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Trump White House ballroom and military complex project encounters legal challenges as estimated costs rise to $400 million

The project to replace the East Wing has faced a judicial halt and criticism over historic preservation and statutory approvals.

Updated Sep 1, 2026 · 12:18 UTC1 reports

The short version

  • President Donald Trump is overseeing the construction of a 90,000-square-foot ballroom and an underground military complex following the demolition of the White House East Wing.
  • The project's estimated cost has increased from an initial $200 million to $400 million, with funding sourced in part from private individual and corporate donors.
  • U.S. District Judge Richard Leon ordered a temporary halt to construction until the project secures congressional approval, following a lawsuit by the National Trust for Historic Preservation.
  • The Trump administration asserts that the project is necessary for national security and states that construction reached 65 percent completion as of August.

Key facts

  • The White House announced plans in July 2025 to construct a 90,000-square-foot ballroom complex on the site of the East Wing, funded by the president and private donors.[Business Insider]
  • The project's estimated cost rose from $200 million at its announcement to approximately $300 million in October 2025, and subsequently to $400 million.[Business Insider]
  • Demolition of the East Wing began in October 2025, prior to formal presentation of construction plans to the National Capital Planning Commission in January 2026.[Business Insider]
  • The National Trust for Historic Preservation filed a lawsuit in December 2025 alleging the project lacked required federal environmental reviews and congressional approval.[Business Insider]
  • U.S. District Judge Richard Leon ruled that construction must halt until the project receives approval from Congress.[Business Insider]
  • The administration stated that an underground military complex featuring drone-resistant infrastructure is being built beneath the ballroom.[Business Insider]

What remains uncertain

  • Whether the administration will secure the congressional approval mandated by the federal court injunction to resume work.[Business Insider]
  • The total final proportion of public taxpayer funds versus private donations used to complete the facility.[Business Insider]

Sources