"Many local markets actually have a stronger correlation with a region other than the one in which they are physically located," says Savills' Neal Hudson, as he re-draws the UK property market map.

With HSBC dropping bombshell plans to cut 8,000 jobs in the UK and mulling over whether to even keep its global HQ in London, these are worrying times for City workers.

You may or may not recognise this building, but one Kensington agent reckons it holds the key to determining which properties command the biggest premiums in the Hyde Park area.