Space Needle observation deck
Cultural

Space Needle Century Project Renovation

Space Needle

|

Seattle, WA

HIGHLIGHTS
  • Major renovation of Seattle’s iconic Space Needle
  • World’s first revolving glass floor installation
  • Structural and seismic upgrades completed during operations
Project size

24K SF

Completion date

2018

Sustainability

LEED Gold Certified for Commercial Interiors

Challenge

Reimagining one of Seattle’s most recognizable landmarks required balancing preservation, modernization, and uninterrupted public access. The project introduced complex structural upgrades to a 1960s-era tower with decades of unknown existing conditions and evolving seismic requirements. Custom-designed systems, tight tolerances, and suspended construction staging added significant coordination challenges throughout delivery. At the same time, all work needed to be carefully phased around daily visitor operations and public visibility.

Solution

We led planning, design, and phased construction management for the renovation of the Space Needle’s observation levels and supporting infrastructure. Our team coordinated closely with designers, contractors, and stakeholders to integrate structural glass walls, new glazing systems, mechanical and electrical upgrades, and the revolving glass floor experience. Construction sequencing and operational planning were carefully managed to maintain public access throughout the project. Ongoing coordination with preservation and permitting agencies ensured alignment with the landmarked status of the structure.

Outcome & Impact

The Century Project transformed the visitor experience while preserving the identity of one of Seattle’s defining landmarks. New floor-to-ceiling glass, upgraded observation areas, and the revolving glass floor reconnected visitors to panoramic views and the original architectural vision. Structural and seismic improvements extended the long-term resilience of the tower for future generations. Our client received an internationally recognized modernization that elevated both the experience and legacy of the Space Needle.

Services Provided

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Project Sector

Cultural
Sector
Sector Icon

Cultural

Cultural institutions rely on thoughtful planning and disciplined execution to bring their visions to life. We guide projects from early strategy through opening day, helping institutions create spaces that inspire visitors, strengthen community connection, and deliver lasting cultural and civic value.

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Project Partners

Olson Kundig

Architect

Hoffman Construction

General Contractor

McVey Oakley

Restaurant Design

News

The Century Project featured In New Book

February 22, 2024

Expert Insights, News Articles
The Needle’s $100M rehab set for fall

June 13, 2017

News Articles, Project Milestones, Team Announcements
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