Woodside is a small part of the London Borough of Croydon. The bit of Woodside that's not in Croydon is probably part of South Norwood. There's a green with a war memorial, Ashburton Park, and Woodside Tramlink station, which used to be National Rail station. It has the remains of a very tall doorway, apparently used for the passage of horses to a nearby racecourse, years ago.