Seven years later, the MK&NKJR built an extension from a new junction station at New Beckenham to Croydon (Addiscombe Road), which again was operated by the SER.

Two years later, in October 1866, the current station built just north of the junction was opened.

The Mid-Kent line was electrified with the 750 V DC third rail system, and electric services commenced on 28 February 1926.

[8] After the Second World War and following nationalisation on 1 January 1948, the station fell under the auspices of British Railways Southern Region.

[9][10] Upon sectorisation in 1982, two passenger sectors were created: InterCity, operating principal express services; and London & South East (renamed Network SouthEast in 1986) which operated commuter services in the London area.

[12] Following privatisation of British Rail on 1 April 1994, the infrastructure at New Beckenham station became the responsibility of Railtrack, while a business unit operated the train services.

On 13 October 1996, operation of the passenger services passed to Connex South Eastern which was originally due to run the franchise until 2011.

Following a number of accidents and financial issues, Railtrack plc was sold on 3 October 2002 to Network Rail, which became responsible for the infrastructure.