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

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The Old Supreme Court Chamber is the first room constructed for the use of the nation's highest judiciary body and was used by the Court from 1810 until 1860. Built by Benjamin Henry Latrobe, it was a significant architectural achievement, for the size and structure of its vaulted, semicircular ceiling were virtually unprecedented in the United States.
The Old Supreme Court Chamber is the first room constructed for the use of the...

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A crowd of people visiting the Capitol during visitor hours
Please note: Many of these Capitol Hill buildings are working office buildings...

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Yellow flowers in front of the Capitol Building
The Architect of the Capitol annually publishes a wide variety of publications...

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Photo of Musa velutina.
On February 28 at 10:30 a.m., trace the 7000-year journey of the banana from...

AOC Congressional Testimony

AOC Congressional Testimony

Photo of a Capitol Power Plant chiller that's reaching the end of its life expectancy.

Fiscal Year 2016 Appropriations

With the support of Congress, the Architect of the Capitol (AOC) is a strong steward of the buildings and grounds that comprise Capitol Hill. The incredibly talented and skillful employees of the agency care for facilities that are decades and even centuries old — buildings that were constructed without the modern equipment and efficiencies we now take for granted.

There is much work to be done, but we believe that there is no greater mission than upholding the historic buildings entrusted to our care. The American people and future generations are counting on us to work together to invest the necessary resources to sustain the treasures of Capitol Hill.

The AOC's written statements by Stephen T. Ayers to:

  • Subcommittee on the Legislative Branch, Committee on Appropriations, United States Senate (Presented March 17, 2015).
  • Subcommittee on Legislative Branch, Committee on Appropriations, U.S. House of Representatives (Presented February 26, 2015).

Budget Testimony Photos: