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Real Estate Assessments

** The 2021 real estate assessments are available on-line at

**COVID-19 Update – June 30, 2020: Prince William County re-opened county facilities to the public on Wednesday, July 1, 2020, in accordance with Governor Northam's authorization of Phase 3. The Finance Department’s public-facing offices are Taxpayer Services and Real Estate Assessments. Taxpayer Services will be fully operational for walk-in visitors, with the exception of the Ferlazzo building location which will remain closed until further notice. Real Estate Assessments is open to the public by appointment only. Face coverings (as defined below) will be enforced in all County buildings. All other Finance offices will remain open for business virtually. For details on office locations, visit: Contact Us

Prince William County Government is committed to providing a safe workplace for all employees and customers. Consistent with the Governor’s Executive order 63, County employees that serve the public and members of the public aged ten and over are required to wear a mask and practice social distancing when entering, exiting, traveling through, and spending time inside Prince William County government facilities for the purpose of securing public services County buildings.


All real property in Prince William County, except public service properties (operating railroads, interstate pipelines, and public utilities), is assessed annually by the Real Estate Assessments Office.

The Assessments Office mailed the 2021 assessment notices beginning March 9, 2021.  You may view the 2021 assessments via the online Real Estate Property Assessment System.  

The Real Estate Assessments Office collects information regarding property descriptions, property sales, and other real estate market data. To ensure property descriptions are accurate, County appraisers periodically inspect properties to verify current data.

One or more of the following methods is used to value property:

  1. The Sales Comparison Approach:  The assessed value is based on recent sales of similar properties.  Properties that have sold are analyzed and adjustments are made for differences such as size, condition, age, location, and interior and exterior amenities.

  2. The Cost Approach:  Current materials, labor costs and depreciation rates are used to determine how much it would cost to replace a property.  Also, the Assessments Office determines how much a similar lot would be worth if it were vacant.

  3. The Income Approach:  Industry-derived figures are used to determine the income a property would generate and the cost to maintain and operate that property.

Real estate assessments are a matter of public record.  Other public information available at the real estate assessments office includes sale prices and dates, legal descriptions, descriptions of the land and buildings, and ownership information.

If you have questions about the real estate assessment process, please contact the Real Estate Assessments Office at 703-792-6780 or


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