Marble Hill House was built in 1724–1729 by Henrietta Howard, the mistress of King George II, to the designs of the architect Roger Morris in collaboration with Henry Herbert, 9th Earl of Pembroke, one of the "architect earls". Pembroke, then Lord Herbert, based the design of Marble Hill to a large degree on Andrea Palladio's 1553 Villa Cornaro in Piombino Dese, Italy, and thus incorporated a cubic saloon on the first floor or piano nobile. Villa Cornaro also served as a model for plantation houses in the American colonies, examples being Drayton Hall in Charleston, South Carolina, and Thomas Jefferson's initial version of Monticello. It was in other respects an adaptation of a more expansive design by Colen Campbell. It is set in 66 acres of parkland known as Marble Hill Park. The Great Room contains lavishly gilded decoration and five capricci paintings by Giovanni Paolo Pannini. Marble Hill House also contains a loaned collection of early Georgian furniture and paintings as well as the Chinoiserie collection of the Lazenby Bequest. It was located a few miles away from Kendal House, another Palladian property built around the same time for a royal mistress, Melusine von der Schulenburg, Duchess of Kendal who had been the long-term lover of George I. Both Alexander Pope and Jonathan Swift were regular guests at the house during the lifetime of Henrietta Howard. In the late 18th century the house was rented by the Prince Regent for his mistress, Maria Fitzherbert, so the two could continue to meet in private. in Dorset, based on Marble Hill House Shortly after its building the architecture of Marble Hill House became widely known from published engravings, and was widely admired for its compact plan and tightly controlled elevations. Its design was soon copied elsewhere, rarely in the 1730s and 1740s but more commonly thereafter, and provided a standard model for the English villas built throughout the Thames Valley and further afield, for example New Place, King's Nympton, Devon, built between 1746 and 1749 to the design of Francis Cartwright of Blandford in Dorset. in Marble Hill House An archeological investigation found evidence of what has been described as a bowling alley next to the house in 2017. However, it is likely that game resembled boules as much as bowling and the "alley" does not resemble the modern concept of a bowling alley. The main evidence that the area was used for some sort of bowling rests on contemporary plans. The house is now owned by English Heritage, which acquired it in 1986 following the abolition of the Greater London Council. Its extensive grounds are known as Marble Hill Park and provide many leisure facilities including rugby and hockey pitches, a cricket pitch and nets, tennis courts, and a children's play area. In 2015, English Heritage won a Heritage Lottery Fund grant to develop Marble Hill House and its park in order to improve its presentation and the associated leisure facilities. As part of this project Historic England made a range of landscape investigations, including geophysical surveys, aerial photography and lidar mapping, analytical earthwork survey, coring and vegetation analysis to create a clear picture of the development of the Marble Hill landscape from the 17th century onwards.
