Local Mental Health Councils (CLSMs) offer a concrete and sustainable example of what public mental health, conceived as a common good, could look like. At the intersection of psychiatry, public health, and health democracy, they embody an intersectoral, territorially grounded, and participatory approach to mental health.

Drawing on a review of their origins, an analysis of policy documents, and empirical examples from Parisian CLSM—complemented by insights from other regions—this article proposes viewing CLSMs as empirical and imperfect agents of public mental health in practice. Far from being homogeneous, these mechanisms reflect both local specificities and the effects of the absence of a normative framework.

This contribution highlights the structural tensions that hinder their consolidation, particularly with regard to institutional recognition, the sustainability of resources, and the effective participation of people with lived experience.

Finally, it opens a discussion on the political, organizational, and ethical conditions required for a truly shared territorial governance of mental health.