Insecure housing has long-term effects on both individuals and communities, it's impacting the social fabric of countries around the world. Corporations buying up housing stocks are further adding to the pressure. In rich and poor countries alike the cost of housing is outstripping growth in incomes. As a result, more than 100 million people have been made homeless, according to the UN. While more than 1.6 billion lack adequate housing and essential services. We also explore some possible solutions. But the big question mark hanging over the future of the sector remains political will.