It’s fun to enter and address on a website and instantly receive an estimate of what that property is worth. But the data that powers many of those automated valuation models are inaccurate and unreliable. Who says? The Websites themselves. Look below to see how popular sites that offer online price estimates describe limitations with their own data.

Zillow.com

“The Zestimate is not an appraisal and you won’t be able to use it in place of an appraisal, though you can certainly share it with real estate professionals. It is a computer-generated estimate of the worth of a house today, given the available data. Zillow does not offer the Zestimate as the basis of any specific real-estate-related financial transaction. Our data sources may be incomplete or incorrect; also we have not physically inspected a specific home. Remember, the Zestimate is a starting point and does not consider all the market intricacies that can determine the actual price a house will sell for.”  Source

Trulia.com

“If you’re looking for a precise value for your home, or if you’re thinking of selling your home, we recommend you talk to a real estate professional. After all, our algorithms are smart, but we can’t know everything about your home’s features and location. Connect with a real estate experts in your area.”  Source

Homes.com

“We’re not suggesting that you use our home value estimate in lieu of an appraisal from trained professionals when selling, purchasing, or refinancing, but it’s the perfect source when you just need a reasonable estimate and you don’t want to wait.”  Source

Chase.com

“The data and valuations are provided as is without warranty or guarantee of any kind, either express or implied, including without limitation, any warranties of merchantability or fitness for a particular purpose. The existence of the subject property and the accuracy of the valuations are estimated based on available data and do not constitute an appraisal of the subject property and shouldn’t of the subject property and should not be relied upon in lieu of underwriting or an appraisal.”  Source

Housevalues.com

“For a professional valuation of your home that includes all the information about your property(plus overall condition, style of house, and other features) please contact a real estate expert.”  Source