 Much of the building material salvaged from the house, along with some interior fittings, were used to build a new house of the same name in Bedford, New York.The expansion of London's railways played a significant part in the demise of Cassiobury House.The incursion of the Metropolitan Railway into Hertfordshire reached Watford in 1926 with the opening of Watford tube station and the Metro-land building programme was at its peak.