Low income housing in a rapidly urbanizing Pakistan. Pakistan is a rapidly urbanizing country. The proportion of its urban population was 15 percent at the time of independence. Now about 40 percent of the population of Pakistan lives in the urban areas. The population of most of the urban areas doubles in 20 year’s time. Housing provision for the urban poor is still an uphill task for the Planners of the 21st Century. The main difficulties are the low level of affordability of the poor for planned and decent housing and the lack of a culture of planned development in the country. As a result the informal sector builds unauthorized, sub-standard and environmentally hazardous housing usually called as slums or squatter settlements locally knows as Katchi Abadis.