The participation of children in different processes is an increasing phenomenon due to the implementation of the Convention on the Rights of the Child. Unfortunately the level of competence involved in these processes is often remarkably low. Children are often included in processes only to provide a democratic profile for the work. Children’s participation is positive but must be performed with enough knowledge about and interest in the children involved. There must always be a positive outcome for the children and they must be able to see that their participation has made a difference. Otherwise children’s experiences of participatory work will only result in them becoming disillusioned. Through the use of an example from a project in Stockholm some important issues regarding children’s participation in urban planning are raised, discussed and also questioned.