The house was built to demonstrate the properties of Bath Stone as a building material. The design followed work by Andrea Palladio and was influenced by drawings originally made by Colen Campbell for Wanstead House in Essex. The main block had 15 bays and each of the wings 17 bays each. The surrounding parkland had been laid out in 1100 but following the purchase of the land by Allen 11.3 hectares (28 acres) were established as a landscape garden. Features in the garden include a Palladian Bridge which is also Grade I listed. Prior Park Landscape Garden is now owned by the National Trust.