The bank says that over the last five years it has continued to invest in its branch network with all of its busiest branches across the UK being refurbished.
Uckfield is one of those that has been refurbished.
However, the bank says on its website: “More of our customers are changing the way they choose to manage their money, and as a result, customers are visiting our branches less frequently.
“More and more people find it convenient to do their day-to-day banking using online, mobile or telephone banking.
“To support these changing needs we are embracing changes in technology that will help are customers.
“We were one of the first UK banks to adopt the new payment services such as Apple Pay, Google Pay, and Samsung Pay, and we continue to develop our Mobile Banking apps to help our customers manage their money.”
The list of branches closing can be found on the Santander website here.