Future phases include a 17-story hotel opening later this year and a 2,800-seat events center in early 2022.Ĭasino officials shared new details about the first phase of the expansion, including how the gaming floor will change, what the resort’s new high-limit room will look like and what kind of merchandise the casino’s new retail shops will offer.Īs part of the expansion, there will be two new floors of expanded gaming space, bringing the casino’s total to 270,000 square feet once complete. The $550 million expansion, which began construction in 2018, is the San Manuel Band of Mission Indians’ largest since the current casino facility opened in Highland in 2005. The first phase of San Manuel Casino’s expansion will open in July with a larger gaming floor, a new high limit room, a new restaurant and three new shops.