About 2-3 weeks ago I noticed that the estimate for all houses dropped about $20K. What happened?About 2-3 weeks ago I noticed that the estimate for all houses dropped about $20K. For instance, my house est. dropped about $20k about 2 weeks ago, but your graphs now show my house much lower dating back to 2009. If my house did indeed drop $20k, wouldn't that just show a sharp drop as of recently? June 28 2011 - North Raleigh00YesReport 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.