Mark Zuckerberg’s Gothic castle in Ireland costs more than previously thought; he paid $56 million for the main house alone and the full 440-acre price remains ‘secret’

Mark Zuckerberg and his wife, Priscilla Chan, have paid significantly more – almost double – for their historic Irish castle than initial market estimates suggested, spending over €51 million (approximately $56 million) on the central residence alone, a report by The Irish Times said, citing official property records. According to data published by Ireland’s official Property Price Register, the transaction for Strancally Castle in County Waterford finalised at €51,171,155. The recorded figure is roughly double the price real estate insiders projected when news of the deal first emerged, with early estimates placing the sale between €20 million and €30 million.The real cost behind the 440-acre estateWhile the register records a €51.17 million sum, that figure accounts strictly for the principal residential castle and up to one acre of surrounding land. As the historical property spans a massive 440-acre riverside estate, the total expenditure incurred by the couple remains undisclosed on the residential registry and is expected to substantially exceed the registered amount once the full acreage and surrounding grounds are factored in, the report said.The transaction was formally dated on August 17, 2026, just three days before local reporting in The Irish Times first disclosed the purchase.History and scale of Strancally CastlePositioned on the banks of the River Blackwater, Strancally Castle is an architectural landmark constructed in the Gothic-revival style. It was built around 1830 for former Tory MP John Keily, and the property was envisioned by prominent architect brothers James and George Richard Pain, who also designed a nearby folly tower house and an inlet quay along the river.According to the historical book The Houses of Ireland by Brian De Breffny and Rosemary Ffolliott, the three-storey estate encompasses 16,000 square feet, laid out on such an expansive floor plan that it required “a brisk walk of 4 and half minutes to reach the dining room from the kitchen.”The estate was acquired 25 years ago by Michael Alen-Buckley, co-founder of London investment firm RAB Capital, and his wife, Giancarla Alen-Buckley, the daughter of late hotelier Charles Forte and sister to Rocco Forte Hotels chairman Rocco Forte. Over the past two decades, the couple oversaw a comprehensive restoration of the property.In a departure statement, the Alen-Buckleys noted:“We leave our home of 25 years fondly and are grateful for the opportunity we have been given to save and restore Strancally Castle … We are delighted that Mark and his family intend to build on our stewardship by continuing to invest in maintaining and enhancing the property and grounds as their home in a sustainable manner … We wish them and their family much happiness in this unique and blessed place.”Meta’s Irish footprint and personal tiesZuckerberg’s search for prime real estate in Ireland first surfaced publicly last summer, after Liberty Media owner John Malone told The Wall Street Journal that the tech executive had approached him with an offer to buy his Castlemartin House and Estate in County Kildare. While Zuckerberg and Chan will maintain their permanent home in the US, they plan to use Strancally Castle as a family residence when visiting Ireland.Moreover, the property gives the Meta founder a direct base near his company's key international operations. Meta, parent company of Facebook and Instagram, has operated its European headquarters out of Ireland since 2009, where it currently employs roughly 1,500 people.You use AI every day. Now get your AI Quotient. Take the AIQ test.