Described as Seoul's "last remaining, large-scale, long-term vacant site", Seoul Metropolitan Government has big plans to redevelop the former Yongsan train maintenance depot into a multi-complex international business district.

South Korea's Yongsan Business District covers a 495,000-square-metre land parcel on the north bank of the Han River and is split into three zones, including the International Business Zone for offices, Business Complex Zone with business support facilities, and the Business Support Zone, for residential and cultural use, as well as some offices

The project, being exhibited by Invest Seoul in Cannes, is a partnership between the national railway operator, the local government and Seoul Housing & Communities Corp, a leading residential developer.

At the centre of YBD are plans for a 100-storey "Landmark Skyscraper" building and an 80-storey tower in the International Business Zone for prime workspace. The Business Complex Zone and the Business Support zones will also have 60-storey and 40-storey buildings.

The business district, costing tens of billions of pounds, will also have a 1.1 kilometre pedestrian sky bridge, called the Sky Trail, that will link several buildings at the 45th floor level. Construction is due to begin in the second half of this year and finish in 2028.