The Northern line and Bakerloo line parts of the station were originally opened as two separate stations and were combined when the now defunct Jubilee line platforms were opened.
Nástupištia na trasách Bakerloo Line a Northern Line boli pôvodne otvorené ako dve samostatné stanice, ktoré boli spojené do jedného celku, keď boli otvorené dnes už nefunkčné nástupištia Jubilee Line.