I attempt in this paper to conceptualize a notion of spatial justice in order to point to the dialectical relationship between (in)justice and spatiality, and to the role that spatialization plays in the production and reproduction of domination and repression. I argue that the city provides a productive ground for the formation of a spatially informed ethics of political solidarity against domination and repression. A ‘triad’ is articulated to inform such politics, which brings together three notions: the spatial dialectics of injustice, the right to the city, and the right to difference. The notion of spatial justice is employed as a theoretical underpinning to avoid abusive interpretations of Lefebvrian rights in a liberal framework of individual rights. The case of French urban policy is used for illustrative purposes. Finally, the notion of égaliberté is introduced as a moral ground on which the triad may be defended.