This masters thesis deals with adolescents in public spaces in Graz. The research was carried out because it seems that, in Graz, certain groups of people - including young people are being excluded from public spaces, simply because they dont correspond to the image of a “beautiful and safe city”. The aim of this research is to gain an overview of the current situation of public spaces in Graz from the perspective of young people as well as from the perspective of experts. Additional focus will be put on processes of occupation, appropriation and exclusion, as well as the role of social work in public spaces. For this purpose, a triangulation of methods, which included a social environment analysis of adolescents (needle-method, on-site inspection, interviews) and expert interview was conducted. The results show that, the center of Graz as well as recreational facilities, are very attractive for young people. Public spaces are increasingly being sought out be-cause they offer fun, sports and leisure activities. Considering appropriation processes, it can be said that public spaces in Graz are appropriated primarily with the mere presence. Furthermore, the results show that adolescents are being excluded from several spaces in Graz, particularly in the city center and their own neighborhoods. The public space of Graz has some social offers, in particular street work and the so called „Parkbetreuung“, a social work program focused on parks.