Duncan Cox specialises in sustainability strategy and high-performance building design at Thornton Tomasetti, helping project teams reduce carbon and improve building performance from early planning through design and delivery. His expertise in decarbonizing the built environment spans whole-life carbon assessment, embodied carbon, circular economy strategies, and low-carbon design.

Duncan also uses building analytics to evaluate energy, daylight, glare, and comfort to help teams understand how sustainability goals interact with design and occupant experience. He provides sustainable strategy and planning support, navigating evolving requirements and translating ambitious performance goals into practical project decisions.

A recognised industry voice on embodied carbon, Duncan contributes to research, peer review, and industry guidance on whole-life carbon and low-carbon design.