The concept design of Beijing's new airport, which will be the world's largest passenger airport when it is fully constructed, was completed recently, said a report from ccaonline.cn on Monday

The terminal is expected to boast 82 independent gate positions, covering a length of 5 km and an area of 700,000 square meters.The design is a cooperative project by French architectural firm ADP Ingenierie and British Zaha Hadid Studio, who won the bid last November.

Construction of the new airport started on Dec 26. The project will cost 79.98 billion yuan ($13.11 billion) and take about five years to complete.

The new hub, which has not been officially named, is in Beijing's Daxing district and is expected to become operational in 2019.