<Table> <Tr> <Th_colspan="2"> Empire State Building </Th> </Tr> <Tr> <Td_colspan="2"> Seen from the air, 2012 </Td> </Tr> <Tr> <Th_colspan="2"> Record height </Th> </Tr> <Tr> <Td_colspan="2"> Tallest in the world from 1931 to 1970 </Td> </Tr> <Tr> <Th> Preceded by </Th> <Td> Chrysler Building </Td> </Tr> <Tr> <Th> Surpassed by </Th> <Td> World Trade Center (North Tower) </Td> </Tr> <Tr> <Th_colspan="2"> General information </Th> </Tr> <Tr> <Th> Status </Th> <Td> Complete </Td> </Tr> <Tr> <Th> Type </Th> <Td> Office building; observation deck </Td> </Tr> <Tr> <Th> Architectural style </Th> <Td> Art Deco </Td> </Tr> <Tr> <Th> Location </Th> <Td> 350 Fifth Avenue Manhattan, New York 10118 </Td> </Tr> <Tr> <Th> Construction started </Th> <Td> March 17, 1930; 88 years ago (1930 - 03 - 17) </Td> </Tr> <Tr> <Th> Completed </Th> <Td> April 11, 1931; 86 years ago (April 11, 1931) </Td> </Tr> <Tr> <Th> Opening </Th> <Td> May 1, 1931; 86 years ago (May 1, 1931) </Td> </Tr> <Tr> <Th> Cost </Th> <Td> $40,948,900 ($534 million in 2016 dollars) </Td> </Tr> <Tr> <Th> Owner </Th> <Td> Empire State Realty Trust </Td> </Tr> <Tr> <Th_colspan="2"> Height </Th> </Tr> <Tr> <Th> Architectural </Th> <Td> 1,250 ft (381.0 m) </Td> </Tr> <Tr> <Th> Tip </Th> <Td> 1,454 ft (443.2 m) </Td> </Tr> <Tr> <Th> Roof </Th> <Td> 1,250 ft (381.0 m) </Td> </Tr> <Tr> <Th> Top floor </Th> <Td> 1,224 ft (373.1 m) </Td> </Tr> <Tr> <Th> Observatory </Th> <Td> 1,224 ft (373.1 m) (102nd floor) 1,050 feet (320 m) (86th floor) </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th> Other dimensions </Th> <Td> 424 ft (129.2 m) east--west by 187 ft (57.0 m) north--south </Td> </Tr> <Tr> <Th_colspan="2"> Technical details </Th> </Tr> <Tr> <Th> Floor count </Th> <Td> 102 </Td> </Tr> <Tr> <Th> Floor area </Th> <Td> 2,248,355 sq ft (208,879 m) </Td> </Tr> <Tr> <Th> Lifts / elevators </Th> <Td> 73 </Td> </Tr> <Tr> <Th_colspan="2"> Design and construction </Th> </Tr> <Tr> <Th> Architect </Th> <Td> Shreve, Lamb and Harmon </Td> </Tr> <Tr> <Th> Developer </Th> <Td> Empire State Inc., including John J. Raskob and Al Smith </Td> </Tr> <Tr> <Th> Structural engineer </Th> <Td> Homer Gage Balcom </Td> </Tr> <Tr> <Th> Main contractor </Th> <Td> Starrett Brothers and Eken </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Empire State Building </Td> </Tr> <Tr> <Td_colspan="2"> U.S. National Register of Historic Places </Td> </Tr> <Tr> <Td_colspan="2"> U.S. National Historic Landmark </Td> </Tr> <Tr> <Td_colspan="2"> NYC Landmark </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> Location in New York City Empire State Building (New York City) Empire State Building (New York) Show map of Manhattan Show map of New York City Show map of New York Show all </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 40 ° 44 ′ 54.36" N 73 ° 59 ′ 08.36" W ﻿ / ﻿ 40.7484333 ° N 73.9856556 ° W ﻿ / 40.7484333; - 73.9856556 Coordinates: 40 ° 44 ′ 54.36" N 73 ° 59 ′ 08.36" W ﻿ / ﻿ 40.7484333 ° N 73.9856556 ° W ﻿ / 40.7484333; - 73.9856556 </Td> </Tr> <Tr> <Th> NRHP reference #</Th> <Td> 82001192 </Td> </Tr> <Tr> <Th_colspan="2"> Significant dates </Th> </Tr> <Tr> <Th> Added to NRHP </Th> <Td> November 17, 1982 </Td> </Tr> <Tr> <Th> Designated NHL </Th> <Td> June 24, 1986 </Td> </Tr> <Tr> <Th> Designated NYCL </Th> <Td> May 19, 1981 </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th_colspan="2"> References </Th> </Tr> <Tr> <Td_colspan="2"> I. ^ Empire State Building at Emporis </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Empire State Building </Th> </Tr>

When was the the empire state building built
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