Clients have a great opportunity to cash up in London and buy in the country (if you know where to look), says Rachel Johnston of Stacks Property Search...

Seeing as it's LFW and all that, here's the Knight Frank team with a whistle-stop tour of where the fashionistas favour in the capital..

London is still the "most important" world city for the ultra-rich, says Knight Frank in its tenth annual Wealth Report.