Newcastle Building Society is a member-owned mutual and the eighth largest building society in the United Kingdom. It has operated for over 150 years, providing banking and financial services from its headquarters in Newcastle upon Tyne. The society maintains 33 branches on high streets across the North East, Cumbria, and North Yorkshire, with a stated commitment to personalized, face-to-face service.
Its product range includes savings accounts, mortgages, Individual Savings Accounts (ISAs) covering cash, fixed-rate, and lifetime variants, and personalized financial advice. As a mutual, it is not shareholder-owned; its purpose centres on connecting communities with a better financial future, guided by the principle that people helping people is at the heart of the mutual model.
The society is actively involved in community partnerships, working with organisations such as the Newcastle United Foundation, the Sir Bobby Robson Foundation, and Citizens Advice Gateshead. Its geographic footprint is concentrated in the North East of England.






