East Midlands Railway services from Leeds, Sheffield, Leicester and Nottingham run through at speed, but do not stop.

In the early 20th century, Walter Phillimore, who owned Radlett, built many houses, one of the first "commuter villages".

In Summer 2019 Radlett became part of TfL's Oyster card and contactless payment travel system.

In 1979, the station was rebuilt at a cost of £500,000 as part of the Midland Suburban Electrification scheme between St Pancras and Bedford.

[5] Speaking at the opening ceremony, British Rail London Divisional Manager, Harry Reed, expressed the hope that electrification would be extended to Kettering and then from Bletchley to Bedford.