Richmond

Richmond was a location in south-west London. (TV: Revenge of the Slitheen)

Roughly to the west of Richmond was Heathrow, to the north-west was Ealing and roughly to the east was Wimbledon. (TV: Revenge of the Slitheen)

In the late 19th century, the First Doctor's ward, Duke David Warblington, accidentally burned down his home, Warblington Place. The Doctor and Barbara arrived by coach to find the house on fire, but were relieved to find David alive and well. (PROSE: The Duke's Folly)

In the 2000s, the London branch of Coldfire Construction, which was secretly operated by the Slitheen, built a technology block in a Richmond school, using it as a transducer to absorb energy from the Sun and destroy the Earth so they could sell it off. After Sarah Jane Smith foiled the Slitheen at Park Vale Comprehensive School, she called UNIT so they would clear up the Coldfire sites across the world. (TV: Revenge of the Slitheen)

Behind the scenes

 * A short scene which was deleted from the broadcast of The Day of the Doctor then released on the BBC Doctor Who website, featuring the War Doctor, the Tenth and Eleventh arriving at the Tower of London in ankle shackles, an exasperated War Doctor declares they haven't drawn breath "since Richmond".