Protecting against hazards and organizing disaster management are constant concerns for all human societies. However, current environmental challenges require a rethinking of the division of responsibilities and roles of each individual, both managers and citizens. Starting from the case of France, our research aims to study the social design approach from the perspective of territorialized social innovation, in order to better involve inhabitants in the face of flood risk. We will question the place assigned by the law to the individual as the first actor in his or her security, and then we will detail the conditions for the implementation of a creative workshop. Based on the results obtained, we will study the contribution of design as a factor of individual and collective commitment, as well as its reception by the actors.