Why are Zestimates so off and not even close to correct?I have a home for sale at 3053 S Shore Drive Milwaukee WI 53207 and it is on Zillow twice.The most confusing thing is that each of these have a different (and obviously wrong) (Z)estimates. One has a $338,400 Zestimate with no historical tax data available.One has a $259,800 Zestimate with an assessed value of $292,300 which is incorrect since the city reassessed my home this year after improvements to $396,500.00.How can a site even provide a price on a home that they have never stepped inside of and do it with innaccurate, outdated data?If anyone knows of a class action lawsuit filed by home sellers that I could join I should would like to know as this inaccurate information is helping depress the housing marketSeptember 22 2011 - Bay View0YesReport 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.