Central London

Central London was the city centre of London adjacent to East London. (TV: The Caretaker) It included at least part of Westminster. (TV: Aliens of London)

The Circle line on the London Underground network encircled the very heart of London. (TV: The Web of Fear) Stops included Westminster, and both Cannon Street and Monument (PROSE: "London Underground") which were located in the City of London. (TV: The Lie of the Land)

History
In 2005, all of Central London was closed off following the destruction of Henrik's. (TV: Rose)

In 2006, a Slitheen craft crashed into Big Ben before landing in the River Thames in Central London. (TV: Aliens of London)

London was gridlocked at its city centre when the 456 arrived in 2009. (TV: Children of Earth: Day Three, Children of Earth: Day Four)