[2] The station ticket hall is located beneath Gants Hill roundabout and reached via pedestrian subways.

The station is known for its distinctive architecture featuring barrel-vaulted halls at platform level designed and created by Charles Holden.

[12] As part of the 1935–40 New Works Programme, the Central line was to be extended from Liverpool Street to south of Leyton where it would connect to and take over passenger operations on the London & North Eastern Railway's (LNER's) suburban branch to Epping and Ongar in Essex.

Three new stations, which include Gants Hill were built to serve the new suburbs of north Ilford and the Fairlop Loop.

[13][18] Construction began before 1937[11] and most of the tunnelled section was completed by 1940 but delayed due to the outbreak of the Second World War and eventually came to a halt in June 1940.

[27] It is accessed via a series of pedestrian subways and has no street level buildings, although low structures on the roundabout sit above the ticket hall and provide daylight and ventilation.