4825 Glenbrook Road is a property that is part of the Spring Valley Formerly Used Defense Site (FUDS), which consists of approximately 661 acres in the northwest section of Washington, D.C. During the World War I‐era, the U.S. government used the site, known as the American University Experiment Station, for research and testing of chemical agents, equipment, and munitions. The Corps of Engineers demolished the house Nov. 30 to clean-up and restoration of the site to residential standards.