# Where do you get the zestimate from?

• Contributions:8
This is regarding property at 2602 Calumet.
April 17 2012 - Huntsville
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• Contributions:52
This is a CMA: COMPARATIVE MARKET ANALYSIS of 2602 Calumet
http://nalmls.com/NALMLSReports/ListitLib/show_report.aspx?ID=5415666767
let me know if this helps.
[email removed by Zillow moderator]
Kristianne Earnhardt
Assocaite Broker, ABR
[phone removed by Zillow moderator]
April 17 2012
How do we come up with the Zestimate?

"We compute this figure by taking zillions of data points - much of this data is public - and entering them into a formula. This formula is built using what our statisticians call "a proprietary algorithm" - big words for "secret formula."  Currently, we have data, Zestimates and Rent Zestimates on approximately 100 million homes on Zillow."
What is a Zestimate FAQ

Zillions of data points & a "a proprietary algorithm" - big words for "secret formula." ......Impressive ;)
April 17 2012
The FAQ "Valuation Tools" provides background on the Zestimate.     As an outsider, there are two things I always look for related to Zestimate calculations:

1.  Are there missing data?   In the property mentioned, no lot size is shown and providing that may help the calculation.

2.  What is the value range?  For the home in question, the value range is \$192K – \$621K.   This wide range supports the hypothesis of missing data for both the home as well as sparse data in the community.

Zillow Academy offers a number of training tools  free including background on Zestimates for agents.
April 17 2012

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• April 22
##### QuestionSeveral items listed on 4406 Tree Ridge Circle in Owens Coss Roads were incorrect.
• Latest answer by Ice L.
• August 23 2012
##### QuestionWhere do you get the zestimate from?
• Latest answer by Kristianne Earnhardt
• April 17 2012
##### QuestionWHY HASN'T THE SQ FOOTAGE HAS NOT SHOWN SINCE AN ADDITION WAS DONE???
• October 30 2011
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