The original hall, called Eshald House, was built for, and probably designed by, Theophilus Shelton. In 1709 the estate was bought by John Smyth, who had made a considerable fortune as a
wool trader. In 1754 his nephew, also John, commissioned John Carr to undertake a major expansion of the house. Work continued under Smyth's grandson, another
John, until completion in 1780. The resulting mansion is described by
Historic England as "a magnificent composition, one of [Carr's] finest houses". The Smyths established their place in society during construction, the grandson serving as
member of parliament for
Pontefract for 25 years, becoming a
Lord of the Admiralty, a
Lord of the Treasury,
Master of the Mint, and eloping with, and marrying the daughter of the
Duke of Grafton. ==Architecture and description==