like the graving dock, or relocating supporting companies and industries like Thales). Most of the potential locations for a replacement base would require large-scale, ongoing dredging works to allow access to large naval ships, and have narrow access channels which could be easily blocked in wartime. Historic buildings and structures The first naval buildings on the site were minor structures, but in the 1880s the Admiralty (with financial incentives from the Government of New South Wales) began to invest more heavily in the site as a base for the Royal Navy in the southern hemisphere. A number of sizeable buildings were constructed (several designed by James Barnet) providing accommodation, office space, stores of various kinds and a sizeable steam engineering factory. These were later taken over by the Royal Australian Navy, and most remain in use today. Heritage listings Garden Island has a number of heritage-listed sites, including: Cowper Wharf Roadway: Sydney Harbour Naval Precinct Gallery List References Bibliography External links Fleet Base East Sydney localities Buildings and structures in Sydney History of Australia (1788–1850) Maritime history of New South Wales History of New South Wales Tourist attractions in Sydney Shipyards of New South Wales