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One Sydney Harbour
One Sydney Harbour
Barangaroo, Australia
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Other Projects by PTW Architects
One Sydney Harbour
Barangaroo, Australia
One Sydney Harbour, developed by Lendlease, was envisioned as an iconic residential project befitting one of the world’s most spectacular natural harbours. Designed by the Renzo Piano Building Workshop (RPBW) in collaboration with Guernier Architecture and PTW Architects, the project showcases world-class architecture, sustainability, and innovation in urban design. Further, we're proud to announce that One Sydney Harbour won a Residential Architecture – Multiple Housing award in AIA's 2025 NSW Architecture Awards as well as took home the High Rise City Development award in Urban Taskforce's Development Excellence Awards!
Of the project, here is what Chris Johnson, Chair of the Judging Panel at Urban Taskforce, had to say:
“This stunning high-rise development was designed by Renzo Piano and is Australia’s first carbon neutral project with 6 Star Green Star rating. One Sydney Harbour is the final piece of the transformation of Barangaroo South, alongside Hickson Park and Waterman’s Cove. Accommodating 848 apartments, including 50 Key Worker Housing, the striking three towers are 72, 68 and 30 storeys. Setting a new benchmark for luxury residential living in Australia, and globally. This fabulous development features special low iron glass with double glazed windows that can be naturally ventilated.”
The development includes 849 apartments across three towers: Residences One (250m), Residences Two (235m), and Watermans Residences (107m) which features 50 Key Worker Housing.
Located on the western foreshore of Sydney’s CBD, the towers align with the fan-shaped grid of the Barangaroo Master Plan and mediate the threshold between Hickson Park and the Barangaroo South commercial district. The towers are characterised by triangular floor plates which were carefully designed to maximise solar access and sightlines while minimising overlooking between the towers and the surrounding buildings.
The geometry of the towers and their arrangement enabled the creation of a through-site link connecting Hickson Park to the harbour foreshore at Watermans Cove. This public promenade, known as ‘The Strada’, diagonally traverses the site and is sheltered by a glass roofed galleria with integrated shading.
A two-storey podium, characterised by a sculpted GRC façade, defines a human-scaled street edge along The Strada, Watermans Quay and Barangaroo Avenue. The podium is set back on the northern side of the development, allowing the towers to rise freely from the park edge. Along this frontage, grand tower columns frame a series of loggia spaces which accommodate the three entrance lobbies and a new commercial dining precinct. Along Hickson Road, a colonnade beneath Watermans Residences extends the covered footpaths of the Barangaroo South streetscape.
Several innovative façade systems were developed for the project, including a triple-layered open cavity glass façade system (OCF), a wintergarden sash window mechanism and a bay window system set within the GRC corner ‘notches’ of the towers. Prototyped in Sydney, these façades act as climate-responsive systems, regulating light and airflow through a layered design that significantly minimises heat loads whilst retaining a transparent communion with the external environment.
Designed to take full advantage of Sydney’s benign climate, the apartments feature elegant interiors by State of Craft and Darling Associates, which seamlessly connect to wintergardens, balconies, and outdoor terraces. Communal amenities include a fully serviced residents’ lounge, two swimming pools, wellness areas and expansive rooftop gardens.
Location
Gadigal Country, Barangaroo, Sydney, NSW, Australia
Consultant
PTW Architects- Executive Architect and Executive Interior Design
Renzo Piano Building Workshop (RPBW) - Design Architect
Guernier Architecture - Australian representative RPBW
State of Craft - Interior Design
Client
Lendlease
Awards
2025 NSW Architecture Awards, AIA - Residential Architecture - Multiple Housing, Winner
2025 Development Excellence Awards, Urban Taskforce - High Rise City Development, Winner
2025 World Architecture Festival - Housing, Shortlisted
Of the project, here is what Chris Johnson, Chair of the Judging Panel at Urban Taskforce, had to say:
“This stunning high-rise development was designed by Renzo Piano and is Australia’s first carbon neutral project with 6 Star Green Star rating. One Sydney Harbour is the final piece of the transformation of Barangaroo South, alongside Hickson Park and Waterman’s Cove. Accommodating 848 apartments, including 50 Key Worker Housing, the striking three towers are 72, 68 and 30 storeys. Setting a new benchmark for luxury residential living in Australia, and globally. This fabulous development features special low iron glass with double glazed windows that can be naturally ventilated.”
The development includes 849 apartments across three towers: Residences One (250m), Residences Two (235m), and Watermans Residences (107m) which features 50 Key Worker Housing.
Located on the western foreshore of Sydney’s CBD, the towers align with the fan-shaped grid of the Barangaroo Master Plan and mediate the threshold between Hickson Park and the Barangaroo South commercial district. The towers are characterised by triangular floor plates which were carefully designed to maximise solar access and sightlines while minimising overlooking between the towers and the surrounding buildings.
The geometry of the towers and their arrangement enabled the creation of a through-site link connecting Hickson Park to the harbour foreshore at Watermans Cove. This public promenade, known as ‘The Strada’, diagonally traverses the site and is sheltered by a glass roofed galleria with integrated shading.
A two-storey podium, characterised by a sculpted GRC façade, defines a human-scaled street edge along The Strada, Watermans Quay and Barangaroo Avenue. The podium is set back on the northern side of the development, allowing the towers to rise freely from the park edge. Along this frontage, grand tower columns frame a series of loggia spaces which accommodate the three entrance lobbies and a new commercial dining precinct. Along Hickson Road, a colonnade beneath Watermans Residences extends the covered footpaths of the Barangaroo South streetscape.
Several innovative façade systems were developed for the project, including a triple-layered open cavity glass façade system (OCF), a wintergarden sash window mechanism and a bay window system set within the GRC corner ‘notches’ of the towers. Prototyped in Sydney, these façades act as climate-responsive systems, regulating light and airflow through a layered design that significantly minimises heat loads whilst retaining a transparent communion with the external environment.
Designed to take full advantage of Sydney’s benign climate, the apartments feature elegant interiors by State of Craft and Darling Associates, which seamlessly connect to wintergardens, balconies, and outdoor terraces. Communal amenities include a fully serviced residents’ lounge, two swimming pools, wellness areas and expansive rooftop gardens.
Location
Gadigal Country, Barangaroo, Sydney, NSW, Australia
Consultant
PTW Architects- Executive Architect and Executive Interior Design
Renzo Piano Building Workshop (RPBW) - Design Architect
Guernier Architecture - Australian representative RPBW
State of Craft - Interior Design
Client
Lendlease
Awards
2025 NSW Architecture Awards, AIA - Residential Architecture - Multiple Housing, Winner
2025 Development Excellence Awards, Urban Taskforce - High Rise City Development, Winner
2025 World Architecture Festival - Housing, Shortlisted
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