Circular Build: The Future of Sustainable Innovation

Circular Build 2025 – formerly known as WasteBuild Zero – was more than just an event; it was a dynamic community of innovators committed to reshaping the future of sustainable construction.

On 10 September 2025, Circular Build once again joined forces with the AJ Retrofit Live conference in London. This collaboration created a powerful platform that brought together industry leaders and visionaries under one roof.

AJ Retrofit Live and Circular Build were fully aligned in their mission to empower architects with sustainable materials, best practices, and strategies essential for reducing carbon footprints and progressing toward net zero emissions.

Building on successful past editions in Amsterdam and London, the 2025 iteration of Circular Build showcased international circular economy manufacturers and solutions alongside the UK’s most forward-thinking architects and specifiers. The event elevated both discourse and action around circular economy principles in the built environment.

Thank you to all who joined us at Circular Build 2025 and contributed to the growing movement for a sustainable, circular future in construction.

The construction sector consumes

of all raw materials

Buildings produce

of all carbon emissions

Construction creates

of all waste

Building materials account for

of total carbon emissions over the life of a building

About the conference

The content at Circular Build is the only place to hear from the leading architects, engineers, designers and developers from across Europe who are pushing the boundaries of what is possible with circular schemes today. Governments and industry bodies have declared a climate emergency and Circular Build is where you will find out how the built environment can be part of the solution.

Circular Build will showcase inspirational speakers, innovative solutions, and opportunities for you to win work in the circular built environment space. As a conference attendee, you will learn how to win more work by making your next project more circular than your last and get ahead of the net zero carbon transition

Accelerate the transition to a circular built environment…

Circular Build exists with the dedicated ambition to accelerate the transition towards a circular built environment.

Today, the construction process accounts for 50% of all materials used globally and for 36% of the waste created.

Increasing public awareness and an appetite to remove waste in all forms is encouraging the adoption of robust circular economy roadmaps across all governments, with innovations in the built environment critical to every plan.

This movement away from the old linear ‘take, make, waste’ approach towards a circular economy is now increasingly supported by regulations and government targets across Europe and the world.