Inner London's GDP per head was 328% of the European Union average in 2010, compared with 70% in west Wales - the biggest gap in any EU state, said the European Commission's statistics agency Eurostat. Among the next eight largest UK cities, only one other, Bristol, has a GDP that is above the national average.

In 2013 it was estimated that in property terms London's top 10 boroughs were worth more than all of Northern Ireland, Scotland and Wales combined. London's housing stock is worth as much as Brazil's annual GDP, estate agents Savills reported in January 2015