The Administrative Support Center built in the administrative town of the Sejong Multifunctional Administrative City provides a global service environment to government agencies relocating to Sejong City by creating communication channels through international conferences and banquet facilities. The “Breath Core” that provides life to the Government Complex has the meaning of green lungs and it is the main concept of the technical proposal. The building, aiming to be a low-cost and long-life structure, applies an integrated intelligence-management system in all areas and takes user-centered design improvements as well as performance optimization for value enhancement in all stages into account.