US Supreme Court temporarily permits White House ballroom construction

On August 21, 2026, the US Supreme Court issued an administrative stay, temporarily allowing the Trump administration to proceed with the construction of a new 90,000-square-foot ballroom at the White House East Wing. This decision effectively pauses a lower court order that would have halted the project, providing the justices with more time to review the administration’s urgent appeal.

The project, estimated to cost $400 million, has been the subject of a legal challenge initiated by the National Trust for Historic Preservation following the demolition of the original East Wing. The Justice Department maintains that the construction is a critical national security necessity, citing recent threats and assassination attempts against the president as justification for the development of the integrated, highly secure facility.

Chief Justice John Roberts, who handles emergency matters for the D.C. area, issued the stay without providing detailed legal reasoning. While the ruling does not indicate the final outcome of the litigation, it ensures that construction work can continue while the Supreme Court deliberates on whether to take up the full appeal or refer the matter to the entire bench for a definitive ruling.