This plan would be disastrous to the various parks and green space around Seoul if approved:

South Korea is considering opening up greenbelt zones in the Seoul metropolitan area to make more land available for housing as part of efforts to help resolve the country’s housing supply shortage in the densely populated area, the transport ministry said Wednesday.
The Ministry of Land, Infrastructure and Transport said it has formed a task force with the Ministry of Economy and Finance and the Seoul city, Gyeonggi and Incheon regional governments to discuss ways to supply more homes in the capital city and adjacent areas.
In less than a week, the government has changed its stance toward easing the construction ban in the development restriction areas designated by the country to resolve housing shortage problems.
Yonhap
You can read more at the link, but does anyone still think all of Yongsan Garrison will become a park?