Bennetts Associates are very proud to publish our first LETI Embodied Carbon Ratings for completed projects, which we believe is the first public use of the new declaration which we were involved in creating.
The declarations for our King’s Cross Sports Hall and for 11-21 Canal Reach are the culmination of over five years of embodied carbon calculation and reduction on both projects. The embodied carbon ambitions on both projects were instigated by Argent at a time when embodied carbon didn’t have the traction in the industry it has today, continued by us and the design team to dramatically reduce the embodied carbon compared to industry benchmarks, and taken to completion by BAM who continued making carbon savings and monitoring the as-built emissions up to practical completion.
We are not only proud of being the first to publish as-built ratings publicly, along with the background data, but also of the ratings themselves. The King’s Cross Sports Hall’s embodied rating of an A+ demonstrates just how far the project has been pushed, with the lowest carbon option being chosen for almost every single building element. Alongside the circular economy story of the building, we see the project as being an exemplar for some time to come. At the same time, we view the result of a “D” rating for 11-21 Canal Reach as similarly impressive, whilst also highlighting how far the industry still has to go in a climate emergency. At 705kgCO2e/m2 (A1-5) 11-21 Canal Reach’s upfront embodied carbon is around 40% lower than “business as usual” despite being designed six years prior as a large, speculative office building, further highlighting the ambition of Argent, Bennetts Associates and BAM throughout the project’s life.
In Timber Square, one of our latest projects, we are demonstrating how we can take the lessons of both projects and our experience in re-using existing structures and combine them into a project that should get close to the results of the Sports Hall in the form of a large speculative office building in central London.
Lastly, as part of a ratcheting up of our existing sustainability targets in the run up to COP26 we are committing to publish an as-built (and ideally an in-design) declaration for all future projects so that we can be held to account and to support the industry in moving towards more ambitious, honest and transparent climate change claims about our buildings.
To take a full look at the embodied carbon rating and a more detailed LETI data template, download each of the project pages below.
An environmentally ground-breaking office block that creates a new urban crescent and offers an expansive and highly landscaped accessible roofscape