CFA 19/FEB/26-g

Location

10th Street and Constitution Avenue, NW
Washington, DC
United States

Owner
Smithsonian Institution
Property
National Museum of Natural History
Description
Installation of rooftop antenna enclosures
Review Type
Final

Recommendation

No objection to final design for the installation of rooftop antenna enclosures, per materials received 5 February 2026. Scope of work includes the installation of four 5'-6" "stealth" enclosure walls on the the roofs of the non-historic east and west wings in each quadrant of the building. The enclosures would sit directly in front of the existing mechanical penthouse screen walls and would terminate below the existing penthouse cornice to reduce the visual impact. Refer to DC Historic Preservation Office.