PARIS (AP) — French Open officials say they're moving ahead with plans to build a retractable roof over center court and add night sessions there, despite a court ruling last month that put the project on hold.

The tournament on Saturday unveiled details of the $440 million project, which also include a new 4,850-seat show court and redesigned outer courts.

The city and French Tennis Federation are appealing an April 1 decision by the Administrative Court of Paris, which blocked the plan and sided with local residents who complained it could harm a nearby botanical garden. A ruling on the appeal could be months away, but the city and federation recently reached a new agreement to proceed.

The federation plans to pay for all but $26 million of the costs.