• Mark Zuckerberg has been quietly snapping up massive chunks of real estate for years.
• The tech billionaire has bought hundreds of acres of Hawaiian land.
• He’s also splashed out on large homes in California’s Silicon Valley and Lake Tahoe.

Mark Zuckerberg is one of the world’s richest people, and his multimillion-dollar real estate portfolio reflects that.

The man responsible for Facebook is worth around an estimated $180 billion, Forbes reported, and part of that fortune includes assets like a sprawling California compound and acres of lush land on a Hawaiian island.

Zuckerberg’s real-estate dealings are often shrouded in privacy, including the use of limited-liability companies and addresses linked to the investment management firm Iconiq Capital.

Over the years, he’s bought and sold homes all over the country. He’s also reportedly built some — a Hawaiian doomsday ranch that has had many scratching their heads, for example.

Zuckerberg’s real estate portfolio has an assessed value of around $200 million, according to Business Insider calculations based on property assessments.

However, the assessed value of properties can be lower than reported purchase prices (or current market value), so Zuckerberg’s holdings are likely worth significantly more.

Representatives for Zuckerberg didn’t immediately respond to BI’s request for comment.

Here’s what we know about his real estate.