The station is located to the west of the junction of Rayners Lane, Alexandra Avenue and Imperial Drive (A4090).

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

[10] The station, more a halt, was rebuilt, following the start of house building in the locality in the 1930s that saw passenger figures rise from 22,000 per annum in 1930 to 4 million in 1937 by a new station to a design by Charles Holden and Reginald Uren that opened on 8 August 1938.

[12] The station, now Grade II Listed by Historic England, 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.

[13] Metropolitan Line trains are able to terminate at Rayners Lane from the westbound platform either by a crossover to the east of the station or via a centre reversing siding to the west, under normal circumstances all westbound Metropolitan Line trains continue to the terminus of the branch at Uxbridge.