M Resort sets Dec. 1 opening for second hotel tower

Key points
- Second tower opens December 1, 2025
- Expansion nearly doubles capacity to 765 rooms
- New 15,000-square-foot Montese Ballroom added
- Meril by Emeril Lagasse coming to the property
- Penn Entertainment leads the $206 million project
Impact
- Opening Date
- December 1, 2025
- Capacity
- 765 total rooms and suites after expansion
- Meetings
- New 15,000-square-foot Montese Ballroom increases event space
- Dining
- Meril, a contemporary American concept by Emeril Lagasse, joins the lineup
M Resort Spa Casino in Henderson, just south of the Las Vegas Strip, will debut its second hotel tower on December 1, capping a $206 million expansion that nearly doubles the resort's capacity to 765 rooms and suites. The project also grows group capabilities with the new 15,000-square-foot Montese Ballroom. Penn Entertainment, which owns the property, framed the opening as part of a broader growth push in its portfolio, while confirming a new partnership with chef Emeril Lagasse to bring his Meril concept to the resort. For travelers, the expansion adds rooms, meetings space, and another marquee dining option.
M Resort expansion and amenities
Penn Entertainment announced the tower's December 1 opening following steady construction progress that finished ahead of schedule. The second tower adds 384 keys and positions the resort to handle larger leisure and convention demand in Henderson. On the meetings side, the Montese Ballroom adds 15,000 square feet for conferences and social events. Dining will expand with Meril, a contemporary American restaurant by Emeril Lagasse, marking the concept's second location after New Orleans.
Latest developments
Penn set the December 1 grand opening date in early September and reiterated that the expansion nearly doubles room inventory. Trade and meetings outlets subsequently confirmed the ballroom's size, timeline, and the addition of Meril, underscoring the resort's plan to attract more group business alongside increased leisure demand.
Analysis
For travelers who prefer staying off the Strip while keeping quick access to it, the M Resort's larger footprint means better availability during peak weekends and events. The added ballroom should draw more conferences and weddings, which can translate to shoulder-date value rates for leisure travelers. Culinary-minded guests get another strong option with Meril, a recognizable chef-driven brand that broadens the resort's dining mix. If you are planning a winter meeting or a holiday getaway, consider booking early around the December 1 opening to take advantage of launch promotions and new-room inventory before the calendar fills with convention blocks.
Final thoughts
The M Resort's $206 million expansion, capped by a second hotel tower opening on December 1, 2025, signals fresh capacity, stronger meetings capabilities, and a high-profile restaurant addition. For Southern Nevada travelers and planners, the M Resort second hotel tower opening brings more choice just south of the Strip.
Sources
- PENN Entertainment sets December 1 as grand opening date for second hotel tower at M Resort Las Vegas, Penn Entertainment
- M Resort near Las Vegas Strip to open a second hotel tower, Travel Weekly
- $206 million development at M Resort will open December 1, Meetings Today
- PENN Entertainment announces opening date for second hotel tower at M Resort, Lodging Magazine