I'd like to search for houses based on the difference of the z-estimate and the sale price.Possible?Also most recent tax assessed price minus sale price would be good. Trying to determine which houses have the most potential equity.July 27 2012 - US00YesReport 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.