D.C. Code § 47-1066
The Catholic University of America's Soldiers' and Airmen's Home, parcel No. 121/29, located in the Northeast quadrant of the District of Columbia and comprising approximately 49 acres of land generally bounded by North Capitol Street, Irving Street, Michigan Avenue, Harewood Road, and the Pope John Paul II Cultural Center, together with the improvements thereon and owned by The Catholic University of America, shall be exempt from all taxation so long as it is owned and planned for use by, or actually used by, The Catholic University of America for its purposes and activities, and is not used for commercial purposes, subject to the provisions of §§ 47-1005, 47-1007, and 47-1009, as if the exemption were granted administratively.
D.C. Code § 47-1066