Located inside Changdeokgung Palace, Nakseonjae Hall is a one-story structure built in ikgong style (bird wing-shaped eaves placed on top of the pillars) with a hip tiled and gable roof. It has 6 kan in the front and 2 kan to the sides (kan: a traditional unit of measurement referring to the space between two columns; roughly 2-4 meters). It originally belonged to the nearby Changgyeonggung Palace, but came to be considered a part of Changdeokgung Palace in more recent years.

The hall was constructed in 1846 (12th year of King Heonjong’s reign) and it is collectively called Nakseonjae together with the adjacent Seokbokheon Hall and Sugangjae Hall.

Behind the building is a flower garden made by stacking large stones. The chimney, the flowers, and the oddly shaped stones harmoniously blend into one another to create an outstanding landscape gardening.