Pub chain JD Wetherspoon has purchased HQ Restaurant & Gastrobar at Dublin's Hanover Quay.
Wetherspoon's - which this summer opened Northside pub the Silver Penny in a former bank and chapel - has not decided whether to launch services in the existing HQ layout or redevelop the site.
The Silver Penny opened after a reported €4m refurbishment.
Wetherspoon's declined to disclose the price it paid for HQ. Savills put the HQ property on the market in June with a guide price exceeding €5.5m. "It is an excellent property in a superb location," Wetherspoon's chairman Tim Martin said.
Wetherspoon's owns suburban Dublin pubs in Blackrock, Blanchardstown, Dun Laoghaire and Swords as well as the Linen Weaver in Cork.
It is developing a €18.5m pub and hotel on Dublin's Camden Street and pubs in Galway and Waterford. Wetherspoon's has four NI bars and has also bought the freehold of Revolucion de Cuba in Arthur Street in Belfast for £3.25m.