where do you get your zestimates (property values)?I own a duplex worth approx $400,000. You show it's value at 1.2 million. How did you arrive at that value. A similar duplex across the street is trying to sell at $455,000 but it did not sell. You valued that duplex at $350,000. Why the huge difference?September 10 2012 - Orange00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.