Croydon was located in Greater London. Sarah Jane Smith used to live in South Croydon. (TV: The Hand of Fear) Torchwood One maintained a storage facility, the Antebellum, there. (AUDIO: War Chest)
Yaz took Kate Stewart, Ace, Tegan Jovanka, Graham O'Brien to Croydon whilst the Thirteenth Doctor was recovering from the Spy Master's attack on her. (TV: The Power of the Doctor)
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