 Where are the 10 most expensive places to buy a home in the U.S.? Well, the top five are in California. According to a recent study by Smart Asset, they are in San Jose, San Francisco, Los Angeles, San Diego, and Oxnard. Rounding out the top 10, Honolulu, Seattle, Boston, New York, and Denver. Well, it probably smells great, but is the possibility of getting burnt worth it?