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

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This painting by Allyn Cox depicts the cornerstone laying ceremony and is currently on display in the House Wing of the U.S. Capitol Building.
The cornerstone was laid on Wednesday, September 18, 1793, during the first...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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Photo of Capitol Hill steps.
Download a PDF of the full list.

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Juan Sandoval and Jose Hernandez using a lewis to remove stones from Olmsted Terrace.
Addressing the stone pandemic across the Capitol campus takes a team of...

Due to its advanced age, the House of Representatives is in the early planning stages for a top-to-bottom renewal of the Cannon House Office Building. The AOC has assembled a team of in-house experts and consultants who are working with House leaders to define key aspects of the project. This initial effort will better define the estimated costs, scope of work, and potential timeline for the work. The AOC expects this initial planning to conclude in 2012. 

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Cannon House 1908
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