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PROJECT REPORT: COMMERCIAL BUILDINGS
“People want more than a building – they want a story, they want sustainability, safety, wellness – we knew we could deliver this here, and that it would attract the desired users”
architect explains that, as a design team, the key to overcoming all these issues was “professionalism within the shifting economic, logistical and legislative environment resulting from Brexit, Covid, Grenfell, and trusting in the use of structural timber during a time of evolving compliance legislation.”
Performance
More than overcoming these hurdles, Foster says the buildings deliver “above and beyond expectations,” increasing the net area of The Dock by over 500 f2 since the design stage, and both buildings offer venerable sustainability. According to the architect, the team employed a “multi-faceted” approach to sustainability, beginning with the decision to retain the existing building – “the most sustainable building being the one that’s already there.”
The retention of the existing concrete alone has been calculated as saving 1,108 m3 of carbon, (avoiding emissions of 655 TCO2
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materials that would have to replace this structure. Then, the timber extensions perform extremely well on carbon. Across the 1,044 m2 of CLT and glulam beams, 1,222 TCO2
e of biogenic carbon has been
sequestered, which is close to the upfront carbon arising from all structural works (1,259 TCO2
e), with the timber having
upfront carbon that’s 30% lower than the notional LETI 2030 target.
All the timber used was FSC accredited, sourced sustainably from Europe, and the lack of finishing materials further reduced emissions. Alongside the timber, a number of other measures included high levels of insulation to avoid heat loss, solar reflective glazing and solar shading fins and louvres, energy efficient lighting and external lights with daylight and occupancy sensors, and rooftop photovoltaic solar panels with monitoring and targeting.
e A), not accounting for the
100% of site demolition spoil was sent for recycling, the aluminium used in the curtain walling is from 100% recycled
ADF NOVEMBER/DECEMBER 2023
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