Admin

Reason #3 why online home value estimates can be inaccurate

By
Real Estate Agent with Thompson Company, REALTORS® 240.593.2860 MD594797

When establishing the list price for a new home for sale using the most comparable of the most recent sales is key. There is no secret formula but there are some guidelines:

  • architectural style - ideally one compares apples to apples, a Colonial with other Colonials, or a rambler with other ramblers
  • square footage - above-grade square footage matters, comps should fall within the same ballpark
  • age - it should be of similar age
  • proximity - the comps are in the same neighborhood, but if there is no recent sale then we look outside but still within reason (same school district for example)
  • improvements/finishes - the goal is to find comps that are in similar condition (either recently updated or in their original condition)
  • closing date

I always approach this process by keeping the appraisal in mind. While I cannot predict which comps an appraiser will use, I can look for and consider the most likely comps by searching according to the above criteria. 

Reason #3 why online home value estimate can be inaccurate: not using comparable properties

That is not the case for various 3rd party data aggregation sites that many consumers utilize when searching for a new home. Their list of "similar homes" may show some recent sales that are anything but similar, or not really that recent. It can include any home that just sold within the area, no matter its size, style, age, or its proximity to the subject property. 

Since I always check what these sites estimate the value of my listing to be, I've seen some really wacky ones. A townhome will never be used as a comp for a detached single-family home, nor will a garden-style condo play a role when evaluating a duplex. Just because these homes happen to be in the same neighborhood or zip code does not mean they are comparable. A more recent construction is not a comp for a 100-year-old house, or homes that come with an acre or more of land won't be comparable to homes that sit on 0.15 of an acre. 

Similarly, when the two most recent home sales were court-ordered or REO properties, they are not the best comps and can be disregarded especially if other comps are available. If one recent sale has not been updated in 50 years but the other sales have, then we also either disregard it or make adjustments to condition. 

So, next time you check what your home is worth, or what Zillow & Co. think that house you want to put an offer on is worth, take a closer look at the "similar homes", or better yet, consult your REALTOR®.

Pricing a home for sale correctly is not a matter of just taking the average sold price of homes within the area, it is much more nuanced than this. It takes into consideration style, age, improvements, square footage, proximity, and closing dates. It can only be done correctly if time is spent on research and analyzing the most recent sales, there is first-hand knowledge of factors that could up or lower a home's value, and when one sets foot in a home... something an online data aggregation bot will never be able to do. 

Posted by

Andrea Bedard
Thompson Co., REALTORS®

Silver Spring, Maryland
andreabedard.com

Fluent in Real Estate and German.
Old house lover.
Accredited Buyer's Agent.
Certified International
Property Specialist.
REALTOR® on the Run.

Let's write your unique
Real Estate Story.
Happy Ending Guaranteed.

My Blog
About Me
Email Me

Call or text
(240) 593-2860

   

 

Comments(11)

Katina Hargrove 352-551-0308
Stake Your Land Realty, Inc. - Eustis, FL
Broker/Owner, SFR®, e-PRO®, GRI, AHWD, REALTOR®

Andrea Bedard 

Great reasons why costumers should hire real estate experts. Enjoy your day:) Katina

Jul 24, 2024 03:24 PM
George Souto
George Souto NMLS #65149 - Middletown, CT
Your Connecticut Mortgage Expert

Andrea Bedard there are several things that go into establishing the value of a home, and comps are right there near the top.  It is tough to get financing if good comps are not provided.

Jul 24, 2024 07:22 PM
Andrea Bedard

I always prepare a packet for the appraiser with all relevant info, including the comps we used to determine list price and what adjustments we made. I'm always surprised when the appraiser tells me how few agents actually bother to meet them! Thanks for your comment, George Souto

Jul 25, 2024 09:17 AM
Charles Ross - eXp Realty LLC
eXp Realty LLC Salina Group - Salina, KS
Love To Help People

Great points, Andrea! Your explanation highlights the importance of using true comparables when valuing homes. It’s essential for accurate pricing. #RealEstateAdvice 🏠💼

Jul 24, 2024 07:58 PM
Andrea Bedard

Thank you, Charles Ross - eXp Realty LLC

Jul 25, 2024 09:18 AM
John Pusa
Glendale, CA

Hello Andrea Bedard you are right, some online home value estimates can be inaccurate.

Jul 24, 2024 08:23 PM
Andrea Bedard

I've seen some wild ones! Some sellers would have lost a lot of money had they relied on the "guesstimate" for their home. 

Jul 25, 2024 09:19 AM
Endre Barath, Jr.
Berkshire Hathaway HomeServices California Properties - Beverly Hills, CA
Realtor - Los Angeles Home Sales 310.486.1002

Great post and to be on the same page, one house might be next to the 405 Freeway in my market or next to the 10 Freeway and noise and dust will be a deterrent on the price... and one might find a homeless encampment two doors down from the house.... all make a difference, Endre

Jul 24, 2024 09:43 PM
Andrea Bedard

Absolutely, that's another point I plan to make :) Thank you, Endre Barath, Jr. 

Jul 25, 2024 09:19 AM
Richard Weeks
Dallas, TX
REALTOR®, Broker
Great information, thanks for sharing.  I hope you have a great day.
Jul 25, 2024 02:57 AM
Nina Hollander, Broker
Coldwell Banker Realty - Charlotte, NC
Your Greater Charlotte Realtor

Excellent post, Andrea. I always make it a point to share my own comps with an appraiser so they know I didn't just pull our price from air.

Jul 25, 2024 04:53 AM
Andrea Bedard

I do, as well, Nina Hollander, Broker. So often I hear the appraiser say that I am an exception. Blows my mind that not more agents do this. I consider it part of my job description. This expertise is one of the reasons people hire us! 

Jul 25, 2024 09:22 AM
Nina Hollander, Broker

Andrea Bedard hi Andrea... I also suspect that many agents don't really prepare good comps... whenever I've had a house that was more difficult to comp out and I couldn't rationalize and asking price, when I ask the listing agent what they use I get nothing from them.

Jul 25, 2024 10:15 AM
Kat Palmiotti
eXp Commercial, Referral Divison - Kalispell, MT
Helping your Montana dreams take root

So true! Online value estimators are often wrong, and that's because they don't know what is a real comparable property!

Jul 25, 2024 05:07 AM
Andrea Bedard

Right?! it's wild at times what one will find under "similar homes" that sold in the area. Thanks, Kat Palmiotti

Jul 25, 2024 09:23 AM
Brian England
Ambrose Realty Management LLC - Gilbert, AZ
MBA, GRI, REALTOR® Real Estate in East Valley AZ

Online valuations can really get buyers and sellers in a lot of trouble if they are not working with an agent who knows what is really going on in the market.

Jul 25, 2024 06:37 AM
Andrea Bedard

One of my sellers would have lost out on 100K+ had they relied on online estimates of value! I'll follow up this post with a case study :) Thank you for your comment, Brian England

Jul 25, 2024 09:24 AM
Michael Jacobs
Pasadena, CA
Pasadena And Southern California 818.516.4393

Hello Andrea - art and science seem to combine in many aspects of real estate.  Sometimes they combine quite well but there are certainly instances where a collision occurs.  It's likely many real agent professionals can share a story.  Or two.  

Jul 25, 2024 07:31 AM
Andrea Bedard

I am certain it's more than a couple of stories, Michael Jacobs. My last listing is a great example. I plan on writing about it. I saved the screenshots with the before listed/sold estimates! As always, thank you for your thoughtful comment! 

Jul 25, 2024 09:26 AM
Dorie Dillard Austin TX
Coldwell Banker Realty ~ 512.750.6899 - Austin, TX
NW Austin ~ Canyon Creek and Spicewood/Balcones

Good afternoon Andre,

Online value estimators are often wrong, and that's because they don't know what is a real comparable property, they have never seen it or know its history. There is no secret formula compiling valuations but there are some guidelines and experience counts! More to draw on your memory bank of similar scenarios.  

Jul 25, 2024 10:23 AM