One Blackfriars
London United Kingdom
Height

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."

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).

166.3 m / 546 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."

166.3 m / 546 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.

155.7 m / 511 ft
Floors

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).

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
1 2 3 One Blackfriars Outline
Height 166.3 m / 546 ft
Floors 50
Official Name

The current legal building name.

One Blackfriars
Other Names

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

The Boomerang, Beetham Tower
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, 2019
Country

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

City

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

Postal Code
SE1 9GD
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
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
Height

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."

Architectural
166.3 m / 546 ft
To Tip
166.3 m / 546 ft
Occupied
155.71 m / 511 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 Apartments

Number of Apartments refers to the total number of residential units (including both rental units and condominiums) contained within a particular building.

274
# of Parking Spaces

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

125
# 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).

3
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.

50,081 m² / 539,067 ft²
Rankings
#
131
Tallest in Europe
#
18
Tallest in United Kingdom
#
16
Tallest in London
#
33
Tallest Residential Building in Europe
#
5
Tallest Residential Building in United Kingdom
#
4
Tallest Residential Building in London
#
95
Tallest Concrete Building in Europe
#
5
Tallest Concrete Building in United Kingdom
#
3
Tallest Concrete Building in London
Construction Schedule
2006

Proposed

2013

Construction Start

2019

Completed

Architect
Structural Engineer

Façade Maintenance

WSP

Geotechnical

WSP

Interiors

Planning

Wind

Formwork

Sealants

Owner
St George PLC
Developer
Brookfield Multiplex
Architect
Structural Engineer
MEP Engineer
Briggs & Forrester; Hoare Lea
Brookfield Multiplex

Cost

Core Five LLP; AECOM

Façade Maintenance

WSP

Fire

Hoare Lea

Geotechnical

WSP

Interiors

Broadway Malyan; Tara Bernerd & Partners

Landscape

Fabrik

Planning

DP9 Ltd; CBRE

Wind

(not specified)

Designer Group

Ceiling

Prater Limited

Cladding

Adexsi UK; Guardian Glass

Concrete

Byrne Brothers

Elevator

Mitsubishi Elevator and Escalator

Façade Maintenance Equipment

Integral Cradles Ltd

Fire Proofing

Select Fire Services Ltd

Flooring

Mega Marble Limited

Formwork

Interior Partition

Swift Construction, LLC; TES Group, Inc.

Joints/Fasteners

Houston Cox Central Ltd

Sealants

Steel

Dearneside Fabrications Ltd

(not specified)

EeStairs; Stair Master Limited

Videos

12 June 2013 | London

Ian Simpson of Ian Simpson Architects is interviewed by Jeff Herzer during the 2013 CTBUH London Conference at The Brewery, London. Ian talks about 1...

See more

Research

26 October 2015

Stephan Reinke, Stephan Reinke Architects

This paper will reveal the importance of integrating the Ground Plane, Mid-Level and Rooftop Urban Public Spaces in the City. We will explore the NYLON...

See more

12 June 2013 | London

Ian Simpson of Ian Simpson Architects is interviewed by Jeff Herzer during the 2013 CTBUH London Conference at The Brewery, London. Ian talks about 1...

12 June 2013 | London

There are very few architects who have built tall buildings across numerous cities in the UK, and yet several cities outside London have enthusiastically embraced...

11 June 2013 | London

Kamran Moazami of WSP Group is interviewed by Jeff Herzer during the 2013 CTBUH London Conference at The Brewery, London. Kamran discusses the history of...

26 October 2015

Stephan Reinke, Stephan Reinke Architects

This paper will reveal the importance of integrating the Ground Plane, Mid-Level and Rooftop Urban Public Spaces in the City. We will explore the NYLON...

11 June 2013

Viewpoints: The London Conference

European architecture is at a crossroads. Its commercial and environmental realities are driving buildings ever-higher, but not all are convinced. In this article – contributed...