Arundell has been with the mutual since March 2023, having joined as a senior underwriter. She was then made lending specialist manager in February 2025.
During her time at Darlington Building Society, Arundell has developed an understanding of the mutual’s mortgage criteria and lending approach, across frontline underwriting and more complex cases.
In her new role, Arundell will oversee the mutual’s underwriting function, supporting lending decisions and its case-by-case approach to applications.
She will also maintain relationships between the underwriting and mortgage distribution teams, helping brokers understand its lending requirements.
Chris Blewitt, head of mortgage distribution at Darlington Building Society, said: “One of the frustrations we hear from brokers is that underwriting can sometimes feel like a process happening behind closed doors. When a case falls outside the most straightforward lending scenarios, they need to understand what is possible, what information is required and, importantly, why a particular decision has been made.
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“Leanne understands that underwriting is about much more than assessing risk against a set of criteria. It’s about applying sound judgement and recognising when a conversation can make the difference between an application progressing and a broker having to start again.
“Having worked her way through the underwriting function at Darlington, she knows our approach and fully understands the expectations of the brokers who place business with us.”
Arundell (pictured) added: “I’ve always believed that good underwriting starts with understanding the application rather than simply looking for reasons why it might not fit. Criteria are there for good reason, but there will always be cases where the circumstances need further consideration, and that’s where experience and judgement become particularly important.
“From a broker’s perspective, I think one of the most valuable things an underwriting team can offer is clarity. Even when a case is complicated, brokers should know what we need from them and have the reassurance that the information they provide is being properly considered.
“Having spent the past few years working across different roles within Darlington’s lending team, I’ve seen how much difference it makes when underwriters and brokers work together. That’s something I want to build on in this role, while ensuring we continue to make responsible lending decisions that deliver good outcomes for borrowers.”
