Data Sources

  • Multiple Listing Service and MRIS

    • http://www.mris.com

  • CoStar and Comps Data Services

    • http://www.costar.com

  • Current tax maps for all jurisdictions in Northern Virginia


  • Marshall & Swift Residential Cost Handbook, the Marshall Valuation Service Cost Manual, and various cost manuals published by the R.S. Means Company.

    • http://www.marshallswift.com

  • Periodicals including, but not limited to, Price Waterhouse Coopers, Korpacz Real Estate Investor Survey, Valuation Insights and Perpectives (AI), and The Appraisal Journal.


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