Sales momentum appears to be building at downtown Miami’s Okan Tower.

In March, the developers saw $39 million in sales in just 30 days, according to an announcement yesterday.

The sales figures were released by in-house broker Fortune International Group, which called the monthly sales figure “incredible.”

Okan Tower is planned to rise 70 stories, or 902 feet, with a tulip-inspired design.

Groundbreaking is planned for June, the developers previously said.

The project is already in contract, with buyers required to place a deposit.