The increasing concern for environmental pollution and the depletion of natural resources has directed global attention to an alternative approach that considers such issues, the circular economy. Circular systems are favorable from both an economic and environmental point of view, reducing the need for virgin materials and non-renewable energy sources. Creating closed supply chains using the principles of a circular economy is complex. It requires high levels of coordination between stakeholders, from raw material origin to end user destination. Because of the large number of transactions in this system, it is important to maintain the integrity of information in the supply chain. Blockchain provides advantages for supply chains, such as transparency, accountability, and supporting collaboration. The significant benefits that blockchain services provide for resource recovery in circular systems are now recognized by governments and industry leaders. Although the contributions to circular economy principles are intangible, their help in enabling companies to reduce GHG emissions can be quantified. With the data chain approach, buildings can incorporate advanced material management and digital service models such as leasing, which are essential for the circular economy. The discussion then extends to how blockchain can transform building management systems by supporting renewable energy trading, automated billing services, and the incorporation of distributed supply chains, delivering real benefits to circularity.