Although Charing Cross was constructed as the southern terminus of the Jubilee line, plans already existed to continue the line to the east towards Lewisham in south-east London.
Napriek tomu, že Charing Cross bola postavená ako južná konečná stanica Jubilee Line, už v tej dobe existovali plány na predĺženie trasy do juhovýchodného Londýna, do štvrte Lewisham.