The Pitfalls of Automated Home Values: Why They Often Get it Wrong

Janey Bishop
Janey Bishop
Published on October 16, 2023

In today’s digital age, homeowners and prospective buyers have easy access to a wealth of information regarding real estate. Automated home valuation tools like Zillow’s Zestimate have become increasingly popular for estimating property values. However, these tools are far from infallible and often generate inaccurate estimates.

Sadly, most real estate consumers don’t understand this, leading to overpricing of homes.

In this blog post, we will explore why automated home values are frequently wrong and shed light on the factors on which websites like Zillow base their Zestimates.

Lack of human oversight

One of the primary reasons why automated home values often miss the mark is the absence of human oversight. These valuation tools rely on algorithms and data-driven models to estimate property values, disregarding the subjective factors that can significantly impact a home’s worth.

Automated systems often overlook the home’s unique features, renovations, neighborhood dynamics, and local market conditions. In the San Fernando Valley many of the homes were built in the 1950s, 1960s and 1970s so some have been fully updated and others are mostly original. The automated algorithm can not pick up the nuances of this and compares them more equally than it should. Consequently, this leads to inaccurate estimates, as algorithms fail to capture the full complexity of the housing market.

Insufficient data accuracy and completeness

Automated home valuation tools rely on vast amounts of data to generate estimates. Websites like Zillow aggregate data from various sources, including public records, tax assessments, and previous sales data. However, the accuracy and completeness of this data are not always guaranteed.

Then, there are real estate agents (who are required by their MLS to update their listings on that platform within a certain time period) who aren’t held to the same stringent rules.

They often neglect to update listing information on automated home value websites, causing information to become outdated. There’s nothing more frustrating than finding your dream home for sale on Zillow only to learn that it sold a week ago.

Inability to account for unique features and upgrades

Automated valuation tools struggle to account for the unique features and upgrades that differentiate one property from another. This is something a professional appraiser will not miss, by the way.

They often rely on general characteristics of similar homes in the area, failing to consider specific details that can significantly impact a property’s value. Features like a remodeled kitchen, a swimming pool, or a picturesque view can dramatically affect a home’s worth but are challenging for automated systems to accurately assess. Other factors like being located on a busy street or having a neighboring house that is in very bad shape can impact the value of a house too. Consequently, these tools may undervalue or overvalue a property, leading to misleading estimates.

Ignoring local market dynamics

Real estate markets are dynamic and can vary significantly from one location to another. Automated valuation tools, however, often fail to consider the intricacies of local markets.

They rely on broader market trends and regional averages, which may not accurately reflect the nuances of a specific neighborhood or city. In the San Fernando Valley factors like school district ranking, nearby amenities (easy freeway access but little freeway noise), transportation infrastructure, and local economic conditions can all influence property values, but they are difficult for automated systems to incorporate.

Consequently, estimates may not align with the reality of the local market, leading to erroneous valuations.

Lack of contextual understanding

Another inherent limitation of automated home valuation tools is their inability to accurately comprehend a property’s ambiance. They fail to consider subjective factors such as curb appeal, architectural style, and overall condition. In the San Fernando Valley landscaping, water usuage and being rated a high fire district can be important factors that Buyers consider.

The emotional appeal of a property, which can significantly impact its value, is challenging for algorithms to gauge. On the other hand, human appraisers can and do, recognize and factor in these nuanced elements when determining a property’s worth, providing a more comprehensive and accurate assessment.

While automated home valuation tools offer convenience and quick estimates, they are prone to significant inaccuracies.

It is crucial for homeowners and prospective buyers to approach automated home values with caution and rely on them as a starting point rather than a definitive measure of a property’s worth.

Who to Call

General real estate agents are great for working on every day transactions but if you are a Senior who is downsizing, a family settling an Estate in Probate or Trust administration or a family in a Divorce you need a real estate professional trained for these cases.

For a free consultation on your home’s value, how to prepare your home to sell or the real estate market in general call me at (818)570-1144 or email [email protected] ​​ or visit https://janeybishop.com

​SRES, CPE, CPRES, RCSD, CDRE

Senior Real Estate Specialist        Certified Divorce Real Estate Expert    Certified Probate Expert

Certified Probate Real Estate Expert         ​ Real Estate Collaborative Specialist – Divorce

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