The station originally opened on 1 May 1903, as part of a Great Eastern Railway (GER) branch line from Woodford to Ilford via Hainault.This "Fairlop Loop", designed to stimulate suburban growth had a chequered history and Barkingside station was temporarily closed to passenger traffic, due to World War I economies, from 21 May 1916 until 30 June 1919. As a consequence of the 1921 Railways Act, the GER was merged with other railway companies in 1923 to become part of the London & North Eastern Railway (LNER). Fullwell Cross takes its name from a mediaeval preaching cross that once stood there. Long before there was a church, monks from Barking Abbey would go there to conduct outdoor services for the farmers of Barkingside.
The station contains two platforms, one for each direction. Few alterations took place to the station upon transfer to the Underground. Barkingside station is a "Grade II" listed building, marking it as a structure of architectural significance. Probably designed under the direction of W. N. Ashbee, the GER architect, it is dominated by a substantial brick building, surmounted by a cupola. The interior is notable for the fine hammerbeam roof to the ticket hall. Both platforms retain the ornate canopies with the "GER" initials still visible in the bracketry. The station has payphones, toilets, a waiting room, bridge and car park.
Connections: London Bus routes 128; 150; 167; 169; 247; 275 and 462, and night route N8 serve the station. Furthermore, bus route 128 provide a 24-hour service.