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

Renewing the Cannon Building

The oldest House office building (dating back to 1908) is being modernized.

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Capitol Stone & Metal Preservation

Construction of scaffolding and stone preservation activities are underway on the House Extension's façades.

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

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Restoring the windows of the Cannon House Office Building in Washington, D.C.

Restoring the windows of the Cannon House Office Building in Washington, D.C.

Preserving Historic Windows and Doors

February 12, 2019 | by Kristen Frederick

Close-up view of bronze door handle in the shape of a snake. Once part of the entrance to the U.S. Capitol's House chamber.

Close-up view of bronze door handle in the shape of a snake. Once part of the entrance to the U.S. Capitol's House chamber.

Cast in a New Light: The Capitol Bronze...

February 08, 2019 | by Kate Holder

A bowler hat discovered during the renewal of the Cannon House Office Building.

A bowler hat discovered during the renewal of the Cannon House Office Building.

Cool Cannon Construction Finds

January 03, 2019 | by Kristen Frederick