Nestled in the forest of the former Hongneung Forestry Experiment Station, the KDI (Korea Development Institute) International Training Institute annex stands out naturally, even with its ordinary form and texture, against the green woodland backdrop. Among various ways to arrange the required volume within the limited site, the chosen scheme preserves the frontality of the main building while protecting the grass and old pine trees on the northwest hillside. 

To ensure the larger annex mass does not overwhelm the main building yet serves as a backdrop to the landscaping, a regular grid was applied to the façade, with the garden reflected in glass bands to reduce its massive feel. The size difference between the office zone and the meeting zone is bridged by curved walls and flying girders, with columns echoing the vertical elements of the main building’s façade — subtly suggesting the natural landscape behind and drawing the eye toward it. The annex is currently used as the Korea Economic Development Exhibition Hall.