The tube station has two ticket halls, one for each line on differing sides of the roundabout. The Northern line building has been demolished and rebuilt, and was reopened on December 12, 2003. It is connected to the mainline station. Services from the mainline station are run by Thameslink and South Eastern Trains.
The Bakerloo Line hall was opened on August 5, 1906, and a tunnel interchange to the Northern Line platforms provided a few days later on August 10, 1906. It was closed between November 9, 1996 and July 14, 1997.
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