The Williamsburgh Savings Bank Tower, also known as One Hanson Place, is a skyscraper in the Fort Greene neighborhood of Brooklyn in New York City. Located at the northeast corner of Ashland Place and Hanson Place near Downtown Brooklyn, the tower is one of Brooklyn's architectural icons. The tower was designed by Halsey, McCormack and Helmer and constructed from 1927 to 1929 as the new headquarters for the Williamsburgh Savings Bank. Prior to 2009, One Hanson Place was the tallest building in Brooklyn at 41 stories and 512 feet (156 m) tall.
The main entrance is through a large arch on Hanson Place. At ground level, the building is clad with limestone above a granite dado; three arched windows on Ashland Place overlook the banking room. Above the sixth story, the building is faced in brick with terracotta decoration. A series of setbacks taper to a clock tower with faces measuring 27 feet (8.2 m) across, while the roof is a dome evocative of the bank's previous headquarters at 175 Broadway. Inside is an entrance vestibule and lobby with ornately decorated marble and metalwork. The banking room, measuring 128 by 72 feet (39 by 22 m) with a ceiling 63 feet (19 m) high, is arranged similarly to the parts of a church, with a nave, aisles, and chancel. There is also a lobby in the basement, leading to Atlantic Terminal and the Atlantic Avenue–Barclays Center station, and a mezzanine-level ladies' lounge, overlooking the banking room. The upper stories were originally rented out as offices.
The Williamsburgh Savings Bank had occupied three headquarters in Williamsburg, Brooklyn, in the 19th century. The bank's officers decided to construct a skyscraper near Downtown Brooklyn for its new headquarters in the mid-1920s. The bank occupied the lowest floors when the building opened on April 1, 1929. The remaining stories were rented as offices, and much of the building contained dentists' offices by the late 20th century. The New York City Landmarks Preservation Commission designated the tower's exterior as a city landmark in 1977 and similarly designated the interiors of the lobby and banking spaces in 1996. The Williamsburgh Savings Bank became part of HSBC Bank USA through several mergers, and HSBC sold the building in 2004. The building's upper stories were converted to luxury condominium apartments from 2005 to 2007, while the banking hall became an event space.