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DANGEROUSLY INACCURATE COMPS & MISLEADING "Zestimate" !!!

Thanks to Zillow's Zestimate, my waterfront property is now $170 UNDER-valued - based on a very recent formal appraisal.  The comparables being used have no rational comonality (aside from being homes for sale in the same state)!   Clearly I'm not alone.  Zillow.com poses a genuine risk to homeowners and is a significant liability !!!

~ Julie

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September 11 2008 - US

Replies (60)

julie,I know what you going thru my house is zestimate at 316.000 on a corner lot and a same house like mine is at 382,000 and with out a bonus room  and no corner lot. how can I send this freaks an e-mail?

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September 14 2008
Profile picture for workabee
Contributions: 504
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Since June 2009

Forget about it. Zillow may correct your house facts, but your estimate number won't get changed from what I have seen.
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September 14 2008
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KesslerDude

Dallas, TX

Contributions: 7

People - don't freak out about Zestimates. They have proven to be extremely inaccurate (I just built my house and they have it estimated at 50% of what I built it for) and the market knows that they "Zestimates" are extremely bogus and useless.

 

If you are talking with or working with someone that uses Zillow Zestimates - run for the hills; they are idiots.

 

Get a certified appraisal!!

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September 14 2008
Profile picture for wrenavery

My zestimates are way off as well, and they have deleted my overview of the property twice.  We've done extensive upgrading, paid tens of thousands more when we bought it than the current zestimate, and they keep removing the info.  I hate that I'm a part of this sham at all.

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September 18 2008
Profile picture for dbhdbhdbh
Contributions: 77

You should realize that the comps listed are for the convenience of people using the site, but that zillow does not use these comps in its prices. So, if the list of comps is inappropriate, this may mislead those looking at your listing, but it does not affect the zestimate.

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September 18 2008

Huh???  Why if the comps are legitimate......would someone (Zillow?) not use them?  This is what REAL professionals do!  The 'zestimates' are worthless and mean nothing, but to someone who doesn't know better, it amounts to false and misleading info/advertising.....and a lot of disgruntled people.  In some instances the Zestimate ' price'  is $40K to $70K up or down from the ACTUAL sold price!!!!  Ridiculous!

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September 18 2008
Profile picture for sunnyview
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dbh is right, not all the comps on the list for your house are comps. I have a "comp" on my list that is over 3000 square feet that is a 5br/3ba. It is on my recently sold list, but it is up to me to be smart enough to realize that it is not a good comp for my 3/2ba. Zillow will not use it to create my Zestimate, although the sold price per squqre foot may affect the trend for the neighborhood.

Each comp list has a range of properties that allow the user to pick and choose what is a comp for their house. It also allows users to pick comps with more square feet if they have made a recent addition or to see what new houses are selling for in the area. The best comp list is the one that the owner themselves with their specific knowledge of the neighborhood using the best comps available on the list.
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September 18 2008

How do you get someone at Zillow to change the Zestimate on my house?  Mine is one of the larger ones in the area and they have it at a way lower price than the smallest ones in my sub.

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September 18 2008
Profile picture for sunnyview
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I don't know that you can get Zillow to "change" a Zestimate. You can create an owner's estimate that might help. Make sure to check all of the listed facts about your house like size, lot size year built, yearly taxes, last sales price etc. for accuracy. The Zestimate should be based on those listed facts so it is important to change them if they are incorrect. If they aren't correct, that might negatively affect your Zestimate. Other than doing those things, I don't know how you could change it since it is set up using a mathmatically based estimate based on public record numbers.
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September 18 2008
Profile picture for ejgallaher

"You should realize that the comps listed are for the convenience of people using the site, but that zillow does not use these comps in its prices. So, if the list of comps is inappropriate, this may mislead those looking at your listing, but it does not affect the zestimate."

 

Around and around and around we go . . . . . . .

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September 19 2008
Profile picture for ZUser1
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ejgallaher:  A Zillow plant.  

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September 20 2008

Well then what does affect the zestimate? Three rolls of a dice? The hair of a nute? I mean really...how can you say that may mislead those looking...PLEASE...it doesn't take much these days to sway a buyer off a owner occupied home...most think we should take the price dives like the bank..yet my home isn't trashed like most bank owned and by the time the new buyers put their money into refurbishing their new finds they have spent as much if not more than my home was listed at. With zestimates being as varied and ridiculous as they are I think zillow should state how they arrive at these outrageous differences!

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September 21 2008
Profile picture for dbhdbhdbh
Contributions: 77

Zillow does not say much about how they do the estimates, but they do indicate that they are based on models that consider sales prices across a range of homes, mathematically adjusting for aspects fo these houses as they are more, or less, similar to the one whose price is being estimated. Thus, zillow says, they prices of a large number of sales are included in the estimate, rather than a small number of comparables. The important point is that the list of comparables that show up in the zillow listing is not the list of sales that was used for the estimate. If anyone has more details of what zillow does, please contribute.

 

The point about misleading was that the comps zilllow lists for people viewing the listing are houses that an individual, not using an AVM, might look at. But, it is not the set of sales that zillow used. So the conclusions from the two data sets might be different.

 

Look, the real estate market is down, and still falling. With the banks now needing a trillion dollar bailout, the days of easy mortgage credit are over. Buyers see prices falling month after month, and wait for the houses they are considering to drop a long way. This is environment in which people are trying to sell houses. A sale from a few months ago needs to be discounted first before being used as a comp now. After last week, who knows by how much. If you are in an area with lots of foreclosed and distressed sales, discount even more if that problem has gotten worse since the comp sale.

 

This is just a lousy time to be selling a house.

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September 21 2008
Profile picture for flipperwoman

I would like to hear(read) what Zillow has to say about this.  I know you guys monitor these discussions so how about an explanation.  My house is also misrepresented due to the fact that the neighborhood houses are for the vast majority unimproved to any degree unless added sq. ft. and these are unpermitted jobs done by low income do it yourselfers.  You can not value a like new remodel at the same price per sq. ft. can you?

 

 

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September 21 2008
Profile picture for dbhdbhdbh
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This is all I could find that zillow says about its use of comps

 

"Zillow however does not directly use the list of comps to calculate the home's Zestimate - rather, the Zestimate algorithm uses information learned from all sales and then tailors your home's Zestimates according to its specific attributes. The comps in the list that you see on your home's detail page on Zillow are selected separately to calculating the Zestimate.

So, it's important to note that if the comps list is missing a few good comparable homes - or including a few than aren't exactly comparable - that your Zestimate won't be caused to be incorrect as a result."

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September 21 2008
Profile picture for ejgallaher

Zuser: You better read a little closer some of my recent messages. I don't think anyone could possibly conclude that I am a Zillow plant . . . ??!!   Or were you referring to dbhdbh . . . ?

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September 22 2008
Profile picture for Mark75NYC
Contributions: 1331

LOL

 

I have been away from the Zestimates thread for some time now, but just popped in to see the topics of discussion in light of the recent financial market meltdown. 

 

ejgallaher, it's too ironic that now you're being accused of being a Zillow plant.  Why, it seems like only yesterday I was in your shoes ...

 

To anyone reading this, I can attest that ejgallaher is definitely not a Zillow plant.

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September 22 2008
Profile picture for sunnyview
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I second Mark75NYC's motion to recognize that ejgallaher is not a Zillow plant. Do I hear a third so we can move to a community vote?
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September 22 2008
Profile picture for chilledsoco

No but this site is messed up.  I moved into a new development with 5 models.  There are 5 of my model in here already built with less SF and less options and they are listed at $250,000 more than my home?  This site is the reason the market will continue to struggle

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September 23 2008
Profile picture for ZUser1
Contributions: 71

ejgallaher:

 

Oh no!  Not you, I was referring to two other people - obsessive posters both.  They both parrot the Zillow line and neither come up with anything original. 

 

ZUser

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September 23 2008
Profile picture for sunnyview
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I hope you don't mean me Zuser. I am certainly not on the payroll and I am at least occasionally original.
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September 23 2008
Profile picture for kenningr

Zillow estimated home values are a total joke. Zillow sent me an email this evening telling me my Lancaster, CA house has a reduced Zestimate, now down to $204,000. The house sold three months ago for $105,000, and now numerous foreclosed houses on that street are selling for around $75,000.  Apparently Zillow hasn't yet figured out that the housing bubble has burst. I have deleted my account with Zillow and recommend you do the same. Zillow pumps out bogus information, the kind of information that got the US economy in the dire straights we now find ourselves.  

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September 24 2008
Profile picture for sunnyview
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I understand your frustration, but if Zillow included all of the foreclosure values in their numbers in CA, people would be inconsolably furious. Most times houses that are sold way out of range for a neighborhood have a "star" by the sales price with a note that says "transaction not included in Zestimate" just for that reason.

REO's often do not represent the real value of a neighborhood. It becomes difficult when there are so many repos in one neighborhood to know exactly how to include them without severely impacting values for houses that are in much better condition (usually) and are not being sold at a fire sale price.
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September 25 2008
Profile picture for ddj61
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Dear Zestimate estimators:  How can I correct the Zestimate on my home at 1337 Kingsfied, 80104?  The upgrades I added are accurate, but due to to housing market and neighborhood comps, the resulting Zestimate was $200K higher ( -/+ ) than I could hope to value my home, which is right around $305 - 310 K. ddj41

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September 25 2008
Profile picture for ejgallaher

Short answer: You can't . . . , and neither can/will Zillow.

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September 25 2008
Profile picture for zilme
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Zillow is completely off.  I have repeatedly wrote to have my home removed they dont even answer.  I guess legal action would have to take place.  Zillow does give false information to the trusting, and population who hopes that there home is worth more than they think.   I have had conversations with people who believe information on Zillow is completely accurate.  VERY MISLEADING!!!

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September 26 2008
Profile picture for mlevang

I recently built a 3BD 3BA custom log home in Southern California.  I built it as owner/builder.  It is a 2200 square foot fully scribed, swedish coped, "big log" on .75 acres.  The lot is a premium lot in a cul-de-sac and backs to Los Padres National Forest.  15825 Edgewood Way, Pine Mountain Club, CA 93222.  If I went by Zestimates, you would find me hanging dead from one of my trusses, dead!  They have it valued at $40,000 less than it cost to build in 2004.  Log homes in the area are selling for around $240 per square foot, not taking into account the value of the premium lot.  I am not in the market to sell but I can sure see where zillow sure gives a false sense of valuations to those who maybe in the market to buy!!

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September 26 2008
Profile picture for sunnyview
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House like yours are very hard to value even for appraisers. Often appraisers will not have recently sold comps for unique homes with in the last three months. They try to get around it by relating the estimate of houses like your by adding the cost of building upgrades onto inferior houses. I think that people must realize on some level that Zillow can't be right about every house especially historic, top quality custom or rare properties. Your house is a good example of what Zillow cannot do well given their format.

However, many houses are not like yours. The last house I sold was in a 1970 subdivision. Many of the same handful of plans (or their flip) in a large neighborhood with comparable lots sizes. They were easy to comp. You could immediately recognize added value for some with updated electrical, heating, roof or windows as a buyer. The assessments were largely the same, lot, sq ft everything very much alike. Zillow could only recognize the difference between those houses when the updated houses sold and the price was higher.

With so much variety, Zillow does what they can, but the best idea of what your house is worth comes from the comps that people know in their neighborhood. Just like you knowing that log homes in your area sell for $240 a square foot. That's the best part about Zillow. You can find the comps that you know are comps and figure it out for yourself with much closer accuracy.

(PS I love those big log homes with the coping. Very rustic, yet fancy too)
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September 26 2008
Profile picture for ejgallaher

"I think that people must realize on some level that Zillow can't be right about every house especially historic, top quality custom or rare properties. "

 

Who are you trying to kid here? Zillow can't be right about cookie-cutter houses on the same block!

 

 

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September 27 2008
Profile picture for sunnyview
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I think we disagree again. The range for cookie cutter houses has in my experience been fairly accurate in the handful of markets that I know well enough to comment on. What they don't account for is major remodel value. If an owner has out in a 50K kitchen remodel in a 350K home, Zillow will never set the value at 400K. First, they don't have proof of the value of the remodel (unless the houses assessment is raised based on new permits) and second, the market is not likely to pay the owner back for 100% of the cost of that type of remodel.

Zillow cannot set a higher value on these houses until a buyer sets the market price when the house is sold. Other houses have other problems that Zillow can't set a lower value on like failed foundations, leaky roof, ugly neighbor houses, cat pee damage etc.

Zillow does what they can, but the best idea of what your house is worth comes from the comps that people already know in their neighborhood--almost like a layman's appraisal of your own house. You use the comps that you know are comps and can figure it with much closer accuracy than a Zestimate could ever provide from volumes of statistics compiled far away. Anybody who relies SOLEY on Zillow Zestimates for their numbers is either very lazy (banks), unfamiliar with real estate (many newer homeowners) or not very smart (politicians). Unfortunately, these conditions are not easily fixed in people or institutions
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September 27 2008

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