Help elderly downsize, says Demos
12 September 2013 Last updated at 07:19 BST
Up to three and a half million homes could be freed up by people over the age of 60 moving into retirement properties, according to a new report.
The research by think tank Demos, funded by the Home Builders Federation, says there is a big shortage of new properties for older down-sizers, and those needing more care and support.
It says more retirement homes are needed and if built, would help others move up the housing ladder.
Mike Sergeant reports.