Home prices are falling in California but this state is still considered the nation's 10 most expensive housing markets. Average sale price for a 2,200 square foot house of San Diego this year is $ 1.8 million. According to a study, the average price of a house in Seattle is $584,500, Tacoma's home value is $338,750 and Bellevue's home value is $814,483. Severe drop in home values have been in areas like California, Arizona, Nevada and Florida. In 15 markets outside U.S., the average home price averaged more than $1 million. The average home prices in 13 U.S. states are $1 million. In U.S. markets, areas like Greenwich, Beverly Hills, Calif are ranked as second and third most expensive markets, with average home prices being $1.8 million. Other California markets that are top 10 by price are Palo Alto, Santa Monica, Santa Barbara, Newport Beach, San Francisco and San Mateo.