This research addresses the pressing need to reduce global emissions by 55% by 2030, as determined by recent UN evaluations, in response to the rapid temperature increase over the past five decades. The Paris Agreement was ratified with the aim of reducing global warming to below 2°C over pre-industrial levels. Toronto is striving to become a circular city through the implementation of circular economy strategies and initiatives. The aim of this research project is to gain a deeper understanding of the current state of the circular-built environment in Toronto and identify the barriers and enablers to transitioning towards circular practices. The study identifies the primary stakeholders in the built environment using the Actors Map and describes their roles and transformations, highlighting the obstacles and challenges to circularity as well as mapping them against circular strategies, approaches, and best practices. The researcher also maps circular strategies against the key stakeholders, identifies trends using STEEP-V analysis and the Three Horizons (3H) approach to examine the relationships between changes and innovations required to reach desired future outcomes. The study reveals gaps in the existing system and recommends the emergence of an abundance of trends that cover the entire range of circular practices, including those that have not yet been addressed, to bridge the divide between Toronto's circular vision and current progress.