This master thesis discusses the topic of "Residential streets ? urban spaces for children using the example of Graz", mainly considering the matter, whether and why residential streets can be declared urban spaces for children. It is argued that especially children and adolescents see residential streets as traffic-reduced zones that offer various possibilities for spending pastime. Playing games and using outdoor elements contribute to the fact that those areas can be declared child-friendly in the same way, as do increased encounters and interactions between neighbours. The choice of methodology applied is based on thorough analogue and digital literature research as well as on the empirical part of this thesis, which is composed of expert interviews. The first chapter explains the meaning of action associated with the action-oriented aspects of social geography. At the same time, it is necessary to explicate action and behaviour patterns and precisely analyse children?s ways of appropriating space. Furthermore, different approaches to the concept of space, which are mainly based on WEICHHART?s theories (2008) and entail child-friendly definitions of space, will be illustrated. The next chapter deals with the role of children in urban spaces and discusses their levels of participation and procedures/methods for involvement as well as legal issues.The focus of the last chapter of the theoretical part lies on a residential street complex in Eggenberg. Exemplifications on planning, design, creation, and evaluation will be made. The empirical part mainly describes how children and adolescents can be included in the planning process of urban spaces. Lastly, indicators for child-friendly spaces will be shown and the question of whether residential streets can reflect these will be analysed.