Aim: The project will result in a state of the art and research application concerning the theme of how children can have more substantial impact on urban development. It focuses on three questions: (a) what specific knowledge and experience contribute children to when participating in planning processes? (b) how can a dialogue between children and planners be etablished? and (c) how may digital tools be of use to facilitate the process? The project intend to learn from cases in Gothenburg.