Old Patent Office Building

Foster + Partners · Washington, D.C.

Old Patent Office Building
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A Greek Revival colossus that got a new glass-sky heart—proof that adaptive reuse can be both polite and radical.

U.S. National Historic Landmark building in Washington, D.C., United States.

Featured in Foster + Partners's definitive monograph, Norman Foster: A Life in Architecture.

Major PracticeDon't Miss
Coordinates
38.8978°, -77.0229°
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Visitor Guide

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Visitor Tip

Use it as an urban refuge: step in off the street, head straight to the courtyard, then decide which museum wing earns your time.

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Best Photo Spot

In the courtyard, shoot upward to capture the canopy geometry against the historic cornices; late afternoon for softer reflections.

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Access & Hours

Open to the public as part of the Smithsonian museums housed within; free admission during posted hours.

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Insider Note

The Foster-era courtyard roof is the hinge between eras: it doesn’t imitate history—it gives the building a new interior climate and social role.

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Time Needed

1–2 hours

Design & Structure

Space FrameDiagrid
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Computational Process

Landmark preservation paired with a contemporary long-span glazed intervention. The design process is largely coordination: structure, drainage, thermal movement, and preservation constraints.

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Materiality

Historic masonry + modern steel-and-glass roof—mass meets lightness in a single interior room.

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Structural Innovation

Spanning a large courtyard while landing loads delicately on historic fabric requires careful load transfer, movement joints, and deflection control.

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Frequently Asked Questions

Who designed Old Patent Office Building?+

Old Patent Office Building was designed by Foster + Partners. It is located in Washington, D.C., United States.

Where is Old Patent Office Building located?+

Old Patent Office Building is located in Washington, D.C., United States. Its coordinates are 38.8978°, -77.0229°.

Can I visit Old Patent Office Building?+

Old Patent Office Building is a real building in Washington, D.C. that can be viewed from the outside. Check local information for interior access and visiting hours. Use the Parametric Atlas walking tour feature to plan a route that includes this building.