Very true, to be sure. "Assume a spherical cow" and all that. But no, not Zillow. One, Redfin seems to be more accurate (but still optimistic) while Zillow is

Very true, to be sure. "Assume a spherical cow" and all that. But no, not Zillow. One, Redfin seems to be more accurate (but still optimistic) while Zillow is -hopelessly- optimistic (or was, I haven't checked in a few months, when they were trying to bail themselves out of their own situation. I "utilize" my friend who is a mortgage broker and they use their own database to determine how they'd either "automatic appraise" a home, or require an actual appraisal. On the flip side, I don't use BOAs valuer, either. While my home is (and always has been) 4br/3.5ba, 2600 sqft, BOA has it as a 3br/2.5ba, 2100 sqft in their database, and had it valued at 25% less than the bank appraiser (which was the most conservative of appraiser, Redfin, Zillow).