WATCH LIVE: National Capital Planning Commission hearing examines Trump's ballroom plans

WASHINGTON (AP) — A federal panel reviewing President Donald Trump's plans to build a ballroom at the White House has set April 2 for a final vote on the project, the chairman said as the agency prepared to give additional consideration to the construction plans.

The commission is on recess until 1 p.m. Watch live in our video player above.

Will Scharf, chairman of the National Capital Planning Commission and a top aide to the Republican president, made the announcement Thursday at the start of the panel's March meeting.

READ MORE: An arts panel made up of Trump appointees approves his proposal for a massive White House ballroom

The panel will hear additional details about the project from the White House as well as its own staff, and had been expected to vote on Thursday.

But Scharf announced that the vote was switched to April to give every member of the public who wants to comment a chance to do so. More than 100 people had signed up to comment at Thursday's meeting, which was being conducted online as a result.

The panel has also been flooded with scores of written comments about Trump's plans to build a 90,000-square-foot (8,360-square-meter) addition where the East Wing of the White House once stood. Trump has said it will cost about $400 million and be paid for with private money. Trump had the East Wing demolished in October.

READ MORE: Preservationists sue Trump for ballroom project reviews and congressional approval

Scharf said the meeting was being conducted online to ease the public testimony portion, which he said was likely to extend into Friday given the number of people who had signed up to speak.

"They are taking time out of what I presume are busy schedules to join us," he said. "One way or the other, we are going to make sure that members of the public have the opportunity to be heard on this project."

Critics of the project have argued that Trump should not have demolished the East Wing until the National Capital Planning Commission and a separate panel, the U.S. Commission of Fine Arts, had reviewed and voted on his plans. The fine arts panel approved the project last month.

READ MORE: Who's paying for Trump's $300 million ballroom?

The National Trust for Historic Preservation, a private, nonprofit group, asked a federal judge to temporarily halt construction until the White House submitted the plans both to federal panels and to Congress for approval, and allowed the public to comment.

U.S. District Judge Richard Leon rejected the request last week, and the trust has said it plans to file an amended lawsuit.