Graton Resort Casino Enters Two-Year Vertical Construction Phase

Federated Indians of Graton Rancheria have launched a two-year stretch of major vertical construction at Graton Resort Casino in Rohnert Park, California, as the next step in a $1 billion multi-year expansion plan that has already delivered several completed phases, and observers note the timing follows directly after the May 4, 2026 opening of the non-smoking wing.

Project leaders have outlined a new 240-room hotel tower that will feature an adults-only pool along with a large-format entertainment venue, while slot inventory is set to grow from its current level just over 3,000 machines toward a long-term target of 6,000, according to construction updates released in August 2026.

Timeline and Recent Milestones

The non-smoking wing that opened in early May 2026 marked the conclusion of the most recent horizontal expansion work, and now crews have shifted focus to vertical elements that will rise above the existing footprint, while the overall timeline calls for this intensive building period to last through 2028.

Earlier phases of the project have already added meeting space, additional dining outlets, and expanded parking infrastructure, so the current vertical push builds directly on those completed structures rather than starting from scratch.

Hotel Tower and Entertainment Additions

The 240-room tower will introduce a dedicated adults-only pool area designed for hotel guests, and architectural plans show the structure will connect to the main casino floor through multiple access points that maintain the resort's existing circulation patterns.

Alongside the tower, a large-format entertainment venue will provide space for concerts, shows, and special events, and project documents indicate the venue will be sized to accommodate regional touring acts that previously bypassed the North Bay market.

Gaming Expansion Targets

Current slot count stands just over 3,000 machines, and the long-term goal of reaching 6,000 slots will occur in stages that align with each new construction milestone, while tribal gaming officials have stated that floor layout adjustments will accompany each incremental increase to maintain player comfort.

Table game capacity is also expected to grow in proportion, although the published August 2026 update focuses primarily on slot expansion figures and the supporting infrastructure required to handle higher daily visitor volumes.

Ownership and Regulatory Context

The Federated Indians of Graton Rancheria own and operate the resort under a tribal-state compact that governs all gaming activity on the property, and state regulatory filings show the expansion remains fully consistent with existing compact terms without requiring new legislative approval.

Local economic reports from Sonoma County note that the resort already ranks among the region's largest private employers, and the current construction phase is projected to sustain hundreds of additional jobs through the two-year vertical build period.

Looking Ahead

Once the hotel tower and entertainment venue reach completion, Graton Resort Casino will offer a broader mix of overnight stays, live performances, and gaming options that align with the tribe's stated goal of strengthening hospitality and entertainment services for both local residents and out-of-area visitors, and August 2026 marks the official start of this latest construction window.