Young people have been protagonists in the construction of peace in recent years, after being associated with imaginaries of delinquency, stigmatization and exclusion. This study is located in the city of Bogota and aims to demonstrate the importance of the collective actions of young people in peacebuilding in urban territories, which gives rise to new citizenships and particular ways of understanding youth from the institutional framework and youth initiatives. These actors deploy public actions in each locality, where the institutional presence is represented in the implementation of public policies. For the proposed analysis, the specific practices of youth organizations led by young people who drive peacebuilding in various localities of Bogotá through the Youth Houses are taken up. These places are points of encounter, dialogue and diversity between grassroots communities and institutions, where the perception of peace and its construction in their own territories are addressed, in accordance with their needs and priorities as a community. For the development of this proposal, several methodological tools were applied, such as documentary review, digital ethnography, semi-structured interviews and focus groups as possibilities to understand youth worlds.