Top 10 Largest Office building in The World

i) City - Surat, Gujarat, India ii) Floor area (m2) - 660,000 iii) Height (ft) - 268 iv) Height (m) - 81.9

Surat Diamond Bourse

i) City - Arlington, United States ii) Floor area (m2) - 620,000 iii) Height (ft) - 77 iv) Height (m) - 23.5

The Pentagon

i) City - Auburn Hills, United States ii) Floor area (m2) - 490,000 iii) Height (ft) - 249 iv) Height (m) - 76

FCA US LLC Headquarters

i) City - Kuala Lumpur, Malaysia ii) Floor area (m2) - 453,835 iii) Height (ft) - 1,462 iv) Height (m) - 445.5

The Exchange 106

i) City - Chicago, United States ii) Floor area (m2) - 416,000 iii) Height (ft) - 1,451 iv) Height (m) - 442

Willis Tower

i) City - Kuala Lumpur, Malaysia ii) Floor area (m2) - 395,000 iii) Height (ft) - 1,483 iv) Height (m) - 451.9

Petronas Twin Towers

i) City - Beijing, China ii) Floor area (m2) - 389,079 iii) Height (ft) -768 iv) Height (m) - 234

CCTV Headquarters

i) City - Shenzhen, China ii) Floor area (m2) - 385,918 iii) Height (ft) -1965 iv) Height (m) - 599.1

Ping An Finance Centre

i) City - Shanghai, China ii) Floor area (m2) - 381,600 iii) Height (ft) -1614 iv) Height (m) - 492

Shanghai World Financial Center

i) City - Tokyo, Japan ii) Floor area (m2) - 380,105 iii) Height (ft) -781 iv) Height (m) - 283

Roppongi Hills Mori Tower