 A bureau plat by the Dutch-French maker Bernard II van Risamburgh which once stood in Cassiobury's Inner Library was acquired by the Elisabeth Severance Prentiss Collection of the Cleveland Museum of Art; the museum also holds decorated fittings from the house by Grinling Gibbons.When the Cassiobury Estate was put up for sale, Watford Borough Council purchased the park land to use for public amenities, and today a large area of the Cassiobury grounds now form the public Cassiobury Park.The site of the house lay in the area of land which was sold for housing development and is now occupied by the residential properties which lie between Temple Close and Parkside Drive.