China Building World’s Tallest Building In Just 90 Days

China is building the tallest building in the world in just 90 days. The structure, called Sky City, is set to be completed by March of 2013.

The tower will be 2,749 feet tall and boasts 220 floors, reports Gizmodo. It will grow to its full height in Changsha city by the Xiangjiang river in just 90 days.

The construction company states that they will be able to complete five floors each day of construction, a number that seems impossible, but the company assures it can be done.

They say that the building has been designed by some of the engineers who worked on the Burj Khalifa and is the same firm that built a 30-story hotel in 15 days — which is still standing and in perfect working condition.

The unbelievably fast construction is possible because of a prefabricated modular technology developed by Broad Sustainable Building, which has already built 20 tall structures in China so far (including the 30-story hotel).

Sky City, once completed, will be mostly habitable, unlike the Burj, which boasts a massive height of 2,719 feet. The massive Chinese skyscraper will be able to house 31,400 people of both “high and low income communities.”

CNet notes that Sky City will require 220,462 tons of steel and has a construction cost of $1,500 per square meter. It is also being built to withstand a 9.0-magnitude earthquake.

Some Chinese media are speculating that the structure will actually take up to 210 days to complete, but the company insists it will be able to complete it in 90 days. Foundation work on the world’s tallest building-to-be is set to begin at the end of the month after the Chinese government approves the project.

Along with dwellings, designers are planning on making the building suitable for multiple school systems, offices, retail shops, restaurants, and hospitals.