56 Leonard Street

56 Leonard Street is an 821-foot-tall (250 m), 57-story skyscraper on Leonard Street in the neighborhood of Tribeca in Manhattan, New York City, United States. The building was designed by the Swiss architecture firm Herzog & de Meuron, which describes the building as "houses stacked in the sky." It is the tallest structure in Tribeca.

The building has 145 condominium residences priced between US$3.5 million and US$50 million. Residences range in size from 1,418 to 6,400 square feet (131.7 to 594.6 m2) and include 2 to 5 bedrooms all with private outdoor spaces.

As of May 2013, 70% of the building had sold. According to building developer Izak Senbahar, the building was 92% sold in seven months. In June 2013, a penthouse at 56 Leonard went into contract for US$47 million, making it the most expensive residential property ever sold below Midtown Manhattan. The building was completed in 2017, and is informally referred to as the "JengaBuilding".