The New Gun Wharf was created in the early 19th century over the site of a former mill and mill pond. By 1821 New Gun Wharf contained a number of structures including the house of the Clerk of the Cheque, a Guard House, Match House, Spinning Shed and Ash House. By 1860 only the house of the Clerk survived, now called the 'Deputy Storekeeper's Quarters' (TQ 76 NE 463). By the first half of the 20th century, it had become the Ordnance Officer's Quarters. The building was extended during this period, to assume its current form, replacing an earlier service wing. During the 1940s the building was known as the Chief Ordnance Officer's Quarters or the Colonel's House. By the 1930s the wharf had two long buildings in the centre served by a railway with the older buildings around the sides of the wharf. The site went out of use in the late 1950s.