evolution or pattern of Queensland's history. Toowoomba South State School (established in 1865 as Toowoomba National School) is important in demonstrating the evolution of state education in Queensland and the associated evolution of government education architecture. One of the oldest public schools established in Queensland, Toowoomba South State School retains a significant complex of buildings and landscape elements that illustrate the development of government education philosophies from the 1880s to the 1950s. Reserved for school purposes in 1853, the important buildings and landscape elements from the 1880s to the 1950s demonstrate the growth and development of Toowoomba as a major regional centre in Queensland. The place demonstrates rare, uncommon or endangered aspects of Queensland's cultural heritage. The open-air annexe at Toowoomba South State School, which remains relatively intact, is rare as one of the few surviving examples of this once common type. The Oslo Lunch Room, which also remains relatively intact, is and has always been uncommon as only a few buildings were built to this standard design and survived subsequent periods of development and change. The place is important in demonstrating the principal characteristics of a particular class of cultural places. Toowoomba South State School is important in demonstrating the principal characteristics of Queensland state schools, comprising a complex of buildings constructed to standard designs by the Department of Public Works, and standing on a large, landscaped site with buildings positioned to allow natural ventilation and daylighting of the interiors. The place retains good, representative examples of standard government designs that were architectural responses to the prevailing government educational philosophies. In particular, the standard designs represented at Toowoomba are: the playshed with its open sides, hipped timber-framed roof form supported on braced, timber posts and fixed timber perimeter seating; the open-air annexe with its timber-framed and clad construction, west facing verandah, large single classroom that is well ventilated and daylit, timber linings and iron tie rod; the Oslo Lunch Room with its timber-framed and sheet and battens clad construction, north facing verandah, south-facing fenestration and interior sheets and battens linings; the main building with its neo-classical styling, three-storeyed form, high-quality design, materials and construction, plan layout with north facing corridor, teacher's rooms, hat and cloak rooms, south facing classrooms that are well ventilated and daylit and understorey play space; and the Wadley Wing with its high-set form, gable roof, composite structural system and cladding, north facing verandah, south facing