of the function and layout of the homestead group. The underground water tank at Abbotsford is significant through its contribution to our understanding of the group as a whole. It is considered to be a potential source for archaeological research into the occupation phases of the site as domestic artefacts are often dropped into wells. Other sites are also considered to have archaeological significance, particularly into the earliest phases of the development of the property and the role of convicts. The location of the earlier Abbotsford bridge and crossing is significant because knowledge of its position contributes to the understanding of the siting of Abbotsford House and its driveway avenue plantings in relation to the Oaks Rd and Abbotsford Road. Abbotsford was listed on the New South Wales State Heritage Register on 2 April 1999. See also References Bibliography Attribution New South Wales State Heritage Register Picton, New South Wales Buildings and structures in New South Wales Homesteads in New South Wales Houses in New South Wales Farms in New South Wales Articles incorporating text from the New South Wales State Heritage Register