Bad pricing estimates by Zillow and Redfin are commonplace. Despite starting in 2004, Zillow’s estimates are especially unreliable for some reason. However, you can use bad pricing estimates to your advantage when buying or selling property today.
Over years of comparing the two, I’ve noticed Redfin’s pricing estimates are more accurate. Further, Redfin is much quicker to update the final sales price of a home after it goes pending. But even Redfin has some pricing issues as well.