The paper gives an overview of the development of the main elements which various attempts at planning in the twentieth century had to face up to: the urbanisation of increasingly greater proportions of the population for which the quantitative (demographic) and qualitative (elements of the urban form) framework is given. The first part schematically reconstructs the demographic trends for the city since the middle of the twentieth century, when the urban explosion commenced which brought the population of the Egyptian capital up from 2.2 million in 1947 to twelve million today. The second part looks at the distribution of the population in space, identifying the main elements that characterise the present day urban form of the metropolitan area.
