The leading real estate marketplace. Search millions of for-sale and rental listings, compare Zestimate home values and connect with local professionals..It is a starting point in determining a home 's value and is not an official appraisal. The Zestimate is calculated from public and user-submitted data. Updating your .According to an independent study of on-market homes, the Redfin Estimate is the most accurate among leading automated home-value tools. Like other estimates, this is not a formal appraisal or subs.ute for the in-person expertise of a real estatet or professional appraiser..Get a home value estimate today. Browse through our home values for all of your real estate needs at RE/MAX..