Sueojangdae Command Post(Treasure)
A command post, called a jangdae in Korean, is a type of pavilion from which a military commander could direct troop movements and observe the enemy during military exercises and wars. Namhansanseong Fortress originally had five command posts (Dongjangdae, Seojangdae, Namjangdae, Bukjangdae, and Oedongjangdae), but only Sueojangdae Command Post remains today. Located on the summit of Cheongnyangsan Mountain (482 m), it is the most splendid building among the remaining structures inside the fortress. This two-story pavilion building features a half-hipped roof: the lower floor measures five kan at the front and three kan at the sides, while the upper floor measures three kan at the front and two kan at the sides.
Notably, the roof is surrounded by double-layered eaves on both the upper and lower floors; a decorative tile is attached to the end of the hip rafter extension; dragon head-shaped roof tiles are attached to the ends of the hip ridge; and ornamental roof tiles are placed on the ridge of the roof. The pillars are placed on top of long, octagonal foundation stones with a height of 60 cm, while the ceiling features a column-head bracketing system. In 1751, the 27th year of the reign of King Yeongjo, the pavilion was extended to create a two-story structure, and its name plaques – “Sueojangdae” and “Mumangnu” - were made and hung outside and inside the building respectively.