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

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Layout of the Capitol Grounds drawn by Landscape Architect Frederick Law Olmsted in 1874.
Landscape Architect Frederick Law Olmsted designed the U.S. Capitol Grounds in...

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Screenshot of Google Maps image of United States Capitol and surrounding areas.
Located at the center of Washington, D.C., the U.S. Capitol Building and other...

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Photo of the East Front of the U.S. Capitol Building looking North to South.
AOC's annual Performance and Accountability Report (PAR) provides the results...

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Photo of US Capitol Building made of plant materials.
The U.S. Botanic Garden’s annual holiday exhibit is on display November 27...

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