Warwick Avenue opened on 31 January 1915 on the Bakerloo tube's extension from Paddington to Queen's Park.

[7] The station is located at the junction of Warwick Avenue, Warrington Crescent and Clifton Gardens.

[8] There is no surface building and the station is accessed by two sets of steps to a sub-surface ticket hall.

A regular waterbus service runs from nearby Little Venice along the Regent's Canal; during the summer months boats depart hourly towards London Zoo and Camden Lock.

The song "Warwick Avenue" by British singer Duffy makes reference to the station.