Billionaire David Koch was one of the richest, most influential men in America — and he owned tens of millions of dollars in New York real estate

Libertina Brandt

August 23, 2019 4:23 PM

Sean Zanni/Patrick McMullan via Getty Images

David Koch was one of the richest men in the world.
He owned a handful of properties in New York including a $40.25 million townhouse he reportedly paid for in cash.
On August 23, 2019, he died at age 79 .
Visit Business Insider's homepage for more stories .

David Koch was one of the richest men in the world.

The billionaire conservative activist and industrialist had a net worth of $50.5 billion, per Forbes.

Along with unloading his fortune into Republican causes and local community projects , Koch also made heads turn with his real-estate purchases.

Just last year, Koch and his wife were revealed as the buyers of Joseph Chetrit's $40.25 million Upper East Side Mansion . The New York Post reported that, according to sources, they paid for it in cash.

Koch was a familiar face in the world of New York real estate. According to the real-estate news platform Bisnow , along with the 15,000-square-foot townhouse, Koch also laid out $17 million in 2004 for an 18-room duplex in a luxury apartment building on Park Avenue.

In 2017, Business Insider reported that Koch owned a seven-bedroom home on Meadow Lane in Southampton, which Forbes once dubbed "Billionaire Lane."

On August 23, 2019, reports confirmed that David Koch died at age 79 . According to his brother, Charles Koch, he battled with prostate cancer for 27 years .

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