A sink estate is a British council housing estate characterised by high levels of economic and social deprivation. Such estates are not always high crime areas although there is a strong correlation between crime rates and sink estates in large urban areas. Thus, the Harefield estate on the edge of Southampton was a sink estate in the last quarter of the twentieth century even though its crime rate was significantly lower than that of inner city areas. In London, however, all the no-go areas (such as the North Peckham estate before its regeneration) are sink estates.