Billionaire David Koch owned at least $143 million of real estate in NYC, the Hamptons, Aspen, and Florida. Take a look at his lavish homes, from a $40 million Manhattan townhouse to a 13-bedroom Palm Beach villa.

5:00pm PDT - August 22nd, 2019    david koch - Business Insider (UK)

Koch lived in an $18 mil. Park Avenue duplex, paid cash for a $40 mil. Manhattan townhouse, and had a mansion on the Hamptons' "Billionaire Lane."