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The gas works were based at Bittacy Hill, Mill Hill.
1862 – Formed as a non-statutory company. 
1871 – Became statutory by Parliamentary Order. The gas works were based at Bittacy Hill, Mill Hill.
1895 – An additional Parliamentary act granted the company further powers.
1937 – Came under the control of the South Eastern Gas Company. 
At this time it served 11 square miles including Finchley, Hendon, Mill Hill and parts of Golders Green and 33,500 customers.