Mark Zuckerberg spent almost $60 million on 2 waterfront estates in Tahoe last winter. Here's a look at the 10 properties he owns across the US, from a modest Palo Alto home to a Hawaiian plantation

• Facebook CEO Mark Zuckerberg spent more than $59 million on two adjacent Lake Tahoe properties last winter, Katherine Clarke of The Wall Street Journal reported.
• Zuckerberg has purchased 10 properties across four locations: Palo Alto, California; San Francisco; Lake Tahoe; and Kauai Island, Hawaii.
• Zuckerberg tends to buy surrounding properties to ensure privacy.
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The billionaire Mark Zuckerberg recently expanded his real-estate portfolio and summer vacation options.

The Facebook CEO dropped more than $59 million on two adjacent Lake Tahoe properties last winter, Katherine Clarke of The Wall Street Journal reported. The purchase happened privately through a limited-liability company and a high-end wealth manager, according to Clarke.

It's just the latest addition to Zuckerberg's collection of properties in the western US — he also owns properties in Palo Alto, California; San Francisco; and the Hawaiian island of Kauai, making Tahoe his fourth location.

Collectively, Zuckerberg has purchased 10 properties, though he has a knack for also buying surrounding properties to ensure his privacy — he bought four homes surrounding his main Palo Alto residence and a stake in a beach adjacent to a plantation he purchased in Kauai.

Zuckerberg's also known for getting embroiled in a bit of real-estate conflict — there was a dispute over the landlocked parcels on the plantation, and neighbors reportedly weren't pleased with the effects of Zuckerberg's year-plus renovation on his San Francisco townhouse.

Take a look at Zuckerberg's real-estate portfolio.

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Mark Zuckerberg lives in a 5,000-square-foot estate in Palo Alto, California.

He purchased the Crescent Park neighborhood home in May 2011 for $7 million, Business Insider's Tanza Loudenback reported. He's since tricked it out with a "custom-made artificially intelligent assistant,"according to CNBC.

Compared with Zuckerberg's $71.5 billion net worth, the five-bedroom, five-bathroom home is quite modest.

Architectural Digest described it as a "'no frills' abode" that chooses function over extravagance. Outside, it features a big backyard, a pool, and lush, detailed landscaping. Inside, there is a spacious kitchen and plenty of windows allowing for sunlight.

The following year, Zuckerberg began buying four homes surrounding his Palo Alto residence.

He spent more than $43 million on these properties, Katherine Clarke of the Wall Street Journal reported, citing public records. After leasing the homes back to their former owners, he planned to demolish and rebuild them in 2016.

According to Claudine Zap of Realtor, city officials didn't approve this plan, and Zuckerberg filed a new plan that allowed him to renovate two of the homes and rebuild the other two as single-story homes, creating a sort of compound.