 The fort remained as headquarters of South Australia 's permanent military force until the 1890s and as late as 1895 there were still plans to upgrade the 64 @-@ pounder armament , though without result . By 1901 the fort was manned on a caretaker basis only and no permanent forces were stationed . The Federal Government assumed responsibility for South Australian defence in 1903 and took over the fort . Though Glanville by then had no significant defence role , the state received £ 14 @,@ <unk> in compensation . From that point its significance was not defence related but as the first and best preserved 19th @-@ century fortification in South Australia . 
