William Rudd Snr, formerly a smallholder from Campbelltown, made his home there after his success with a much larger pastoral lease on the Murrumbidgee. The property was a manifestation of Rudd's upward social mobility. It is also significant for its twentieth-century association with Sir Warwick Fairfax, Chairman of John Fairfax Limited, the family company that had published the Sydney Morning Herald since 1841. Communicating with his office by telephone, Sir Warwick ran the paper while he lived part-time at Harrington Park and used the property as a retreat from his business life. While there, he created literary works including plays that were performed in the early 1950s and a book explaining his "modern, liberal philosophy" in the garden study. The Harrington Park homestead is significant for its associations with prominent architects including Marcel Weyland (b. 1927) who designed the Asian influenced garden study and pavilions linked to the homestead between 1957 and 1967. The earliest phase of the house has been associated with Francis Greenway but this attribution has yet to be verified. The estate has significance at the Local level as the location of the murder of Murdoch Campbell, nephew of Captain Campbell, by an escaping convict. This story has been passed down through the generations and has become somewhat of a local legend. The place is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales. Harrington Park homestead is of State significance for its ability to demonstrate the layout of an early nineteenth-century gentleman's estate with views and vistas afforded to and from the homestead over the landscape and important access routes. The Harrington Park has landmark qualities as the homestead, outbuildings and gardens are prominently located on a knoll which dominates the once rural landscape. The homestead complex, with its signal plantings of Bunya and Hoop pines, is visible from The Northern Road and sections of Camden Valley Way. Despite the residential development of much of the Harrington Park Estate, the homestead knoll and remnant cultural landscape is still easily discernable from the major access routes in the area of The Northern Road and Camden Valley Way. Harrington Park homestead's setting takes advantage of a commanding position in the landscape context of the Camden Valley. This selected position of the homestead shows an understanding of seventeenth- and eighteenth-century Arcadian and Picturesque European landscape ideals. The Homestead's siting was