Social justice and sustainability: Private law’s moment in the European green transition

Abstract The ecological transition needs a shift in the definition of the role of the state from a market-correcting to a market-steering actor. This transformation inevitably reverberates within private law, whose institutions participate in distributing the social and economic burdens of sustainability policies. Focusing on the housing sector as a paradigmatic site of tension between environmental imperatives and social justice, the paper examines how measures aimed at improving the energy performance of buildings and promoting urban greening can generate regressive distributive effects, including rising housing costs, green gentrification, and heightened risks of indebtedness and displacement for vulnerable groups. Against this background, the paper argues that private law must be reconceptualised as a tool capable of mitigating these structural inequities.