Surrey
From Tardis Wiki, the free Doctor Who reference
Surrey was a county of England. Heathrow Airport was in Surrey. (DW: The Visitation (TV story))
One of the sections of Starship UK was Surrey. DW: The Beast Below)
Behind the scenes
Paul McGann, Katy Manning, Bonnie Langford and Nicola Bryant were all born in Surrey. The Surrey Heathland was used to double for the Peak District in Derbyshire in Doctor Who and the Silurians.