The above article is a Statistical paradise, easily conjured up but very difficult to achieve. Yet housing is a necessity and it should be achieved for every family, irrespective who, where and how. The assumptions made about cities are based on the present trend and not the future possibilities. The estimate of US $25,000 for a decent home in cities(present cities) is very fallacious. As cities grow, land prices increase by leaps & bounds. First you need to fix the area for a decent home taking into consideration other social requirements of a groups. Assuming a family of 5 need at the least a 500 sq.feet of space, the land prices in a outer areas of Cities could cost 3 times more. Apart from finance, first you need to provide a regular job to at least one member of the family. People flock to cities primarily for this reason. The 9 or 10 or 15% unemployment which statistics display does not take into account the type of employment. More than 50% of employment is unstable, temporary. It is like the 100 days in a year employment guarantee for each family which the Government of India provides in rural areas. With such income background, obtaining finance for building a house may well be imagined unless Governments backed by rich nations could get free finances. Yes, it is possible to achieve the target if construction is taken up away from the cities, say at a distance of 100 or more kilometers from the city where land prices could be less. For this purpose, you need to achieve mobility i.e., transport systems which can transport people from such distances at least within the hour without any of the present day bottlenecks & gridlocks. Therefore, the basic requirements of housing for all is a permanent job and speed of mobility. Provide this and housing will come about by itself automatically.