182
Global
Height rank

Gate to the East

Suzhou
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).

301.8 m / 990 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."

301.8 m / 990 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.

261.1 m / 856 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).

66
Below Ground

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

5
1 2 3 Gate to the East Outline
Height 301.8 m / 990 ft
Floors 66
Official Name
The current legal building name.

Gate to the East

Other Names
Other names the building has commonly been known as, including former names, common informal names, local names, etc.

The Pants Building, Gate of the Orient, Oriental Arc

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

2015

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

China

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

Suzhou

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.

residential / hotel / 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.

composite

Core
Reinforced Concrete
Columns
Concrete Filled Steel
Floor Spanning
Steel
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."

301.8 m / 990 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).
301.8 m / 990 ft
Occupied
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the highest occupied floor within the building.
261.1 m / 856 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).

66

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

5

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.

450,000 m² / 4,843,760 ft²

Rankings
#
182
Tallest in the World
#
110
Tallest in Asia
#
94
Tallest in China
#
2
Tallest in Suzhou
#
84
Tallest Mixed-use Building in the World
#
59
Tallest Mixed-use Building in Asia
#
52
Tallest Mixed-use Building in China
#
2
Tallest Mixed-use Building in Suzhou
#
109
Tallest Composite Building in the World
#
92
Tallest Composite Building in Asia
#
85
Tallest Composite Building in China
#
2
Tallest Composite Building in Suzhou
Construction Schedule
2004

Construction Start

2015

Completed

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
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
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.

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.

Owner/Developer
Suzhou Chinaing Real Estate Co., Ltd.
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
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
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.

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).

Marketing
Savills; Colliers International; CBRE

CTBUH Initiatives

Suzhou Regional Tour Report

20 September 2014 - Event

Research

01 August 2020

Skybridges of Significance

CTBUH Research

Linking tall buildings with horizontal spaces, whether purely for circulation or containing programming, has been a subject of fascination for as long as tall buildings...

About Gate to the East

Topping out at just above 300 meters by way of its twin spires, Gate to the East was the first supertall to be constructed in the city of Suzhou. The building is located on the eastern side of the city and adjacent to Lake Jinji, with the design serving as a focal point for a new central business district as well as a gateway looking towards the historic city center. The archway draws from cultural influences of the Gardens of Suzhou, dating to the 11th-19th century and listed as UNESCO World Heritage Sites.

The archway also functionally splits the building with residential use on one side and commercial offices, hotel and a museum on the other. The two towers are then structurally joined at the top, the uppermost floor of which contains an indoor atrium landscaped with a Suzhou style garden. Both towers were framed with composite structures featuring a reinforced concrete core and a perimeter of large steel columns. Directly above the 7 story podium base, the columns flanking the void begin tapering inward towards the center. A large belt truss wraps the perimeter of the entire structure where the two legs join near the top.

The unusual shape of the tower led to a number of criticisms likening the structure’s form to a “pair of trousers” as well as nicknames such as “Pants to the East” applied to it even before the tower was topped out. The building as such had become well known to the rest of the world upon completion for this very reason and has in a way fulfilled an unintended role of serving as a gateway to Suzhou. Locally, the building has indeed become a focal point for the city as well as the business district that has since grown up around it, including the construction of the Suzhou Zhongnan Center. A major rail station below the archway ensures Gate to the East will continue to be a gateway for the emerging new economic heart of the city.