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Seattle Center’s legacy of providing residents and visitors access to world-class arts, education, and recreation opportunities in a central location began in 1962 with the Century 21 World’s Fair. The Seattle Center Century 21 Master Plan guides the ongoing redevelopment of the Seattle Center's 74-acre campus in response to the needs of a diverse and dynamic community. More information on the Century 21 Master Plan can be found at the bottom of the page.

As stewards of the campus, the Seattle Center department is actively working on major maintenance, capital improvements, and long-term planning projects, including:

Seattle Center is modernizing its campus-wide signage program. The new signs will improve wayfinding and communication, unify and declutter the aesthetic of the campus, and support Seattle Center’s continue success as a year-round destination for activities and events. Much of the new signage will be in place by the end of 2021 following extensive fiber and electrical upgrades.
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The DuPen Fountain is currently closed. The area has been reimagined, and the new design will feature the original sculptures by Everett DuPen plus an interactive splash pad-style water feature in the plaza, scheduled to reopen in summer of 2022. The NW Breezeway entrance at Republican Street and August Wilson Way has been upgraded with new paint, waterproofing, stairs and ramps. Additional structural reinforcements are being made to the breezeway to allow for expanded event infrastructure.
Watch Everett DuPen video

Armory Exterior Improvements

The Armory exterior is being restored to highlight the façade’s original architectural characteristics. The removal of awnings on the west side of the building and a fresh new paint job (as approved by the Landmarks and Preservation Board) have been completed, with new awnings and replacement of select doors coming soon.

Campus ADA Improvements

New ADA compliant hardware is being installed in the Armory, Fisher Pavilion, Exhibition Hall, the Vera Project, parking facilities, and Marion Oliver McCaw Hall.

Monorail Upgrades

Monorail work is being performed as part of ongoing improvements in conjunction with Climate Pledge Arena at Seattle Center. These include station electrical systems, train flooring replacement, train door hardware upgrades, and station upgrades.

Century 21 Master Plan Downloads

Campus Sponsors