This study is to analyze site layout traditional government office buil-ding of Seocheongun(舒川郡) Eupchi(邑治) focused on the conditions of a location, also look into the demolition and adaptive reuse of government office in Modern Period. Seocheon-Eupseong(舒川邑城) is a mountain fortress including valleys, and the south gate was constructed for the passage and drainage. Topo- graphy of the inside Town wall is mainly slope except the south gate site, and therefore government offices(Gwana) were laid out to seek available land independently, individually. On the other hand, dwelling of Eupchi was distributed outside of the south gate widely. Dongheon(東軒) which is center space of Eupchi was located innermostly, far from the south gate to emphasize a hierarchy with entrance flow, but was reduced on the symbolic aspect through separate location. Gaeksa(客舍) was located to the south gate, Jakcheong(作廳) which is office building of Yukbang(六房) was located nearby Gaeksa block, and Hyangcheong(鄕廳) is differentiated by locating the neighborhood of the south gate. And Gungwancheong(軍官廳) was located nearby marketplace due to the close dependence of organization and site layout. Gaeksa which is to enshrine Jeonpae(殿牌) was temporarily used with elementary school, Dongheon was built in the 1920’s in Japanese wooden structure style, and Jakcheong, Hyangcheong, Jangcheong(將廳) were con- verted with the military and the police administration, after that time was changed into a financial association. Chucheong(秋廳), namely Hyeongricheong(刑吏廳) was converted with a financial office, a financial association, a post office, after that time was demolished.