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Seattle airport expansion features massive timber-clad "tree"

dezeen.com·Jul 3, 2026

The Miller Hull Partnership and Woods Bagot have completed a significant expansion of Concourse C at Seattle-Tacoma International Airport, featuring a timber-clad "tree" structure that serves as a central gathering space. This project, part of the Upgrade SEA initiative, includes eco-friendly elements such as photovoltaic panels and aims for LEED Platinum certification, while enhancing the airport's overall capacity and passenger experience.

The Seattle-Tacoma International Airport expansion by The Miller Hull Partnership and Woods Bagot showcases the integration of sustainable design features, such as photovoltaic panels and electrochromic glass, aimed at optimizing energy efficiency and user comfort. This project not only highlights advancements in sustainable architecture but also sets a precedent by targeting LEED Platinum certification, making it a valuable case study for professionals interested in sustainable and innovative design solutions in large-scale infrastructure projects.

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