The station passed to the Southern Region of British Railways on nationalisation in 1948.

When sectorisation was introduced in the 1980s, the station was served by Network SouthEast until the privatisation of British Rail.

In the 1970s, the station was redesigned by Nigel Wikeley in the typical CLASP manner, with a long and low design constructed from prefabricated materials.

[2] As part of the National Station Improvements Progamme (NSIP) new station buildings have been designed by engineers Sinclair Knight Merz and BPR Architects.

[3][4] Services at Ashtead are operated by Southern and South Western Railway using Class 377 and 455 EMUs.