Friday, January 11, 2008

Zillow improves math, 97% of Washington Metro now covered

Online home-price tracker Zillow says it’s deepened its database and upgraded its valuation math (RELEASE HERE.) The company’’s “Zestimates” have drawn healthy criticism for frequent inaccuracies. However, has more homes are brought into the database, accuracy are expanding down to the county level.

Zillow indicates the Washington Metro data now has 97% of the homes with Zestimates, 41% are within 5% of the selling price, 65% are within 10% of the selling price, and 84% are within 20% of the selling price.

Prince William data has 87% of the homes with Zestimates, 43% are within 5% of the selling price, 68% are within 10% of the selling price, and 90% are within 20% of the selling price.

By the way, Zillow puts typical Prince William home values down 9.0% in a year.

Why not try Zillow out and report back what you find about the homes you know best and the Web site’s “new math” …

1 comment:

For Sale By Owner said...

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