A federal judge in a revised order on Thursday blocked the Trump administration from doing construction work above-ground on the controversial proposed White House ballroom.

But Judge Richard Leon’s order allows the administration to continue below-ground construction, including work related to national security facilities.

Leon is also allowing above-ground construction “that is strictly necessary to cover, secure, and protect such national security facilities,” as long as that construction does not “lock in the above-ground size and scale of the ballroom,” according to his order in U.S. District Court in Washington, D.C.

The order comes five days after the federal Circuit Court of Appeals in D.C. told Leon to clarify a prior order of his that had enjoined the Trump administration from taking any action to build the planned $400 million, 90,000 square-foot ballroom on the former site of the White House’s East Wing, which was demolished last year to make way for the project.