Living like London's super-rich
30 January 2012 Last updated at 06:40 GMT
London has always attracted the super rich - in the 1970s it was the oil money from the Gulf. In the 1980s it attracted Asian industrialists and financiers and then Russian Oligarchs.
Even with a global economic downturn, the city is still benefitting, as BBC's Aaron Heslehurst has been finding out.