Market Values 18.2% Higher Than County Assessments

Market Values 18.2% Higher Than County Assessments

  • 02/1/21
Question: How accurate are the County’s tax assessment when it comes to determining the market value of a home?
Answer: Arlington’s property tax rate will remain unchanged in 2021 at just over 1%, but many homeowners will pay more in property taxes because of higher assessed values from the County. For those with plans to sell in the near future, the rapid appreciation of Arlington real estate values is a good thing, but for those with no plans to sell, appreciation simply means a higher annual tax bill.
If you’re upset by recent increases in your home’s assessed value, just know that you’re most likely getting a significant break compared to your home’s actual market value. Homes that sold in 2020 sold for an average of 18.2% (14.9% median) more than their most recent assessed value by the County. Last year, the average difference was 14.2% and the year before it was just 7.6%.
If County assessments were representative of actual market values, the average Arlington homeowner would pay just over $1,100 more per year in property taxes. So don’t forget to send the Department of Real Estate Assessments a Christmas card this year for such generous valuations.
Only 5.9% of homes sold for less than their most recent assessed value. On the other end of the spectrum, 6% of homes sold for 38% or more over their most recent assessed value.

Let’s take a look at the data!

Zip Code/Property Type  Difference of Sold Price to Assessed Value   Standard Deviation of Difference Average Difference in Dollars
22201 15.0% 19.9% $104,341
22202 19.3% 15.6% $106,849
22203 16.8% 17.8% $90,066
22204 18.5% 12.9% $79,353
22205 22.1% 28.4% $176,473
22206 19.0% 10.8% $80,432
22207 21.5% 32.4% $188,480
22209 13.0% 11.1% $65,674
22213 23.1% 40.8% $171,539
Condominium 15.7% 11.2% $61,394
Detached/Townhouse 21.1% 27.7% $169,877
Arlington Total 18.2% 21.0% $111,887


If you believe that the County’s assessment of your home’s value is too high, you have the right to appeal the assessed value, but that must be done by March 1. Here are the key steps in appealing your assessment:

  • Your first appeal with the Dept of Real Estate Assessments must be filed by March 1

  • Step 1: Call 703-228-3920 for information on how your assessment was determined

  • Step 2: File your appeal online here (First Level)

  • Step 3: An assessor will visit your home and you can provide relevant info to make your case

  • Step 4: If you’re not satisfied with the decision or have not received written notice by April 1, file your second appeal with the Board of Equalization online here (Second Level) by April 15

  • Step 5: If you’re not satisfied with the decision, your final option for appeal is with the Circuit Court, which will likely require you to hire an attorney

If you’d like to discuss buying or selling strategies, don’t hesitate to reach out to me at [email protected].


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