Our problematic is to clarify the conceptual emergence of urban design and the technical shift for it in the Renaissance of Paris. We make a hypothesis that the crown invents the expression<<bonne ville>>for differentiating the cities which can equip an enceinte. But in the late Renaissance, his political power becomes too absolute to abolish it and adopt the expression<<embellissement des villes>>which means the direct interventionism over the cities for showing off their beauty to the foreign countries. It is this active concept which prevents the occurrence of the expression <<paysage urbain (townscape)>>for the long time.
