Coulsdon South railway station serves Coulsdon in the London Borough of Croydon, and is in Travelcard Zone 6, on the Brighton Main Line. It is measured from . The station is served by Southern and by ThamesLink. It is the most southerly mainline station in London. History Coulsdon is on a stretch of line between Croydon and Redhill which the UK Parliament insisted should be shared by the London and Brighton Railway (L&BR) route to Brighton, and the South Eastern Railway (SER) route to Dover. As a result, there have been a number of railway stations at Coulsdon. Coulsdon South This station was opened by the South Eastern Railway (SER) on 1 October 1889. The line is on a steep gradient climbing towards Merstham Tunnel. It is from , and has two platforms each long enough for a 12-coach train. It was originally called Coulsdon and Cane Hill, referring to the nearby psychiatric hospital: a covered way connected the station to the hospital. By the 1960s, the covered way had been removed. Ticketing The station remains staffed for most of the operational day, with a booking office located on the up (west) side of the station. At the entrance to the ticket office from the station approach road, there are two self-service ticket machines, one of which, most unusually, is wall-mounted. A PERTIS self-service 'Permit to Travel' ticket machine was previously provided here but has been removed. Automatic Ticket Barriers were installed at the station in spring 2011 Other stations in Coulsdon Stoats Nest for Coulsdon and Cane Hill (later Coulsdon North) was opened on 8 November 1899, by the LB&SCR on their Quarry Line which bypassed Redhill. It closed 3 October 1983. Smitham (later Coulsdon Town) was opened in 1904 by the SER on their Tattenham Corner Line and is named after another nearby settlement. This station was renamed from Smitham in 2011 as part of Southern Railway's new franchise agreement. This change was made as a result of a local consultation carried out by Croydon Council and it intended to better reflect the location of the station near Coulsdon town centre. Recent history In May 2019, work began to install a new accessible footbridge with lifts and tactile paving. The work was completed in August 2020 having been delayed due to the coronavirus pandemic. Services Services at Coulsdon South are operated by Southern and Thameslink using and EMUs.