Nova is a 21st-century nursery, it is a unique project integrating from its conception the Playful Roaming pedagogy developed by the specialist in early childhood, Laurence Rameau. The concept is based on «the roaming ribbon», it brings together 3 main principles: the free movement of children in the nursery, the creation of playful universes, and the fact that the child is the author of his game. The building is slightly raised from the ground with a cross volume that exploits the four orientations of the plot.