Early design choices set the majority of a building’s environmental footprint. That makes upfront embodied carbon a project inception issue.
By Dr Lee Jones, Head of Sustainability at Hubexo NBS
Across UK construction, carbon reporting has become a regular task as part of the everyday running of projects. Three in five construction professionals now track embodied carbon using digital technologies, up from two in five just two years ago. For architects, specifiers and design teams working on live schemes, that shift is changing how decisions get made, determining who gets consulted and when.
Upfront embodied carbon represents the emissions embedded in a building at completion, arising from the extraction, manufacture, transport, and installation of its materials.
Once construction completes, that footprint is fixed and permanent. For energy efficient structures, it can account for as much as three quarters of total lifecycle impact.
A measurable shift in practice
The NBS Digital Construction Report 2025 confirms an industry wide trend, spanning every project type and scale. Almost two thirds of professionals now use digital tools for energy and water demand assessment, nearly double the figure from two years ago. This coincides with the vast changes to in-use energy efficiency.
Similarly though, over half have adopted digital tools for lifecycle analysis which includes measuring upfront embodied carbon, up from one third in 2023.The real value of this uptake lies in timing. Early design decisions determine the majority of a building’s environmental footprint. Tracking upfront embodied carbon from project inception delivers the greatest impact, helping project teams avoid expensive later stage redesigns when carbon intensive specifications need changing.
Regulation is closing the gap
Possibly as early as 2028, upfront and potentially whole life carbon assessments are expected to support delivery of Carbon Budget 5, making robust carbon reporting central to the UK’s net zero targets. The Government’s Carbon Budget and Growth Delivery Plan sets this out clearly. Comprehensive carbon reporting across the project lifecycle is set to become the norm. Lessons drawn from the EU, where carbon reporting has already been mandated, point firmly in the same direction.
Early adopters are gaining a real advantage. As clients increasingly demand environmental transparency and accountability, the ability to track and report carbon data has moved from a nice to have to a business-critical capability. Teams treating digital reporting as a strategic asset are positioning themselves ahead of the regulatory curve.
Data quality and human judgement
Accurate tracking depends on quality data inputs. Environmental Product Declarations (EPDs) provide comprehensive lifecycle assessments, though they can be complex; varying scopes and units make meaningful comparisons difficult. Digital platforms help by processing vast amounts of technical information and structuring data for comparison. Human expertise remains essential.
Construction professionals must interpret data within project contexts, balancing carbon reduction against performance requirements, cost constraints and programme demands. Understanding carbon assessment methodologies, defining competency standards and normalising data for meaningful comparisons are becoming fundamental professional skills.
Building competitive advantage
Nearly nine in ten construction professionals already see digital technologies as a positive force for the environment. That view is well grounded. Practices now have credible ways to evidence environmental claims, compare options on consistent terms and bring carbon into the same conversation as cost, programme and quality.
The greatest design value comes from acting early. Concept stage decisions set the broad shape of a building’s footprint long before any product is specified. Practices that build carbon assessment into their early workflows, supported by reliable data and considered interpretation, are putting responsible construction design on a stronger footing. The advantage will sit with those moving now, well ahead of the regulatory tightening to come.