Demolition of the White House East Wing began Monday as President Donald Trump adds a $200 million, 90,000-square-foot ballroom.

Axar.az reports that CNN observed an excavator tearing down portions of the East Wing, and close-up video and images captured areas of the roof torn down and an excavator tearing through the interior.

Renderings released earlier by the White House showed that the ballroom, which the administration has said will be funded by Trump and other private donors, would be built over this area.

Press secretary Karoline Leavitt said over the summer that the “state ballroom” would occupy space housing the East Wing of the executive mansion, where first ladies have traditionally maintained offices.