Willmott Dixon is a privately owned UK construction and building services firm, with roots going back to 1852, headquartered in Letchworth Garden City.
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Willmott Dixon has cut operational emissions 63% since 2018 and hit 84% renewable electricity by 2025, backed by SBTi 1.5°C targets and Bureau Veritas assurance. Scope 3 dominates total footprint and rose in 2025 despite absolute operational gains. Supply chain emissions rely on spend-based proxies, not physical material data; nature and timber sourcing remain unquantified.
Willmott Dixon scores 54/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified October 2026.
That places Willmott Dixon joint 64th of 847 companies scored, and joint 2nd of 26 in Construction / Real Estate.
Where Willmott Dixon sits among construction / real estate peers.
Among the 26 major construction / real estate brands we've scored, Willmott Dixon is tied =2nd of 26, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
Series is spend-based; absolute Scope 3 reduction not demonstrated.
No TNFD disclosure, quantified nature footprint, or timber and aggregate sourcing assessment found.
The full reasoning is in the ten questions below.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Carbon Footprint — Operations and Transparency & Accountability (8/10, 8/10). Weakest on Emissions Trajectory and Nature & Biodiversity Impact (4/10, 5/10).
The one company in the sector scoring above Willmott Dixon.
See the full Construction / Real Estate table →The formula and all 12 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
6 of 12 sources are independent of the company.
“We use the operational control approach and opt to include anything that Willmott Dixon pays for under our scope 1 & 2 emissions”
“84% of electricity used to power our offices and came from renewable sources”
“Since 2020, we've planted over 55,000 trees, keeping us on course to meet our target of 100,000 trees by 2030.”
“WILLMOTT DIXON HOLDINGS LIMITED”
“Reduced absolute operational carbon emissions by 57% since our baseline year of 2018 and by 17% since 2023.”
“We support our supply chain partners to develop and implement carbon reduction plans in their own businesses”
“which has approved Willmott Dixon’s emissions reduction targets as being in line with an overall need to limit a global temperature rise to 1.5°C”
“Willmott Dixon has committed to making all of its operations zero carbon by 2030”
“Our Now or Never targets are science-based, meaning they are aligned to keeping global warming levels to 1.5C.”
“use renewable electricity to power all operations by 2030 alongside sharing best practice with peers”
If you believe a source has been misread or a newer version exists, submit a challenge.
Willmott Dixon is a privately owned UK construction and building services firm, with roots going back to 1852, headquartered in Letchworth Garden City. It operates across education, healthcare, commercial and infrastructure sectors, employing approximately 1,919 staff and generating £1.1bn revenue in 2025.
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