Sanderstead railway station is on the Oxted Line in the London Borough of Croydon, 1 mile from Sanderstead village. It is in Travelcard Zone 6, 12 miles 23 chains from London Bridge. The station is managed by Southern.
On the up platform is a ticket office, staffed for most of the day, and a self-service ticket machine is outside the station on the up side: there is no PERTIS machine. Purley Oaks, also in Travelcard Zone 6, is nearby.
Wikipedia https://en.wikipedia.org/wiki/Sanderstead_railway_station
Coordinates 51°20'54.218" N -0°5'36.452" E