There were 618,000 more young adults living with their parents in 2015 than in 1996 – 3.3 million compared with 2.7 million.
In total, nearly half of 20 to 24 year olds and a fifth of 25 to 29 year olds are currently living with parents. For 30 to 34 year olds, this figure was less than one in 10.
In comparison, the percentage of young adults owning their home decreased from 55% in 1996 to 30% in 2015 for 25 to 29 year olds; and from 68% to 46% for 30 to 34 year olds.
In 2015, 91% of householders aged 20 to 24 were living in rented accommodation.
Only 9% of 20 to 24 year old householders owned their homes either outright or with a mortgage or loan in 2015, down from 30% in 1996.
The ONS attributed the rise in adult children living at home to a rising delay in getting married and having children, increasing numbers of young adults choosing to stay in education for longer, and rising house prices and deposits.
