Sydenham
Sydenham was a suburban district of London. Gallows Gate Road was located there.
Residents of Number 1, Gallows Gate Road included Robert Mann, Mrs Mann, Major Wooley, Clive Plympton, M. Sillington, Miss Gibbs, and Bertha Baxter. The Tenth Doctor also lived there for one day in 1940. (PROSE: Number 1, Gallows Gate Road
By the 1890s, the Crystal Palace was located in Sydenham. (AUDIO: A Spoonful of Mayhem, COMIC: The Crystal Throne)
On New Year's Eve 1999, Ben Jackson told the Second Doctor, Polly Wright and Jamie McCrimmon stories about the pub that he was running in Sydenham. (PROSE: That Time I Nearly Destroyed the World Whilst Looking for a Dress)