The buildings that house Olympic events, which serve as icons of this most famous sporting event, must now be sustainable as well. Stadiums, arenas, gathering places, and athlete communities are all changing from expressions of architectural brilliance to instances of sustainable environments, built to last long after concluding the event and to aid in the redevelopment of the metropolitan areas that host them. The building business is one of the most environmentally destructive in the world since it directly affects how raw materials are used and how they are determined to be used during their entire existence. This sector, however, is still in the early stages of transition from a linear to a circular economy. To minimize total resource use and landfill waste, business models must be updated to incorporate novel concepts and cutting-edge services. According to this approach, "deconstruction" plays a crucial role in the circularity of structures. It serves as a sustainable substitute for traditional demolition, which is generally an arbitrary and destructive process that, despite being quicker and less expensive, typically produces a substantial amount of garbage. In line with this, the goal of this research is to revisit the Olympic Games host cities, mainly London and Paris, and examine the possibility of the demolition of infrastructure built for the Olympics and to provide methods for minimizing its effects on the urban environment. The research paper aims to make it easier to implement circular economy strategies for buildings by outlining the key principles that must be followed throughout the design and planning process regardless of the kind of construction system or material employed and by recommending deconstruction as a sustainable alternative to demolition. Collaborating with the corporate, academic, and research sectors further emphasizes the sharing of information.