- 36% increase in Scope 2 emissions due to increased projects using mains-supplied electricity and major tunnelling operations
- Increased ethnicity pay gap for Asian and Mixed Heritage colleagues
- Need to improve the maturity of Scope 3 emissions data
- Need to launch a water resource strategy
Costain Group PLC
Greenhouse gas emissions & sustainability report data
In its 2023 reporting, Costain Group PLC disclosed greenhouse gas emissions of 319.2K tCO2e/year. By scope: Scope 1: 4.9K tCO2e/year; Scope 2: 1.5K tCO2e/year; Scope 3: 313.1K tCO2e/year. Figures are as stated in the company's own report and may use different boundaries, units or methods (for example market-based vs location-based Scope 2), so compare with care.
GHG Emissions
319.2K tCO2e/year
2023
Energy Use
69.6M kWh/year
2023
📊 Emissions by Scope (2023)
| Scope | What it covers | Reported value |
|---|---|---|
| Scope 1 | Direct emissions from sources the company owns or controls (fuel combustion, company vehicles, process and fugitive emissions). | 4.9K tCO2e/year |
| Scope 2 | Indirect emissions from purchased electricity, steam, heat and cooling. | 1.5K tCO2e/year |
| Scope 3 | Other indirect emissions across the value chain (purchased goods, business travel, use of sold products, etc.). | 313.1K tCO2e/year |
New to scopes? Read Scope 1, 2 and 3 emissions explained and market-based vs location-based Scope 2.
📈 Emissions by Report Period
| Report period | Headline emissions figure reported |
|---|---|
| 2023 | 319.2K tCO2e/year |
| 2022 | 37.4K tCO2e/year (2021 restated) |
| 2017 | 18.6K tCO2e |
Each row is the headline figure extracted from a different report; scope coverage and methodology can change between years.
✅ Reported Environmental Achievements
- Reduced total emissions by 10% compared to 2022
- Achieved ‘Gold’ status for the Supply Chain Sustainability School Plant Charter
- Reduced Scope 1 emissions by 24% due to HVO fuel mandate (HVO made up 88% of fuel mix)
- Reduced waste by 34% compared to 2022
- >99% waste diverted from landfill
- First UK Highways project to use 3D printing of concrete on the A30 Chiverton to Carland Cross scheme
- Preston Western Distributor project saved the equivalent of 6,134 tonnes of carbon dioxide emissions
🎯 Climate & Sustainability Targets
🔜 Short-term
- Improve the maturity of Scope 3 emissions data (2024)
- Launch water resource strategy (2025)
- Achieve Disability Confidence Leader accreditation (2024)
- Launch next phase of SHE strategy (2024)
- Roll out updated code of conduct training (completed 2023)
📅 Medium-term
- 50% reduction in plant emissions/net zero company car fleet/procuring 50% low carbon concrete (2030)
- Emissions intensity < 5tCO2e/£M (2030)
- Enable a fully data-driven approach to diversity monitoring (2027)
- Improve over 500,000 lives (2028)
- Compliance with ISSB reporting requirements (2025)
🔭 Long-term
- Net zero carbon by 2035
- Nature positive by 2030
- 30% reduction in water use from operations compared to a 2023 baseline (2030)
- Representative workforce at all levels (2030)
- Stakeholders rate us as an ethical company (2030)
🌱 ESG Focus Areas
Climate changeNature and biodiversityResource efficiencyEmployee diversity and inclusionCommunity and social valueEmployee health and safetyEthical corporate behaviourQuality