When NBA Commissioner Adam Silver talks about what the league is looking for in an expansion city, the arena question is always near the top of the list. In Seattle, that question has already been answered.
Climate Pledge Arena, which opened in October 2021 on the site of the old KeyArena at Seattle Center, was designed with the NBA in mind from day one. The venue has already hosted three NBA exhibition games, has dedicated NBA locker rooms built into its infrastructure, and is operated by One Roof Sports and Entertainment — the same group bidding for the expansion franchise.
The Specs
Climate Pledge Arena seats approximately 17,100 for basketball — comfortably within the NBA's requirements. The arena features 32 luxury suites, 2,000 premium club seats, and a state-of-the-art center-hung scoreboard. The venue was built to LEED Platinum certification standards and operates as the world's first net-zero certified arena.
The Ownership Advantage
One Roof Sports and Entertainment's controlling stake in Climate Pledge Arena is the single most significant structural advantage in Seattle's expansion bid. Any competing ownership group — whether in Seattle or elsewhere — would need to either negotiate arena access with One Roof or propose an entirely new venue.
Building a new arena in Seattle, given land costs and construction timelines, would take a minimum of five to seven years and cost upwards of $2 billion. Combined with the $7 billion to $10 billion expansion fee, the total cost for a non-One Roof bidder could approach or exceed $12 billion.
The Statues Outside
Climate Pledge Arena is already home to two statues of Seattle sports legends: Lenny Wilkens, the Sonics' 1979 championship coach and Hall of Famer, and Sue Bird, the Storm's legendary guard and four-time WNBA champion. The statues are a physical statement of intent — this arena was built to honor Seattle's basketball legacy and to welcome it back.