Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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A Cascade of Books by Frank Eliscu (1912–1996) is a bronze sculptural screen that rises five stories above the main entrance to the James Madison Memorial Building of the Library of Congress. Measuring approximately 50 feet high by 35 feet wide, it consists of 98 open books, with some as large as five feet wide.
A Cascade of Books by Frank Eliscu (1912–1996) is a bronze sculptural screen...

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A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by the...

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Yellow flowers in front of the Capitol Building
The Architect of the Capitol annually publishes a wide variety of publications...

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Slave Labor Commemorative Marker in Emancipation Hall at the U.S. Capitol Visitor Center.
Interpreters in Exhibition Hall and Emancipation Hall use a variety of hands-on...

Library Buildings and Grounds Superintendent's Office

Library Buildings and Grounds Superintendent's Office

Skilled tradespersons work behind the scenes providing services to the Library that include: ensuring a safe and comfortable indoor environment; preserving historic structures; maintenance, repair, and construction; and landscape design, planting, and grounds maintenance.

AOC Library Buildings and Grounds, under the direction of the Architect of the Capitol (AOC), is responsible for the day-to-day structural, mechanical and grounds care of the Library of Congress. This includes the Library's three buildings on Capitol Hill and a number of facilities beyond Washington, D.C., including The Packard Campus of the National Audio-Visual Conservation Center in Culpepper, Virginia.

AOC Library Buildings and Grounds is comprised of a variety of skills and trades including the operation of the air conditioning, electrical, elevator, fire/electronics, masonry, painting and refinishing, plumbing, sheet metal, mechanical, and landscaping design and maintenance.

These skilled tradespersons work behind the scenes providing services to the Library that include: ensuring a safe and comfortable indoor environment; preserving historic structures; maintenance, repair, and construction; and landscape design, planting, and grounds maintenance.

Need Assistance?

Contact the Library of Congress Superintendent's Office 24 hours a day, seven days a week, at 202.707.5157.

Online Work Request Form (must be connected to Capitol Hill network to access link)

Project Updates

Stay up to date on projects underway across Capitol Hill.