House Office Buildings

Cannon Building

Completed in 1908, the Cannon House Office Building is the oldest House office building.

Ford Building

Constructed in 1939 as Washington D.C.'s first "General Federal Office Building."

Longworth Building

Completed in the spring of 1933, the Longworth House Office Building is the second of three office buildings constructed for the U.S. House of Representatives.

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O'Neill Building

The O'Neill House Office Building was constructed in the early 1960s for use as Food and Drug Administration laboratories. Legislation transferred ownership of the facility to the U.S. House of Representatives in June 2017.

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Rayburn Building

Completed in early 1965, The Rayburn House Office Building is the third of three office buildings constructed for the United States House of Representatives

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Construction work continues in the Cannon Building's west wing.

Projects

Cannon Renewal

The Cannon House Office Building's renewal is an example of the Architect of the Capitol's commitment to preserving our nation's history.

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