It said this was driven by demand from high net worth individuals and families.
The bank said interest in its retirement mortgage also rose by 10 per cent in the first half of the year and 39 per cent annually.
Deposits made at Hampden and Co also increased by six per cent annually to £773m.
Meanwhile, the bank saw its client base grow during the period, with an eight per cent rise in customers bringing the total to more than 5,000. This was driven by a growth in professional referrals and was up by 13 per cent annually.
To support the growth seen this year, the bank appointed Patrick Preece and John Glanville as banking directors and Mark Plummer as the head of private banking.
In the first half of 2023, Hampden and Co saw its income rise 74 per cent yearly to £15.3m and a pre-tax profit of £5m.
Graeme Hartop (pictured), CEO of Hampden and Co, said: “The UK banking sector continues to experience change and we believe we are very well positioned to increase market share in the private banking sector as well as to meet the needs of underserved high-net-worth customers of high street banks.
“It is particularly pleasing to see a high number of referrals from other professionals such as wealth managers, solicitors and accountants, as such partnerships are of significant benefit to our mutual clients.”
