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Tower 42
London
This project is a renovation and replaced NatWest Tower
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- CTBUH Drawing
- Facts
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Metrics
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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).
182.9 m
/ 600 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."
182.9 m
/ 600 ft
1
2
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).
43
Below Ground
The number of floors below ground should include all major floors located below the ground floor level.
3
Height
182.9 m
/ 600 ft
Floors
43
Official Name
The current legal building name.
Tower 42
Other Names
Other names the building has commonly been known as, including former names, common informal names,
local names, etc.
National Westminster Tower, International Financial Centre, Natwest 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
Completion
1980
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.
Address
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.
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
All-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 an “all-steel” structure as the concrete elements are not acting as the primary structure.
All-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 and/or steel reinforced concrete which has been precast as individual components and assembled together on-site.
All-Timber
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from timber. An all-timber structure may include the use of localized non-timber connections between timber elements. Note that a building of timber construction with a floor system of concrete planks or concrete slab on top of timber beams is still considered an “all-timber” structure as the concrete elements are not acting as the primary structure.
Mixed-Structure
Utilizes distinct systems (e.g. all-steel, all-concrete, all-timber), one on top of the other. For example, a Steel Over Concrete indicates an all-steel structural system located on top of an all-concrete structural system, with the opposite true of Concrete Over 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 within a composite building’s primary structural elements.
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 an “all-steel” structure as the concrete elements are not acting as the primary structure.
All-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 and/or steel reinforced concrete which has been precast as individual components and assembled together on-site.
All-Timber
Both the main vertical/lateral structural elements and the floor spanning systems are constructed from timber. An all-timber structure may include the use of localized non-timber connections between timber elements. Note that a building of timber construction with a floor system of concrete planks or concrete slab on top of timber beams is still considered an “all-timber” structure as the concrete elements are not acting as the primary structure.
Mixed-Structure
Utilizes distinct systems (e.g. all-steel, all-concrete, all-timber), one on top of the other. For example, a Steel Over Concrete indicates an all-steel structural system located on top of an all-concrete structural system, with the opposite true of Concrete Over 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 within a composite building’s primary structural elements.
Composite
Official Website
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."
182.9 m / 600 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).
182.9 m
/ 600 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).
43
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.
60
# 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).
22
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.
7 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.
30,100 m² / 323,994 ft²
Rankings
-
By function
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-
By material
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#
2867
Tallest in the World
#
99
Tallest in
Europe
#
15
Tallest in
United Kingdom
#
14
Tallest in
London
Construction Schedule
1964
Proposed
1971
Construction Start
1980
Completed
1995
Recladding
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Owner
Hermes Investment Management Ltd.; BlackRock; Nathan Kirsh
Developer
Natwest
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.
Richard Seifert & Partners; GMW Architects
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.
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.
SVM Associates
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.
John Mowlem and Company Limited
CTBUH Initiatives
Activity at the CTBUH London Conference: Day Three
13 June 2013 - Conference
Tower 42 Technical Tour Report
13 June 2013 - Event
CTBUH Initiatives
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
Tower 42 Technical Tour Report
The tallest building in the United Kingdom from 1980 until 1991 and the first major skyscraper in the City of London, Tower 42 encapsulates the theme of the conference: Height and Heritage.
17 July 2011
London Report: Bucking a Western Trend?
Executive Director Antony Wood visited the UK in July for the inaugural meeting of a future CTBUH UK Chapter and other endeavors.
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