The design of the Octagonal Building showcases a unique blend of cultural significance and practical market planning. The first-floor layout features eight octagonal columns arranged in a circular pattern, supporting the entire structure while creating an open and seamless space. The three entrances efficiently manage foot traffic, with one connecting to the rear Cross Building, further enhancing the market's flow and functionality. This well-thought-out spatial arrangement ensures clear stall displays and maximizes overall efficiency.
The steel trusses on the second floor are the architectural highlight of the building. These trusses extend outward in a radial pattern, resembling a massive umbrella that covers the roof. Not only do they provide excellent structural support, but they also make the space appear more open and bright. Since Taiwan lacked the capacity to produce such complex and sturdy steel materials at the time, the trusses were specially shipped from Japan and meticulously installed by Japanese architects and craftsmen. The roof, constructed from diverse materials such as stone tiles, Japanese black tiles, and metal, reinforces the structure while demonstrating the architects’ innovative use of materials.
Furthermore, the dormer windows on the roof complement the radial steel trusses, seamlessly blending Western architectural styles with Japanese craftsmanship. These elements enhance the building’s aesthetic appeal and functionality, exemplifying the architectural brilliance of the era. From the thoughtful market layout on the first floor to the engineering marvel of the steel trusses on the second floor, the Ximen Red House reflects the significant contributions of Japanese colonial architecture to Taipei’s modernization and remains a landmark of culture and art today.
