Going up: Sydney Tall Timber Building Underway – Atlassian Central

21 November 2023

Steel and concrete megaframe supports free-standing, three-floor CLT megafloors to create world’s tallest hybrid timber tower in Sydney, Australia. The 39-storey development, currently under construction and located in the Tech Central precinct in Sydney, will provide a new Australian headquarters for software company Atlassian. A youth hostel on the lower five levels will be integrated into the 1906 heritage-listed Parcels Shed building.

The tower’s superstructure, developed in collaboration with local practice BVN and structural engineer Eckersley O’Callaghan and TTW, comprises a steel and concrete ‘mega frame’ supporting a series of ‘mega floors’ positioned every four storeys. A steel and glass exoskeleton façade wraps around the outside.

The mega floors each support a giant freestanding three-floor timber insertion constructed in cross-laminated timber (CLT). The mega floorsdivide the tower vertically into separate ‘neighbourhoods’ incorporating a mix of indoor and outdoor spaces, including planted terraces.

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