BDG/McColl has created an in-store branch of Barclays Bank in the Morrisons supermarket in Newark, following prototype testing in Coventry and liaison with Barclays Property Holdings.
The format includes cashpoint, telephone banking and personal banker facilities, and a meeting room for private consultations.
Signage provides information on services, with two to three staff on duty for extra advice. The Newark branch in Nottingham-shire opened earlier this month.
Barclays is classing the in-store branch as a trial operation, and has no immediate plans for further examples, says a spokeswoman. It sought advice from contemporaries in the US before developing the prototype.
The branch will aim to market services to new and existing clients. Supermarkets have higher footfall rates than traditional banks, making the idea potentially successful. Trials of the format will last for several months before any roll-out decisions are taken.