- Find a Real Estate Professional
- Realtors®
- Mortgage Lenders
- Home Improvement Pros
- Other Real Estate Services
- Review an Agent, Lender or Pro
- Marketing on Zillow
- Real Estate Agent Advertising
- Join the Professional Directory
- Popular
- Real Estate Market Reports
- More
Answers (3)

- Alisa Hagner, "AlisaDenver"
- Contributions:381
It's called a forensic appraisal. A local appraiser should be able to quote you how much this will cost.

- Vince Curtis, "SoCal Appraiser"
- Contributions:4699
Yes and no.
If you are asking, it usually means some type of tax or estate purpose. If that is the case, neither a Zestimate, nor a back-dated Zestimate, is reliable, nor accepted by a court.
That said, you can estimate a back dated value simply by looking at your chart on Zillow in the 10year mode. Bring your curosor to the point in 2006 you want it and its right there. That 'assumes' though your Zestimate was and is currently 'correct'.
For serious purposes though, contact an appraiser through this website, and shop around for the best price.
If you are asking, it usually means some type of tax or estate purpose. If that is the case, neither a Zestimate, nor a back-dated Zestimate, is reliable, nor accepted by a court.
That said, you can estimate a back dated value simply by looking at your chart on Zillow in the 10year mode. Bring your curosor to the point in 2006 you want it and its right there. That 'assumes' though your Zestimate was and is currently 'correct'.
For serious purposes though, contact an appraiser through this website, and shop around for the best price.
That is a little tricky on this site...
But you can get the Zestimate trend from the property of interest for the past 10 years, if you chose 10 years on the site, and that can be downloaded if one finds the hidden referenced URL and you know the conversion factors.
But the Zestimates fluctuate too much to be useful for that; the Local Info "Z-Index trends" and tiered trends tend to be represent the market changes better. One can average the Zestimate trend values from 2006 forward, and use that to scale the Z-Index trend data to produce a curve for the property of interest. All the Local info trend data is downloadable in excel format.
There is a link for "comparable sales" and another for "comparable listings" on the home details page, but that is created after the estimate and not used for the estimates. But if you have no trend data for your house you might be able to use trend data from similar houses.
Otherwise, you are probably better off contacting a licensed appraiser for a back-dated appraisal.
But you can get the Zestimate trend from the property of interest for the past 10 years, if you chose 10 years on the site, and that can be downloaded if one finds the hidden referenced URL and you know the conversion factors.
But the Zestimates fluctuate too much to be useful for that; the Local Info "Z-Index trends" and tiered trends tend to be represent the market changes better. One can average the Zestimate trend values from 2006 forward, and use that to scale the Z-Index trend data to produce a curve for the property of interest. All the Local info trend data is downloadable in excel format.
There is a link for "comparable sales" and another for "comparable listings" on the home details page, but that is created after the estimate and not used for the estimates. But if you have no trend data for your house you might be able to use trend data from similar houses.
Otherwise, you are probably better off contacting a licensed appraiser for a back-dated appraisal.



Is there a way to search comps to get a value on your home from 2006
Stating a discriminatory preference in an advertisement for housing is illegal. If you think this content is discriminatory or otherwise inappropriate and feel it should be removed from Zillow, please let us know by completing the information above.
We will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.