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C Concourse Expansion at Seattle-Tacoma International Airport

One of 10,000+ projects Taiyo tracks in Washington.

Source: The Construction Specifier

Project
Completed

The C Concourse Expansion at Seattle-Tacoma International Airport is Seattle's first all-electric terminal project, featuring a photovoltaic installation, public airside outdoor space, and designed to achieve LEED Platinum certification. The expansion increases the concourse size from 7,525 m2 to 21,274 m2, adding four new floors above the existing building to improve passenger circulation, access

Status
Closed
Sector
Airport, Water Supply and Storage, Solar, Commercial
Location
Seattle, Washington, United States of America
Updated
22 Jul 2026
Source
The Construction Specifier

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Project Information

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The project “C Concourse Expansion at Seattle-Tacoma International Airport” is an infrastructure initiative in the Airport sector, located in Seattle, Washington, United States. Taiyo aggregates data on it from The Construction Specifier.

Participants

Not available for this record.

Status

Original status

completed

Taiyo status

Closed

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The C Concourse Expansion at Seattle-Tacoma International Airport is Seattle's first all-electric terminal project, featuring a photovoltaic installation, public airside outdoor space, and designed to achieve LEED Platinum certification. The expansion increases the concourse size from 7,525 m2 to 21,274 m2, adding four new floors above the existing building to improve passenger circulation, accessibility, and comfort while supporting future growth. The project eliminates fossil fuels for heating and domestic hot water by using all-electric building systems and includes sustainable features such as electrochromic glazing, low-flow plumbing fixtures, and waste reduction programs.

Original sector

Built Environment

Location

Country

United States of America (USA)

State

Washington

City

Seattle

Source

Source

The Construction Specifier

URL

More Details

Record type

Project

Sector

Airport, Water Supply and Storage, Solar, Commercial

Article published date

2026-07-16

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