Home Values by ZillowI am curious just what Cyrstal Ball Zillow uses to determine a home value? Is it just the square footage footprint and lot size? We have invested over $50K in improving and beautification of our home.I know the geniuses at Zillow can't take in Owner Improvements and TLC. OR! The same sqft and lot size owned by a family of trashy, non-caring homeowners that have put zero money or effort in to their home and live like a bunch of goats. You know the type of people I am referring to. Every neighborhood in the U.S. has them; the blights of the neiborhood that bring every ones property values down.The other problem is comparables. If you are located in a large multi-subdivisioned area I can see no problem. But if you live in a small subdivision with 50 to 100 homes, but the only street leading to the subdivision is dotted with renegades from a land fill, are from the 50's and 60's and not to mention run-down, it does not bode well for comps for the nicer, newer homes maybe 1000 yards away languishing in a subdivision. As you can see from my claimed value, that is adding $55K+ into my home over an 11 year period. My home looks nothing like it did back in 1998.Am I missing something?? LOL Responses welcomeSTGCRETMay 16 2009 - Pace00YesReport 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.