Attn Fannie Mae: Forget About Appraisals, Let’s Use Zillow

by Ryan Hinricher on November 15, 2009

ZillowLogoIsn’t it time we all be honest with ourselves?  The real estate industry is f’d.  It’s one of the oldest industries known to man and is one of the most resistant to change.  It’s time we dump the old appraisal model and switch to Zillow.  When Zillow debuted  in 2005 with its Zestimate, it was almost immediately discredited by real estate appraisers and professionals everywhere.  I remember everyone joking about its lack of accuracy.  But much has changes in the last 4 years and the processes and people who were once laughing about Zillow are now the same reason the real estate industry is in total shambles.  The recent Home Value Code of Conduct is still based on art rather than science.  This has the new goal of not influencing appraisers, but how is this better?  If I order 3 appraisals I still get 3 wildly different values.   At best it’s a band-aid on a broken arm.

Last week a lender turned down a client of mine because the appraisal came in at $110,000.  Another lender had it appraised at $156,000.  Worse yet the appraiser lives an hour into Mississippi and is driving to Memphis to do the appraiser when there are hundreds of qualified appraisers to do the job right here in the Memphis area. This is happening everyday in the real estate world.  Some how the Feds thought we could just stop the appraisers from talking to the lenders and introduced HVCC.  This has definitely happened although some appraisers are just forming their own Appraisal Management Companies with their buddies to get around this.   I feel the Feds simply created another level of bureaucracy and loopholes.   Why don’t banks, lenders, and Fannie Mae just start using Zillow?

Zillow is more science than art and that’s just what the real estate industry needs.  Although I own a real estate estate company, and pay dues to the REALTORS, why do I have to sit through another commercial with people pressuring buyers to only use REALTORS?  The real estate economy is f’d right now without some massive improvements.  Zillow could be the just the medicine it needs.   They’ve created an algorithm that is not reliant on human opinion.  It’s reliant on actual existing data.  How they crunch that data to come up with a Zestimate is still up for debate.  A system that crunches more data than any appraiser can personally handle must be more efficient an accurate than the opinion of one person.  I’ve noticed Zestimates being more in line with the middle ground of what these varied appraisers are coming up with.

Now even I have been opposed to Zillow in the past, but as they continue to improve their model, I’d rather my business rely on some scientific computation from some guys that founded Expedia and Hotwire (which changed the entire inefficient travel business),  instead of a bunch of opinions and lobbying.   Plus these guys have no problem digging deeper into discrepancies in their model and personally addressing it.  I’ve received direct responses from COO Spencer Rascoff and Chief Economist Stan Humphries on questions, something that is a total crap shoot when dealing with underwriters at any bank.  Face it real estate needs more science and less art.  The timing of a switch of this magnitude couldn’t be more perfect.  Plus doesn’t it make sense that the Feds do business with the only entity bold enough to put a value on the White House?

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{ 43 comments… read them below or add one }

Rachel Rosen November 24, 2009 at 3:25 pm

Rachel from Zillow here…interesting article!!

Ryan Hinricher November 24, 2009 at 3:29 pm

Rachel, thanks for the comments. I feel the algorithm is better than the opinion. I'm planning an experiment: Order 10 appraisals on 1 property and see how widely the results vary. There must be a better way. I'd love to hear how Zillow is improving the algorithm. Cheers

Joshua Dorkin December 28, 2009 at 5:09 pm

How did that experiment go, Ryan?

Ryan Hinricher December 28, 2009 at 6:16 pm

Joshua, I feel like the post was ahead of its time. :)

Seriously, there was a push for automated valuations back when I was an underwriter with Wells Fargo in the late 90's and early 2000's of course during the boom. I feel like there will be a new push towards this once the market stabilizes again. This time with better data and a higher degree of accuracy.

Groundswell hasn't happened yet.

bw February 16, 2010 at 7:09 am

Ryan, you do know that Zillow is highly inaccurate. Zillow even states this. As a business person when is the last time you would have accepted a deal where I told you the data is within 5% of the price 20% of the time with a 20% margin of error? If they are the kind of numbers you are comfortable with, I have a bridge in Brooklyn I would like to sell you as well as some great Ocean Front property in Arizona.

Ryan Hinricher February 16, 2010 at 7:39 am

If the accuracy is better than the current human based system of appraisals (I've seen appraisers appraise the same property for $50k and $100k recently), then I'm for it. Here's a link to the accuracy and it might surprise you: http://www.zillow.com/howto/DataCoverageZestimateAccuracy.htm

If the HVCC made any sense I might not be voting for an overhaul, however HVCC has appraisers living 50 miles outside of my metro area writing appraisals for the lowest cost leaving all parties involved in transactions stunned.

Are we using appraised value on the property in Arizona or Zestimate? I might go with the Zestimate.

Eva April 4, 2012 at 10:21 am

cool!

Lucy April 29, 2012 at 12:27 pm

I feel the old system would be fine if eenfrcod. One out every 10 or 20 loads should get kick out for complete review. If they find poor work by the appraiser, underwriter or anyone they would apply the rules and give warning or worse.They system did not enforce it own rules and laws and now we have another to deal with rather than just monitor systematically for good performance and to eliminate any coercion.

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