725
Global
Height rank

One Canada Square

London
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).

236 m / 774 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."

236 m / 774 ft
1 2 One Canada Square Outline
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).

50
Below Ground

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

3
Height 236.0 m / 774 ft
Floors 50
Official Name
The current legal building name.

One Canada Square

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

Canary Wharf DS7

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

Canary Wharf

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, 1991

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

United Kingdom

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

London

Address

1 Canada Square

Postal Code

E14 5AB

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.

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."

236.0 m / 774 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).
236.0 m / 774 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).

50

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

3

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

900

# of Elevators
Number of Elevators refers to the total number of elevator cars (not shafts) contained within a particular building (including public, private and freight elevators).

36

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.

162,422 m² / 1,748,296 ft²

Rankings
#
725
Tallest in the World
#
26
Tallest in Europe
#
3
Tallest in United Kingdom
#
3
Tallest in London
#
324
Tallest Office Building in the World
#
10
Tallest Office Building in Europe
#
2
Tallest Office Building in United Kingdom
#
2
Tallest Office Building in London
#
58
Tallest Steel Building in the World
#
2
Tallest Steel Building in Europe
#
1
Tallest Steel Building in United Kingdom
#
1
Tallest Steel Building in London
Construction Schedule
1989

Construction Start

1991

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.

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.

Developer
Canary Wharf Group; Olympia & York
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.

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.

Cleveland Bridge Ltd.; M.S. Yolles & Partners
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.

H.H. Angus & Associates Limited
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.

CTBUH Initiatives

Seven Cities Winter Spaces Walking Tour

29 January 2015 - Event

Activity at the CTBUH London Conference: Day Three

13 June 2013 - Conference

Research

13 April 2011

Tall and Urban: An Analysis of Global Population and Tall Buildings

CTBUH Research

Tall buildings are spreading across the globe at an ever-increasing rate. This study demonstrates the relationship between population and tall buildings across those countries and...

13 April 2011

Tall and Urban: An Analysis of Global Population and Tall Buildings

CTBUH Research

Tall buildings are spreading across the globe at an ever-increasing rate. This study demonstrates the relationship between population and tall buildings across those countries and...

16 October 2005

An Aesthetics of Sustainability

Lawrence S. Ng, Cesar Pelli & Associates

Cesar Pelli recently completed the design of two tall buildings: one in Madrid and one in the United Arab Emirates, both extreme climatic conditions. Both...

29 January 2015

Seven Cities Winter Spaces Walking Tour

The new CTBUH Urban Habitat / Urban Design Committee organized a highly successful Winter Spaces Walking Tour in seven cities around the world.

13 June 2013

Activity at the CTBUH London Conference: Day Three

Tall Building Industry Gathers in London See the highlights from the tall building event of the year…

13 June 2013

One Canada Square + Canary Wharf Technical Tour Report

A tour of Canary Wharf is an object lesson in the kind of place-making that can stem from the exploitation of an increasing rarity and developer’s delight: a 100-acre blank space in a major metropolitan area.

13 April 2011

CTBUH Releases Analysis of Global Population and Tall Buildings

Tall buildings are spreading across the globe at an ever-increasing rate. This study demonstrates the relationship between population and tall buildings across those countries and presents information on the average height and age of each country’s tallest buildings.