New Southgate Gas Works

New Southgate is a largely residential suburb of North London that has portions in each of three London boroughs - Barnet, Enfield and Haringey. It broadly aligns with what used to be called Colney Hatch. 

The new name was adopted in order to distance the district from the lunatic asylum, built in 1851, with which Colney Hatch was once synonymous. There was little here until the arrival of the Great Northern Railway.

To the south of this was built, in 1858, the New Southgate Gas Works. The works ultimately included three gas holders, the largest of which (pictured) was built in 1912, hard by the North Circular Road (opened 1910, completed about 1930). 

The works closed in 1972, and the two smaller gas holders were dismantled. The remaining holder was decommissioned in 2001, but survived until 2020, when it was dismantled by Erith Demolition, for National Grid.