World's tallest timber tower tops out in Sydney [AU]

Friday 31 Jul 2026

 
The Atlassian Central skyscraper, designed by SHoP Architects and BVN Architecture, in Sydney, Australia, has become the world's tallest hybrid timber tower. Designed as the Sydney headquarters for technology company Atlassian, the 180-metre-high office tower topped out earlier this week.

With a hybrid structure of timber, steel and concrete it overtakes the 86.6 -metre-high Ascent tower in Milwaukee, USA, by almost 100 metres, to become the world's tallest hybrid timber tower.

The 39-storey skyscraper has a unique hybrid structural system, with concrete cores supporting mass timber floors and internal structures, wrapped in a steel exoskeleton.

This exoskeleton supports seven "mega floors" that have been placed every four stories to divide the building vertically into what the design team described as "habitats". These, primarily timber, habitats will contain office accommodation along with multi-floor atriums and elevated parks.

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Source: Dezeen
Image credit: Atlassian


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