The number of London households in temporary accommodation has risen by 50% in the past five years - that's according to a report by the London Assembly.
It says families are being placed into insecure homes indefinitely, with the Mayor being urged to step in and address the problem.
A spokesperson for the Mayor of London said: “The Mayor believes it is a disgrace that so many people across the country and particularly in London are forced to live in unstable, temporary accommodation, facing constant insecurity. He is using all the powers and resources he has to tackle this issue, from investing £1bn in council homebuilding, to providing £11m for councils to build high-quality temporary modular homes to help homeless families in the capital".
“But London councils face great difficulties finding somewhere for homeless households to live, and the Mayor is clear that the Government must step up by greatly increasing investment in new social housing, reversing its welfare cuts, and reforming the private rented sector to make it fit for purpose."