NEW YORK—The Dutch architect Rem Koolhaas has revealed the design for his first freestanding building in New York, a 24-story apartment tower overlooking Madison Square Park that cantilevers 30 feet over its neighbor, reports the New York Times. “We simply swerved into the next area,” Koolhaas said at a news conference. To make the gradual cantilevering possible, the 18 apartments spanning 24 floors have differing ceiling heights ranging from 11 to 30 feet.  

The $120 million tower was conceived after Slazer Enterprises, developers of the 60-story One Madison Park on 23rd Street, sold out almost all of that tower's condos before construction began. Seeing an opportunity, they proposed a second building that would share a lobby and luxury amenities with the first, and approached Creative Artists Agency, which represents Koolhaas, about installing a screening room. Eventually his charge was expanded from the screening room to designing the whole tower.

The building is expected to be completed in 2010.