The decision was taken to close the branch after noting that it was “used by six personal customers on a regular basis in 2019” while more than half of personal customers chose to use the mobile app to digitally bank.
Counter transactions decreased by around 35% between 2017 and 2019.
Customers can continue to use NatWest branches, including the one in Cathedral Square, to access Royal Bank of Scotland services.
A spokesperson for the bank said: “The way people bank with us has changed dramatically in recent years.
“The increasing demand for mobile and digital services continues as customers benefit from faster and easier ways to bank. Fewer people are visiting branches and, when they do, they are carrying out fewer transactions.
“This means we need to continually review our network, making our priority to have branches in locations where our customers use them most.
“We understand that digital solutions aren’t right for everyone or every situation. We take our responsibilities seriously to support customers who face challenges in moving online.
“Plus, we’re investing to provide them with support and alternatives that work for them.
“It’s important to us that no one gets left behind.”
Other branches closing across the country include Cambridge, Coventry and York.