Hanover Square is a square with a public park in the Financial District of Lower Manhattan in New York City. It is triangular in shape, bordered by Pearl Street; Stone Street, which is pedestrian-only; and a street named Hanover Square, which continues north as William Street. Most surrounding buildings are primarily commercial.
The square's pocket park is maintained by the New York City Department of Parks, and has an area of 0.056 acres (0.023 ha) or 2,440 square feet (227 m2).
The square was named for the House of Hanover in 1714 when King George I ascended to the throne.
For many years, Hanover Square was the center of New York's commodity market, with the New York Cotton Exchange at 1 Hanover Square, on the square's southwest corner; the New York Cocoa Exchange, now the New York Board of Trade; and others nearby. The square was also known as "Printing House Square". The Great Fire of New York broke out here on December 16, 1835, decimating much of Lower Manhattan. 3 Hanover Square, a former home to the New York Cotton Exchange, and 10 Hanover Square, a former office building, were converted to residential use.
The elevated IRT Third Avenue Line had a station above the square from 1878 until 1950. Upon the removal of the elevated, a park at Hanover Square was dedicated in November 1951.
The Queen Elizabeth II Garden (originally the British Garden at Hanover Square) was opened in June 2008. A memorial park for Commonwealth realm citizens who died at the September 11 attacks was given its broader designation on September 11, 2011, after Queen Elizabeth II visited Hanover Square in July 2010.
The nearest New York City Subway stations are:
The fourth stage of the Second Avenue Subway is slated to extend subway service to Hanover Square.