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

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.

Best Photo Spot

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

Access & Hours

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

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.

Time Needed

1–2 hours

Design & Structure

Space FrameDiagrid
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.

Materiality

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

Structural Innovation

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

See Together

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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.