The Medical Professional Mortgage Products is for purchase, remortgage or capital raising cases where at least one applicant is a doctor, surgeon or dentist.

It will allow them to borrower a higher amount against their income compared to standard products. Therefore, sole customers will be allowed to borrow up to 5.5 times their income, which is in contrast to the 4.5 times allowed by standard criteria.

Meanwhile joint customers are allowed to borrow up to five times their incomes, an improvement on the 3.5 multiple allowed as standard.

Alun Williams, chief executive of Swansea Building Society, said: “We are constantly reviewing what we do based on feedback from customers, brokers and our wider analysis of the mortgage landscape to ensure we are competitive where relevant in the current market.

“In this case, we wanted to develop a product that would reflect the current and future earnings potential of some of our clients who work in the medical profession. We are delighted to be able to roll this product out; we have already had very good feedback from our network of brokers.”