archaeological evidence of the previous building is likely to remain. The outbuilding was located on or near the existing driveway, a development which is unlikely to have disturbed any underground deposits. The original basement/cellar is thought likely to have been filled in, possibly with materials from the old cottage and, therefore, potentially in situ. Archaeological deposits have been preserved under more modern buildings in the area generally and therefore it is considered highly possible that archaeological evidence survives despite no formal archaeological assessment. Modifications and dates 1806-07 - roof and floor repaired and two rooms added by Bligh -1815 - repairs and improvements made to the cottage -21 - building demolished early 1920s - existing building constructed on site Heritage listing The site and its views have outstanding state significance as evidence of the earliest development of the Hawkesbury district, its initial role as the Commandant's cottage quickly establishing its symbolism as an important representation of the presence of government and military control in the district. The high potential of existing archaeological features and deposits in a site where key elements in shaping the development of the district have converged - the arrival of the man who shaped the development of the district (Macquarie), the presence of the cottage on a site which captured Macquarie's aesthetic interest and the role of the cottage in trips to name and mark out the five Macquarie Towns - creating a landmark site in the historical development of the site representative of the birth of the Hawkesbury district as it is understood today. It is likely to be the site of one of the earliest Government Cottages constructed outside the Sydney colony. Government Cottage Archaeological Site was listed on the New South Wales State Heritage Register on 4 February 2011 having satisfied the following criteria. The place is important in demonstrating the course, or pattern, of cultural or natural history in New South Wales. The site has state significance as the base for Governor Macquarie's travels and activities in and around the Hawkesbury District, in particular while he marked out the sites of the five Macquarie towns, Windsor, Richmond, Wilberforce, Castlereagh and Pitt Town. It has state significance as the location of one of the earliest government buildings established at Windsor as well as one of a series of buildings constructed to house members of the military establishment in the locality. The location has