Bukchon, the residential area for high circles constructed during the Joseon Dynasty which had not changed very much until the 1920s, changed its urban construction to the modern style in the 1930s. Housing operation companies bought large lots, forests and fields in Bukchon and constructed hanoks of medium and small scale in this place. All of the residential area of hanoks are located at 11, 31, 32 of Gahoe-dong, 35 Samcheong-dong, and 135 Gye-dong, where hanoks are standing closely together. Hanoks in Bukchon, which are called "reformed hanoks" since they are equipped with glass gates in daecheong (wooden-floored hall), have been equipped with new materials, such as shades of galvanized steel sheets on the eaves.
Hanoks in Bukchon were built using standardized timers supplied by timber mills since they had to be constructed in large quantities.
There are two chief characteristics of hanoks in Bukchon: they employ the "evolved structuring method" and emphasis "the trend of decorative work." They do not have complete elegance since they have low mulmaes (the slope of the roof), guldoris (round beams) and gyeopcheomas (double eaves), and many partitions in the narrow space between pillars.