Ed Emmett’s office announced today the Texas Historical Commission has designated the Houston Astrodome as a state antiquities landmark, paving the way for legal protections with its new status.

It was nominated by Ted Powell and Cynthia Neely, two Harris County residents, after it was listed on the National Register of Historical Places in Jan. 2014. The designation means Harris County must consult with and receive permission from the Texas Historical Commission before pursuing significant alternations.

"SAL designation does not mean that sites or buildings cannot be altered or destroyed, only that the land-owning agency, in this case, Harris County, must consult with the THC about such proposed actions through the permit process, and the THC will determine whether the work will be allowed," said Joe Stinebaker, director of communications for Emmett's office.

THC has approved all of the renovations to date, such as removing seats, removing concrete risers, moving or removing signs and any structural changes and will work with Harris County on future approvals. Construction on the renovations should begin in one to one and a half years, Stinebaker said.

Last fall, Harris County Commissioners Court approved a $105 million Astrodome renovation project, which involves raising the Astrodome’s floor 30 feet to ground level, providing 8 acres of open space for events such as the Houston Livestock Show and Rodeo. It also includes two levels of underground parking.

In September, Community Impact Newspaper reported the Astrodome renovation plan would need to be approved by the THC, which would advise the court if there is anything in the plan that will jeopardize the integrity of the building. THC works to preserve Texas’ architectural heritage.

"I greatly appreciate the Texas Historical Commission's actions today," Harris County Judge Ed Emmett said. "The unanimous decision just shows that, other than the Alamo, the Astrodome is one of the most historic places in Texas. We will certainly continue to work closely with the commission on our future plans for the Dome.”