CHINESE builders have ambitious designs on erecting the world’s tallest skyscraper, soaring more than more 3,000 feet (900 metres) into the heavens.

The Phoenix Towers, planned for the central city of Wuhan, is set to be built on a footprint of 70,000 square meters, under the direction of London-based Chetwoods Architectural Firm.

Builders hope to break ground next year and be done in as little as three years.

The taller of the side-by-side, $2 billion Phoenix Towers structures is going to be one kilometre high, designers said. That would top the world’s current tallest building — the Khalifa Tower in Dubai, which is 830 metres high.

Lower floors of Phoenix Towers, which bear a modernistic resemblance to the Eiffel Tower in Paris, would be apartments and businesses, while upper levels would be used as a huge recycling plant.

The neighbouring structures would include solar power, wind turbines and an air-cleaning and filtration system.

Phoenix Towers might not have the title of world’s tallest structure for long.

Builders in Saudi Arabia have plans for the Kingdom Tower in the city of Jeddah. That building would stand one kilometre tall — thus equalling Phoenix Tower — and could be done by 2020.