This paper describes an agent-based model of socio-spatial segregation, result of a synthesis between « Schelling’s spatial segregation model » and a demographc model of dependency between household fertility rates and socio-economical status of their descendants. The resulting model shows a way in which a spatial segregation pattern can emerge from an initially – spatially as well as socially – homogenous population of households. Further on, the model shows a form of retroaction of spatial segregation on social polarity, which proceeds from a spatially inhomogeneous mechanism of revenue-taxes.