A Chinese construction company aims to build the tallest building in the world in only 90 days.

Broad Sustainable Building(BSB) claims the 838m-tall SkyCity One will be assembled in the southern Chinese city of Changsha from prefabricated materials built offsite. The building will be 10m taller than the Burj Khalifa in Dubai, currently the tallest manmade structure on earth.

SkyCity One, with a rather imposing design, will contain 112,000m^2 across 220 storeys, containing a mix of residential, commercial and retail space and capacity for between 70,000 to 120,000 people. BSB estimates the cost of the project to be roughly £400 million, a surprisingly low figure considering it cost £967 million for the Burj Khalifa, and other megatall buildings around the world tend to have budgets around the £1 billion mark. The company claims that their unique construction method, with 95 percent of the building completed before they’ve even broken ground on the foundations, will keep costs down.

Not a beautiful building by any means, but still an impressive feat nonetheless.