[8] On 1 March 1910, an extension of the District line from South Harrow to connect with the Metropolitan Railway at Rayners Lane was opened enabling District line trains to serve stations between Rayners Lane and Uxbridge from that date.

The station was rebuilt between 1937 and 1939[9] to a design by Charles Holden which features the large cube-shaped brick and glass ticket hall capped with a flat reinforced concrete roof and geometrical forms typical of the new stations built in this period.

The Cavendish Pavilion nearby was a popular destination for outings in the first part of the twentieth century.

[10] At this time, a survey found that Eastcote had the second highest footfall in the Borough of Hillingdon, as well as high numbers of elderly residents and those with a long term disability.

[12] In 2023, Transport for London announced plans to review the potential for a lift at the station with the findings expected in late 2024.