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

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Senators sitting in two story Senate Chamber.
The Senate Chamber is a rectangular, two-story room located in the center of...

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A view of the Capitol Visitor Center lit up at night
The Office of Congressional Accessibility Services (OCAS) provides a variety...

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AOC Gardener at the U.S. Botanic Gardener handling some orchids
Information about working for the Architect of the Capitol:

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Bartholdi's Fountain
Take a walking tour of the U.S. Botanic Garden October 1 at 2 p.m., weather...

Sustainable by Design and Greenscaping

Sustainable by Design and Greenscaping

Bee on blooming forsythia on Capitol grounds.

The method in which we design, construct, manage, and maintain our facilities can have a major impact on environmental issues such as energy consumption, resource management, pollution, and environmental impact. Sustainable design and construction is a holistic approach to facility management that considers impacts on human health and well-being as well as the natural environment at every stage of the building life cycle.

The AOC has embraced the principles of sustainable design in the ongoing planning, building, operations, and maintenance of the facilities and grounds entrusted to our care. These practices include improving energy savings, water efficiency, carbon dioxide emissions reduction, improved indoor environmental quality, and stewardship of resources and sensitivity to their impacts.

In the maintenance of the Capitol Grounds and U.S. Botanic Garden, the AOC follows the practices of "greenscaping" that help reduce environmental risks while still preserving the beauty and health of outdoor spaces. This includes activities such as “grasscycling” (leaving grass clippings in place when mowing), using the least toxic method for weed and pest control (such as hand pulling), organic fertilizer, and carefully selected plantings that promote sustainable best practices.