Koi Nation’s Sonoma Casino Project Faces Major Legal Hurdle

September 29, 2025
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The Setback for Koi Nation’s Sonoma Casino Development

The Koi Nation of Northern California has encountered a significant obstacle in their plans to build a prominent casino in Sonoma County. A federal judge has revoked the 68-acre Shiloh parcels trust status, halting the tribes $600 million casino resort project indefinitely.

Legal Disputes Surrounding the Project

On September 22, Judge Rita F. Lin issued an order reinforcing her previous ruling that favored the Federated Indians of Graton Rancheria (FIGR), the operators of a casino near Rohnert Park. The judge stated that the U.S. Department of the Interior did not adequately consult with Graton Rancheria and other tribes regarding the cultural and historical importance of the land before placing it into trust for the Koi Nation back in 2022.

"FIGR has met its burden for the requested injunctive relief reversing the land-into-trust transaction."

Judge Rita F. Lin

This ruling is a major win for Graton Rancheria, which has consistently opposed the Koi Nations project. The Graton leadership claims that the Shiloh site lies on their ancestral lands and that the federal process unfairly bypassed their right to object by fast-tracking the trust approval without proper consultation.

Impact on Koi Nation’s Expansion Plans

The verdict is a devastating blow for the Koi Nation. The tribe acquired the land for $12.3 million in 2021 with intentions to develop a 400-room hotel, a gaming floor hosting over 2,700 slot machines and 100 table games, alongside an expansive entertainment and dining complex. This development was seen as vital to the tribes economic independence, expected to create jobs and draw visitors.

Challenges to Tribal Gaming Growth

Despite assurances that the casino would benefit the local economy, the project has encountered strong resistance. Residents of the Shiloh area have voiced worries about increased traffic, noise, and water consumption. Local government bodies, including Sonoma County supervisors, the Windsor Town Council, state and federal officials, and Governor Gavin Newsom, have publicly opposed the proposal.

The case may also highlight a broader shift in U.S. policy, as the current administration shows resistance to expanding tribal gaming. Secretary of the Interior Doug Burgum favors more restrictive measures, especially regarding land-into-trust procedures and off-reservation gaming, making expansions more difficult.

Graton Rancheria’s Position and Future Outlook

Graton Rancheria, which is currently undertaking a $1 billion expansion of its own casino resort, praised the decision as an affirmation of tribal sovereignty. Although the Koi Nation still owns the Shiloh land, using it for gaming is currently prohibited. The Koi Nation plans to appeal the court ruling, but the appeals process could take several years with uncertain prospects.