Early history Lenape use According to archaeological digs, the area around Roosevelt Island was settled by
Paleo-Indians up to 12,000 years ago. In particular, the area was the homeland of the Mareckawick, a group of
Lenape Native Americans, who called it . However, the island likely did not have any Lenape settlements because of the lack of freshwater. There is little evidence of Native American activities on the island from before the
Archaic period (which ended around 1000 BCE).
Dutch colonization There are disputes over who owned the island after the European colonization of
New Netherland in the 17th century. According to several sources, Dutch Governor
Wouter van Twiller was said to have purchased the island from the Lenape in 1637. A study from 1988 found that Van Twiller's deed referred to what is now
Randalls and Wards Islands further north, In any case, Roosevelt Island was known in early modern Dutch as
Varcken[s], or
Verckens Eylandt, By 1639, Jan Claessen Alteras was known to have farmed Hog Island. Reports indicate that Alteras had made improvements to the island by 1642, though the nature of the work is not known. New Netherland director-general
Peter Stuyvesant took over the island in 1642. Manning had a mansion near the island's southern tip, where he served rum punch to visitors. The island was then conveyed to Manning's stepdaughter Mary in 1676 Mary was married to Robert Blackwell, who became the island's new owner and namesake. By the mid-1780s, the island included two houses, orchards, a cider mill, and other farm structures. One source indicated that Bell never fulfilled the terms of the sale. on July 19, 1828. Ownership of the island remained unresolved for another 16 years while Bell's widow sued the city. Through the 19th century, the island housed several hospitals and a prison. The island's prison population already numbered in the hundreds by 1838, whereas there were only 24 staff members (including those not assigned to guard duties). The asylum, with two wings made of locally quarried
Fordham gneiss, at one point held 1,700 inmates, twice its designed capacity. A
workhouse was built on the island in 1852, The prison hospital was replaced with
City Hospital (later known as Charity Hospital), In 1877, the hospital opened a School of Nursing, the fourth such training institution in the nation. Late-19th-century editions of the ''Appleton's Dictionary of New York'' described Blackwell's Island's penitentiary as having a "feudal character". Conditions in some of the hospitals declined significantly enough that the island as a whole gained a poor reputation. The
Chapel of the Good Shepherd opened on the island in 1889. The next year, the city began sending
typhus patients to the island. During the decade, city officials found the almshouse and City Hospital dilapidated and overcrowded, and a grand jury declared the women's asylum a "disgrace" to New York City. The asylum's inmates were transferred to
Wards Island in the mid-1890s, A proposal to build a power plant on the island in 1895 was unsuccessful, and the city began planning to expand the island's prisons the next year. Work began on new structures for the City Hospital and the almshouse in early 1897, and eleven new almshouse buildings opened that October. There were also plans to add eight pavilions to the island's infants' hospital. The prison's hospital burned down in 1899. At the end of the century, the island housed 7,000 people across seven institutions. and it was also known as simply "The Island". At the time, the island contained a
poorhouse, the city jail, and several hospitals. although city officials opposed it. The following year, there was a proposal to turn the island over to the federal government and raze many of the existing structures; the city's controller was also against this plan. Other proposals for the island in the first decade of the 20th century included new tuberculosis (consumptive) hospitals, additional almshouses, an electric power plant, and general hospitals. A tuberculosis ward at Metropolitan Hospital opened on the island in 1902, followed by an expanded nurses' school the next year. By the mid-1900s, the
Louisville Courier-Journal called the island "the world's best guarded prison", and the
New-York Tribune described the island as unsanitary. The city's controller recommended the construction of a new hospital to alleviate the poor conditions. A proposal to convert the island into a park resurfaced in 1907. The island's prisoners manufactured goods for the city, such as beds, brushes, and clothes, and the
Russell Sage Foundation set up a short-lived pathology institute on the island in 1907. The
Queensboro Bridge, crossing Blackwell's Island, opened in 1909, but it did not provide direct access to the island until the late 1910s. and a Catholic chapel was developed on the island. City corrections commissioner
Katharine Davis announced plans to construct a prison hospital on the island in 1915; there was very little vacant land on the island by then. By the 1910s, twenty-five thousand prisoners passed through the island's jail annually, and Mayor
William Jay Gaynor proposed shutting the jail. There were also proposals to move the penitentiary to
Hart Island, freeing up Blackwell's Island for hospitals and charitable institutions. The city's deputy correction correctioner called the island's penitentiary "unfit for pigs" in a 1914 report criticizing the unsanitary and overcrowded conditions, and a
grand jury investigation the same year found that the jail was severely mismanaged. Blackwell's Island Penitentiary was negatively affecting the reputation of the island's other facilities, to the point where a renaming of the island was under discussion. The women's penitentiary underwent reforms during the mid-1910s, and some prisoners were sent off the island to other jails.
Bird S. Coler ordered that the island's buildings be refurbished after he became the city's public welfare commissioner in 1918.
1920s and 1930s In 1921, the city began using Blackwell's Penitentiary to detain women who were awaiting trial. The island's prison hospital was severely understaffed, and the prison was described as "a disgrace to the City of New York". That April, the
New York City Board of Aldermen renamed Blackwell's Island to Welfare Island. The aldermen hoped the new name would improve the island's reputation, The state's prison commission recommended converting the island to a park in 1924, and the city began planning to move Welfare Island's inmates to a new jail complex on
Rikers Island further north. By then, the Welfare Island penitentiary lacked plumbing, had rat infestations, and was susceptible to fire. The prison's hospital was so overcrowded that ill inmates had to be treated in their cells. Prison staff were poorly compensated, and the prison received little to no maintenance. A chapel was dedicated on the island in 1925, followed by a synagogue in 1926. The city government also expanded the island's Cancer Institute in the 1920s. The State Department of Correction described the island in the early 1930s as "absolutely unsuitable for the purpose for which it is now used". The Board of Estimate
rezoned the island in 1933 to allow redevelopment. At the time, officials were planning a children's hospital and nurses' dormitory on the island. Municipal prison commissioner
Austin MacCormick reformed the island's prison in 1934 following a series of uprisings. By then, the old almshouse (the City Home) was so overcrowded that patients were being housed in abandoned portions of the Lunatic Asylum. Welfare Island's jail was scheduled to be relocated, and city parks commissioner
Robert Moses proposed converting the jail site to a public park. A city committee instead recommended a plan by city hospital commissioner
S. S. Goldwater, who proposed expanding the island's hospital facilities. After the Rikers Island jail complex opened, workers demolished the Welfare Island jail, and all inmates had been relocated by February 1936. The city announced plans for a
chronic care hospital complex in 1936. When the Welfare Island Hospital for Chronic Diseases, later
Goldwater Memorial Hospital, opened in July 1939, the Central and Neurological Hospital closed. An eight-building camp also opened in 1939.
1940s to 1960s During the mid-1940s, plans were filed for a combined laundry, garage, and firehouse building; a hospital at Welfare Island's northern tip; a nurses' training school; and a chronic-disease ward at the Metropolitan Hospital. A girls' shelter on the island opened in late 1945. By the late 1940s, mayor
William O'Dwyer described conditions at some of the island's hospitals as "frightful", mainly because of their age. A chronic-care hospital and a laundry building were developed on Welfare Island during that era. and was completed the next year. Work on a 2,000-bed facility, later known as the
Bird S. Coler Hospital, also began in 1948. Further projects were proposed in the late 1940s, including the
Welfare Island Bridge to Queens, a laboratory for Goldwater Hospital, and two hospitals with a combined 1,500 beds. The bridge was intended to relieve traffic caused by the island's new hospitals, while the additional hospitals would serve the city's growing elderly population. During the early 1950s, the city planned a 1,500-bed hospital on the island and wished to convert the island's Cancer Institute into a tuberculosis hospital. After Coler Hospital opened in 1952, patients were relocated there from the City Home for Dependents. City Home was emptied out by 1953. The Welfare Island Bridge opened in May 1955, and a bus began serving the island. The
Metropolitan Hospital moved to mainland Manhattan later that year, while the City Hospital was replaced in 1957 by
Elmhurst Hospital Center in Queens. Several medical facilities on the island opened during the mid-1950s, including an elderly rehabilitation center at Goldwater Hospital, a polio treatment center at Goldwater, and a children's rehabilitation center at Coler Hospital. There were also proposals to establish a "fire college" and a women's jail on the island. Another medical facility for chronically ill and elderly patients opened on Welfare Island in 1958. By 1960, half of Welfare Island was abandoned, and the Goldwater and Bird S. Coler hospitals were the only remaining institutions there. The city government had been trying since 1957, without success, to obtain $1 million to demolish the abandoned buildings. using 90 abandoned buildings for training purposes. The
American Institute of Architects' New York chapter proposed that the island instead become a park, while yet another plan called for the island to become housing for
United Nations staff. Other plans included those for a college campus or a smaller-scale residential area. A
New York City Subway station on Welfare Island was announced in February 1965 as part of the new
63rd Street lines under the East River; the subway announcement spurred additional plans for the island's redevelopment. There were plans to rename Welfare Island because the public generally associated the name negatively with the island's hospitals, The city government ordered the demolition of six dilapidated buildings on the island in 1965. The city took over another 45 abandoned hospital buildings via
condemnation in June 1966, The New York state government proposed in December 1967 to convert most of the island into a public park, except for senior citizens' housing at the north end. The
United Nations International School considered developing a campus at the island's southern end, and the New York Board of Trade pushed to redevelop the island as a city park. Other plans included a mix of recreational facilities and low-density housing; an amusement park similar to
Tivoli Gardens in Copenhagen; an underground
nuclear power plant; and a "city of the future".
Johnson and Burgee plan In February 1968, mayor
John V. Lindsay named a committee to make recommendations for the island's development, at which point one newspaper called it "the most expensive wasteland in the world". The state government established the Welfare Island Development Corporation (WIDC; later the Roosevelt Island Development Corporation or RIDC) that April. Early the next year, the state government canceled plans for a state park encompassing Welfare Island, and Lindsay's committee recommended renaming the island and developing housing units and recreational facilities there. Land clearing began that April, and Lindsay asked the
New York State Urban Development Corporation (UDC) to help redevelop the island in May. The city and state governments formally presented their proposal for Welfare Island in October 1969. After the Board of Estimate approved the plan later that month, the UDC signed a 99-year lease with the city that December. The city could pay either two percent of the development cost or 40 percent of any profits. The UDC issued $250 million in bonds to help finance the project. The island was to become a
car-free area with apartments, stores, community centers, and a waterfront promenade. The apartments ranged in size from studios to four-bedroom units and were a mixture of rental and
cooperative units. There would be a hotel, public schools, stores, and office space, The first apartment buildings banned dogs, but this prohibition was not applied to buildings developed later. Additionally, the hospitals on the island still needed vehicular access, By the early 1970s, the families of Welfare Island's three chaplains were the only people living on the island, excluding hospital patients. Models of Johnson and Burgee's proposal were exhibited at the
Metropolitan Museum of Art in late 1970. The UDC modified some of Johnson and Burgee's designs after they were publicized; for example, it added more buildings on the waterfront. and they also questioned whether the project's $400 million construction budget could have been spent on other projects.
Redevelopment Renaming and development of Northtown in modern surroundings The first phase of the development, Northtown, was to accommodate about 2,100 families. but he resigned after just over a year. Work formally began in mid-1971, The UDC hired at least 17 architectural and engineering companies to design the structures, the UDC decided to build the residences as housing cooperatives after unsuccessfully looking for a private developer. UDC considered renaming the island to attract new residents; the Four Freedoms Foundation proposed renaming it for U.S. president
Franklin D. Roosevelt. The City Council approved the name change in July 1973, and Welfare Island was renamed Roosevelt Island on August 20, 1973. Officials began planning the
Franklin D. Roosevelt Four Freedoms Park as well; although the island had been renamed in anticipation of the park's construction, the project was delayed for the next several decades. By the middle of 1973, one building had
topped out, and the island had been expanded by using dirt from the
63rd Street Tunnel's construction. UDC head
Edward J. Logue and project manager Robert Litke convinced multiple developers to sign 40-year leases for buildings on the island. By the end of the year, an advisory group recommended that the state legislature halt all UDC financing for the unbuilt phases of the Roosevelt Island development, citing the state's financial shortfalls. At least one of the residential structures' builders had also gone bankrupt. Construction proceeded steadily through 1974, and renting began that October. In addition, the existing Blackwell House and Chapel of the Good Shepherd were renovated. especially given the UDC's financial troubles. and the
New York State Division of Housing and Community Renewal took over the UDC's residential developments, including Roosevelt Island. Following an
architectural design competition, the UDC hired four architecture firms to design the second phase of Northtown that year. Residents began moving into Roosevelt Island's first building in April 1975. Initially, there were no stores on the island, and residents had to pass through Queens to go anywhere else. Although people were not incentivized to move to Roosevelt Island because of the lack of public transportation, due to delays in the subway line's opening and the city's financial troubles. The
Roosevelt Island Tramway to Manhattan opened in May 1976, Rivercross, the only cooperative apartment building in Northtown, generally attracted upper-class families because of its high monthly fees, while the other buildings attracted middle-class residents. The FDNY training school moved to
Randalls Island in 1977, and the old Roosevelt Island campus was razed. and 5,500 residents by 1978. The UDC leased some land in late 1977 to the
Starrett Corporation, which planned to erect three additional buildings with a combined 1,000 apartments. Starrett and the UDC signed an agreement in June 1979, in which Starrett agreed to build the three buildings, collectively known as Northtown II, for $82 million. New York state comptroller
Edward V. Regan published a report in 1980, saying that the Roosevelt Island redevelopment suffered from severe cost overruns and was losing money. Starrett continued to modify its plans for Northtown II, and, by 1982, the New York state government planned to begin developing Northtown II. The opening of the subway, which would support the island's increasing population, had been repeatedly delayed, By then, the island had 5,000 residents and 1,800 hospital patients, but relatively few businesses. The UDC re-approved the Northtown II plan in July 1984, and RIOC approved it in 1986. The revised plans called for five buildings, containing a total of 1,100 apartments. Opponents of the Northtown II project wanted to maintain the island's character and expressed concerns about the lack of mass transit options; following a lawsuit to block Northtown II, a judge approved it in late 1986. Northtown II was 70 percent occupied by early 1990.
1990s developments The opening of the
Roosevelt Island subway station, in late 1989, allowed further development to proceed. Designed by Raquel Ramati Associates, it was to consist of 1,956 apartments, split evenly between market-rate and affordable apartments. but the project had been placed on hold by 1991 because RIOC had not been able to secure a developer. In part because of the lack of development, the island's population remained lower than expected, requiring it to be subsidized. By the mid-1990s, the island had 8,200 residents, less than half the 20,000 that the state government had originally envisioned, To attract visitors, RIOC developed several recreational facilities and parks and sought to restore the island's oldest buildings. RIOC also planned to remove about of land to make way for a seawall. The architect
Santiago Calatrava was hired to design a visitor center in the 1990s, but this was never built. RIOC proposed selling off the Southtown site in 1997, and the
Related Companies and Hudson Companies signed an agreement to develop Southtown. The plans for Southtown were subsequently redrawn; and state legislator
Pete Grannis also proposed legislation to allow the island to govern itself. A contractor was hired to build the first section of Southtown in May 1999, and
Memorial Sloan Kettering Cancer Center indicated that it would build a tower in Southtown to house its staff.
2000s to present By the
2000 United States census, Roosevelt Island had a population of 9,520. Some of the island's original buildings, which were part of the
Mitchell–Lama affordable housing program, were planned to be converted to market-rate housing during the time. The first two Southtown buildings were completed in 2002, and a proposal to redevelop the Octagon tower as an apartment building was announced that year. The largely inaccessible Southpoint Park was opened year-round in 2003, a year after Governor
George Pataki signed legislation designating several parks on the island. The island's first two condominium buildings, both in Southtown, and the Octagon were developed next. All three structures had been completed by 2007, increasing the island's population to around 12,000. Southtown's fifth and sixth buildings were completed by 2008. By the late 2000s, there were long waiting lists for residences on the island, Although the Roosevelt Island Residents Association expressed concerns that the new developments would cause
gentrification, the island largely retained its middle-class housing stock. Work commenced on Four Freedoms Park in 2009, along with a redesign of Southpoint Park. Southpoint Park reopened in 2011, and Four Freedoms Park was finished the next year. Related and Hudson renovated 33 storefronts, while RIOC waived food-truck permit fees to entice food vendors. The city government selected
Technion – Israel Institute of Technology and
Cornell University in late 2011 to develop the
Cornell Tech research center on the island; the proposal included three towers, a hotel, and a conference center. The campus replaced the outmoded Goldwater Memorial Hospital, which closed in 2013. Work on Cornell Tech itself began in 2015, Graduate students moved to the island after Cornell Tech opened. Meanwhile, the island's population had grown to 11,661 by the
2010 United States census. Some of the Mitchell–Lama apartments were converted to market-rate housing in the 2010s, while development of additional residential structures continued. The seventh Riverwalk building was finished in 2015, Firefighters Field was renovated with the development of the eighth Riverwalk building. To attract visitors, RIOC announced in 2018 that it would create an "art trail" around the island. RIOC began soliciting plans for a memorial to the journalist
Nellie Bly in 2019; it ultimately commissioned
The Girl Puzzle monument by
Amanda Matthews, which was dedicated in December 2021. There was an additional influx of residents during the
COVID-19 pandemic in New York City, particularly among those looking for open space. and topped out the next year. In March 2024, plans were announced for a "healing forest" at the southern end of the island. The last building in the Riverwalk development, Riverwalk Heights, was completed in 2024, adding 357 units to Roosevelt Island. In 2025, the RIOC extended its lease of Roosevelt Island to 2078. == Demographics ==