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House built by the Grand Junction Canal Company for the Collector of the Coal Duties on the Grand Junction Canal.

The iron marker at the to the right of the gate marked the point on the Grand Junction (now 'Union') Canal at which duty became payable on south-bound cargoes of coal. The proceeds were used to help finance numerous projects in London, including, in the 19th C., the northern and southern outfall sewers, work that was largely responsible for wiping out cholera in the capital. In 1830, the rate of duty was 1s 1d (5.5p) per ton; the duty was abolished in 1888.