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 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. Smyth was succeeded by his second son, also John, who followed his father by marrying another Grafton daughter, Lady Elizabeth Fitzroy. In 1837 their son, John George, employed Anthony Salvin to extend the house, adding an attic storey, a porch, an extension to the north, and a billiard room. His son, George John, was the last Smyth squire of Heath Hall, letting it in 1882. On his death, his nephew sold the property to Lord Halifax, Foreign Secretary at the time of the Appeasement crisis who owned it until 1938. The hall remains privately owned and is used as the corporate headquarters of a communications company.
Architecture and description
Carr incorporated the original early 18th century house into his rebuilding, using it as the central block of his two-storeyed, 11-bay reconstruction. The hall is built of ashlar with slate roofs. The interior includes rococoplasterwork of a quality which Historic England considers surpasses anything Carr undertook elsewhere. Ruth Harman, in the 2017 revision to Pevsner'sYorkshire West Riding: Sheffield and the South describes the drawing room as "one of Carr's finest spaces". The architectural historianJill Allibone noted the Victorian extensions to the hall carried out for Colonel John George Smyth in 1837–1845. Harman criticises Salvin's attic additions, suggesting that they destroyed the "hierarchy of roofline". Heath Hall is a Grade I listed building. The adjoining pavilions have their own Grade I listings, as does the hall's former brewhouse, now a separate private residence. The hall's flanking walls and gate piers are also listed Grade I. The stables are Grade II*. The grounds of the house, and those of other on the heath are also registered.
