In partnership with François Chatillon Architect and the agency Snøhetta, IGREC INGENIERIE acts as Structure & MEP Engineering, Fire Safety Consultant and Site works management. The amount of the works is approximately €22 million. It aims to a functional, architectural and museographical improvement, as well as the technical standardization of the museum including accessibility for disabled people.

The modernization of the walk, the restructuring of public and staff welcome areas and the optimization of the archives rooms are part of the program. Furthermore, spaces dedicated to temporary exhibitions and privatized rooms are created.