<Table> <Tr> <Th_colspan="2"> Headquarters of the United Nations </Th> </Tr> <Tr> <Td_colspan="2"> View from Roosevelt Island </Td> </Tr> <Tr> <Td_colspan="2"> Location within New York City Headquarters of the United Nations (New York City) Headquarters of the United Nations (New York) Show map of Manhattan Show map of New York City Show map of New York Show all </Td> </Tr> <Tr> <Th> Alternative names </Th> <Td> Headquarters of the United Nations Arabic: مقر الأمم المتحدة ‎ Chinese: 联合国 总部 大楼 French: Siège des Nations unies Russian: Штаб - квартира Организации Объединенных Наций Spanish: Sede de las Naciones Unidas </Td> </Tr> <Tr> <Th_colspan="2"> General information </Th> </Tr> <Tr> <Th> Architectural style </Th> <Td> International Style </Td> </Tr> <Tr> <Th> Location </Th> <Td> New York City (International territory) </Td> </Tr> <Tr> <Th> Address </Th> <Td> 760 United Nations Plaza, Manhattan, New York City </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 40 ° 44 ′ 58" N 73 ° 58 ′ 5" W ﻿ / ﻿ 40.74944 ° N 73.96806 ° W ﻿ / 40.74944; - 73.96806 Coordinates: 40 ° 44 ′ 58" N 73 ° 58 ′ 5" W ﻿ / ﻿ 40.74944 ° N 73.96806 ° W ﻿ / 40.74944; - 73.96806 </Td> </Tr> <Tr> <Th> Construction started </Th> <Td> September 14, 1948 (September 14, 1948) </Td> </Tr> <Tr> <Th> Completed </Th> <Td> October 9, 1952 (1952 - 10 - 09) </Td> </Tr> <Tr> <Th> Cost </Th> <Td> $65,000,000 (in adjusted inflation $599,010,025) </Td> </Tr> <Tr> <Th> Owner </Th> <Td> United Nations </Td> </Tr> <Tr> <Th> Height </Th> <Td> 155.3 meters (510 ft) </Td> </Tr> <Tr> <Th_colspan="2"> Technical details </Th> </Tr> <Tr> <Th> Floor count </Th> <Td> 39 </Td> </Tr> <Tr> <Th_colspan="2"> Design and construction </Th> </Tr> <Tr> <Th> Architect </Th> <Td> <Ul> <Li> Oscar Niemeyer </Li> <Li> Le Corbusier </Li> <Li> Harrison & Abramovitz </Li> </Ul> </Td> </Tr> <Tr> <Th> Main contractor </Th> <Td> Fuller, Turner, Slattery, and Walsh </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Headquarters of the United Nations </Th> </Tr>

Who owns the property the un sits on