1134
Global
Height rank

International Towers Sydney Tower 1

Sydney
Height
1
To Tip:

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest point of the building, irrespective of material or function of the highest element (i.e., including antennae, flagpoles, signage and other functional-technical equipment).

217 m / 712 ft
2
Architectural:

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment. This measurement is the most widely utilized and is employed to define the Council on Tall Buildings and Urban Habitat (CTBUH) rankings of the "World's Tallest Buildings."

217 m / 712 ft
3
Occupied:

Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.

209 m / 686 ft
Floors
Above Ground

The number of floors above ground should include the ground floor level and be the number of main floors above ground, including any significant mezzanine floors and major mechanical plant floors. Mechanical mezzanines should not be included if they have a significantly smaller floor area than the major floors below. Similarly, mechanical penthouses or plant rooms protruding above the general roof area should not be counted. Note: CTBUH floor counts may differ from published accounts, as it is common in some regions of the world for certain floor levels not to be included (e.g., the level 4, 14, 24, etc. in Hong Kong).

51
Below Ground

The number of floors below ground should include all major floors located below the ground floor level.

2
1 2 3 International Towers Sydney Tower 1 Outline
Height 217.0 m / 712 ft
Floors 51
Official Name
The current legal building name.

International Towers Sydney Tower 1

Name of Complex
A complex is a group of buildings which are designed and built as pieces of a greater development.

Barangaroo South

Type
CTBUH collects data on two major types of tall structures: 'Buildings' and 'Telecommunications / Observation Towers.' A 'Building' is a structure where at least 50% of the height is occupied by usable floor area. A 'Telecommunications / Observation Tower' is a structure where less than 50% of the structure's height is occupied by usable floor area. Only 'Buildings' are eligible for the CTBUH 'Tallest Buildings' lists.

Building

Status
Completed
Architecturally Topped Out
Structurally Topped Out
Under Construction
Proposed
On Hold
Never Completed
Vision
Competition Entry
Canceled
Proposed Renovation
Under Renovation
Renovated
Under Demolition
Demolished

Completed

Completion

2016

Country
The CTBUH follows the United Nations's definition of Country, and thus uses the lists and codes established by that organization.

Australia

City
The CTBUH follows the United Nations's definition of City, and thus uses the lists and codes established by that organization.

Sydney

Function
A single-function tall building is defined as one where 85% or more of its usable floor area is dedicated to a single usage. Thus a building with 90% office floor area would be said to be an "office" building, irrespective of other minor functions it may also contain.

A mixed-use tall building contains two or more functions (or uses), where each of the functions occupy a significant proportion of the tower's total space. Support areas such as car parks and mechanical plant space do not constitute mixed-use functions. Functions are denoted on CTBUH "Tallest Building" lists in descending order, e.g., "hotel/office" indicates hotel function above office function.

office

Structural Material
Steel
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from steel. Note that a building of steel construction with a floor system of concrete planks or concrete slab on top of steel beams is still considered a “steel” structure as the concrete elements are not acting as the primary structure.

Reinforced Concrete
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from concrete which has been cast in place and utilizes steel reinforcement bars.

Precast Concrete
Both the main vertical/lateral structural elements and the floor spanning system are constructed from steel reinforced concrete which has been precast as individual components and assembled together on-site.

Mixed-Structure
Utilizes distinct systems (e.g. steel, concrete, timber), one on top of the other. For example, a steel/concrete indicates a steel structural system located on top of a concrete structural system, with the opposite true of concrete/steel.

Composite
A combination of materials (e.g. steel, concrete, timber) are used together in the main structural elements. Examples include buildings which utilize: steel columns with a floor system of reinforced concrete beams; a steel frame system with a concrete core; concrete-encased steel columns; concrete-filled steel tubes; etc. Where known, the CTBUH database breaks out the materials used in a composite building’s core, columns, and floor spanning separately.

concrete

Energy Label

Green Star

Official Website

International Towers Sydney

Height
Architectural
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building, including spires, but not including antennae, signage, flag poles or other functional-technical equipment. This measurement is the most widely utilized and is employed to define the Council on Tall Buildings and Urban Habitat (CTBUH) rankings of the "World's Tallest Buildings."

217.0 m / 712 ft

To Tip
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest point of the building, irrespective of material or function of the highest element (i.e., including antennae, flagpoles, signage and other functional-technical equipment).
217.0 m / 712 ft
Occupied
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
209.0 m / 686 ft
Floors Above Ground
The number of floors above ground should include the ground floor level and be the number of main floors above ground, including any significant mezzanine floors and major mechanical plant floors. Mechanical mezzanines should not be included if they have a significantly smaller floor area than the major floors below. Similarly, mechanical penthouses or plant rooms protruding above the general roof area should not be counted. Note: CTBUH floor counts may differ from published accounts, as it is common in some regions of the world for certain floor levels not to be included (e.g., the level 4, 14, 24, etc. in Hong Kong).

51

Floors Below Ground
The number of floors below ground should include all major floors located below the ground floor level.

2

# of Parking Spaces
Number of Parking Spaces refers to the total number of car parking spaces contained within a particular building.

541

Top Elevator Speed
Top Elevator Speed refers to the top speed capable of being achieved by an elevator within a particular building, measured in meters per second.

8 m/s

Tower GFA
Tower GFA refers to the total gross floor area within the tower footprint, not including adjoining podiums, connected buildings or other towers within the development.

118,000 m² / 1,270,141 ft²

Rankings
#
1134
Tallest in the World
#
40
Tallest in Oceania
#
11
Tallest in Sydney
#
516
Tallest Office Building in the World
#
16
Tallest Office Building in Oceania
#
16
Tallest Office Building in Australia
#
8
Tallest Office Building in Sydney
#
558
Tallest Concrete Building in the World
#
33
Tallest Concrete Building in Oceania
#
33
Tallest Concrete Building in Australia
#
7
Tallest Concrete Building in Sydney
Construction Schedule
2010

Proposed

2014

Construction Start

2016

Completed

Owner/Developer
Architect
Design

Usually involved in the front end design, with a "typical" condition being that of a leadership role through either Schematic Design or Design Development, and then a monitoring role through the CD and CA phases.

Architect of Record

Usually takes on the balance of the architectural effort not executed by the "Design Architect," typically responsible for the construction documents, conforming to local codes, etc. May often be referred to as "Executive," "Associate," or "Local" Architect, however, for consistency CTBUH uses the term "Architect of Record" exclusively.

Structural Engineer
Design

The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.

Engineer of Record

The Engineer of Record takes the balance of the engineering effort not executed by the “Design Engineer,” typically responsible for construction documents, conforming to local codes, etc.

MEP Engineer
Design

The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.

Contractor
Main Contractor

The main contractor is the supervisory contractor of all construction work on a project, management of sub-contractors and vendors, etc. May be referred to as "Construction Manager," however, for consistency CTBUH uses the term "Main Contractor" exclusively.

Other Consultant

Other Consultant refers to other organizations which provided significant consultation services for a building project (e.g. wind consultants, environmental consultants, fire and life safety consultants, etc).

Landscape
Property Management
JLL
Owner/Developer
Architect
Design

Usually involved in the front end design, with a "typical" condition being that of a leadership role through either Schematic Design or Design Development, and then a monitoring role through the CD and CA phases.

Architect of Record

Usually takes on the balance of the architectural effort not executed by the "Design Architect," typically responsible for the construction documents, conforming to local codes, etc. May often be referred to as "Executive," "Associate," or "Local" Architect, however, for consistency CTBUH uses the term "Architect of Record" exclusively.

Structural Engineer
Design

The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.

Engineer of Record

The Engineer of Record takes the balance of the engineering effort not executed by the “Design Engineer,” typically responsible for construction documents, conforming to local codes, etc.

MEP Engineer
Design

The Design Engineer is usually involved in the front end design, typically taking the leadership role in the Schematic Design and Design Development, and then a monitoring role through the CD and CA phases.

Contractor
Main Contractor

The main contractor is the supervisory contractor of all construction work on a project, management of sub-contractors and vendors, etc. May be referred to as "Construction Manager," however, for consistency CTBUH uses the term "Main Contractor" exclusively.

Other Consultant

Other Consultant refers to other organizations which provided significant consultation services for a building project (e.g. wind consultants, environmental consultants, fire and life safety consultants, etc).

Landscape
Property Management
JLL
Material Supplier

Material Supplier refers to organizations which supplied significant systems/materials for a building project (e.g. elevator suppliers, facade suppliers, etc).

Concrete
Boral Group; Bianco Precast
Fire Suppression
Triple 'M' Group of Companies; Premier JV
Flooring
ASP Flooring Systems
Steel
One Steel; Courtly Reo; SouthSide; Structural Systems

CTBUH Awards & Distinctions

Best Tall Building Asia & Australasia 2018 Award of Excellence

2018 CTBUH Awards

Urban Habitat Award 2018 Award of Excellence

2018 CTBUH Awards

CTBUH Initiatives

Lendlease Confirmed as Diamond Sponsor

11 July 2017 - Conference Activity

CTBUH Releases Year in Review: Tall Trends of 2016

10 January 2017 - CTBUH News

Videos

31 May 2018 | Sydney

An Anchor of Urban Regeneration

International Towers Sydney is the anchor piece of Barangaroo South, one of the most significant waterfront regenerations globally; weaving it organically into the existing CBD’s...

Research

30 October 2017

Connecting the City: People, Density & Infrastructure

CTBUH 2017 Conference Speakers

The future of humanity on this planet relies on the collective benefits of urban density; reducing both land consumption and the energy needed to construct...

Global News

10 February 2020

High-Rise Hotel Proposed for Sydney’s Darling Harbour

ASX-listed casino operator Crown Resorts has unveiled early images for Sydney's first six-star hotel and its serviced apartments at One Barangaroo, a controversial AU$2.4-billion (US$1.6-billion)...

About International Towers Sydney Tower 1

Constructed on a former container port, International Towers Sydney Tower 1 was part of the three building International Towers complex and part of the larger redevelopment of Barangaroo South into a new waterfront extension of Sydney’s Central Business District. International Towers was conceived as three sibling buildings with varying heights and specific design features to provide each building with its own identity. One of the identity markers is the in the arrangement and color of the vertical solar shades applied to the exterior facades, improving the thermal performance of the buildings as they were comprehensively designed with the context of their surroundings. The elevator cores were positioned to the northern edge of each building footprint, providing for expansive office floor plates while also further reducing energy consumption through a reduction of glazing on each building’s northern exposure.

Designing workspaces around social interaction was a key part of the design process, providing communal meeting areas beside the elevator cores interlinking workers throughout each building, while the entirety of the roofs, both at the podium and uppermost levels, are also available as open air terraces, courtesy of utilizing a centralized mechanical plant to efficiently provide services to all three buildings. At street level, all three buildings share a common basement and single entry point for vehicles in order to enhance the pedestrian friendliness of where the towers meet the ground.

CTBUH Awards & Distinctions

Best Tall Building Asia & Australasia 2018 Award of Excellence

2018 CTBUH Awards

Urban Habitat Award 2018 Award of Excellence

2018 CTBUH Awards

31 May 2018 | Sydney

An Anchor of Urban Regeneration

International Towers Sydney is the anchor piece of Barangaroo South, one of the most significant waterfront regenerations globally; weaving it organically into the existing CBD’s...

31 May 2018 | Sydney

Sydney’s New Front Door Swings Open

The three towers of International Towers Sydney are the driving force behind Barangaroo, Sydney’s largest urban regeneration project in decades. It unites the CBD with...

31 October 2017 | Sydney

Interview: Ivan Harbour

Ivan Harbour of Rogers Stirk Harbour + Partners is interviewed by Chris Bentley during the 2017 CTBUH Australia Conference.

31 October 2017 | Sydney

Interview: Karl Fender

Karl Fender of Fender Katsalidis Architects is interviewed by Chris Bentley during the 2017 CTBUH Australia Conference.

30 October 2017

Connecting the City: People, Density & Infrastructure

CTBUH 2017 Conference Speakers

The future of humanity on this planet relies on the collective benefits of urban density; reducing both land consumption and the energy needed to construct...

10 January 2017

Year in Review: Tall Trends of 2016

Jason Gabel, Annan Shehadi, Shawn Ursini & Marshall Gerometta, CTBUH

CTBUH has determined that 128 buildings of 200 meters’ height or greater were completed around the world in 2016 – setting a new record for...

11 July 2017

CTBUH is pleased to announce that Lendlease has confirmed as a Diamond Sponsor and Networking Reception Host of the 2017 Conference.

10 January 2017

CTBUH Releases Year in Review: Tall Trends of 2016

CTBUH has determined that 128 buildings of 200 meters’ height or greater were completed around the world in 2016 – setting a new record for annual tall building completions and marking the third consecutive record-breaking year.