This is an office building located in Tokyo Shiodome Italian Town. The design concept "Mmodernized Masonry Work" reinterprets masonry construction, which was once transcended by the “Dom-ino System”, using modern technology. This approach not only achieves architectural uniqueness but also aims to enhance decarbonization, resilience, etc. And, in the lower part, a portico space is provided around the entire perimeter. The portico work as an buffer, and create the connectivity between interior space and the Italian Town, by extending the architectural space beyond the site boundaries.