Plans are well underway for the construction of the world’s tallest building.

The £4bn skyscraper will be built in Riyadh, the capital of Saudi Arabia, and is expected to stand a mammoth 2km-high. This will make it more than double both the 828m-tall Burj Khalifa in Dubai and the Jeddah Tower.

Foster + Partners beat a host of world-class international design names to win the record-smashing contract, which will see the building sit close to the King Khalid International Airport.

According to The B1M, a construction video channel, the Rise Tower’s 2km height equates to “around 500 storeys” which would “easily accommodate 100,000 people.”

This means the new tower could potentially hold more than some country’s entire populations, such as Seychelles, Andorra, Liechtenstein, among others.

It will be quite the feat for the London-based architectural firm, too.

The skyscraper easily dwarfs its current tallest scheme, the 423m JP Morgan Chase World Headquarters in New York - a whopping four times bigger.

The proposed build is the latest in a series of enormous developments in Saudi Arabia, many of which are involving UK practices.

These include a controversial $500bn smart city, and a tall crystalline skyscraper for the Trojena ski resort.

We may have to wait a little while for the construction of the world-defying structure.

According to reports, the Rise Tower has been earmarked for completion by 2030, which gives the Jeddah Tower just two years to enjoy being Earth’s tallest tower.