New York has the highest number of properties owned by ultra-high-net-worth individuals—those are the 211,275 people worldwide who have $30 million or more in assets—followed by London, Hong Kong, Los Angeles, and San Francisco. The ranking comes from the 2015 edition of the Global Luxury Residential Real Estate Report, recently out from Sotheby's International Realty. Even though San Francisco is only the fifth most common place to own a home if you're uber-rich, it's the only city in the top five with a population under 1 million. Our closest companion, population-wise, is LA, which has more than four and a half times the people.
· Global Luxury Residential Real Estate Report 2015 [Sotheby's]