The Metropolitan Railway opened from Chalfont Road in 1892 to a separate station named Aylesbury (Brook Street) adjacent to the GWR station. It closed in 1894 when services were diverted to the GWR station.
The Metropolitan Railway ran through trains from Baker Street to Verney Junction via Aylesbury and which operated until 1936. From 1948 to 1961 Aylesbury was the terminus of the Metropolitan’s main line, on which trains had to change between electric and steam locomotives at Rickmansworth. Following electrification from Rickmansworth to Amersham, Aylesbury stopped being served by London Underground trains.
The Great Central Railway reached Aylesbury in 1899 from Annesley Junction just north of Nottingham on its London extension line to London Marylebone. Until 1966 Aylesbury was an intermediate station on the former Great Central Main Line between London Marylebone and Sheffield Victoria and on to Manchester London Road via the Woodhead Tunnel. In 1966 British Railways closed the Great Central Main Line north of Aylesbury. Aylesbury was thus left with commuter services to London only.
