BoA uses the data provided by zillow in its evaluation of the LTV ratio for existing Helocs Last week, when I noticed Zillow stopped providing its zestimate on my home, listing it as N/A, BoA blocked my Heloc due to,as they stated, declining LTV. I know BoA uses a zestimate valuation (hence why I here discussing this). I noticed as soon as Zillow failed to provide its zestimate of my home, BoA took this actionSeptember 02 2009 - Friendsville0YesReport 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.