Development and Application of Building Circularity Assessment Tool Based on Building Information Modeling

The transition to a circular economy in Taiwan’s building sector is constrained by the lack of standardized, quantitative assessment methods. To address this, this study establishes a novel, localized theoretical framework integrating the Material Circularity Index (MCI) and the Madaster system, implemented via an automated Building Information Modeling (BIM) computational tool. The framework structures assessment across three life cycle stages and four hierarchical levels. Its feasibility was validated through the Wafer Works Erlin Plant project. The results indicate that the BIM-based method effectively tracks material flows, demonstrating that structural design strategies and certified Green Building Materials significantly enhance circularity performance. This research provides a scalable, scientific instrument for quantitative evaluation, offering actionable insights to advance evidence-based sustainable design in the local construction industry.