London is the world’s most expensive city to live/work – Savills

Property prices in London and other global financial centres "are now, in many cases, fundamentally unjustified," says UBS. "The risk of a real estate bubble in these cities has risen sharply."

Management consultancy ranks London in first place for economic clout, ease of doing business, education, technology readiness, location & access

Monaco, Hong Kong and London are the most expensive places to buy a single square metre of prime residential real estate, according to the latest sums from Knight Frank and Douglas Elliman.