Graton Resort Casino Advances Major Vertical Construction Phase in California Expansion

Graton Resort & Casino has entered a two-year stretch of intensive vertical construction as part of its larger $1 billion multi-year expansion plan, with crews focusing on a new 240-room hotel tower alongside other key additions that will reshape the property's layout and offerings over the coming years.

Scope of the Current Construction Phase

The project centers on several interconnected elements that include the hotel tower equipped with an adults-only pool deck and expanded suite options, a large-format entertainment venue designed for concerts and shows, and continued growth in gaming capacity that currently stands at just over 3,000 slots with a long-term target reaching up to 6,000 machines. Additional work covers a relocated poker room, dedicated high-limit gaming areas, and upgrades to the parking garage, all scheduled to unfold through 2026-2028.

According to the August 2026 construction update from 500 Nations, the shift into this vertical phase marks a visible acceleration after earlier groundwork stages, allowing the resort to build upward while integrating new amenities directly with existing structures. The non-smoking casino wing, which opened in May 2024, already provides one example of how phased improvements have progressed ahead of the current tower work.

Details on Hotel and Entertainment Additions

The 240-room hotel tower forms the centerpiece of the vertical build, incorporating an adults-only pool deck that will sit above ground level alongside larger suite configurations aimed at accommodating extended stays and premium guests. Construction crews have begun the structural framing for this component, with plans to connect it seamlessly to the main resort facilities through covered walkways and internal access points.

The large-format entertainment venue will occupy a separate section of the expanded footprint, sized to host concerts and theatrical shows with capacity that exceeds the resort's current performance spaces. Site preparation for this building has advanced in tandem with the hotel tower, allowing shared utility lines and loading areas to be installed during the same construction window.

Gaming Expansion and Facility Upgrades

Gaming growth remains a core objective, with slot counts set to increase gradually from the present level of just over 3,000 toward the long-term ceiling of 6,000 machines as new floor space becomes available. The relocated poker room and high-limit gaming zones will occupy redesigned areas within the existing casino footprint, freeing up space for the higher machine totals while improving traffic flow for players.

Parking garage upgrades form another active component of the 2026-2028 timeline, with structural reinforcements and additional levels underway to support the expected rise in daily visitors once the hotel and entertainment venue open. These improvements align with the overall $1 billion investment that spans multiple years and multiple phases beyond the current vertical construction push.

Timeline adn Ongoing Progress Through 2028

Work on the non-smoking wing that debuted in May 2024 established an early milestone, and the August 2026 update confirms that vertical elements have now taken precedence as horizontal site work nears completion. The two-year window for this phase extends through 2028, encompassing the hotel tower, entertainment venue, gaming expansions, and parking enhancements in coordinated stages rather than isolated projects.

Observers tracking the timeline note that the $1 billion commitment allows for flexibility in sequencing, so that gaming floor adjustments can occur alongside structural work without requiring full property shutdowns. This approach keeps revenue-generating areas operational while new sections rise alongside them.

Conclusion

The August 2026 construction update places Graton Resort & Casino firmly in the vertical phase of its $1 billion expansion, with the 240-room hotel tower, adults-only pool deck, expanded suites, large-format entertainment venue, slot growth toward 6,000 machines, relocated poker room, high-limit areas, and parking upgrades all advancing on the 2026-2028 schedule. The May 2024 opening of the non-smoking wing already demonstrated how earlier phases integrated into daily operations, and the current stage continues that pattern of measured, multi-element development across the California property.