Mark Zuckerberg’s $170 million Miami mansion is just one piece of his sprawling real estate empire that includes a 196-year-old castle

Mark Zuckerberg, the founder and CEO of Meta, has amassed an extensive real estate portfolio valued at around $222 billion. Recently, Zuckerberg purchased a 440-acre estate in County Waterford, Ireland, which includes a 196-year-old castle. He reportedly paid $57.1 million for the property. However, his most expensive purchase thus far was a luxury mansion on Indian Creek Island in Florida, near Miami and Miami Beach, which he bought for $170 million.

The 300-acre island is home to 41 lots, with approximately 84 residents, and home prices start at about $60 million. The Florida property is set in an exclusive area of the island and boasts a waterfront home with nine bedrooms and 11 full bathrooms. Zuckerberg's real estate investments extend beyond the U.S. His Hawaiian estate on Kauai, commonly known as Koʻolau Ranch, spans almost 1,400 acres and has been expanded by an additional 1,000 acres.

In the Sierra Nevada mountains between Nevada and California, Zuckerberg also owns two adjacent properties in Lake Tahoe, creating a mountain compound in the area popular among billionaires for its retreat-like appeal.