In the 1920s the long-awaited seaside development began in earnest.
The Southern Railway (which had taken over the line upon the 1923 railway grouping) realigned the New Romney branch nearer the coast in 1937 and provided two intermediate stations - Greatstone-on-Sea and Lydd-on-Sea.
However, the Southern had been slow in reacting to the coastal development and the RHDR had already been operating from more conveniently-sited stations for the best part of a decade.
Furthermore, the pattern of services remained more or less the same until 1952 when it increased to nine services from Appledore to New Romney (including two through trains from Ashford), and four services on Sundays from Ashford.
In addition, two direct services from Charing Cross were laid on for summer Saturdays.

Following the electrification of the line to Dover in 1962 and the prohibition of steam on South Eastern metals, the New Romney branch was served by diesel-electric sets with either six-car or three-car units.
Although through services from Charing Cross ceased, services remained relatively regular with nine departures from Ashford and two from Appledore on weekdays.
The New Romney branch was listed for closure in the Beeching Report but survived until the Minister of Transport Barbara Castle announced her approval to close the Appledore to New Romney Branch and passenger services ceased on 6 March 1967.
In the 1920s the long-awaited seaside development began in earnest. The Southern Railway (which had taken over the line upon the 1923 railway grouping) realigned the New Romney branch nearer the coast in 1937 and provided two intermediate stations - Greatstone-on-Sea and Lydd-on-Sea. However, the Southern had been slow in reacting to the coastal development and the RHDR had already been operating from more conveniently-sited stations for the best part of a decade. Furthermore, the pattern of services remained more or less the same until 1952 when it increased to nine services from Appledore to New Romney (including two through trains from Ashford), and four services on Sundays from Ashford. In addition, two direct services from Charing Cross were laid on for summer Saturdays.
Following the electrification of the line to Dover in 1962 and the prohibition of steam on South Eastern metals, the New Romney branch was served by diesel-electric sets with either six-car or three-car units. Although through services from Charing Cross ceased, services remained relatively regular with nine departures from Ashford and two from Appledore on weekdays. The New Romney branch was listed for closure in the Beeching Report but survived until the Minister of Transport Barbara Castle announced her approval to close the Appledore to New Romney Branch and passenger services ceased on 6 March 1967.
New Romney and Littlestone-on-Sea railway station