The site of Billie Jean King vs. Bobby Riggs “Battle of the Sexes” tennis match in 1973, the famous Muhammad Ali vs. Cleveland Williams heavyweight fight in 1966, and George Strait’s final stadium concert may one day be home to the bright lights, table games, and the sounds of slot machines chiming non-stop.
The idea of a Houston casino inside the historic Astrodome has been getting attention lately, but the reality is far more complicated.
There's already talk of putting a casino in Dallas, so could Houston also be on the list?
What is the Houston Astrodome?
The Houston Astrodome—officially known as the NRG Astrodome and previously called the Harris County Domed Stadium and Reliant Astrodome—is one of the most iconic landmarks in Houston, Texas. It is widely known as the world’s first fully enclosed, air-conditioned sports stadium.
The Astrodome opened on April 9, 1965, and is located within NRG Park in southwest Houston, right next to NRG Stadium, home of the Houston Texans. It quickly earned the nickname “Eighth Wonder of the World,” a title promoted by its creator, Judge Roy Hofheinz.
The massive circular structure covers about 9.5 acres. It measures 710 feet across on the outside, with a clear span of 642 feet inside, and rises about 18 stories high, reaching just over 200 feet at its tallest point.
When it was built, the Astrodome cost around $35 million—equivalent to roughly $358 million today.
Beyond its size, the Astrodome changed the future of stadium design. It allowed fans to enjoy events without worrying about Houston’s intense heat, humidity, or rain. It also introduced several major innovations, including fully air-conditioned indoor sports, artificial turf (later known as AstroTurf), a large animated scoreboard, and the ability to host a wide range of events such as baseball, football, rodeos, concerts, and conventions.
It served as:
- Home of the Houston Astros (MLB) from 1965 to 1999.
- Home of the Houston Oilers (NFL) for many years.
- Host of the Houston Livestock Show and Rodeo.
- A major shelter for ~25,000+ Hurricane Katrina evacuees in 2005.
It also hosted All-Star Games, major concerts, religious events, and more.
Over the years, several redevelopment ideas have been proposed, including a 2013 bond measure that voters ultimately rejected. However, none of these plans have been fully carried out.
The Astrodome’s Real Future
The Houston Astrodome has been empty for years, but it is far from forgotten. A nonprofit group called the Astrodome Conservancy is leading a serious plan known as “Vision: Astrodome.”
Houston preservationists Phoebe Tudor, Minnette Boesel, and Judy Nyquist founded the Astrodome Conservancy in 2016, and the non-profit organization has played an active role in getting the venue designated as a protected State Antiquities Landmark through the Texas Historical Commission.
They're working with architects at Gensler, and they propose turning the space into a modern entertainment hub.
The plan includes:
- A flexible 12,000-seat arena for concerts, events, and community use
- Four surrounding buildings with restaurants, retail shops, and offices
- A hotel with about 300 rooms
- Improved connections to NRG Park
This project is designed to bring life back to the area while keeping the Astrodome’s history intact. The estimated cost is around $840 million, and a 2025 study suggested it could generate $1.5 billion in economic impact over 30 years.
However, funding remains a major challenge. Harris County leaders have made it clear that private investment would be necessary, and as of early 2026, no final decision has been made.
Where the “Houston Casino” Idea Comes From
The idea of a Houston casino at the Astrodome recently resurfaced during a political debate. Former Houston Mayor Annise Parker suggested the building could become the “world’s biggest casino” if Texas ever legalized gambling.
She even mentioned Tilman Fertitta, a Houston billionaire and owner of Golden Nugget casinos, as someone who could make it happen quickly.
But this suggestion is not part of any official proposal. It was more of a “what if” scenario than a real plan.
Why a Casino Isn’t Likely Right Now
The biggest reason a Houston Astrodome casino isn’t moving forward is simple: it’s illegal in Texas.
Texas has some of the strictest gambling laws in the country. Full-scale casinos with slot machines and table games are not allowed. To change that, lawmakers would need to:
- Pass a constitutional amendment with a two-thirds vote in both chambers
- Get approval from Texas voters in a statewide election
So far, attempts to expand gambling—including proposals for major resort casinos in cities like Houston—have failed. Strong political opposition remains, especially in the Texas Senate.
The next chance for change won’t come until the 2027 legislative session, and even then, success is uncertain.
The Role of Tilman Fertitta
Tilman Fertitta is often mentioned in conversations about a Houston casino because of his deep experience in hospitality and gaming. He owns Golden Nugget casinos and runs a massive restaurant and entertainment empire through Landry’s, Inc.
He also owns the Houston Rockets and has strong ties to the city’s business and political circles.
If Texas ever legalizes casino gambling, Fertitta would likely be a major player. But until the law changes, even someone with his resources cannot build a traditional casino in Houston.
What Happens Next?
For now, the Astrodome’s future is focused on redevelopment—not gambling. The mixed-use plan offers a realistic path forward that aligns with current laws and economic goals.
The idea of a Houston Astrodome casino may sound exciting, and it could become possible someday. But it would require major legal changes, political support, and voter approval.
Until then, the Astrodome is more likely to become a vibrant entertainment destination rather than a casino floor.
