This is a concept drawing of Sky City, a proposal that would, if built, be the tallest building in the world at 838m. The construction company, Broad Sustainable Building say they could build it in 3 months, to put that in perspective that’s 5 floors a day! Sky City was originally planned to be located in the city of Changsha, Hunan in the south-central China. The idea may seem impossible as the current tallest building, the Burj Khalifa, took over 5 years to construct but Broad Sustainable Building have a pretty impressive track record having last year built a 30 storey building in 15 days and a 15 storey building in 6 days (YouTube link below). Sky City's plans included a hotel able to hold 1,000 people, a hospital, 5 schools and offices and house up to 17,000 residents. Ohh and did I mention it would have 17 helipads, basically making it a mini airport!
The proposed site for the building was cleared, but since it was proposed in 2013 no construction on the building has begun. Permitting with the Chinese Government has taken several years, and as of now there is no report that off-site fabrication of the parts, which would be necessary for construction of such a massive building in that timespan, has begun. The company has proposed building a number of similar structures around China to cut the costs of each building, but so far no progress has been made.
-Matt J 30 Storeys in 15 days video: (Really worth seeing!!) http://www.youtube.com/watch?v=Hdpf-MQM9vY Photo: http://www.constructionweekonline.com/article-19593-broad-sticks-to-90-day-worlds-tallest-target/#.UMidm4XePXU More info: http://newsfeed.time.com/2012/11/20/china-plans-to-build-the-worlds-largest-skyscraper-in-just-90-days/?hpt=hp_c4 http://en.wikipedia.org/wiki/Sky_City_%28Changsha%29