Right-to-buy plans and forced sale of council houses will broaden housing crisis, according to Labour mayoral candidate Sadiq Khan.

The housing crisis that has seen hundreds of thousands of people in London struggle with soaring rents and rising house prices will broaden dramatically because of a sharp reduction in affordable homes, according to research.

Analysis of the government’s plans to extend the right to buy, and the forced sale of council houses in the housing bill, claims there will be more than 21,000 fewer affordable properties in the capital by 2020.