The six-storey building at 1 North Wall Quay in Dublin's docklands is expected to sell for more than €120m, Knight Frank said.
The bank has occupied the 230,000 square foot office for more than 20 years and is already looking for a new Dublin address, the broker said.
Citi will remain in North Wall Quay for some time after it has sold the building while its new location is prepared.
Whoever buys Citi’s current home could redevelop the site, Knight Frank said.
