Queenslander architecture is a modern term for the vernacular type of architecture of Queensland, Australia. It is also found in the northern parts of the adjacent state of New South Wales and shares many traits with architecture in other states of Australia but is distinct and unique. The form of the typical Queenslander style residence distinguishes Brisbane's suburbs from other capital cities.
The type developed in the 1840s and is still constructed today, displaying an evolution of local style. The term is primarily applied to residential construction, although some commercial and other types of construction are identified as Queenslander.
Queenslander buildings are primarily of timber construction and can be low or high-set, one to two storeys. They are typically "tripartite" in sectional composition; underfloor (stumps), primary rooms (can be two levels), and roof. All have one or more veranda spaces, a sheltered edge of the building that is typically only part-enclosed and used as another living zone. This consideration for climate is the defining characteristic of the Queenslander type.
The raising of the main living spaces off the ground can be seen as both a stylistic and practical device. The vertical "stumps", initially of timber, allow the building to "float" above the terrain. Queenslanders all have this underfloor area that is used to cool the building through ventilation and also for protection of the main structure from termite attack and other pests. The stumps also help to overcome any variations in the terrain that would normally require earthworks to flatten for construction and allow for the natural flow of water across the terrain in the event of excessive rain and downpours. The underfloor space is often high enough for additional uses such as storage, carport or even as extra living area in the cool, dark spaces beneath the building. The underfloor area was sometimes decoratively screened at the perimeter with timber battens. Another advantage of being constructed on stumps is that the buildings are highly adaptive. It is relatively easy to raise, lower, reorient or completely relocate Queenslanders.
The main living areas of the house, being raised from the terrain, are a series of rooms on a platform floor. Traditionally, planning and fenestration encouraged cross-ventilation for passive cooling in a variety of innovative methods including fanlights, ceiling roses, and alignment of doors and windows to allow uninterrupted air flow. The verandah is the most typical inclusion in the plan and can be used day and night as a semi-external living space. In Brisbane, many people have tables and chairs for dining and a daybed or 'sleepout' on their verandah. Revolving tin cylinders placed on roofs allow for hot air to be drawn out of ceiling spaces.