Construction process is divided into pre-design and planning, design, construction, management. Pre-design stage is very important considering the influence on other subsequent works. Recently, it is being increased that the importance of information management and decision-making support at the pre-design stage, and related researches are being conducted. As part of this trend, the purpose of this study was to develop the interoperability of decision-making support system at the pre-design stage. It is tested that interoperability to detailed design of the existing system. As a result, shape information of the building was compatible exactly, but property information was not compatible. Through future studies about improving these problems and interlocking between this system and modeling tools, it will be supported decision-making of various project participants.