Validation of a Digital Framework for Circular Economy Retrofits: A Multi ‐Case Analysis

Integrating Circular Economy principles into existing building retrofits offers substantial opportunities to reduce resource waste and improve operational efficiencies. This paper presents a multi‐case analysis of eight retrofit projects — spanning offices, residential complexes, and historical structures — to validate a digital integration framework that leverages Building Information Modeling, the Internet of Things, Artificial Intelligence, and Digital Twins. Our analysis demonstrates that retrofits employing this framework can achieve material reuse rates between ۴۰% and ۸۰% and energy savings from ۱۵% to ۷۰%. In addition to quantifying performance improvements, the study examines challenges such as stakeholder resistance, data fragmentation, and regulatory constraints, and discusses strategies for effective framework implementation. The findings offer a robust roadmap for scaling digital‐driven CE retrofits in the built environment.

کلیدواژه ها:

Circular Economy ، Building Retrofit ، BIM ، IoT ، Material Reuse