The author proposes in this article a series of reflections concerning some of the challenges and difficulties with which facilitators have faced in interventions of community participation with teenagers. Among her reflections she includes an initial discussion of the conceptual complexity of these projects, continuing with an analysis of qualitative character of the theoretical and methodological base that proposes the community psychology and its relation with concrete experiences of intervention by means of interviews with facilitators of community projects who seek to promote the participation of the teenagers, framed in Spain, as well as for literature review and proper experiences in this type of projects. In this line, they put into light different challenges and difficulties, which relate to political, social, methodological and technical elements, among others, as well as the ways of proceeding, highlighting the relevancy of place-based interventions and the need to consider the multiple variables that coexist, as well as the complexity of the process in general.