Restoration and extension of the buildings of the Royal Conservatories of Music in Brussels. The project organizes, around interior gardens completely redesigned and open to the City : The restoration and upgrading to acoustic and thermal comfort standards, suitable for music education, of nine listed buildings, dating from the 18th and 19th centuries, including, among others, the Great Concert Hall by the architect JP Cluysenaar , the Hôtel de Maître on rue aux Laines and Place du Petit Sablon, and their extension, by adding new buildings, creating a new Chamber Music Room, a new Orchestra Rehearsal Room, four new Masterclasses and around fifteen new music classes.