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Ten Steps to Energy Savings and Sustainability for your Office
The Architect of the Capitol’s Legacy of Sustainability began with the setting...

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On this 45th anniversary of Earth Day, the AOC is proud to announce the...

Projects

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    Stone Preservation

    Watch our video on why stone preservation across Capitol Hill is a top priority.

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    Crumbling Down and Building Up

    Addressing the stone pandemic takes a team of historic preservationists, structural engineers and stonemasons, among others.

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    Masonry at the AOC

    The hands-on work caring for the stone founds across Capitol Hill falls to AOC masons.

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    Sandstone on Capitol Hill

    During the early years of Washington, D.C., sandstone was commonly used because could be found locally and was easy to…

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Stone Preservation on Capitol Hill