Enfield Lock is recorded thus in 1710, earlier as Norhtlok 1355, The Locke 1657, 'the (northern) lock or river barrier (near Enfield)', from Middle Englishlok.
History
Canal & River Trust offices
A lock on this site has been extant since 1725. The present day structure was re-built in 1922. At the lock are red brick cottages and a Lee Conservancy Board toll office of 1889. Below the lock, a water maintenance depot, with clock turret on the cruciform planned office building of 1907.