How are Zillow Prices determined?To Whom it may concern;I was wondering as to how zillow prices are 'alerted' when there are outside/incremental changes made to the property -- for example at our house we have put nearly $60,000 worth of additions, improvements and enhancements into the property but there is nothing to reflect that within the zillow price....how is that captured?April 26 2012 - Sudbury0YesReport 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.