Daehan Hospital was constructed over approximately three years, beginning with site formation works in 1906 and continuing through 1909 with the completion of the medical school and other facilities. Because land acquisition and construction progressed simultaneously, the project initially began with plans limited to the main building and wards, and it was not possible to establish a comprehensive master plan for the medical school, official residences, dormitories, and other auxiliary facilities. Instead, additional land was gradually acquired and developed, and further construction was carried out in phases. As initially integrated functions were differentiated, the complex expanded by functional zones. The clinical and educational functions housed in the main building were separated through the construction of the medical school, and the dormitory area within the medical school zone was later subdivided and expanded as an educational district during the period of the Joseon Government-General Hospital. While the overall site developed through zoned expansion, the original arrangement of the main building and wards followed a typical pavilion plan. This planning concept, which became a standard model of hospital layout in Europe and the United States in the late nineteenth century, was introduced to Daehan Hospital via Japan, reflecting contemporary Japanese hospital planning principles implemented through the architectural organization of the Ministry of Finance.