The London Metropolitan area (Southeast metropolitan area, or London commuter belt) means the area located around the Greater London for which there is a transport network to reach the British capital every day to work. The term commuter belt refers to people who make daily round trip (to comute) between their home and their workplace. This area is part of the basin of London.
This area is different from the Greater London and the urban area of London.
The population of the London metropolitan area is 13.6 million people in 2012, making it the most populous metropolitan area in the European Union before Paris (12.3 million in 2012).