How Accurate Is My Zestimate, and Can I Influence It? (2024)

So you are thinking of selling your home, but wondering if you’ll make enough money for your effort to be worth it. That’s the first step in selling a home: determining your likely return on investment at the close of any deal.

And of course, a fast, easy way to gauge your home’s market value is to check its Zestimate.

What’s a Zestimate?

A Zestimate valuation is a proprietary Zillow tool for getting a free, instant estimate of a home’s market value. The Zestimate is calculated through a Zillow algorithm that crunches data from public property records, tax records, recent home sales in the area, and user-submitted information to come up with an approximate market value for a home.

The Zestimate takes into account:

  • Home details like square footage, location and the number of bedrooms and bathrooms.
  • On-market data such as listing price, description, comparable homes in the area and days on the market.
  • Off-market data such as tax assessments, prior sales and other publicly available records
  • Market trends, such as seasonal changes in demand.

A Zestimate is not an official appraisal, but it is a powerful tool for sizing up your home’s market value and planning your next move. Zillow publishes Zestimates for more than 104 million homes across the country. The Zestimate formula uses hundreds of data points for each home to come up with a number representing the likely selling price of that home.

How accurate is a Zestimate?

Zestimates are generally quite accurate. The median error rate for the Zestimate of U.S. houses on the market is just 1.9 percent. The median error rate for houses that are not on the market is higher, at 6.9 percent, but still close enough to do your preliminary planning.

A Zestimate’s accuracy depends on the data available in the geographic area around a home. Some counties and cities have detailed public information available about a home’s size, features, and age, while others do not. The more data that’s available to put into that formula, the more accurate the Zestimate will be. You can learn more specifics about the accuracy of the Zestimate in your market in this FAQ.

In major metro areas around the country, from Austin to Atlanta, and Cincinnati to San Diego, the Zestimate for on-market homes is within 20% of the actual selling price more than 99% of the time.

What if my Zestimate seems too high or too low?

The amount of data we have for your home and other homes in your area directly influences the Zestimate. So you can make your Zestimate more accurate by providing more information about your home. The first step to doing that is to claim your home and edit your home facts on Zillow. All that takes is entering your address on Zillow and taking a few steps to prove you’re the home’s legal owner.

From there, tell us more information about your home — like that you added a main bedroom, remodeled the kitchen or built a pool. Or you can correct inaccuracies — like telling us there are three full bathrooms instead of two in your home. The additional information will be included in your Zestimate, potentially making your home valuation more accurate. Because the more data we can put into the algorithm, the closer to the actual appraised value the Zestimate will be.

You’ll also want to check the sale dates for your home on Zillow to make sure they’re correct, as well as your property tax history. And consider letting your local tax assessor know about any home updates you’ve done. If there have been additions, updates or other work that your tax assessor doesn’t know about, they’re likely not reflected in your Zestimate, either.

Lastly, be aware that the Zestimate changes in response to market trends and even shifts in seasonal demand. If you see unexpected movement in your Zestimate, that could be the reason.

More questions about the Zestimate? Read a detailed FAQ about how it works.

Check out more helpful tools for sellers

Now that you know more about a Zestimate's accuracy, check out more free Zillow tools to help homeowners sell their homes smoothly.

Zillow’s Home Sale Proceeds Calculator can estimate how much profit you’ll make from selling your home. It takes into account the true costs of selling a home — like repairs and staging needed to help a house put on its best face for buyers, agent commission, and closing fees — to tell you how much it will cost to sell your home, and how much you’ll put in the bank when it’s all said and done.

Find an agent to guide you through the process of selling your home on Zillow’s directory of real estate experts. Hiring a savvy agent is one of the best moves you can make in selling your house. They know what’s going on in the local market, can point out home improvements that will increase your home’s value before you list, and help you market your home so you make as much money as possible from the sale. Simply put, an agent is your best friend when it’s time to sell your biggest investment.

How Accurate Is My Zestimate, and Can I Influence It? (2024)

FAQs

How Accurate Is My Zestimate, and Can I Influence It? ›

The nationwide median error rate for the Zestimate for on-market homes means that half of all on-market homes are within the median error vs. the selling price, and half are not. For most major markets, the Zestimate for on-market homes is within 10% of the final sale price more than 95% of the time.

How accurate is my zestimate? ›

Accuracy of Zestimates

According to Zillow's website, Zestimate's nationwide median error rate for active listings is 2.4%. 3 For off-market homes, it's now 7.9%. 4 Zestimates are only as accurate as the data behind them.

How do you influence Zestimate? ›

How to change your Zestimate. One of the easiest ways to change your Zesimate is by editing your home's facts on the site. A real appraiser will look at the features of your home to decide it's worth. Now you can update your home facts in Zillow to reflect some of the things an appraisal would typically show.

What to do if a Zillow zestimate is wrong? ›

The amount of data we have for your home and other homes in your area directly influences the Zestimate. So you can make your Zestimate more accurate by providing more information about your home. The first step to doing that is to claim your home and edit your home facts on Zillow.

Is zestimate usually close to appraisal? ›

Key Takeaways

Zestimates provide reasonable nationwide home value estimates, but have a wider range of accuracy for individual properties. Unique home attributes and real-time market shifts get accounted for better in professional appraisals, making gaps between the two hard to predict.

What is the most accurate home value estimator? ›

Any one of these options will give you a good idea of what your home is worth.
  1. Redfin's “How Much is my House Worth?” Tool. Redfin is one of the leading real estate websites. ...
  2. Zillow “How Much is My Home Worth” Checker. ...
  3. Realtor.com Home Value Estimator. ...
  4. Chase Home Value Estimator. ...
  5. Remax Home Value Estimator. ...
  6. Trulia.
Jan 21, 2024

Why is my house worth less than my neighbors on Zillow? ›

There are several reasons why Zillow's Zestimate may be inaccurate. For one, the feature relies heavily on publicly available data, such as property tax records and past sales data. This means that it may not take into account certain factors, such as renovations or additions to a home, that could affect its value.

Why did my zestimate drop drastically? ›

Zillow may adjust your home value estimate according to the market. In general, homes are worth more during a seller's market than during a buyer's market. If you checked your Zestimate during a hot seller's market, then checked it again when the market turned cool, your home value may have taken a hit.

How to boost home on Zillow? ›

Here's how to make your home listing stand out online.
  1. A home with all the fixings.
  2. Declutter and depersonalize.
  3. Make a great first impression.
  4. Take advantage of Zillow Immerse.
  5. Add a 3D Home tour and interactive floor plan.
  6. Write a compelling listing description.
Apr 17, 2024

Why do some homes not have a zestimate? ›

Insufficient transactional data — It's possible we do not have enough county transactional data, so we cannot calculate a Zestimate.

Is zestimate or Redfin more accurate? ›

Zillow: Redfin is more accurate when valuing homes. Both Zillow and Redfin give homes an approximate value, but the Zestimate provided by Zillow has proven slightly less accurate than Redfin's estimate. Final numbers depend significantly on the local market and demand for a property in your particular location.

How do I correct inaccurate information on Zillow? ›

How do I edit the information about my home?
  1. Sign in to your Zillow profile.
  2. Click on the profile icon, then select Your homes from the menu option.
  3. Click on the tile for your home to load the property page. ...
  4. Once you have claimed your home, click on the Edit Facts icon from the Owner View of the property page.
Feb 26, 2024

Did Zillow get sued for Zestimate? ›

Last year, a real estate lawyer in Illinois sued Zillow, alleging that the Zestimate tool constitutes an appraisal and created a “tremendous roadblock” to selling a home. That case was eventually dismissed, but the lawyer, Barbara Andersen, later refiled and her amended complaint is still pending.

How reliable is zestimate? ›

The nationwide median error rate for the Zestimate for on-market homes is 2.4%, while the Zestimate for off-market homes has a median error rate of 7.49%. The Zestimate's accuracy depends on the availability of data in a home's area.

How accurate are real estate appraisals? ›

There's an acceptable variance when it comes to home appraisals. It usually depends on the prevailing market conditions. In markets with favorable conditions, the difference should be between 2% and 3% of the other values. For markets with challenging conditions, a 10% difference may be acceptable.

Why does Zestimate change after listing? ›

And if a Zestimate updates after a home is listed, she added, that is typically because the Zestimate factors in new property data made available by the listing (e.g. square footage, waterfront views) — not the list price itself.

Why does Zestimate fluctuate? ›

Comparable sales and market shifts account for many Zestimate drops as values follow broader trends. Zillow's algorithms automatically adjust for new data, sometimes lowering estimates in the process. Home specifics like renovations and condition changes can also trigger Zillow drops in house values.

Is realtor.com estimate accurate? ›

Are Realtor.com Estimates Accurate? Realtor.com estimates are very accurate, but they do not hold 10% of the time.

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