Sycuan Casino in California has commenced construction on its $226m expansion.
This project covers expansion of the gaming floor and available player positions.
Once the expansion is completed, the firm will be able to provide several programme and amenity enhancements to the property.
The project includes expansion of the casino floor space to accommodate a total of 2,500 Class III machines, 300 Class II machines and 80 table games.
Further, a 12-story hotel tower will be built that will feature 300 guest rooms, including 50 suites.
Sycuan Casino general manager John Dinius said: "We are very excited to offer our clientele a number of new amenities.
"All of these non-gaming amenities have become important to not only offer a full-service resort experience for our guests, but also to stay competitive in this environment."
Sycuan Tribal Council chairman Cody Martinez said: "It is with great excitement and pride that we are making this investment.
"This is not only on behalf of the tribe, but on behalf of our team members and our guests. We are taking Sycuan to the next level."
This hotel will also feature a spa and fitness area that will include treatment rooms, steam and sauna and a variety of exercise equipment.
The pool and gardens area will have a resort style adult pool, including cabanas and open pool deck, besides a bar and grill, and a dedicated family pool.
The hotel will also feature 11,401ft2 ballroom with a concert seating capacity of 1,200 and a banquet seating capacity of 700.