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

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The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

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The Summerhouse on the Capitol Grounds surrounded by pink azalea flowers.
A few ideas to help you in planning a visit to Capitol Hill.

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An AOC worker mowing the grass on the grounds of the U.S. Capitol
The roles and responsibilities of the Architect of the Capitol cover an...

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The Flanagan clock with marble columns in the background
In a world where everyone carries a cell phone and some carry more than one,...

Contact

Contact Information

Contact Information

Architect of the Capitol
SB-15 US Capitol
202-228-1793 (main number)

Capitol Switchboard (Operator)
202-224-3121

U.S. House of Representatives
Find your member

U.S. Senate
Find your member

Capitol Visitor Center
202-226-8000

AOC Procurement
202-226-2557

AOC Employment
202.226.7000


Architect of the Capitol Service Centers (Assistance such as plumbing, electrical, lighting, locks, cleaning for employees on Capitol Hill):

Capitol Building
202-228-8800

House Office Buildings
202-225-4141

Senate Office Buildings
202-224-3141