of Cowpastures and one of few 1820s dwellings remaining on the Cumberland Plain. The homestead at Harrington Park is earlier than the Macarthurs' Camden Park (1840) and only a few years later than their Home Farm cottage, which replaced the rough hut at Belgenny. Although the Harrington Park homestead now shares its land with modern housing estates, it still retains sufficient grounds, farm buildings and improved pastures to demonstrate the style of living enjoyed by gentleman farmers in the early nineteenth century. This area at the edge of the Cumberland Plain represented a landscape where Europeans were physically and mentally comfortable. The large property owners who settled this area and built their impressive houses later were all recreating the situation of a county gentleman in the British Isles. The natural landscape of the Camden/Narellan area reminded these settlers of home and their own enhancement of their grounds increased that similarity. Harrington Park homestead is significant as a fine example of an upper-class colonial society's model of a Gentleman's Estate from an era when this model was taken seriously. Its perpetuation illustrates the interdependence of pastoral, mercantile and estate modes of life in the nineteenth and twentieth centuries. Harrington Park is a good representative example of a gentleman's estate from 1817 (granted in 1815). The continued adaptive reuse of the residence and the outbuildings is an important part of Harrington Park's history. The place has a strong or special association with a person, or group of persons, of importance of cultural or natural history of New South Wales's history. Harrington Park homestead is of State significance for its association with members of the ruling class in early NSW. The grantee William Douglas Campbell was a well-known trader who established the salt pork trade with Tahiti. He was a partner of John Macarthur whose properties were at neighbouring Camden but later earned favour with Governor Macquarie for his part in rescuing the English missionaries from Tahiti. The Harrington Park homestead complex is significant for its strong associations with the familial dynasties of the Campbells (1810s–1850s), the Rudds-Brittons (1870s–1920s) and the Fairfaxs (1940s–2005). The homestead was established and developed initially by the Campbell family who held the property for almost 40 years until it was sold in 1852 and used as a country house by a number of owners. The homestead complex is significant for its associations with the squatting age, established when