• Capabilities: Architecture, Master Planning and Sustainable Urban Development, Business Advisory, Structural Engineering
  • Sectors: Commercial Developers

Project 177

North Sydney Australia - Delivery of a landmark tower with standout architectural and commercial appeal is helping to revitalise North Sydney.

30 storey

‘A’-grade commercial tower

Innovative approach

to cantilevers to create one of a kind structure
Project 177

Project 177’s good looks and huge commercial potential is also backed up by new retail and leisure opportunities.

North Sydney has seen very little new commercial development for years, but Project 177, a 30 storey, 39,000m2 ‘A’-grade commercial tower, is helping to reboot the precinct’s commercial, retail and residential appeal.

A striking architectural landmark, Project 177’s stunning glass facade with iconic ‘cut out’ and ‘pop out’ design is backed by 30 commercial floors, huge 360 degree views, expansive, unobstructed office space, extensive public areas, and four levels of basement parking.

Providing structural, civil and geotechnical engineering expertise, Arcadis had to overcome a series of complex structural challenges to achieve Project 177’s architectural ambitions while delivering maximum commercial space within a limited building envelope. 

One of the most important challenges to overcome was the need to find design solutions to deliver open floor plates with largely unobstructed office space and views without impeding floor heights or incurring premium construction costs. Arcadis’ innovative solution centred around seven metre cantilevers and long 15.7 metre internal spans, making Project 177 possibly the only building in Australia to achieve such large overhangs with conventional beam depths. 

The foyer and glass podium are also standout features, with levels one and two seemingly floating above the ground floor. While extensive use of glass and light plays a key role in the final effect, the use of discrete ‘hanging’ columns, long slab cantilevers and minimal beam-column connections are at the heart of its visual impact.

While architecturally striking, Project 177’s idiosyncratic, gravity defying cut out and pop out form also reduced overshadowing and preserved sunlight corridors at street level, and were ultimately achieved by hiding the transfer structure behind the façade.

Project 177’s good looks and huge commercial potential is also backed up by new retail and leisure opportunities, including two restaurants, a café, a winter garden and shared public seating areas. With new apartments and rail infrastructure nearby, Project 177 is leading a new appreciation of North Sydney that promises to give Sydney’s CBD some long overdue competition.

Outcomes

30 storey

‘A’-grade commercial tower

Innovative approach

to cantilevers to create one of a kind structure

Questions about this project

Joyce Lee

Buildings Business Manager – NSW +61 (0) 2 8907 8202 Ask me a question
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