Concerns about high concentrations of poverty, social isolation and neighbourhood safety have made social housing developments the target of various interventions in recent decades. A current housing policy trend in many Western nations aims to de-concentrate poverty and other forms of disadvantage by engineering more socio-economically mixed residential environments. Based on 40 in-depth interviews, this paper examines the impact of neighbourhood ‘revitalization’ on young adult residents of Regent Park, Canada’s largest and oldest social housing project. We find that the large-scale displacement that attends this process has destabilizing effects on the neighbourhood, both in terms of social networks and supports, but also with respect to young people’s perceptions of their risk of violent victimization.