Graton Resort & Casino Launches Vertical Construction Phase in Billion-Dollar Expansion Plan

Graton Resort & Casino has moved into a two-year stretch of major vertical construction that forms the centerpiece of its $1 billion multi-year expansion, with crews now focusing on rising structures rather than groundwork alone. The project includes a 240-room hotel tower complete with an adults-only pool deck and expanded suites, plus a large-format entertainment venue built to host concerts and shows, while gaming capacity continues to grow from its current level of just over 3,000 slots toward a long-term target of up to 6,000.

Construction updates released in August 2026 confirm that the vertical phase is now underway, shifting the timeline from foundation work to the visible rise of new buildings across the property. Observers note that this stage marks a clear progression in the overall development schedule, which stretches through 2028 and incorporates several distinct elements already in motion.

Hotel Tower and Amenities Take Shape

The 240-room hotel tower stands as one of the most visible components in the current phase, designed with an adults-only pool deck on upper levels and a collection of expanded suites that increase lodging options for visitors. Construction crews have begun the upward build after completing earlier site preparation, allowing the structure to gain height while interior planning for pool areas and suite layouts continues in parallel. Data from project timelines shows the tower will integrate with existing resort facilities, creating a seamless connection between new guest rooms and the broader property amenities.

Entertainment Venue and Gaming Expansion Advance

Alongside the hotel, a large-format entertainment venue is advancing through its own construction sequence to accommodate concerts and shows at scale. This space will add dedicated capacity for live performances, separate from gaming floors, and forms part of the broader strategy to diversify offerings on site. At the same time, gaming growth remains on track, with current slot machines numbering just over 3,000 and phased additions planned to reach the long-term target of up to 6,000 machines over subsequent years.

Additional work continues on a relocated poker room and dedicated high-limit gaming areas, both of which are scheduled within the 2026-2028 window. Parking garage upgrades are also underway, addressing increased visitor volume expected once the new tower and venue open. These elements move forward together, creating an interconnected build that balances guest services with operational growth.

Recent Milestones Set the Stage

The non-smoking casino wing, which opened in May 2024, already provides a distinct environment within the resort and serves as an early deliverable from the overall expansion effort. That addition demonstrated the property's ability to complete and activate new spaces while larger construction proceeds elsewhere on site. Project records indicate that lessons from the wing's rollout informed subsequent planning for the vertical phase now underway.

According to construction reports covering the period through August 2026, the shift to vertical work reflects steady adherence to the multi-year schedule without major delays reported to date. Those following the project can track further updates through official channels, including details available at the 500 Nations construction update page, which compiles timelines and progress summaries for the resort.

Timeline and Phased Delivery Through 2028

The two-year vertical construction window that began in 2026 is expected to produce the hotel tower and entertainment venue as primary outcomes, while gaming expansions and support infrastructure such as parking continue in coordinated stages. Completion targets extend to 2028, allowing time for finishing work, inspections, and integration of new areas with existing operations. Industry observers point out that this measured approach helps maintain service continuity at the resort throughout the build period.

Further gaming growth beyond the initial slot increases will depend on demand patterns and regulatory approvals, yet the long-term ceiling of 6,000 machines remains the stated goal. High-limit areas and the relocated poker room are positioned to open incrementally, aligning with the broader vertical construction milestones rather than as standalone projects.

Conclusion

Graton Resort & Casino's current vertical construction phase represents the next concrete step in a $1 billion expansion that already delivered the non-smoking wing in 2024 and now focuses on rising structures for lodging, entertainment, and gaming capacity. With the 240-room tower, adults-only pool deck, large-format venue, and supporting upgrades all advancing through 2028, the project continues to unfold according to published timelines. Those tracking California casino developments can follow these specific updates as they materialize over the coming years.