Of importance to this station was the establishment of Folkestone Racecourse in 1898, which partly absorbed land once belonging to ‘’Westenhanger House’’. In response to the vast amounts of traffic generated on race days, it was left to the 1899-formed SE&CR to substantially upgrade the station’s capacity. The solution to this was interesting: in about 1905, construction of two completely new island platforms, situated to the west of the existing Westenhanger site, was undertaken. These virtually formed their own self-contained station, for they commanded their own signal box and lattice footbridge. The islands combined had four platform faces, and a footpath directly connected the railway with the racecourse. The provision of outer loops at these platforms ensured that race day trains did not block the main running lines for non-stop services. Re-signalling of the general Westenhanger station area brought a swift end to the aforementioned SER ‘’up’’ side signal cabin. As part of the expansion works, Saxby & Farmer was commissioned to erect a larger replacement cabin on the site of the very first signal box, at the western end of the ‘’down’’ platform. The station’s third signal box was virtually identical in design to the upper half of the cabin which still survives at Ryde St Johns Road, on the Isle of Wight, and its increased size saw that it occupied the entire section of the ‘’down’’ platform located west of the road bridge. This resulted in the removal of the ‘’down’’ side waiting shelter, and the erection of a new timber affair east of the road bridge. During the same works, the flat-roofed ‘’up’’ side platform canopy was replaced with an example with a downward-sloping roof.