The station, then named The Hale Halt, was not opened until 11 June 1906, on the single track from Finchley Central to Edgware.

[1] The whole line ran from Finsbury Park to Edgware via Highgate with branches to Alexandra Palace and High Barnet.

[2] Works began in the late 1930s and were at an advanced stage, with a second track laid between Finchley Central junction and Mill Hill (The Hale) when they were interrupted by the Second World War.

[1] The section of line between Finchley Central station and Edgware was closed to passenger services on 11 September 1939.

The site of Mill Hill (The Hale) station was covered by material excavated for the construction of slip roads to the nearby section of the M1 motorway.