This work explores the drivers for circular economy principles integration in the built environment. It highlights the reuse of materials through urban mining and the role of material passports in supporting efficient resource management. It addresses challenges in tracking and valuing materials throughout the building lifecycle and highlights digital tools such as Building Information Modelling (BIM) or sensor technologies that support material identification, reuse, and recycling. The research additionally explores the interaction between smart city technologies and circular economy approaches, demonstrating how data-driven systems can optimize material flows and promote sustainable urban development. Furthermore, it considers the potential and barriers to adopting circular construction practices in emerging markets, underscoring the need for tailored policies, education, and innovative business models. By integrating technological innovation, policy frameworks, and collaborative approaches, this work outlines pathways to enhance resource efficiency, reduce waste, and foster resilient and sustainable built environments globally.