Prefabricated Modular Construction offers significant potential to address sustainability challenges in the construction sector by enabling adaptability, reusability, and reduced resource consumption. However, the sector currently operates largely in a linear value chain, resulting in inefficiencies, high waste production, and limited integration of circular economy principles. Transitioning to a digitally integrated, closed-loop supply chain is essential to unlocking the full potential of modular construction for circularity. This research addresses two critical questions: (1) How can engineering asset management catalyze the transition from a linear to a closed-loop supply chain while maximizing value for all stakeholders? (2) How can (semi)automation in circular construction processes enhance economic and environmental sustainability across the value chain? To answer these questions, the study will focus on developing a comprehensive engineering asset management framework tailored for circularity. This framework will coordinate stakeholder decisions and activities across all lifecycle phases of buildings, from design to recovery. Additionally, a digital twin of the modular construction supply chain will be developed, scoped to offsite logistics. This digital twin will enable scenario analysis for integrated planning of production, logistics, and recovery strategies, supporting decision-making and fostering a digitally integrated ecosystem for sustainable modular construction practices.