The society, through its subsidiary, Newcastle Strategic Solutions, plans to create an additional 500 jobs in the North East region over the next five years.
The new premises at the Cobalt Business Park in North Tyneside complies with new EU environmental building regulations and features interiors finished to the highest specification.
The offices will also be fitted with state of the art information technology to support the business, staff and service levels as business volumes increase.
The society’s solutions business provides technology, processing capability and administration support services to third party savings clients such as Bradford & Bingley, Bank of Ireland and Landsbanki, as well as extending the service offering into mortgage administration and processing with its new lending client National Bank of Dubai.
Colin Greaves, managing director of Newcastle Strategic Solutions said: “Our Strategic Solutions operation is continuing to grow rapidly and Cobalt Business Park offers the best solution in terms of facilities and location to house this expansion.
He added: “The acquisition of additional premises reflects the success of the business and demonstrates our proactive approach to the future requirements of our clients.”