How Good Are Zillow's Estimates?

In the year since its launch, Zillow Inc. has made millions of Americans familiar with computer-generated estimates of home values, created a new online addiction and, become a staple of dinner-party chatter. But just how accurate is it? A Wall Street Journal analysis of 1,000 recent home sales shows some interesting results. As we saw earlier, the top down approach is a a bit skewed when it comes to home prices for all of America.



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