This article uses data from the Survey of English Housing (SEH) 1993/4 in order to investigate patterns of residential mobility in relation to social housing in England. Such an analysis provides an insight into the contemporary dynamics of residualisation. Hitherto, much of the analysis of residualisation has, quite properly, concentrated on the operation of the Right to Buy legislation in the process of social exclusion. However, this article argues that the process of residualisation has not been due just to changes in the tenure of dwellings, it has also been due to the intensification of processes of residential movement by people which can be traced back to at least the mid-1970s. As the number of dwellings sold through the RTB declines, the movement of people is again becoming the primary mechanism through which residualisation operates. The article also examines patterns of movement within the social rented sector. It concludes that as the sector has become smaller, the rate of mobility within it has increased. This increased rate of mobility is due to a number of factors, but is primarily a function of the demographic profile of tenants in the social rented sector. The factors which predispose certain types of household to be mobile within the sector are examined.