This paper investigates the political implications of public art using frameworks of conflict and antagonism. We introduce ‘restor(y)ing’ as an analytical scaling device for examining public art’s potential to destabilise official planning processes and reclaim cities through acts of re-telling (restorying) and re-making (restoring) urban spaces. We probe how commissioned/formal and unsolicited/informal public art practices can concurrently operate as artistic activism – or ‘artivism’ – to subvert the status quo in urban contexts that encounter rising socio-spatial inequalities. We deploy restor(y)ing both as an epistemic and real-world commitment to challenging hegemonic powers, and thus amplify activist agendas of marginalised communities. Our argument demonstrates how such politics of restor(y)ing works as a device to unpack conflictual interrelations between ‘æffects’: affects and effects that political public art can invoke simultaneously, yet potentially unevenly. The politics of æffects reveal contestations around public art in urban planning contexts and policies, public communication, and reception. They foreground intended inclusions vs. systemic exclusions (politics of effects) and the emanating impacts on urban belonging vs. alienation (politics of affects). While much public art scholarship accentuates its alleged positive benefits, we attend to the (oft-ambiguous) negative, conflict-attuned æffects of public art. Ultimately, we advocate for an intersectional approach to restor(y)ing urban justice through public artivism.