Originally the land was the grounds of a 12th-century priory dedicated to St Sepulchre and built in 1124 but this was closed down by King Henry VIII during the dissolution of the Monasteries.
[2] During that year the Great Western Railway company were allowed to build an embankment to extend the line to Warwick station which was built in 1852 at the north-east of the estate.
In 1926 Alexander W. Weddell, an American diplomat and his wife Virginia, a wealthy woman in her own right, purchased the property after seeing the advertisement that Priory House was to be demolished.
(Part of the park is owned by Warwickshire County Council but managed by WDC) There is very little evidence of the previous buildings in existence.
In the 1970s Warwickshire County Council moved its record offices to the eastern part of the estate into a purpose built building.