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Don't demolish your city, deconstruct it!
Globally, the construction, renovation and demolition (CR&D) sectors are increasingly responsible for growing resource demand and structural waste, even given progress in energy efficient technologies, ‘green’ building design, and local planning regulations. In response, the Circular Economy (CE) has become a popular agenda in the CR&D sector as it offers a new model that not only maximizes materials reuse and recovery but also reframes urban systems and the built environment in a closed-loop (cradle-to-cradle) paradigm. In particular, popular visions of the CE promote, among other actions, ‘optimizing’ the end-of-the-life of buildings and their materials. Deconstruction (i.e. piece-by-piece demolition) is one key optimization strategy that has received increasing, yet limited, attention by researchers. This work traces the development of an incipient deconstruction sector in Vancouver, focusing on the possibilities and challenges of deconstruction and material recovery practices as viable strategies for a transformative CE. In particular, I investigate two related aspects: first, the emerging policy landscape surrounding green demolition, and; second, the development of ‘unbuilding’ practices and more formal ‘Deconstruction Hubs’. Overall, the work finds that while these developments represent fundamental steps toward a more sustainable built environment, there remain a number of significant social, political and economic limitations that must be confronted if we are to meet the growing demands for more radical sustainability and ‘circularity’ not only in Canadian CR&D sectors, but across Canadian cities and beyond.