Atlassian Central has now surpassed Milwaukee’s Ascent to become the world’s tallest hybrid timber tower, marking a significant milestone for the project and for large-scale mass timber construction globally.

Rising above Central Station and progressing towards its full height of 39 levels, the tower’s exoskeleton and layered facade are now clearly defined on Sydney’s skyline. Designed by SHoP Architects in collaboration with BVN, and delivered by Built and Obayashi Corporation for Dexus, the project reflects a clear commitment to reducing embodied carbon and rethinking how high-rise workplaces operate.

From the outset, the building has been designed to operate on renewable energy, target a 6 Star Green Star rating and achieve a 5.5 Star NABERS Energy commitment, alongside a 50% reduction in upfront embodied carbon compared to conventional construction.

EBSA’s involvement spans the design, supply and installation of the facade automation systems, delivered as part of the early contractor engagement process alongside the wider project team. The package represents, to our knowledge, the largest window automation scope undertaken in Australia to date, supporting natural ventilation strategies, smoke relief and coordinated building operation across the tower’s stacked habitat zones. Our scope includes 4,757 CDC window actuators, 18 CPS-M control panels, 56 distribution boxes and approximately 42 kilometres of cabling.

The operable facade and stacked habitat zones rely on coordinated automation to support natural ventilation, smoke relief and controlled building operation across the tower. Integrating this strategy early in the design phase has been critical to achieving the project’s performance ambitions.

Atlassian Central continues to demonstrate how complex commercial buildings can combine scale, sustainability and operational performance in a dense urban environment.

Architecture & Design Team

EBSA

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