How accurate is zestimate 2021?
Ava Arnold
Updated on February 21, 2026
The Zestimate for off-market homes has a median error rate of 7.3%. The Redfin Estimate for off-market homes has a median error rate of 6.94%. "The accuracy for an on-the-market home is better because we have more up-to-date information," said Rao.