London can be geographically defined in a number of ways; the situation was once open to periodic legal debate. At London’s core is the small, ancient City of London which is commonly known as ‘the City’ or ‘the Square Mile’. London’s metropolitan area grew considerably during the Victorian era and again during the Interwar period, but expansion halted in the 1940s because of World War II and Green Belt legislation, and the area has been largely static since. The London region of England, also commonly known as Greater London, is the area administered by the Greater London Authority. The urban sprawl of the conurbation — or Greater London Urban Area — covers a roughly similar area, with a slightly larger population. Beyond this is the vast London commuter belt.
London Areas
Forty percent of Greater London is covered by the London postal district, within which ‘LONDON‘ forms part of the postal address. The London telephone area code covers a larger area, similar in size to Greater London, although some outer districts are omitted and some places just outside are included. The area within the orbital M25 motorway is sometimes used to define the “London area” and the Greater London boundary has been aligned to it in places. Greater London is split for some purposes into Inner London and Outer London. Informally, the city is split into North, South, East, West and often also Central London.
The Metropolitan Police District, city-wide local government area and London transport area have varied over time, but broadly coincide with the Greater London boundary. The Romans may have marked the centre of Londinium with the London Stone, still visible on Cannon Street. Nominal centre of London traditionally considered to be the original Eleanor Cross at Charing Cross, near the junction of Trafalgar Square and Whitehall. Trafalgar Square has also become a point for celebrations and protests.




