of activities: sitting, playing, reading, chatting, seeking shelter, and so on. The mezzanine and ground floor meeting room afford views of the canal and planted areas thanks to the generously glazed façade overlooking the Muehlkanal.