Zuckerberg’s so-called castle in Ireland
If you’ve read one news story on the internet about Mark Zuckerberg buying a “castle” in Ireland, you've read them all.
News broke Thursday (Aug. 20) that the man who owns Meta had purchased himself a place in Ireland to hang his hat when he comes to town.
Seriously. Having read dozens of dispatches since the Irish Times scooped the world on Thursday (Aug. 20), there’s not a lot of NEWS beyond what the master of Meta wants the world to know: That he has joined a handful of billionaires in Ireland who own mansions grand enough to be considered castles. His is called Strancally Castle.
Here’s the entire 27-word statement about the acquisition issued through a Meta employee: "Mark 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."
The 16,000 square foot domicile he now owns in Ireland sits on 440 acres along the Blackrock River in County Waterford. Driving time to Meta headquarters in Dublin is about 3 hours. It’s only an hour and 15 minutes to Cork City. (Like Zuckerberg would be driving, right?) You can check out the demesne and mansion and dock on the Blackrock here.
It’s being reported that Meta’s majority stockholder paid between $20 and $35 millio for his latest real estate play. But what’s a few million? His company Meta is worth $195 billion which makes him either the fifth richest man in the world (Architectural Digest), or the seventh richest (Bloomberg). In March of 2025, he bought a 15,000 square foot mansion in Washington D.C. for $23 million, reported Politico. He also owns huge estates in Palo Alto, Lake Tahoe, Hawaii and Miami. Much huger than his pied a terre in Ireland.
The ruins of Old Strancally Castle, as illustrated in Antiquities of Ireland in 1791
Technically, it’s not a castle
There was a real castle on the property back in the 1300s. Back when a castle was a fort, built for protection, not comfort. According to the same source cited in several stories, the actual castle at Strancally (in Irish it was Srón Chaillí, or 'nose of the hag') included such features as super thick walls, narrow window slits, battlements and murder holes. (Think Game of Thrones).
What Clan Zuckerberg is buying is a castellated mansion, not a castle. On the official list of castles in the Republic of Ireland, Strancally is designated as castle ruins. Man, if those ruins could talk. Mark Zuckerberg just bought himself a piece of Irish history that comes with a body count. From the NY Post - The original Strancally Castle, situated about 2 miles from the current structure, was reportedly the site of a medieval killing floor known as the “murder hole,” where unsuspecting guests were said to be trapped, bound and dropped to their deaths. Elizabeth One had the real castle destroyed when she could order things like that in Ireland if the natives annoyed her. The magazine Mansion Global calls it a Fairy Tale Castle. It was built in the 1830s, fell into the kind of disrepair typical of big houses left behind by the Protestant Ascendancy, and was restored this century.
One tidbit of information about the mansion popping up in multiple rewrites is this: “A brisk walk of four and a half minutes is needed to go from the dining room to the kitchen,” according to the book The Houses of Ireland. I did some back of the napkin math to determine that Sean and Brigid from the staff had to walk a quarter mile from the kitchen to the dining room to serve meals.
Meanwhile, Meta is shrinking in Ireland
Meta, which owns Facebook, Instagram, What’s App and a bunch of other stuff, has its international headquarters in Dublin. It also operates a data center in Co. Meath and has offices in Co.Cork. Meta keeps cutting jobs. Currently, it employs 1,500, which is half of the number employed in 2022 when Covid peaked. Meta isn’t even in the top ten of big multinationals using Ireland as their European tax/operations base. Apple and Microsoft have more than 6,000 Irish employees.
If nothing else, Zuckerman’s latest purchase could be seen by optimists as a commitment to Ireland. If his firm didn’t plan to keep doing business in Ireland, why would he buy himself a castle, right?