Graton Resort and Casino Completes Billion-Dollar Expansion in Sonoma County
The expansion at Graton Resort and Casino in Rohnert Park opened on May 4, 2026, a Monday, and delivered a $1 billion investment that introduced a smoke-free wing along with several new attractions designed to broaden the property's appeal, while the development sits within Sonoma County and adds fresh options for visitors seeking updated gaming and dining experiences.
Construction wrapped up on schedule, and the new facilities began operations immediately, giving guests access to areas that had not previously existed on the site, and the project focused on modern amenities that include both entertainment and dining upgrades.
New Features Added During the Expansion
One standout element is the 28,000-square-foot AYA restaurant, which uses ingredients sourced from nearby farms to create its menu, and this space provides seating for a large number of diners while offering views that connect to the surrounding landscape, whereas the smoke-free wing gives players an environment free from tobacco smoke and maintains separate gaming areas that operate alongside the original sections of the casino floor.
An illuminated water feature also debuted as part of the project, and it serves as a central visual point near the entrance and main promenade, with lighting effects that run throughout the evening hours, while these additions together create a more varied layout that accommodates different preferences among guests who visit the property.
High-Profile Celebration Held Days Later
A red-carpet event took place on May 8, 2026, to mark the completed work, and the guest list included former professional baseball player Hunter Pence, rapper E-40, television host Mario Lopez, actress Carmen Electra, along with elected officials such as former San Francisco Mayor London Breed and California Lt. Gov. Eleni Kounalakis, while speeches and tours highlighted the scale of the investment and the new amenities now available to the public.
Local media coverage captured arrivals and interactions throughout the evening, and the gathering drew attention to how the expansion fits into the broader regional economy that includes tourism and hospitality sectors across Sonoma County.
Attendees moved between the new smoke-free wing and the AYA restaurant during the celebration, and many sampled dishes prepared with locally grown produce that reflects teh agricultural character of the surrounding area, while the water feature remained illuminated to showcase its nighttime appearance for those walking the promenade.
Context Within Sonoma County Gaming Landscape
Graton Resort and Casino has operated in Rohnert Park for several years prior to this project, and the $1 billion expansion represents the largest single investment the property has undertaken since opening, whereas nearby tribal gaming facilities in Northern California continue to evolve their own offerings in response to visitor demand and regulatory updates from state agencies.
State gaming oversight remains coordinated through the California Gambling Control Commission, which tracks facility changes and compliance across licensed locations, and the May 2026 opening aligns with a period of steady growth for Sonoma County tourism that draws visitors interested in both gaming and regional wine country attractions.
Conclusion
The completed expansion at Graton Resort and Casino now stands as a notable addition to the local hospitality scene, with the smoke-free wing, AYA restaurant, and illuminated water feature all operational since early May 2026, and the celebrity-attended celebration on May 8 served to introduce these changes to a wider audience while underscoring the continued development of gaming properties in the region.