Could the “Eighth Wonder of the World” become the biggest casino in the world?
Since shuttering in 2008, the fate of the Houston Astrodome has long been the subject of debate. While NRG Park officials have contested in favor of looking forward, Houston at large has fought to preserve the iconic monument.
Over the years, proposals of what to do with the iconic structure have come and gone. Private agencies, Harris County officials, and conservationists have pitched everything from indoor parks to waterparks, an indoor rainforest, mixed-use hub, movie studio, and even a naval battle arena.
The latest proposal comes from former Houston Mayor and Harris County Judge hopeful, Alissa Parker. During a debate with Houston City Council member, Letiticia Plummer, the two discussed the future of the Astrodome. It was here that Parker suggested an opportunity for the private sector to save the Astrodome; that is, by turning it into a casino:

“I think the Astrodome needs to be preserved,” Parker said. “I do believe that there’s a private sector opportunity and frankly, if we had casino gambling in Texas, if you guys could get rid of (Lt. Gov.) Dan Patrick, we could solve this problem really quickly. Tilman Fertitta would put the world’s biggest casino in there in a heartbeat, and then we could save the Astrodome and not worry about it”.
Parker is correct to have suggested that the venue would be the largest casino in the world. Spanning one million square feet, the Astrodome would nearly double the WinStar World Casino in Oklahoma, sitting around 600,000 square feet.
As for Fertitta, while his company Fertitta Entertainment continues to expand — presently in discussions to purchase the Vegas-based Caesars Entertainment Inc. — he has not revealed any intention of converting the Astrodome into a casino.

All that said, the biggest roadblock to this proposal is the fact that gambling is illegal in Texas. Both Gov. Greg Abbott and Lt. Gov. Dan Patrick have been firmly against any attempts to expand commercial gambling in Texas. Legalizing casinos in the state would required a constitutional amendment.
Alternatively, Vision: Astrodome, a recent, high-profile preservation initiative is still ongoing. As of mid-2026, the $840 million redevelopment plan is actively seeking private investors. However, the proposal remains unapproved by Harris County.