Creativity is a central feature of educational processes that aim for an artistic communication of sustainability challenges in the city. The study reported in this article empirically explores the deployment of social creativity in cultural initiatives struggling with issues of (un)sustainable urban development in their city (Hanover, Germany). On the one hand, individual characteristics of creativity are explored. On the other hand, forms of collective creativity are of interest, as well as the synthesis of individual and collective creativity under the concept of social creativity.