The CircularCircular Economy (CE) hasPrinciples of circular economy emerged as a transformative frameworkTransformative framework highlighting various approaches and goals to achieve sustainable developmentSustainable development. It offers an alternative to the conventional linear model of “take-make-use-dispose,” replacing it with a more sustainable cycle of “make-use-reuseReuse-remake-recycleRecycle.” This chapter explored the ten principles of CE, referred to as the “10 Rs,” and introduced an additional “R” specific to the construction sector, emphasising the importance of design for disassembly as a critical topic in modern construction practicesConstruction practices. The adoptionAdoption of CE principles in managing construction and demolition waste aims to minimise waste generation while maximising the recovery, reuseReuse, and recycling of materials from deconstructed buildings. These efforts contribute to reducing the environmental footprint of demolition activities, conserving finite natural resourcesResource, and cutting greenhouse gas emissions tied to waste disposal processes. Furthermore, integrating CE principles into the construction industryConstruction industry of developed countries has showcased a global commitment to sustainabilitySustainability. Although these nations face distinctConstruction industry challenges challengesChallenges, they have made significant strides by implementing effective policiesPolicy, advanced technologies, and collaborative efforts. In contrast, developing countries must address urgent needs by formulating comprehensive policiesPolicy and strategiesStrategies prioritising resource efficiencyResource efficiency, waste reductionWaste reduction, and sustainable consumption practices. Overall, the insights gained reveal the potential of CE business models to drive more resilient, inclusive, and environmentally responsible societies, paving the way for sustainable progress across diverse contexts.