No rent rises in the near future as European tenants return to London

Mayfair is "the ultimate destination for high net worth renters," says Tunstall Property, "followed by Knightsbridge and Belgravia respectively." Marylebone, however, comes out on top for rental investments.

The prime lettings market has "picked up" in the first half of the year, says Savills, as a slow-but-steady economic recovery drives confidence and employment.