Folkestone West was then opened in 1863, with a station named Cheriton Arch being provided between the two on 1 September 1884.

The name Radnor Park was adopted in 1886, and for a few years with just two platform faces, the station was rebuilt in 1890 to add a bay.

The station was rebuilt at the time of the route's electrification in 1961[2] with two island platforms, linked by a subway and with ramps leading up from the ticket office and concourse, which is itself above street level (an approach road and accompanying pedestrian ramp leads up from Cheriton Road).

[3] A replacement bus service was operation between the two stations, along with a modified timetable whilst repair work was carried out.

[4] The line reopened on 5 September 2016, as the work progressed faster than originally anticipated.