Construction scope 1 emissions rise by over one-third in 30 years

The Office for National Statistics (ONS) releases datasets that measure the impact of economic activity on the environment each year⁽¹⁾. This data is updated under the ONS’s UK Environmental Accounts and provides figures back to 1990.

Data used in the story below covers scope 1 emissions, which refer to direct emissions from sources that residents and registered businesses in the UK own or directly control. Scope 2 emissions refer to those indirectly produced from the generation of purchased energy, while scope 3 emissions cover all other indirect emissions that occur in producing and transporting goods and services, including the full supply chain⁽²⁾.

The National Atmospheric Emissions Inventory (NAEI) is the main source for air emissions data reported in the UK Environmental Accounts. Air emissions data is calculated from activity data (e.g. kilometres driven by cars) and emissions factors (e.g. the emission factor of diesel) with the residence principle applied⁽³⁾.

Construction scope 1 emissions rise by over one-third in 30 years

Greenhouse gas (GHG) emissions produced by the UK construction sector in 2023 were 33.6% higher than in 1993, new data from the ONS has shown.

This equates to almost 3 million more tonnes of emissions being produced in 2023.

Published in June 2025, the latest data show that across all sectors measured, construction saw the greatest 30-year increase in GHG emissions.

By comparison, the total GHG emissions generated across the UK economy fell by 41.2% in the same period.

^{Source: ONS – UK Environmental Accounts – Atmospheric emissions: greenhouse gases by industry and gas}

James Fiske, BCIS’s executive director and Chair of the Built Environment Carbon Database, said: ‘The fact that construction’s emissions, and its dependence on fossil fuels, are both rising speaks to the urgent need for whole life carbon thinking.

‘The government is taking action on operational carbon, but emissions generated before a building is in use – from product manufacture to construction – and during demolition, are wildly unregulated. Without standardised, whole life carbon reporting, the construction sector cannot decarbonise.’

On an annual basis, construction’s GHG emissions rose by 0.5% on 2022.

Breaking this down into areas of work, the lion’s share of emissions in 2023 derived from specialised construction works, closely followed by constructions and construction works for civil engineering.

^{Source: ONS – UK Environmental Accounts – Atmospheric emissions: greenhouse gases by industry and gas}

ONS data on GHG emissions produced by industries uses scope 1 emissions that do not account for embodied carbon – emissions produced through the extraction, manufacture, transportation, use and demolition of building materials.

The Net Zero Whole Life Carbon Roadmap Progress Report, published by the UK Green Building Council in 2023, showed embodied carbon emissions fell by 4% between 2018 and 2022⁽⁴⁾. This was less than the one-quarter reduction needed to stay on track for a net zero built environment by 2050.

Elsewhere, the ONS also provides data on fossil fuel usage by industry.

In 2023, construction’s carbon-based fuel usage increased by 1.6% on the year and by just over one-quarter (25.1%) on 1993.

Looking at long-term trends, DERV (Diesel Engine Road Vehicle, referring to the white or road diesel used in transport) and gas oil are consistently the sector’s most used carbon-based fuels. This likely owes to the transportation of resources and personnel during construction projects.

Between 1993 and 2023, DERV usage in construction more than doubled, rising by 121.8%. In contrast, gas oil usage fell by 14.3% in the same period.

^{Source: ONS – UK Environmental Accounts – Energy use: fossil fuels by fuel type and industry}

While the available figures point to construction’s growing reliance on fossil fuels, ONS data also show the sector’s shift towards greener energy.  

In 2023, construction’s energy consumption from renewable and waste sources was over 80 times higher than in 1993 and more than triple the consumption seen in 2013.  

^{Source: ONS – UK Environmental Accounts – Energy use: fossil fuels by fuel type and industry & Energy use: renewable and waste sources}

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^{(1) Office for National Statistics – All data related to UK Environmental Accounts: 2025  - here}

^{(2) Office for National Statistics – Measuring UK greenhouse gas emissions  - here}

^{(3) Office for National Statistics – Environmental accounts on air emissions QMI  - here}

^{(4) UK Green Building’s Council – Net Zero Whole Life Carbon Roadmap Progress Report  - here}