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Atlassian Sydney Headquarters

28 August 2022

“TTW are proud to be part of the team who are bringing to life this world-leading sustainable tower that will become Atlassian‘s flagship home in Sydney. It’s an incredible hybrid timber design, which will be the tallest of its kind in the world, standing at approximately 180 metres.” – Taylor Thomson Whitting (TTW)

Located in Sydney’s new Innovation and Technology Precinct, Atlassian Sydney Headquarters will be a 40-storey building at approx. 180 metres tall and includes a youth hostel occupying the lower levels. To be completed by 2025 and attracting 25,000 workers, the new 40,000m2 world-first commercial tower is a groundbreaking global first.

The benchmark design of timber, with a glass and steel facade, includes a mix of outdoor and indoor spaces and reaches over 40 storeys high. 

From a Civil perspective, we have designed and coordinated the project with new major storm water service connections , flood protection, and public domain coordination for current works and future development

The State Significant Development’s design has lateral stability, steel composite design, timber design and exoskeleton steel design. Being directly adjacent to platform one at Central Station, the development required approval from Transport for NSW (TfNSW). Expert in transport and infrastructure, TTW is the TfNSW Approved Engineering Organisation (AEO) for the project.

Unique design features include:

  • 4 storey CLT timber buildings with multiple cantilevers
  • Steel Exoskeleton with mega transfer to core
  • Heritage lower levels that allow for reinstatement of the parcel shed
  • Retention and excavation adjacent platform 1 central station
  • Tunnelling underneath Devonshire pedestrian tunnel
  • Building in a live environment including rail and pedestrian tunnels

TTW overcame many challenges, such as significant overturning moments due to gravity. This was avoided by repositioning the core, eliminating the need for ground anchors and pulling out significant concrete volume.

Click here to read more.

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