So, you want to build a massive, $400 million ballroom at the White House? Apparently, you can—or at least, a judge isn't going to stop you for now. A U.S. district judge has given the green light to President Donald Trump's ambitious renovation plan, dismissing an attempt by preservationists to hit the pause button.

District Judge Richard Leon declined to grant a preliminary injunction on Thursday. The lawsuit was filed by the National Trust for Historic Preservation, which argued construction should be delayed until the White House secured congressional approval and complied with other federal regulations.

Judge Leon said he couldn't grant an injunction based on the National Trust's current arguments, but he did leave the door open. He indicated the group could amend its complaint to renew claims that Trump is overstepping his authority. It's a classic legal move: "Not this time, but try again with better paperwork."

Carol Quillen, President of the National Trust, expressed disappointment but noted she was gratified the organization was encouraged to amend its complaint. So, the fight isn't over; it's just moving to the next round.

Meanwhile, Trump hailed the decision, calling it "Great news for America, and our wonderful White House!" The president also updated that the construction is ahead of schedule and under budget. In the world of massive federal projects, being "under budget" is the kind of claim that makes accountants do a double-take.

White House Defends Renovation

The proposed ballroom is no small affair. At 90,000 square feet, planned for the site of the demolished East Wing, it would significantly expand the White House's entertaining space. The Trump administration argues the project aligns with long-standing presidential renovation precedents and advances the public interest.

In December, Trump shared some details, stating the ballroom would feature a "drone-free roof" and bulletproof glass. Funded by private donors, the project is being pitched as a high-security showpiece destined to host future inaugurations and state dinners. Because if you're going to build a ballroom at the most famous house in America, it might as well be bomb-proof.

Interestingly, this isn't a brand-new idea. A previous account from former Senior White House Advisor David Axelrod revealed that Trump had proposed the ballroom idea back in 2010 during the Obama administration. So, it's a plan over a decade in the making, finally getting its day in court—and, for now, its day to break ground.