As the work was being performed on an occupied site, the implementation of strict phasing was considered essential, an indispensable condition enabling users to embrace the future project. Jean-François Schmit rejected the hypothesis of temporary buildings and gave preference to the installation of permanent buildings in two phases, the construction of the primary school preceding the construction of the nursery school. The monumental representation of the Republic’s motto on the north facade affirms the civic and environmentally responsible role of this building that is concealed beneath green facades on its southern face.