Mark Zuckerberg Buys Historic Strancally Castle, a 19th-Century Gothic Estate in Ireland
Meta CEO Mark Zuckerberg and his wife, Priscilla Chan, have purchased Strancally Castle, a historic 19th-century Gothic Revival estate in County Waterford, Ireland. The off-market deal, completed several weeks before it became public, was confirmed by a spokesperson for Zuckerberg on August 20, 2026. The acquisition gives the couple a substantial base in Ireland, where Meta maintains its international headquarters and employs around 1,500 people.
The property consists of a three-storey cut-stone Gothic-style house of approximately 16,000 square feet set on a 440-acre (178-hectare) estate overlooking the River Blackwater. Reports estimate the estate’s value in the range of €20 million to €30 million (roughly $23 million to $35 million), though the exact purchase price has not been disclosed and the transaction does not yet appear on Ireland’s Property Price Register.
Located in the Blackwater Valley near the village of Knockanore in West Waterford, the castle sits about 30 minutes from Youghal in County Cork and roughly 200 kilometres (125 miles) from Dublin. It is close to other notable historic properties, including Ballynatray House, which British inventor and entrepreneur James Dyson acquired for about €29 million in 2024, as well as Lismore Castle and Salterbridge House.
A spokesperson for Zuckerberg stated that he and his family “are excited to continue caring for this historic home and look forward to spending time in Ireland, where Meta maintains its international headquarters.” It is understood that the family will continue to reside primarily in the United States and use Strancally Castle as a base during visits related to Meta’s Irish operations.
Strancally Castle was built around 1830 (accounts vary slightly between 1827 and the early 1830s) for John Keily (also spelled Kiely), a former Conservative or Tory Member of Parliament. The architects were the brothers James and George Richard Pain, who designed several significant Irish buildings of the period, including Dromoland Castle in County Clare, Cork County Gaol, and Blackrock Castle in Cork. The house was conceived on a deliberately lavish scale. Contemporary descriptions note that a brisk walk of four and a half minutes was required to travel from the dining room to the kitchen.
The National Built Heritage Service describes the structure as a three-bay, three-storey-over-basement building constructed in sandstone and limestone ashlar, notable for the high quality of its stone masonry and craftsmanship. Features associated with the house include at least 11 bedrooms, four tower suites, a library, a dining room, and a drawing room. An older fortress known as the original Strancally Castle once stood nearby; local lore and 19th-century accounts link that earlier site to darker episodes, including stories of a “murder-hole” over the river, though the current house dates from the early Victorian period.
The most recent private owners, Michael and Giancarla Alen-Buckley, purchased the estate approximately 25 years ago and undertook extensive restoration work, with significant renovations recorded around 2003. Michael Alen-Buckley is a co-founder of the London-based investment firm RAB Capital. Giancarla Alen-Buckley is a daughter of the late hotel magnate Charles Forte and sister of Rocco Forte, founder of the Rocco Forte Hotels group. In a statement released after the sale became public, the couple said they left their home of 25 years “fondly” and were “grateful for the opportunity we have been given to save and restore Strancally Castle.” They expressed delight that Zuckerberg and his family intended to continue investing in the property and grounds “in a sustainable manner” and wished them happiness in “this unique and blessed place.”
The purchase fits a broader pattern of technology and industrial billionaires acquiring large historic Irish country estates. Stripe co-founder John Collison bought the 1,100-acre Abbey Leix estate in County Laois for about €20 million in 2021. James Dyson’s acquisition of Ballynatray on the same river system followed in 2024. Ireland’s combination of scenic rural landscapes, relatively accessible historic properties, and strong existing ties to global technology companies has made such purchases increasingly visible.
Meta’s presence in Ireland is substantial. The company established its international headquarters in Dublin and later expanded operations to include Reality Labs work in Cork and a data centre in Clonee, County Meath. Like many American technology firms, Meta has long benefited from Ireland’s favourable corporate tax environment and skilled workforce. Zuckerberg’s decision to secure a private residence relatively close to these operations provides both practical convenience for business travel and a private retreat in a rural setting.
The acquisition also adds to Zuckerberg’s already extensive real-estate holdings. He owns multiple properties in Palo Alto, California, as well as homes in other locations including Hawaii, Florida, and Washington, D.C. Earlier in 2026 he was reported to have purchased a high-value residence in an exclusive Miami neighbourhood. The Irish castle, while significant, represents a comparatively modest outlay relative to some of his other assets, including a large superyacht.
Strancally Castle’s Gothic Revival architecture places it firmly in the tradition of 19th-century Irish country houses that sought to project both status and romantic historical atmosphere. Pointed arches, towers, and carefully worked stonework create a picturesque silhouette against the river landscape. The surrounding 440 acres offer privacy, agricultural or amenity land, and the kind of seclusion that appeals to high-profile buyers seeking distance from urban centres while remaining within reasonable reach of major transport links and business hubs.
For the local area, the change of ownership is likely to generate interest. The Blackwater Valley already attracts attention for its historic houses and natural beauty. Continued investment by a high-profile owner may support ongoing maintenance of the buildings and grounds, though the estate is expected to remain private. Previous owners emphasised sustainability in their comments about the new stewardship, aligning with broader contemporary expectations around heritage property management.
The transaction underscores the enduring global appeal of well-restored historic estates. For a technology executive whose professional life is closely associated with digital platforms and rapid innovation, ownership of a nearly 200-year-old stone castle offers a striking contrast—a tangible connection to a different era of craftsmanship and landscape. Whether used primarily for short stays connected to Meta’s Irish activities or as a longer-term family retreat, Strancally Castle now forms part of the personal portfolio of one of the world’s most prominent technology figures.
As details of the sale continue to emerge and the property does not yet appear on the official price register, the precise financial terms remain private. What is clear is that Zuckerberg and Chan have secured a distinctive and historically significant home in a part of Ireland already familiar with technology-driven investment and high-profile ownership of heritage estates. The family has expressed enthusiasm for caring for the property and spending time in the country, signalling an intention to engage with both the house and the wider Irish context in which Meta operates.
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