Boris Johnson said the Conservatives have "to recognise that the sheer global charisma of London is putting pressure on Londoners."
Addressing delegates at the Conservative Party conference, the London Mayor highlighted that average house prices are now six times average earnings in the capital.
"The pressure is really growing and it's intensifying," he added.
More top news
Overnight it will be cooler and fresher but most places will stay dry with a nippy start to Sunday.
X Factor contestant Raign seems to impress the Wembley audience with her own song even though Cheryl finds her "really annoying".
YouTube superstar Alfie Deyes got a sense of how far he has come when thousands of fans descended on his latest book signing in London.