Hanover Square is a square with a public park in the Financial District, Lower Manhattan, New York City. It is triangular in shape, bordered by Pearl Street, Stone Street (which is now pedestrian-only) and a street named Hanover Square. Most surrounding buildings are primarily commercial, although 3 Hanover Square, a former home to the New York Cotton Exchange, and 10 Hanover Square, a former office building, have been converted to residential use. The square was known by its current name as early as 1730, during the period of British colonialism. In 1714, it was named for the House of Hanover, when King George I ascended to the throne.