This is a list of largest office buildings in the world by floor area.
| S.N | Building | City | Country | Floor Area | Height In (Ft) | Height In (Mtr.) | Floor | Year |
|---|---|---|---|---|---|---|---|---|
| 1. | Surat Diamond Bourse | Surat, Gujarat |  India | 660,000 | 268 | 81.9 | 15 | 2023 |
| 2. | The Pentagon | Arlington |  United States | 620,000 | 77 | 23.5 | 7 | 1943 |
| 3. | Chrysler World Headquarters and Technology Center | Auburn Hills, Michigan | United States | 490,000 | 249 | 76 | 15 | 1993 (technology center) 1996 (headquarters) |
| 4. | The Exchange 106 | Kuala Lumpur |  Malaysia | 453,835 | 1,462 | 445.5 | 95 | 2019 |
| 5. | Willis Tower | Chicago | United States | 416,000 | 1,451 | 442 | 108 | 1974 |
| 10. | Petronas Twin Towers | Kuala Lumpur | Malaysia | 395,000 | 1,483 | 451.9 | 88 | 1996 |
| 11. | CCTV Headquarters | Beijing |  China | 389,079 | 768 | 234 | 51 | 2012 |
| 12. | Ping An Finance Centre | Shenzhen | China | 385,918 | 1,965 | 599.1 | 115 | 2017 |
| 13. | Shanghai World Financial Center | Shanghai | China | 381,600 | 1,614 | 492 | 101 | 2008 |
| 14. | Roppongi Hills Mori Tower | Tokyo |  Japan | 380,105 | 781 | 238 | 54 | 2003 |
| 15. | Shanghai Tower | Shanghai | China | 380,000 | 2,073 | 632 | 128 | 2014 |
| 16. | Merchandise Mart | Chicago | United States | 372,000 | 340 | 100 | 25 | 1930 |
| 17. | ICICI Regional Hub Building | Hyderabad | India | 371,000 | 230 | 70 | 20 | 2011 |
| 18. | Long’ao Building | Jinan | China | 370,000 | 218 | 66 | 15 | 2007 |
| 19. | Palace of the Parliament | Bucharest |  Romania | 365,000 | 276 | 84 | 12 | 1997 |
| 20. | Cœur Défense | La Défense |  France | 350,000[8] | 591 | 180 | 39 | 2001 |
| 21. | Aon Center | Chicago | United States | 334,451 | 1,136 | 346 | 83 | 1973 |
| 22. | One World Trade Center | New York City | United States | 325,279 | 1,776 | 541.3 | 104 | 2014 |
| 23. | 55 Water Street | New York City | United States | 325,000 | 687 | 209 | 53 | 1972 |
| 24. | Burj Khalifa | Dubai |  United Arab Emirates | 309,473 | 2,722 | 828 | 160 | 2010 |
| 25. | Lotte World Tower | Seoul |  South Korea | 304,081 | 1,823 | 555 | 123 | 2016 |
| 26. | Taipei 101 | Taipei |  Taiwan | 294,258 | 1,671 | 508.6 | 101 | 2004 |
| 27. | MetLife Building | New York City | United States | 292,000 | 808 | 246 | 59 | 1963 |
| 28. | IBM Rochester | Rochester, Minnesota | United States | 290,000 | 3 | 1958 | ||
| 29. | Shun Hing Square | Shenzhen | China | 280,000 | 1,260 | 384 | 69 | 1996 |
| 30. | Brookfield Place | Toronto |  Canada | 276,110 | 856 | 261 | 53 | 1990 |
| 31. | International Commerce Centre | Hong Kong |  Hong Kong | 274,064 | 1,587 | 484 | 108 | 2010 |
| 32. | 111 Eighth Avenue | New York City | United States | 270,000 | 264 | 80 | 18 | 1932 |
| 33. | John Hancock Center | Chicago | United States | 260,126 | 1,128 | 344 | 100 | 1969 |
| 34. | Apple Park | Cupertino | United States | 260,000 | 49 | 15 | 4 | 2017 |
| 35. | First Canadian Place | Toronto | Canada | 250,849 | 978 | 298 | 72 | 1976 |
| 36. | Place du Portage III | Gatineau | Canada | 247,000 | 233.9 | 71.3 | 20 | 1978 |
| 37. | Nabemba Tower | Brazzaville |  Congo Republic | 242,167.5 | 348 | 106 | 30 | 1986 |
| 38. | 30 Hudson Yards | New York City | United States | 240,000 | 1,270 | 387 | 103 | 2019 |
| 39. | World Trade Center Mexico | Mexico City |  Mexico | 239,000 | 333 | 207 | 50 | 1994 |
| 40. | Parc1 Tower A | Seoul | South Korea | 222,989 | 1,056 | 322 | 69 | 2020 |
| 41. | KK100 | Shenzhen | China | 220,000 | 1,450 | 442 | 98 | 2011 |
| 42. | Petronas Tower 1 | Kuala Lumpur | Malaysia | 218,000 | 1,483 | 452 | 88 | 1998 |
| 43. | Petronas Tower 2 | Kuala Lumpur | Malaysia | 218,000 | 1,483 | 452 | 88 | 1998 |
| 44. | 28 Liberty Street | New York City | United States | 213,675 | 813 | 248 | 60 | 1961 |
| 45. | U.S. Steel Tower | Pittsburgh | United States | 210,000 | 841 | 256 | 64 | 1970 |
| 46. | Empire State Building | New York City | United States | 208,879 | 1,250 | 381 | 102 | 1931 |
| 47. | JPMorgan Chase Tower | Houston | United States | 208,382 | 1,002 | 305 | 75 | 1982 |
| 48. | CITIC Plaza | Guangzhou | China | 205,239 | 1,283 | 391 | 80 | 1997 |
| 49. | Chongqing World Trade Center | Chongqing | China | 204,400 | 929 | 283 | 60 | 2005 |
| 50. | Chase Tower | Chicago | United States | 200,000 | 850 | 259 | 60 | 1969 |
| 51. | The Summit at Danbury | Danbury, Connecticut | United States | 200,000 | 89 | 27 | 6 | 1982 |
| 52. | The Bow | Calgary, Alberta | Canada | 199,781 | 774 | 236 | 58 | 2013 |
| 53. | Wells Fargo Customer Information Center(CIC) | Charlotte, North Carolina | United States | 195,468 | 3 | 1995 | ||
| 54. | Bank of America Tower | New York City | United States | 195,095 | 1,200 | 366 | 54 | 2009 |
| 55. | 30 Rockefeller Plaza | New York City | United States | 195,095 | 850 | 259 | 69 | 1933 |
| 56. | Boeing Everett | Everett, Washington | United States | 185,806 | 84 | 25.6 | 6 | 1993 |
| 57. | Two International Finance Centre | Hong Kong | Hong Kong | 185,805 | 1,362 | 415 | 88 | 2003 |
| 58. | McCoy Center | Columbus, Ohio | United States | 185,800 | 64 | 19.5 | 4 | 1996 |
| 59. | 555 California Street | San Francisco | United States | 183,017 | 779 | 237 | 52 | 1969 |
| 60. | Bank of America Plaza | Dallas | United States | 171,300 | 921 | 281 | 72 | 1985 |
| 61. | Wells Fargo Plaza | Houston | United States | 170,362 | 992 | 302 | 71 | 1983 |
| 62. | Parc1 Tower B[9] | Seoul | South Korea | 170,316 | 840 | 256 | 53 | 2020 |
| 63. | Hexagone Balard | Paris | France | 165,000 | 2015 | |||
| 64. | Almas Tower | Dubai | United Arab Emirates | 160,000 | 1,191 | 363 | 68 | 2009 |
| 65. | Franklin Center | Chicago | United States | 158,000 | 1,007 | 307 | 60 | 1989 |
| 66. | 10 Hudson Yards | New York City | United States | 158,000 | 878 | 268 | 52 | 2016 |
| 67. | Boca Raton Innovation Campus (BRiC) | Boca Raton, Florida | United States | 157,935 | 45 | 14 | 3 | 1967 |
| 68. | Major General Emmett J. Bean Finance Center | Indianapolis | United States | 154,219 | 3 | 1953 | ||
| 69. | 4 Times Square | New York City | United States | 150,000 | 809 | 247 | 48 | 1999 |
| 70. | Telekom Tower | Kuala Lumpur | Malaysia | 150,000 | 1,017 | 310 | 55 | 2001 |
| 71. | Salesforce Tower | San Francisco | United States | 150,000 | 1,070 | 326 | 61 | 2018 |
| 72. | Scotia Plaza | Toronto | Canada | 149,000 | 902 | 275 | 68 | 1988 |
| 73. | Citigroup Center | New York City | United States | 146,683 | 915 | 279 | 59 | 1977 |
| 74. | Verizon Operations Headquarters | Basking Ridge, New Jersey | United States | 145,153 | 4 | 1975 | ||
| 75. | One Island East | Hong Kong | Hong Kong | 144,426 | 979 | 298 | 69 | 2008 |
| 76. | Key Tower | Cleveland, Ohio | United States | 144,000 | 947 | 289 | 57 | 1991 |
| 77. | New York Times Tower | New York City | United States | 143,000 | 1,046 | 319 | 52 | 2007 |
| 78. | Columbia Center | Seattle | United States | 142,900 | 937 | 285 | 76 | 1985 |
| 79. | Plaza 66 | Shanghai | China | 140,263 | 945 | 288 | 66 | 2001 |
| 80 | Harry S Truman Building(US Department of State HQ) | Washington, DC | United States | 140,000 | 100 | 30 | 8 | 1941; 1960 |
| 81. | Bank of China Tower | Hong Kong | Hong Kong | 135,000 | 1,205 | 367.4 | 72 | 1990 |
| 82. | US Bank Tower | Los Angeles | United States | 133,087 | 1,018 | 310 | 73 | 1989 |
| 83. | Central Plaza | Hong Kong | Hong Kong | 130,140 | 1,227 | 374 | 78 | 1992 |
| 84. | Bank of America Corporate Center | Charlotte, North Carolina | United States | 130,063 | 871 | 265 | 60 | 1992 |
| 85. | The Center | Hong Kong | Hong Kong | 130,032 | 1,135 | 346 | 73 | 1998 |
| 86. | Brookfield Place (Calgary) | Calgary, Alberta | Canada | 130,000 | 810 | 247 | 56 | 2017 |
| 87. | Shanghai Wheelock Square | Shanghai | China | 114,075 | 978 | 298 | 58 | 2009 |
| 88. | 311 South Wacker Drive | Chicago | United States | 130,000 | 961 | 293 | 65 | 1990 |
| 89. | Two Prudential Plaza | Chicago | United States | 130,000 | 995 | 303 | 64 | 1990 |
| 90. | Comcast Center | Philadelphia | United States | 130,000 | 973 | 297 | 57 | 2008 |
| 91. | Cadillac Place | Detroit | United States | 129,600 | 220 | 67 | 15 | 1922 |
| 92. | Bank of America Plaza | Atlanta | United States | 121,980 | 1,023 | 312 | 55 | 1992 |
| 93. | Palazzo della Farnesina | Rome |  Italy | 120,000 | 167 | 51 | 62 | 1959 |
| 94. | Place du Portage IV | Gatineau | Canada | 118,000 | 229.7 | 70 | 18 | 1979 |
| 95. | Cheung Kong Centre | Hong Kong | Hong Kong | 117,000 | 928 | 283 | 62 | 1999 |
| 96. | Aon Center | Los Angeles | United States | 116,128 | 858 | 262 | 62 | 1973 |
| 97. | One Liberty Place | Philadelphia | United States | 111,483 | 945 | 288 | 61 | 1987 |
| 98. | Richard Bolling Federal Building | Kansas City, Missouri | United States | 111,483 | 295 | 98.33 | 18 | 1965 |
| 99. | Truist Plaza | Atlanta | United States | 111,400 | 871 | 265 | 60 | 1992 |
| 100. | Chrysler Building | New York City | United States | 111,000 | 1,046 | 319 | 77 | 1930 |
| 101. | Minsheng Bank Building | Wuhan | China | 110,000 | 1,087 | 331 | 68 | 2007 |
| 102. | One Atlantic Center | Atlanta | United States | 100,000 | 820 | 250 | 50 | 1987 |
| 103. | Emirates Office Tower | Dubai | United Arab Emirates | 100,000 | 1,163 | 355 | 54 | 2000 |
| 104. | Salesforce Tower | Indianapolis | United States | 84,092 | 811 | 247 | 49 | 1990 |
| 105. | 70 Pine Street | New York City | United States | 80,360 | 952 | 290 | 66 | 1932 |
| 106. | Transamerica Pyramid | San Francisco | United States | 49,000 | 853 | 260 | 48 | 1972 |