Main Interior Building

E15997

The Main Interior Building is a prominent federal office building in Washington, D.C., that houses the U.S. Department of the Interior and serves as the central workplace for agencies such as the National Park Service.


Statements (50)
Predicate Object
instanceOf federal office building
government building
office building
alsoKnownAs Department of the Interior headquarters
Interior Building
architect Interior Department architects
U.S. Treasury Department architects
W. W. Ambrose
architecturalStyle Depression Modern
Stripped Classical
builtFor United States Department of the Interior
city Washington, D.C.
constructionStartDate 1935
coordinates 38.8933°N 77.0417°W
country United States
era New Deal era
governingBody United States Department of the Interior
hasArtCollection yes
hasAuditorium yes
hasBasement yes
hasCafeteria yes
hasFunction government administration
meeting and conference space
office space
hasInteriorCourtyards yes
housesAgency Bureau of Indian Affairs
National Park Service
other Interior Department bureaus
inaugurationDate 1937
locatedIn District of Columbia
United States Capitol complex area
Washington, D.C.
maintainedBy General Services Administration
material limestone
namedAfter United States Department of the Interior
neighborhood Foggy Bottom
notableFor extensive New Deal–era murals and artwork
serving as headquarters of the U.S. Department of the Interior
numberOfFloors 7
occupant Bureau of Indian Affairs offices
National Park Service headquarters
Office of the Secretary of the Interior
United States Department of the Interior
other Interior Department bureaus and offices
openingDate 1937
owner United States federal government
partOf federal government office portfolio
primaryTenant Office of the Secretary of the Interior
publicAccess limited
streetAddress 1849 C Street NW


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