AIB has confirmed that it has signed a lease for a new building in Heuston South Quarter in Dublin.
Bank staff will begin to move into the building in the second half of 2019.
AIB has also signed agreements to complete the gradual exit of Bankcentre in Ballbridge by the end of 2020.
Earlier this month, it was announced that Facebook would acquire a long-term lease of 14 acres for the Bankcentre campus.
AIB said today that its corporate headquarters building in Molesworth Street is progressing as planned, with expected occupancy in the second half of next year.
Earlier this year, AIB also opened its Central Park office.
"Our new building in Central Park is a modern, fit for purpose workplace which allows teams collaborate to the benefit of our customers," the bank said.
"We will seek to replicate that level of customer-driven collaboration in our new offices in Molesworth Street and in Heuston South Quarter," he added.