This plan is contained within records held by Hertfordshire Archives relating to the Oxhey estate, the property of the Bucknall and Estcourt families, 1670-1888.
The Estcourt family were known to be living at Shipton Moyne, Gloucestershire from 1303. Walter de la Estcourt held half the fee of the manor of Estcourt. Since that date the size of the family estates increased enormously.
The family acquired land in Oxhey came to the family through the marriage of Thomas Estcourt to Jane, daughter of Viscount Grimston on 6 October 1774. Thomas died on 2 December 1818 at age 70