Zillow's estimate is really below for this house47 E. Gay St., Christiana, PAThis is a single home and has historic value. It has a dumbwater and deep root cellar. It is spacious, beautiful open stairway. Fenced in back yard. I (owner) tried upgrading it on zillow but is still isn't appraised correctly. Please advise.Thank youJanuary 07 2010 - Christiana00YesReport 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.