However, by the beginning of the 20th century, the area had been developed for housing and, on 9 October 1905, the District Railway (DR) opened a station to serve these new developments and in preparation for the opening of the Great Northern, Piccadilly and Brompton Railway (GNP&BR, now the Piccadilly line), then under construction.

[11] The former Formula One driver B. Bira, who was a member of the Thai Royal family, was found dead at the station on 23 December 1985.

The wooden benches on the platform with the station name along the back on enamelled metal panels are a unique feature on the entire London Underground.

[6] The name Barons Court is possibly inspired by the Baronscourt estate in County Tyrone, Northern Ireland, where Sir William Palliser, who built part of the area, may have had connections.

[10] The typical off-peak service in trains per hour (tph) is as follows: On 8 June, 1939, Kinematograph Weekly announced that exterior scenes of A Window in London would "be filmed at Baron's Court Underground Station and in Parliament Square."