CTBUH confirms the height of One World Trade Center (2023)

Chicago, Illinois – 12. November 2013 –

The Council on Tall Buildings and Urban Habitat (CTBUH) convened its Height Committee in Chicago on November 8 to review its criteria for determining the official height of buildings and to review the official height of One World Trade Center in New York decide.

The Elevation Committee came to a consensus that the height of One World Trade Center at its architectural peak is 1,776 feet (541.3 meters).

Note that because One World Trade Center is still unfinished and has not yet received its Certificate of Occupancy, it cannot yet be included in the CTBUH ranking as a "completed building," but its height is no longer in dispute.

In homologating the height of this building to the CTBUH criteria, two key issues were discussed.

(Video) Spire topped One World Trade Center tallest building in US NBC News

  • The type of mast structure at the top of the tower.
  • The reference line (lower point) from which the elevation to the architectural apex was determined.

This decision was made through consideration of the design and construction plans and continued through dialogue between the 25 members of the Heights Committee. The committee received a 15-minute presentation from the One World Trade Center owner/design team, including the project's lead architect, David Childs of Skidmore, Owings & Merrill LLC (SOM) and Ken Lewis, SOM's project manager.

"We are very pleased with the detailed information the team has presented, particularly the finding that the structure on top of the building is a permanent architectural feature and not a functional engineering device," said Timothy Johnson, CTBUH. President and design partner of the NBBJ.

"The One World Trade Center project, as they have explained to us, reinforces its role as a symbol of the revitalization of this important site," said CTBUH Executive Director Antony Wood. "The lighthouse's light-bearing spire, in particular, shining at the symbolic height of 1,776 feet, is particularly poignant and reminiscent of the equally symbolic Statue of Liberty lighthouse across the water."

The council measures the height of buildings in three categories:

  • Height to the architectural peak
    Height is measured from the level1 of the lowest significant2 exterior-3 pedestrian entrance4 to the architectural top of the building, including towers but excluding antennas, signage, pylons, or other technical equipment, and is most widely used and is used to establish the "Tallest Buildings" classifications of the World" by the Council on Tall Buildings and Urban Habitat.
  • highest inhabited floor
    The height is measured from the lowest significant2 exterior 3 pedestrian entrance level1 to the finished floor level of the highest occupied floor6 inside the building.
  • Height to tip:
    The height is measured from the level1 of the lowest significant2 exterior pedestrian3 entrance3 to the highest point of the building, regardless of the material or function of the tallest element (i.e. including antennas, masts, signage, etc.). . and other functional elements). technical equipment).
  • "We believe this exercise validates our criteria, and we are grateful to the One World Trade Center team for taking the criteria seriously, participating in the process, and traveling to present their design to us," said Peter Weismantle, Chair of the CTBUH Heights Committee and Director of Supertall Building Technology for Adrian Smith + Gordon Gil Architecture. “There will always be projects that call these criteria into question. It is just as important to seize the opportunity these challenges present to reassess the criteria themselves as it is to validate the height of an individual building.”

    The projected height of One World Trade Center was set at 1,776 feet to commemorate the year of the United States' independence from Britain and to affirm the principles behind the nation's founding in the face of the attacks that devastated the original world. on 09/11/2001.

    (Video) CTBUH Chicago Press Conference: One World Trade Center to be Tallest Building in US

    Due to design changes that resulted in the removal of the architectural paneling around the mast at the top of the structure, it was unclear whether the structure was actually a "spiral," a vertical element that completes the architectural expression of the building and it is intended to be permanent. , or whether it was an antenna - technical-functional equipment that was subject to changes.

    The distinction between crenellation and antenna makes a distinction in the "height to architectural spire" measurement, which includes crenellations but not antennas, signage, flagpoles, or other functional engineering equipment. Determining the tallest structure as "functional-technical" could have had a significant impact on One World Trade Center's ranking relative to other buildings, since the next obvious point to measure "architectural apex" is the building's roof slab, the 1,334 , would be feet, 8 inches - 441 feet, 4 inches less than claimed.

    The One World Trade Center team provided a detailed explanation of the design intent. The gentleman. explained that the lighthouse at the top of the mast consists of a group of light emitting diodes (LEDs) embedded in acrylic cylinders. Two reflectors rotate around the lights on a vertical axis, projecting the rays outward as horizontal lines reminiscent of a lighthouse. The mast's height is also symbolically significant, as it increases the building's total visible height from the top of its steel parapet by 1,368 feet, the height of the original World Trade Center Tower 1.

    Atop the lighthouse is an FAA-mandated red warning light topped by a 16-foot lightning rod. Based on Mr. Childs' statement, the CTBUH Heights Committee believed that these items could be considered "technical-functional equipment" and therefore were not included in the "height to the top of the architectural supervisor" calculation.

    The second problem with 1WTC was where the 1776 foot measurement was taken. The building has four entrances, one on each side. Three of these entrances are level with the 9/11 Memorial Plaza, which is level with the base of the original World Trade Center towers. These three entrances lead directly to the elevator lobby, while a fourth entrance is 5 ft 8 in lower than the Vesey Street lobby due to the change in slope from south to north. Measured from this point, the height to the architectural pinnacle would be 1,781 feet 8 inches.

    The gentleman. Childs showed plans showing that the main entrance to the building was the south entrance overlooking 9/11 Memorial Square and that the north entrance on the lower elevation does not provide direct access to elevators but requires stairs or the use of an elevator. . Disabled access to the lobby. To be considered "significant", an entrance must be "predominantly above the existing or pre-existing level and provide access to one or more of the building's main uses via elevators". Therefore, the committee did not consider the lower Vesey Street (North) entrance "significant".

    (Video) NYCs 1 World Trade Center Projected To Be Tallest Building in US - ABC News

    "I am completely satisfied that this building has achieved what it set out to do," said Childs. "Since 2005, we've adopted the rules of the board and built on them. It's an important statement for all of us."

    Upon completion and occupancy, scheduled for early 2014, 1WTC will surpass Chicago's Willis (formerly Sears) Tower as the tallest building in North America. At 1,776 feet/541 meters tall, 1WTC will likely be the third tallest building in the world when completed, after the Burj Khalifa in Dubai (2,717 feet/828 meters) and the Makkah Royal Clock Tower in Mecca, Saudi Arabia. 1972 feet/601 meters). Meter).

    About the Council on Tall Buildings and Urban Habitat:
    Established in 1969, the Council's mission is to disseminate multidisciplinary information on tall buildings and sustainable urban environments, to maximize the international interaction of professionals involved in creating the built environment, and to make the latest knowledge available to professionals in a useful way .

    The Council is an international non-profit organization supported by professionals in the fields of architecture, engineering, planning, development and construction. The CTBUH is the world's leading body in the field of high-rise buildings and the internationally recognized source of information on high-rise buildings. He is the arbiter of the criteria by which the height of the tall building is measured and thus the title of "tallest building in the world" is determined.

    About the Heights Committee:
    The CTBUH Height Committee was formed to set and, if necessary, refine the official height criteria for tall buildings. As such, the Height Committee meets annually to discuss the latest developments in the building construction industry and possible additions or revisions to the text of the Height Criteria. The committee is made up of influential professionals working in the fields of architecture, engineering, design, development and construction of tall buildings and urban living spaces.

    The meeting was attended by 25 voting participants representing 22 companies from 19 cities in 13 countries.

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    The affiliations were:

    Architects: 6
    Structural engineer: 5
    Contractor/Supplier: 5
    Academics: 3
    Façade consultant: 2
    Engineer MdEP: 1
    Firefighter technician: 1
    Other advisors: 2

    For more information please contact us:
    Daniel Safarik
    Texts / Media Relations


  • Level: Finished floor level at the lowest entry threshold.
  • Important: The entrance must be predominantly above the existing or pre-existing level and allow access to one or more main uses of the building via elevators, as opposed to commercial uses on the ground floor or other uses only connected/connected to the immediately adjacent outdoor environment . Therefore, entrances through underground or similar places are generally not detected. It should also be noted that the driveways to the car park and/or auxiliary/support areas are not considered essential access points.
  • Exterior: The entrance must be directly outside an exterior area at this level that is open to the air.
  • Pedestrian: Refers to ordinary users or occupants of the building and is intended to exclude service, support or similar areas.
  • Technical-Functional Equipment: Intended to recognize that technical-functional equipment can be removed/added/changed based on prevailing technologies, as is often the case in tall buildings (e.g. antennas, signage, wind turbines, etc.). added, abridged, lengthened, removed and/or replaced).
  • Highest Occupied Floor: To identify conditioned spaces designed to be safe and legal for permanent occupancy by occupants, workers or other users of the building. Service or mechanical areas occasionally accessible for maintenance etc. are not included.
  • For more information please contact us:
    Daniel Safarik, CTBUH Editor and Media Relations

    Download the full PDF with imagesHere.

    (Video) CTBUH Media: One World Trade Center Rises Above Empire State Building

    About Illinois Institute of Technology (IIT)

    Founded in 1890, IIT is a doctoral university offering degrees in engineering, science, architecture, psychology, design, humanities, business and law. IIT's technology-focused interprofessional curriculum is designed to advance knowledge through research and scholarship, promote inventions that improve the human condition, and prepare students around the world for a lifetime of professional achievement, service to society, and individual fulfillment . Visit www.iit.edu.

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    What is the height of One World Trade Center? ›

    Soaring to a symbolic 1,776 feet — it is the Western Hemisphere's tallest building, and already an iconic New York landmark. With entrances on all 4 sides of the building, One WTC has been designed to smoothly integrate traffic of visitors & office tenants.

    What is significant about the height of One World Trade Center 1776 ft )? ›

    Interesting Facts in Easy English. With the observation deck and antenna, the One World Trade Center (One WTC) stands 1,776 feet tall. This number represents the year the Declaration of Independence was signed (July 4, 1776).

    How tall will the one trade center stand including its broadcast antenna? ›

    One World Trade Center, also known as One World Trade, One WTC, and formerly Freedom Tower, is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City.
    One World Trade Center
    Architectural1,776 ft (541.3 m)
    Tip1,792 ft (546.2 m)
    Antenna spire407.9 ft (124.3 m)
    36 more rows

    Which is taller World Trade Center or One World Trade Center? ›

    Here are some facts and figures about One World Trade Center. The building is 1,776 feet in height, which was by design to have some historical significance. The height pays tribute to the United States being born in 1776. The old Twin Towers were 1,368 feet.

    Is the One World Trade Center the same height as the twin towers? ›

    From base to parapet, the building is also the same height as the twin towers – 1,368ft [417m] – before its crowning mast takes it up to the symbolic height of 1,776ft [541m], reflecting the year of the signing of the Declaration of Independence and making it the tallest tower in the western hemisphere.

    Is the new World Trade Center same height? ›

    The rooftop parapet of the building, often referred to as Freedom Tower, will be 1,368ft - exactly the same height as the original One World Trade Center. But when all 104 floors of the new skyscraper are finished, including the antenna, One World Trade Center will be slightly taller than its predecessor.

    Does height matter for TV antenna? ›

    Higher is better: 10-20 feet off the ground is ideal. Try to avoid obstructions such as tall buildings, forests or hills, which can weaken signals before they get to your antenna. You'll need to be able to point your antenna, even if it's multidirectional, at the source of the TV signal for the best reception.

    Do antennas count as building height? ›

    The Council on Tall Buildings and Urban Habitat (CTBUH) generally counts architectural spires in determining official building heights, but it doesn't include “antennae, signage, flag poles,” etc.

    How tall would One World Trade Center be without spire? ›

    Without the spire, the Trade Center would only stand 1,368 feet tall.

    Why does One World Trade Center have 94 floors? ›

    94-99 are included in the mechanical floors because they are taller in height than the typical office floors.” In other words, 1WTC is the equivalent of 104 floors, but it's actually 85.

    Which is taller Sears Tower or One World Trade Center? ›

    The One World Trade Center is higher than Chicago's Willis Tower, also known as Sears Tower (the highest before the New York skyscraper was completed, with 442 metres in height), thanks to its 124 metres-tall antenna, even if this element isn't usually taken into consideration when establishing a building's height, ...

    Is the One World Trade Center the tallest building in New York? ›

    Construction for the building started in 2006. On April 30, 2012, One World Trade Center became New York City's tallest structure, when it surpassed the height of the Empire State Building. On May 10, 2013, the last piece of the skyscraper's antenna was put on, making the building's height 1,776 feet (541 m).

    How many stories tall were each of the twin towers of the world Trade Center? ›

    At 110 stories each, 1 WTC (North Tower) and 2 WTC (South Tower) provided nearly 10 million square feet of office space for about 35,000 people and 430 companies.

    What is on top of the One World Trade Center? ›

    The observatory rests at the top of One World Trade Center, also called Freedom Tower. Finished in 2014, Freedom Tower dominates the lower Manhattan skyline at a height of 1,776 feet. The building itself is about 1,300 feet tall, paying homage to the original Twin Towers, which were the same height.

    Why is the One World Trade Center important? ›

    The complex—located at the southwestern tip of Manhattan, near the shore of the Hudson River and a few blocks northwest of Wall Street—was built by the Port Authority of New York and New Jersey as a central facility for businesses and government agencies involved in international trade.

    How close were the Twin Towers to each other? ›

    The 110-story buildings were more than a quarter-mile high, and the two buildings were about 200 feet apart.

    Did the World Trade Center have a 13th floor? ›

    The twin towers did have a 13th floor, as does their replacement, One World Trade Center.

    Why weren't the Twin Towers rebuilt? ›

    Due to the completion of One, Three, and Four World Trade Center, as well as the memorial and museum, the project was very unlikely to be built. Bjarke Ingels, who was selected as the architect for Two World Trade Center's new design, stated that he would have rebuilt the World Trade Center if it were up to him.

    Was the Empire State Building taller than the Twin Towers? ›

    At 1,250 feet (381 m), the 102-story Empire State Building in Midtown Manhattan, which was finished in 1931, stood as the tallest building in the world from its completion until 1970, when construction on the 1,368-foot (417 m) North Tower of the original World Trade Center surpassed it.

    What is best height for TV viewing? ›

    Experts recommend that the middle of your TV should be at eye-level while seated. This equates to about 42 inches from the floor to the center of your TV. As with other things, you'll find that there is a general rule that can be applied to most, but not all, situations.

    What is best height for TV off the floor? ›

    The common rule is that a 42” TV should be mounted about 56 inches from the floor to the center of the TV, a 55” should be 61 inches, a 65” should be 65, and a 70” should be 67 inches from the floor to the middle of the TV. As you can see, the larger the television, the higher it should be hung.

    Does WIFI antenna height matter? ›

    High Gain Antenna Placed Too High

    Directional, high gain omni-directional Wi-Fi antennas are used and placed on a high ceiling. Outcome: These antennas have narrow beams pointing sideways, therefore, significant overshooting and even more co-channel interference takes place.

    How tall can my antenna mast be? ›

    Although there is no absolute height limit for antenna towers, both agencies have established a rebuttable presumption against structures over 2,000 feet above ground level.

    How far can a TV antenna be from the TV? ›

    While indoor antennas can pick up channels from broadcast stations within a 20-30 mile radius, the reach of an outdoor antenna is about 60 to 80 miles.

    What was the tallest building before the World Trade Center? ›

    The towers' construction ended the Empire State Building's 41-year run as the tallest building in the world. They were replaced by Chicago's Sears Tower the following year, an indication of the rising trend of supertall construction.

    Why were the Twin Towers so tall? ›

    Designed to be very tall to maximize the area of the plaza, the towers were initially to rise to only 80-90 stories. Only later was it decided to construct them as the world's tallest buildings, following a suggestion said to have originated with the Port Authority's public relations staff.

    What building replaced the Twin Towers? ›

    One World Trade Center officially opens in Manhattan on November 3, 2014. The new tower, along with the rest of the World Trade Center complex, replaced the Twin Towers and surrounding complex, which were destroyed by terrorist attacks on September 11, 2001.

    What was the occupancy of the World Trade Center on 9 11? ›

    At 110 stories each, 1 WTC (North Tower) and 2 WTC (South Tower) provided nearly 10 million square feet of office space for about 35,000 people and 430 companies.

    Who owns World Trade Center? ›

    Larry A. Silverstein (born May 30, 1931) is an American businessman. Among his real estate projects, he is the developer of the rebuilt World Trade Center complex in Lower Manhattan, New York City, as well as one of New York's tallest residential towers at 30 Park Place, where he owns a home.

    What is the tallest building in the US 2022? ›

    Height of the tallest skyscrapers in the U.S. as of 2023 (in meters)
    CharacteristicHeight in meters
    One World Trade Center (New York City, 2014)541
    Central Park Tower (New York City, 2020)472
    Willis Tower (Chicago, 1974)442
    111 West 57th Street (New York City, 2022)435
    9 more rows
    5 days ago

    What is the 4th tallest structure in the US? ›

    The fourth tallest building in the US is 111 West 57th Street, also called the Steinway Building. It is one of the most recent skyscraper additions to the NYC skyline and also the skinniest.

    What are the tallest Twin Towers? ›

    In 1996, after the spires had been attached to the buildings (and each had thus reached its full height), the Petronas Twin Towers were declared the world's tallest buildings, eclipsing the former record holder, the 110-story Sears (now Willis) Tower in Chicago.

    What's the tallest building in NYC today? ›

    What Is the Tallest Building in NYC? The tallest building in New York, NY, is One World Trade Center, at 1,776 feet (or 541 meters).

    How many floors is the One World Trade Center? ›

    As the tallest building in the Western Hemisphere, One World Trade Center stands 1,776 ft. high offering 360-degree views of New York and New Jersey. The building itself is 1,268 ft. (same as the original Twin Tower) with 104 floors, but with the spire, it soars to be the fourth-tallest building in the world.

    What building is 1776 ft tall? ›

    One World Trade Center (also known as One WTC or Freedom Tower) is the main building of the new World Trade Center complex in Lower Manhattan, New York City. The building is 1,776 feet (541 m) tall making it the tallest building in the Western Hemisphere.

    How many stairs does the One World Trade Center have? ›

    One World Observatory at One World Trade Center will host the T2T Tower Climb where close on 1,000 runners will ascend the 104 floors and a lung-busting 2,226 steps of the building that symbolizes strength, hope and the resiliency of the American spirit after 9/11.

    Did the world Trade Center have a 13th floor? ›

    The twin towers did have a 13th floor, as does their replacement, One World Trade Center.

    What are the 4 tallest buildings in the US? ›

    Tallest buildings
    NameLocationHeight m (ft)
    1 Manhattan WestNew York City40.7519°N 73.9979°W995 ft (303 m)
    Wells Fargo PlazaHouston 29°45′30.17″N 95°22′5.81″W992 ft (302 m)
    4 World Trade CenterNew York City 40°42′37.36″N 74°0′42.88″W978 ft (298 m)
    Comcast CenterPhiladelphia 39°57′17.21″N 75°10′6.73″W296 m (971 ft)
    56 more rows

    What is the tallest building in the United States right now? ›

    United States' tallest buildings 2023

    What is the tallest building in the United States in 2023? With 541 meters of height, the One World Trade Center in New York was at the top of the ranking. The highest skyscraper outside New York City, was the Willis Tower in Chicago, formerly known as Sears Tower.

    Who has the tallest buildings in the United States? ›

    New York City skyline with the One World Trade Center Tower. Located in Lower Manhattan, One World Trade Center holds the record as the tallest building in the United States and the sixth-tallest in the world.


    1. CTBUH 14th Annual Awards - Yoram Eilon & Kenneth Lewis, One World Trade Center, New York City
    2. Today: High Stakes, Does New York Now Have Tallest Building?
    3. CTBUH 2012 Shanghai Congress - T10 Panel Discussion, "How High Can We Go (and Why Should We?)"
    4. 1 World Trade Center named as tallest US building, beating Willis Tower
    (AP Archive)
    5. CTBUH 2011 Seoul Conference - Nicholas Holt, "One World Trade Center"
    6. CTBUH 12th Annual Awards - Henry Cobb, "Lynn S. Beedle Lifetime Achievement - A Lifetime's Work"
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