From the Archives – Westralia Plaza


167 Westralia Plaza, located alongside Brookfield Place, was the first project in Western Australia to achieve a Green Building Council of Australia ‘Green Star’ certification, receiving a 4 Star rating for Office Design. The project comprises a twelve storey office and retail building accommodating 9800m² of A-grade office net lettable area and 760 m² of retail net lettable area, two levels of basement parking and a landscaped pedestrian plaza.

167 Westralia Plaza creates an iconic gateway to the existing Westralia Square building and Brookfield Place providing a significant pedestrian thoroughfare to the Convention Centre and public transport facilities to the south. The projecting bold sculptural form of the ‘ribbon’ façade cladding provides an interesting juxtaposition between this building and the adjacent Old Perth Boys School and Perth Technical College, whilst being of low scale and sympathetic in height and creating a precinct entrance of sensitive proportion. The broad plaza, set back from the eastern boundary, is respectful to the heritage buildings and creates a substantial civic avenue leading towards Westralia Square.

The ‘ribbon’ element creates a sense of playfulness and creativity along the eastern (plaza) façade and draws pedestrians towards the Entrance Foyer. This seductive form extends through the building to Mercantile Lane on the west façade, forming the high ceiling within the foyer space.

The Green Building Council of Australia ‘Green Star’ rating system is a holistic assessment of sustainable initiatives possible which recognises industry ‘best practice’ for environmentally sustainable office design. Key environmentally sustainable aspects of the design include:

  • Reduced operational energy use and greenhouse gas emissions in accordance with the criteria for ABGR performance;
  • The use of exterior sun screens, high performance double-glazing reducing heat loads on the building;
  • Flexible and highly efficient air-conditioning systems;
  • High efficiency light fittings, operated with automatic control through the Building Management System;
  • Materials were selected from low environmentally impacting sources. Additionally, materials requiring low maintenance and with known longevity were utilised;
  • Extensive bicycle parking and end-of-trip facilities for building occupants is provided;
  • Capture and re-use of fire-systems test water for irrigation;
  • Solar-powered hot water heating; and,
  • Enhancement of user comfort through the use of sustainable design features and elements such as shading devices, efficient lighting, improvement of indoor air quality. The clever planning permits most occupants to have close proximity to daylight.

167 Westralia Plaza has become a unique and iconic building with significant prominence on St Georges Terrace.