The construction industry is integral to achieving a circular economy. The current linear model of resource use, characterised by excessive extraction and disposal, necessitates transformation. Local initiatives in cities like London and Glasgow reflect progress, though UK-wide consistency is lacking. True circularity demands collaboration across sectors, with a focus on the entire lifecycle of materials.
The construction sector remains one of the most significant consumers of resources globally, contributing to the 100 billion tonnes used each year. This entrenched reliance on a ‘take-make-use-dispose’ model underscores the urgent need for systemic change towards circular thinking.
The Circular Buildings Coalition estimates that a transition to circular building practices from 2024 to 2050 could reduce global material usage by 6.7 gigatonnes. To achieve such outcomes, a comprehensive understanding of interconnected value chains and stakeholder involvement is essential. However, current UK legislation inadequately supports these ambitions, focusing predominantly on waste management and creating ambiguity in defining and managing waste.
Despite uneven progress across regions, certain areas like London, Glasgow, and the West Midlands are pioneering circular economy route maps and integrating circular practices within planning regulations. Conversely, other regions face obstacles such as limited skills and resources, which impede the advancement of consistent nationwide approaches.
Initiating movement towards whole-life value and sustainable outcomes requires embedding circular principles from project inception. The 9Rs framework—focusing on reducing, reusing, and recycling—challenges conventional norms and fosters strategic thinking beyond the outdated waste hierarchy model. The industry must evolve to incorporate adaptive design and resource recovery throughout the lifecycle of buildings.
Adopting new business models and digitalising processes are crucial steps forward. This includes shifting towards leasing, hiring, pay-as-you-go, and ‘products as a service’ models, increasing product responsibility, and utilising regenerative materials. Local production and material reuse further diminish reliance on broader supply chains, promoting economic and logistical resilience.
Collaboration is key to realising the benefits of circular economy efforts. This involves engaging various stakeholders, such as policymakers, planners, designers, and constructors, in understanding their roles and contributions. A concerted effort ensures that healthier, efficient, and user-focused environments are developed consistently.
Realisation of a circular economy in construction necessitates a collaborative, integrative approach and an unwavering commitment to systemic change.
