The house is part of the original Frogmore Estate granted to Mary Putland, daughter of Governor William Bligh, in 1806. It was built by her son Maurice O'Connell around 1840. In the 1930s when the property was owned by Alan and Laura Williams. Werrington Park was established by the NSW Child Welfare Department as a home for intellectually disabled State Wards in 1954. The site is now the northern campus of the Western Sydney University and the house has since become the Chancellory office and has been renamed Frogmore.
