The multi-level Sonke intervention will be evaluated using a cluster randomised controlled trial design. In a peri-urban setting of Diepsloot, neighbourhood "clusters" (n=18) will be randomly assigned to receive the intervention or a wait-list condition. Baseline, 12 month, and 24 month measures will assess changes in primary outcomes (men's reported use of intimate partner and non-partner violence) and secondary outcomes (severe violence, masculinity norms, harmful alcohol use, mental health). Formative qualitative research will explore the environmental context of Diepsloot, community views on violence, men's mobility, and their experiences of fathering. A longitudinal process evaluation will explore intervention delivery, unfolding of the advocacy element of Sonke CHANGE intervention, and potential mechanisms to change amongst participants.