Chunghyodang House was the house of the famous civil minister Ryu Seong-ryong (pen-name: Seoae, 1542-1607) during the mid-Joseon Period. He occupied many government posts during his career, and as prime minister contributed to overcoming the difficult situation during the Japanese Invasion of Korea in 1592. His written works Jingbirok and Seoaejip are highly regarded as precious materials for studies on the Imjin Waeran (Japanese Invasion of Korea in 1592). Chunghyodang House is composed of a haengnangchae (servants’ quarters), sarangchae (men’s quarters) and anchae (women’s quarters). The sarangchae and anchae were built by his grandson, Ryu Won-ji (pen-name: Joljae, 1598-1647), while his great-grandson Ryu Ui-ha (pen-name: Nuljae, 1616-1698) rebuilt and expanded them at a later date. The haengnangchae, consisting of a main gate, rooms and storehouse, was built by his 8th-generation grandson Ryu Sang-jo (pen-name: Ilu, 1763∼1838). A long Haengnangchae is situated the west side as the front, the Korean character 'ㅁ' shape of Anchae at inner side and the ‘一’ shape of Sarangchae are arranged consecutively. The sarangchae, as a detached building which served as a reception room for male guests, consists of a sarangbang room, main hall, room and wooden floor from left. The anchae, occupied by the female of the house, consists of a kitchen in the north east, anbang (main room), main hall, and geonneonbang (a room opposite the main living room), and is shaped like the Korean character 'ㄱ'. Meanwhile, in front of the geonneonbang, which is linked to the sarangchae, are a wooden floor, a floor-heated room measuring two kan (a unit of measurement referring to the distance between two columns) , and a kitchen. A hanging board inscribed with the name Chunghyodang (‘hall of loyalty and filial piety’) hangs from the main hall of the sarangchae. It was written by Heo Mok (1595-1682), a famous master of calligraphy. The house has been preserved in its original form, and hence is regarded as an important asset for studies on private houses of the Joseon Dynasty.