Architecture studios SHoP Architects and BVN have revealed designs for the Sydney offices of tech company Atlassian, which they assert will be the world’s tallest hybrid timber building.

The Atlassian headquarters will be constructed adjacent to Sydney Central Station in New South Wales, Australia. Owing to its 40-story height, the office building will consist of an interior timber structure enclosed by an envelope of steel and glass.

Standing at 180 metres, SHoP Architects predicts that Atlassian’s headquarters will be the tallest hybrid timber tower ever constructed when construction is finished in 2025. The New-York practice is at work on the globe’s skinniest skyscraper.

In the last few years, a number of studios proposed building projects that, if finished, would emerge as the globe’s tallest hybrid timber tower. These include Perkins and Wills design for a 120-metre-high tower in Vancouver and Japanese architect Shigeru Ban’s plan for a  71-metre-high tower in the same community. A steel exoskeleton would support “mega floors” that will split the tower in a vertical fashion, into what SHoP Architects defines as neighbourhoods, which will include a mixture of indoor and outdoor spaces.

Elevated parks will be situated at different points in the tower, which the New York architecture firm stated are designed to accommodate the comfort of inhabitants throughout the year.

The parks will be outfitted with an electricity-generating glass facade which will “self shade” the offices inside.

Merging the steel frame with mass timber interiors will generate 50 per cent less embodied carbon in the building process in comparison to a conventional tower, says SHoP Architects.

The current design includes an electric-generating facade system with self-shade capabilities to diminish direct heat gain internally.

Combined with the design’s application of mass timber, the original facade empowers the project to utilise Sydney’s temperate climate to help diminish carbon emissions and create on-site energy.

Atlassian’s headquarters will be constructed above a standing historic building known as The Parcels Shed.

Constructed in 1906, the building was a component of Sydney Central Station and was utilised for accepting deliveries of parcels until the early 1980s. Now it stands as the 480-bed Railway Square youth hostel.

SHoP Architects and BVN plan to incorporate the youth hostel building into the lower floors of the project.

New York’s SHoP Architects was originated in 1996. The practice also collaborated with Ken Smith Workshop to morph Pier 35 in Manhattan into an eco-park, and with Gensler to design Uber sky ports.

BVN is an Australian architecture firm that dates back to 1997 and has offices in Sydney, Brisbane, London and New York.