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The concept of a circular economy (CE) encompasses a comprehensive approach to conscious design and material choice, in addition to keeping products at their utmost utility during production, operation, and reuse cycles through the implementation of closed loops. A blockchain allows for a fast, secure, and accessible information network by providing a decentralized ledger where materials and products can be traced to their sources. This paper investigates blockchain as a promising technology for the facilitation of a CE in the built environment. In support of this, a blockchain model is presented and tested through a synthetic case study to provide a proof of concept as to the feasibility of blockchain as an enabler of a CE in the built environment. With utilization of a blockchain, the current state of each material and component can be tracked, making the proactive planning for their reusability a tangible reality. The …