Coventry Building Society sustainability score: 44/100
Coventry Building Society is a UK mutual mortgage lender and savings provider headquartered in Coventry and owned by its members; it bought the Co-operative Bank in January 2025. It had 5,520 full-time-equivalent employees and £1.09 billion total income in 2025.
Head office Coventry, UKStaff ~5,520 FTE (Group, 2025 average)Revenue ~£1.09B total income (Group, 2025)Website ↗
Coventry Building Society's footprint was 1.02 MtCO2e in 2025, almost all of it from the homes it lends on, which it measures on the standard PCAF basis. Its own operations' emissions are 62% below 2021 and its electricity is renewable under certificates, but it pushed its all-scope net-zero target back from 2040 to 2050 after the merger and its carbon neutrality rests on offsets. A group of 83 universities accepted it and the Co-operative Bank as deposit-takers that avoid financing fossil fuel expansion.
Coventry Building Society scores 44/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified November 2026.
That places Coventry Building Society joint 306th of 934 companies scored, and 11th of 59 in Financial Services / Banking.
What is Coventry Building Society doing well, and where does it fall short?
Strongest on Transparency & Accountability and Carbon Footprint: Operations (8/10, 7/10). Weakest on Targets & Commitments and Nature & Biodiversity Impact (3/10, 4/10).
Where Coventry Building Society lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain6/10No full value-chain map or supplier engagement programme.
- Whether its emissions are falling5/10No evidence of a year-on-year fall in its total emissions.
- How clean its energy is6/10Less than 90% of its energy shown to be renewable.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste6/10No verified figures for reuse and recycling across the business.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets3/10No specific targets with dates.
- How openly it reports8/10No mission-locked structure, such as B Corp certification.
- Its record on controversies7/10Points deducted for controversies or its business model. The finding is under question 10.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Coventry Building Society's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Coventry Building Society's score based on?
12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
25% of them were published by Coventry Building Society itself; the rest come from independent sources.
9 of 12 sources are independent of the company.
“Total Scope 1 and 2 energy (tCO2e) 1,109 970 2,079 1,180”
“Since 2020, Coventry Building Society has reported detailed GHG emissions verified according to the international ISO 14064 standard”
“Renewable Energy Guarantees of Origin – REGO backed”
“Land & Life 3.6”
“Co-op Bank does not finance companies involved in the extraction or production of fossil fuels”
“The Co-operative Bank, Coventry Building Society, Handelsbanken, Leeds Building Society, Skipton Building Society, Unity Trust Bank and Yorkshire Building Society have all met the strict fossil fuel-related criteria”
“It also earned a Which? Eco Provider badge for setting high ethical standards over the businesses it offers its services to.”
“the combined group has adopted a 2050 net zero target”
“Coventry Building Society said 97 per cent of its total emissions related to the houses it lends against”
“It will return Co-op Bank to a mutual structure”
“As of 1 January, the bank is now a wholly owned subsidiary of Coventry Building Society.”
“Coventry Building Society receives a top rating for Environmental Report”
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How does Coventry Building Society compare with other financial services / banking companies?
Where Coventry Building Society sits among financial services / banking peers.
Among the 59 major financial services / banking brands we've scored, Coventry Building Society sits 11th of 59.
Who scores higher in Financial Services / Banking?
The 3 companies in the sector scoring nearest above Coventry Building Society.
Nationwide has decarbonised operations effectively (Scope 1 down 45%), secured 100% renewable electricity, and published robust TCFD disclosures with third-party assurance.
See the breakdown →Monzo reports comprehensive carbon data but absolute emissions rose 17% year-on-year, undermining its net zero 2030 claim.
See the breakdown →Halifax's parent, Lloyds Banking Group, reports comprehensive operational emissions and 100% renewable electricity, but financed emissions dwarf these efforts at 32.8 MtCO2e.
See the breakdown →Which companies moved this week, and why.
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