Council on Tall Buildings and Urban Habitat
International Towers, Sydney
Featured October 2018

Barangaroo South/International Towers was recognized as an "Award of Excellence" winner in the "Best Tall Building Asia & Australasia" category at the 2018 Best Tall Building Awards.

Other Featured Tall Buildings

“Everything we do at International Towers is based on sustainability, and that includes environmental, social and economic perspectives. The complex boasts notable energy-saving features, like 65,000 square feet of solar panels which result in a 20% reduction of embodied carbon.”

Liam Timms, Fund Manager, Lendlease Corporation

Completion Date:
Total Land Area:
78,400 sq m (843,890 sq ft)
Total Building Area:
37,000 sq m (398,264 sq ft)
Total Hardscape:
29,820 sq m (320,979 sq ft)
Total Softscape:
5,950 sq m (64,045 sq ft)
Urban Planner:
Rogers Stirk Harbour + Partners (design); Lendlease Design (architect of record)
Landscape Architects:
Aspect Oculus; Gustafson, Guthrie, & Nichol
Project manager:
Lendlease Project Management
Main Contractor:
Lendlease Building Pty Ltd

The International Towers Sydney are the driving force behind Barangaroo South, Sydney’s largest urban regeneration project in decades. It unites the central business district with the western waterfront, providing a new financial services hub, transforming a contaminated former wharf into a new district of Sydney, reconnecting it to the harbor and giving people back a crucial part of the city. The city-defining development is creating thousands of jobs, and provides a vibrant new hub for work and play, injecting more than US$1.5 billion annually into the economy. When fully leased, more than 23,000 office workers and 2,000 residents will populate the district. They will be served by more than 80 cafés, bars, restaurants, and retail outlets.

Effectively, Barangaroo South is a 5.2-hectare western extension to the core CBD. International Towers is the epicenter of this “Six-Star Green Star Community,” incorporating premium residential and commercial buildings; and a variety of shopping, hospitality and public realm experiences, including 14 kilometers of harborside walking tracks.

Extensive transport connections integrate the site to the city via an underground pedestrian link, a new ferry hub, overpass pedestrian bridges, an upcoming Sydney Metro station and more than 1,000 dedicated bike parking spaces incorporated into the towers. In fact, there are three times as many bike parking spaces as there are spaces for cars. There is a direct link to all major suburbs, in all directions, from one central point — making Barangaroo Australia’s most accessible workplace. The award-winning Barangaroo Reserve, at the northernmost point of the site, was restored to echo Sydney Harbour’s pre-1836 shoreline, with more than 75,000 native plants creating a beautiful lunchtime oasis for the community.

More than 23,000 office workers and 2,000 residents will populate the district when Barangaroo South/International Towers is fully leased, with access to over 80 eateries and retail amenities. The base of Tower 2 features al fresco dining, activating the street.

A centralized mechanical plant and district cooling system efficiently provide services to all towers, enabling the provision of roof-level terraces that extend the urban habitat off the ground level. The air conditioning system routes all exhausts via dedicated heat recovery coils. A water treatment plant uses recycled water for toilets and irrigation — processing one megaliter a day. Six thousand square meters of solar photovoltaic panels provide electricity to offset the energy used by the recycling plant and public domain lighting. The construction of the project entailed 97 percent diversion of waste from landfills. Food service packaging is made from compostable materials, and is processed with food scraps into fertilizer or feed stock for energy production. More than 50,000 LED lamps are used throughout the public realm and buildings.

The three-tower development is skewed from the street grid to provide optimal view corridors, ventilation and sunlight. The podiums are topped with green roofs.

A large common basement with single vehicle access allows a continual active street front at ground level. The lobbies of the towers are transparent and inviting; open to visitors, they run through all the buildings as a continuation of the streets of Barangaroo South. This adds a new dimension to Sydney’s outdoor culture and gives them human scale and impact at ground level. The buildings on the site address the waterfront, bringing a critical mass of activity and enabling the creation of a new public space, in an area where public space is at a premium.

Related Links
CTBUH Skyscraper Center Profile:
International Towers Sydney