zillow create your own estimate gives a lower estimate for a 2 story home, than a 1 story. why?For all other variables held the same, the create your own estimate tool gives a lower estimate for a 2 story home than one story. Does anyone know why that is? I am looking in Palo Alto, CA.September 28 2009 - Ventura00YesReport 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.