According to the lender, it is the only bank in the UK to receive the award.
Cambridge & Counties Bank has been awarded green accreditation for the fifth consecutive year.
According to the lender, it is the only bank in the UK to receive the award.
It achieved the Green level accreditation with a score of 91% in the official auditing process.
Investors in the Environment is a national environmental accreditation scheme designed to help organisations benchmark and reduce their impact on the environment.
In order to secure accreditation, organisations must achieve a minimum 2% improvement in resource efficiency over an agreed figure each year.
Other criteria include having a recycling system in place, adopting a travel plan, calculating a carbon footprint and setting targets for carbon reduction.
Within the scheme there are three levels of accreditation.
Furthermore, the bank reduced its electricity usage by 44%, decreased its carbon footprint by 32%, noted a 16% decline in water and a 4% drop in printing, on an annual basis.
Mike Kirsopp, chief executive at Cambridge & Counties Bank, said: “We have continuously looked for ways to build on our environmental credentials and have been very successful in reducing our environmental impact.
“We have done this while offering very competitive lending and deposit products and exceptional customer service.
“Customers can rest assured that the bank is taking proactive steps to monitor its impact on the environment, building on our corporate social responsibilities and the unique position we now have among UK banks.
“Customers who are mindful of sustainability can see that we are investing in our sustainable credentials and trying to set an example for other businesses.”