More than 5,000 Londoners moved to Brighton and Hove in just one year, according to an analysis of official figures.
The scale of the migration from London, fuelled in part by high house prices there, was set out in The Guardian newspaper today (Saturday 30 December).
Birmingham was the only place where a higher number of people settled after leaving the capital.
And the report said that London councils were also placing hundreds of homeless people in other areas.
The newspaper said: “The trend is causing social tensions with incomes branded DFLs – down from London – by locals who resent the impact on house prices when property-rich arrivals outbid each other.”
Hove MP Peter Kyle has spoken on the subject in the House of Commons.
The Guardian report quotes Oxford University professor Danny Dorling describing the damage done to communities by the scale of “internal immigration “.
He said: “Creating a sense of community again will take a long time and requires two or three generations to be able to stay in one place.
“The immigrants who have the greatest effect on life in England are internal immigrants, English-born affluent people with a large deposit.”
The report added: “The wider internal migration data reveals some notable well-worn longer migration routes.
“People leaving Hackney were more likely to head to Bristol than anywhere else while people leaving Kensington and Chelsea were most likely to end up in Oxford.
“And you are more likely to bump into a new DFL from Lambeth in Brighton than from any other London borough.”
The article, which was published online yesterday, can be read here.