New data published by the Office of National Statistics (ONS) reveals that 3.4 million young adults lived with their parents last year. Around two thirds of those living at home are men.
The startling figure of young people not living in a home of their own is a 24 per cent jump from 2008.
Average house prices across the UK have risen by 23 per cent in that time.
Last month The Big Issue reported that families with a sole full-time bread-winner would be forced to spend more than 30 per cent of their pay on rent in 320 local authority areas. That is 98 per cent of the entire country.
Shelter has called for more social housing to bring down soaring rents and house prices which block single people and low earners from moving to new homes.
ONS figures published this week also showed cohabiting couples were the fastest growing type of family over the past decade.