William Coles Finch stated that the post mill was originally built at Sevenoaks.[2] However, the mill may have been built on site c.1804, when it was advertised for sale in the Kentish gazette of 25 September 1804.[3] In 1880, it was joined by the smock mill that was moved from Farningham and which survives today.[2] West Kingsdown Windmill was built in the early nineteenth century at Chimham's Farm, Farningham.[2] The mill was restored externally in 1960 by Thompson & Son, Millwrights of Alford, Lincolnshire[4] at a cost of £4.400.