Nationwide Expands Zero-Interest Green Loan Scheme to 10,000 Households
Nationwide Building Society has announced a significant expansion of its interest-free green mortgage initiative, doubling the number of eligible homeowners to 10,000. The scheme allows qualifying mortgage customers to borrow between £5,000 and £20,000 at 0% interest to finance energy efficiency improvements for their properties.
Substantial Funding Already Deployed
The building society revealed it has already provided approximately £60 million through the Green Additional Borrowing programme since its launch in June 2023. The typical loan amount stands at around £13,000, with the original scheme targeting 5,000 households before this latest expansion.
Regional uptake data shows the South West leading with 16% of completions, followed by the Outer Metropolitan and Outer South East regions, both recording 12% participation rates.
Addressing Housing Emissions Through Financial Innovation
Housing remains a substantial contributor to Britain's carbon emissions, with government data indicating approximately 20% of England's emissions originate from residential buildings. Research conducted by Nationwide in partnership with WPI Economics suggests that upgrading all homes to Energy Performance Certificate (EPC) band C or above could reduce emissions from residential housing in England by up to 47%.
Henry Jordan, Nationwide's group director of mortgages, emphasised the society's commitment: "We are dedicated to assisting our members in enhancing their homes' energy efficiency. Extending our zero per cent Green Additional Borrowing products will support another five thousand households who aspire to retrofit their properties and can manage long-term investment but face challenges with upfront costs."
Strategic Partnerships and Additional Incentives
The expansion coincides with Nationwide joining the Green Home Finance Strategic Partnership, a collaborative initiative involving the Government and the Green Finance Institute aimed at increasing funding for home energy improvements as part of the Warm Homes Plan.
Ryan Jude, programme director at the Green Finance Institute, commented: "Broadening and diversifying available green finance options will be crucial for enabling more households to upgrade their homes' energy efficiency. Nationwide's extension of its 0% Green Additional Borrowing mortgage offer represents an important example of the variety of options lenders must provide to support the transition."
Beyond the interest-free loans, Nationwide operates a Green Reward scheme offering £500 cashback to purchasers of the most energy-efficient properties (EPC-A rated, SAP score 92 or above) and £250 for high EPC-B properties (SAP 86–91). Since its introduction, the building society has distributed approximately £4.8 million in cashback, including over £1.7 million between February 2025 and January 2026.
Supporting Tools and Customer Success Stories
Nationwide also provides a Home Energy Efficiency Tool, developed in collaboration with the Energy Saving Trust, to help homeowners assess potential upgrades and energy savings. Since 2023, more than 20,000 people have accessed the tool, with over 80% completing an energy savings plan.
One successful borrower, Andrew from Norfolk, utilised a £12,000 interest-free loan to install solar panels on his bungalow. He explained: "I had been exploring ways to reduce my energy bills while making my home more environmentally friendly. With a large south-facing roof, solar panels appeared the obvious choice. However, the upfront installation costs were somewhat prohibitive, making Nationwide's Green Additional Borrowing the perfect solution. I could borrow the necessary funds completely interest-free."
Jordan concluded by highlighting the broader necessity for collaboration: "Nevertheless, more comprehensive efforts are required, and cooperation remains essential if we are to decarbonise the UK's housing stock. We are therefore pleased to participate in the Green Home Finance Strategic partnership, which will play a leading role in unlocking the changes needed to future-proof our homes."
