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

The Cannon Building has not received a comprehensive systems upgrade since the 1930s, and many of the building's systems are original – dating back to 1908 or earlier. The systems are past the end of their useful lives and the increasing risk of their failure jeopardizes the building's long-term functionality and safety. Other necessary work includes upgrading infrastructure systems and repairing the exterior stone façade.

Current Phase: Phase 2 - North Wing

Historic Preservation

As an authority on historic preservation, the Architect of the Capitol (AOC) follows conservation principles. The renewal of the Cannon House Office Building is an example of the AOC's commitment to preserving our nation's history one project at a time for future generations to appreciate and enjoy.

Historic Preservation: Cannon House Office Building

Resources for House Staff

The pages below are restricted to the Capitol Network only.

Related Stories

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

Cool Cannon Construction Finds

During the process of renewing the Cannon House Office Building, workers have found hidden treasures that had been lost or discarded by the laborers who constructed the building more than 100 years

History & Discoveries

Revealing a Tiled Treasure

The year is 1881. In September, U.S. President James Garfield has unexpectedly died due to complications from a thwarted assassination attempt that occurred in July. A day later, Chester A.

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