Urban biodiversity and social inequalities in built-up cities: New evidences, next questions. The example of Paris, France

► Mean household incomes vary in presence of planned and unplanned urban green. ► Floral richness, ecological diversity and density are not correlated to household incomes. ► There is a relation between semi-natural spaces, landscapes and household profiles. ► Ecosystem services benefit more middle and working-class households than well-off ones. ► These finding are significant for putting Paris Biodiversity Plan in place.