North Charlton mill is a typical Northumberland estate watermill, finished with fine stonework and ranges of related buildings. It stands three storeys high. The wheel measures about 16ft in diameter and is 2ft 6in wide. It has caused a scratch on the mill wall, but there is also a scratch from a smaller wheel of about 12ft diameter. The smaller wheel is thought to have been the original wheel before the third floor was added in the mid 19th century. The earliest documentary evidence of a mill at North Charlton is in 1295, when Ralph fitz Roger gave his mills at north Charlton to William de Vesci with a right to force the tenants to use the mill. In 1827, George Hall is listed as miller and in 1855 it is Robert Hindhaugh. Ordnance Survey maps show a 'corn mill' in the 1860s and 1895 editions, but by 1923 there is no evidence of use.