A crystalline stack of programs wrapped in a faceted net—Koolhaas makes information feel like urban infrastructure.
Main branch library in downtown Seattle.
Featured in OMA's definitive monograph, S,M,L,XL.
Visitor Guide
Take the ‘Books Spiral’ all the way—don’t use the elevator if you can help it. The building’s intelligence is in continuous section.
From the west (5th Ave), late afternoon for the diamond façade to catch low sun; inside, shoot the red Level 4 escalators mid-day for color punch.
Free. Hours vary; some floors may close earlier. Tours and events are often available at no cost.
The structure and skin are essentially one system: that diamond lattice isn’t just pattern—it’s a seismic and architectural strategy.
1–2 hours
Design & Structure
Designed through diagramming and program ‘plates’ stacked and shifted, then rationalized into a continuous enclosure. Complex geometry required 3D coordination between steel, glazing, and interior routing.
Steel diagrid and glass: transparency and structural expression collapse into one language; interiors use bold color as wayfinding infrastructure.
The diagrid provides stiffness and redistributes seismic/wind forces while allowing large column-free interior zones and dramatic cantilevers.
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Frequently Asked Questions
Who designed Seattle Central Library?+
Seattle Central Library was designed by OMA and completed in 2004. It is located in Seattle, United States.
Where is Seattle Central Library located?+
Seattle Central Library is located in Seattle, United States. Its coordinates are 47.6061°, -122.3330°.
When was Seattle Central Library built?+
Seattle Central Library was completed in 2004. It was designed by OMA.
Can I visit Seattle Central Library?+
Seattle Central Library is a real building in Seattle 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.