Not as a surprise, the highest price per square meter is in London. The prices here doubled between 2004 and 2016.

However, the difference between the lowest price per square meter in the UK (Blaenau Gwent in Wales – £777) and the highest (the London borough of Kensington and Chelsea – £19,400) is enormous. The main causes and some of the effects on the long term you can find in this article on PropertyWire.