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World Trade Center
New York City
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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).
526.7 m
/ 1,728 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."
417 m
/ 1,368 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.
413 m
/ 1,355 ft
1
2
3
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).
110
Official Name
The current legal building name.
World Trade Center
Type
Complex
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
Demolished
Country
City
Function
hotel / office
# of Hotel Rooms
825
Map of Buildings in Complex
Note: Only buildings that have GPS coordinates recorded are displayed.
List of Buildings in Complex
|
RANK
|
Name
|
Completion
|
Height
|
Floors
|
Function
|
|---|---|---|---|---|---|
| 1 | One World Trade Center | 1972 |
417 m / 1,368 ft |
110 | Office |
| 2 | Two World Trade Center | 1973 |
415 m / 1,362 ft |
110 | Office |
| 3 | Seven World Trade Center | 1987 |
174 m / 570 ft |
47 | Office |
| 4 | Marriott World Trade Center | 1981 |
74 m / 242 ft |
22 | Hotel |
CTBUH Initiatives
World Trade Center: One WTC Office Building Tour
28 October 2015 - Event
World Trade Center: Urban Domain Tour
28 October 2015 - Event
Videos
20 October 2016
Singularly Slender: Sky Living in New York, Hong Kong, and Elsewhere
Thursday October 20, 2016. Hong Kong, China. Carol Willis of The Skyscraper Museum in New York City presents at the 2016 China Conference Plenary 7:...
Research
08 September 2021
Interactive Study on The Global Impact of 9/11 on Tall Buildings
CTBUH Research
In the immediate aftermath of the terrible events of 9/11, the age of the skyscraper seemed to be at an end. After witnessing the collapse...
Global News
12 February 2019
Two World Trade Center in New York City May Rise Without an Anchor Tenant
One of the final pieces of the World Trade Center puzzle may be put into place—albeit in a somewhat risky fashion. Bloomberg reports that Larry...
Videos
20 October 2016
Singularly Slender: Sky Living in New York, Hong Kong, and Elsewhere
Thursday October 20, 2016. Hong Kong, China. Carol Willis of The Skyscraper Museum in New York City presents at the 2016 China Conference Plenary 7:...
17 October 2016
Structural & Geotechnic Engineering Q&A
Monday, October 17, 2016. Shenzhen, China. William O'Donnell, DeSimone Consulting Engineers; Dennis Poon, Thornton Tomasetti; SawTeen Seen, Leslie E. Robertson Associates, answer questions at the...
27 October 2015
From New York to Busan: Reflecting Culture in Urban Design
Overpopulation, climate change, aging infrastructure: the threats facing tomorrow’s cities are, in many ways, design problems. The challenges of today’s world have to be solved...
26 October 2015
Interview: Rafael Viñoly
Rafael Viñoly of Rafael Viñoly Architects is interviewed by Chris Bentley during the 2015 CTBUH New York Conference at the Grand Hyatt New York. Rafael...
Research
08 September 2021
Interactive Study on The Global Impact of 9/11 on Tall Buildings
CTBUH Research
In the immediate aftermath of the terrible events of 9/11, the age of the skyscraper seemed to be at an end. After witnessing the collapse...
28 October 2019
World’s Biggest (Tall) Buildings
Carol Willis, The Skyscraper Museum
In both professional circles and in the public eye, the subject of the World’s Tallest Building (WTB) has held the spotlight for more than a...
01 September 2018
Developments of Structural Systems Toward Mile-High Towers
Kyoung Sun Moon, Yale University School of Architecture
Tall buildings which began from about 40 m tall office towers in the late 19th century have evolved into mixed-use megatall towers over 800 m....
17 October 2016
Singularly Slender: Sky Living in New York, Hong Kong, and Elsewhere
Carol Willis, The Skyscraper Museum
This paper highlights a new 21st-century skyscraper typology – the very tall and slender residential tower – and analyzes the economic, engineering, and urbanistic forces...
11 September 2011
The Global Impact of 9/11
Leader Interviews by Jan Klerks, CTBUH
Just as many Americans still remember exactly where they were when they heard the news that US president John F. Kennedy had been shot, most...
01 July 2011
Challenging Attitudes on Codes and Safety
José L. Torero, BRE Centre for Fire Safety Engineering
The history of technological evolution is filled with failures and the lessons learned from them. Many will even claim that “design by disaster” is one...
01 July 2011
How World Trade Center Affected Tall Building Life Safety Design
Carl Baldassarra & Jon Evenson, Rolf Jensen & Associates, Inc.; Simon Lay, WSP UK
Building Design and Emergency Management = Carl Baldassarra and Jon Evenson Fire Engineering - Simon Lay
01 September 2008
Trends, Drivers and Challenges in Tall Buildings and Urban Habitat
Antony Wood, CTBUH
This paper outlines the major influences on tall building design in the early stages of the 21st Century. At this unprecedented time in terms of...
12 June 2008
The Tallest Buildings in the World: Past, Present & Future
CTBUH Research
Over time, the average height of the 100 tallest buildings in the world has been steadily increasing. However, by 2010, this average height will have...
16 October 2005
Bridging the gap: An analysis of proposed evacuation links at height in the World Trade Centre design competition entries
Antony Wood & Philip Oldfield, University of Nottingham
This paper analyses the skybridge links of the numerous re-design proposals for the World Trade Centre Towers, with the aim of establishing their advantages and...
CTBUH Initiatives
Filter by
28 October 2015
World Trade Center: One WTC Office Building Tour
CTBUH 2015 delegates toured One World Trade Center Office Building which is the current tallest building in the Americas.
28 October 2015
World Trade Center: Urban Domain Tour
CTBUH 2015 delegates toured 30 Park Place which will house the Four Seasons Hotel and Private Residences Downtown New York.
20 November 2014
CTBUH Israel Plays Key Role at Building Center Summit
The CTBUH Israel Chapter was a major presence at the annual Building Center Summit, in Eilat City, drawing over 2,000 people.
6 September 2011
9/11 – Ten Years on: CTBUH Reflections
In the week that we mark the tenth anniversary of the 9/11 events and the collapse of the World Trade Center towers CTBUH reflected on the impact on tall buildings.
16 December 2009
Height: The History of Measuring Tall Buildings
This article describes some of the events which took place in the Council's long, and sometimes complex, history of measuring tall buildings.