World’s Tallest Skyscraper To Be Built…In 90 Days

Chinese construction company Broad Group has announced ambitious plans to construct the world’s tallest in an implausibly swift 90 days (© Image: Broad Group via Gizmag)

China is well known for its mind-bogglingly fast-paced construction, but its latest claim is truly one for the record books.

Sky City, an 838-meter (2,750-ft) building to be built by Chinese construction company Broad Sustainable Building (BSB), of  Broad Group, will not just be the tallest skyscraper on the planet, won’t just be “earthquake-proof,” won’t just implement a sustainable design approach – it will go up in only 90 days.

Skeptical? BSB isn’t. They’ve used their building technique (which involves pre-fabricating and assembling up to 95% of the materials in modular form before construction even begins) to assemble a 15-story building in 6 days and a 30-story hotel in 360 hours, CNN reports. As for safety concerns, BSB has built a 30-story prototype that withstood a simulated magnitude 9 earthquake — whether the 220-story Sky City will be as secure remains to be seen, but BSB certainly seems confident.

More fast facts and images, after the break…

Story via GizmagCNN

The Sky Tower stacks up to the opposition. This image (and lower floor-count) dates back to a 2010 concept document (Image: Broad Group via Gizmag)

Fast Facts

  • According to Gizmag: “If the target is met, the 838-meter (2,750-ft) “” will take only a twentieth of the time that the Burj Khalifa, the world’s current tallest building, took to construct, and will stand 10 meters (33 feet) taller still upon completion.”
  • Sky City One advertises itself as an earthquake-resistant, carless city which will accommodate approximately 100,000 people and provide retail and leisure facilities.
  • Sky City One has been designed with 15-cm (6-inch) thick exterior walls and a quadruple glazing in order to improve its insulation, allowing it to consume a fifth of the energy of a conventional building its size.
  • The Sky City One will contain 1,000,000 sq m (10,800,000 sq ft) of usable floor space, have 220 floors, and 104 separate elevators.
  • According to CNN, the Sky City One is projected to cost US$628 million. (Compare that to the $1.5 billion Burj Khalifa cost).
  • Work should commence in November 2012 through to the following January, but final approval from Chinese authorities is yet to be granted.
Reach for the sky: the world’s tallest buildings, once the 838-meter Sky City is completed, projected for January 2013. Image via CNN.

Cite: Quirk, Vanessa. "World’s Tallest Skyscraper To Be Built…In 90 Days" 20 Jun 2012. ArchDaily. Accessed 22 May 2015. <>
  • Samuel AB

    Le Corbusier would be proud.

  • Xcalibre

    It’s look so massive and ugly:(

  • Jared

    Hugh Ferris would be proud!!

  • Lærke Philipsen

    No daylight in the middle of the building…?! That’s not good architecture!

  • Kyle

    Very minolithic

  • TDA

    This un-ending contest for the tallest building is about as interesting as another Everest ‘summit’.

  • Andrew

    Why is the Chicago skyline used as the backdrop for the first rendering?

    • JK

      Haha great observation! I wouldn’t put it past that country to build their own Chicago.

    • matt

      Haha. I didn’t even notice the first time. The Hancock observatory — offering beautiful views of Lake Michi…..steel walls.

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  • mathias

    also looks like it was designed in 90 seconds.
    When will this ridiculously immature ‘my tower is higher than yours’ competition end?

  • Desin

    Great record, biggest and fastest %&#&#”#! it´s hard to understand how something that shouldn´t be builded can be eco friendly, it´s not only a matter of numbers. What about the nearby environment, sun light and traffic solutions. The render whith the Chicago sky line makes it clear they don´t care about this. They just wan´t to show how much bigger it is.

  • mike007

    Looks like a copy of unwanted Stalin’s gift – Palace of Culture in Warsaw

  • Benito Mussolini


    As much as i want to hate on the project, affordable vertical living which offers a high quality of life to the masses is what China needs now.

  • Walt

    China’s mindset has more to do with employing its people than involving itself in ridiculously immature tower competitions. Indeed, China is competing in a much broader sense.

  • archi

    So… where’s the architecture in this? Of course, architecture has nothing to do with it.
    Ridiculous waste of everything.

  • Sanji Nami

    Won’t be surprised if they did actually build it in 3 months. I mean look at that shit. Not only will it be the tallest skyscraper in the world, it’ll also be the most generic, plain looking building.

  • fingersxed

    i misread.. tallest building that will last for 90 days….

  • sander

    if they can and will do it, it will be a worldwide sensation and a major achievement in construction technology. world class architecture has obviously not been a goal here, but that is not the point.