Chicago, Illinois, United States
A landmark for Sydney’s business district
The design for 100 Mount Street is inspired by Sydney’s rich architectural landscape and shaped by SOM’s legacy of innovation in architecture and structural engineering. The 35-story office tower offers panoramic views of Sydney Harbor, the Sydney Opera House, and Sydney Harbor Bridge, while creating welcoming new public spaces and amenities at its base.
At ground level, the building’s offset core allows for a series of highly flexible, open-concept spaces, including a commercial lobby, café, and restaurant. These areas are sheltered from the elements by a nine-meter-tall glass wall. From the landscaped public plaza, with cascading steps and inclined pathways, visitors can access new shops and cafes at the lower street level, while a pedestrian route bisects the site to connect the building to nearby public transit.
The tower’s interiors are designed to maximize daylight and open space, with 6-meter column-free zones to the north and south. Together, the offset core and high-performance closed cavity facade allow for automatic daylight control and reduce glare, while maintaining maximum transparency.