Designed by Morphogenesis, Surat Diamond Bourse offers a substantial office floor space of 660,451.9 m2 across 9 towers and 15 floors.
2. The Pentagon
This iconic building was constructed between 1941 and 1943 and designed by architects George Bergstrom and David J Witmer. The Pentagon boasts an enormous office floor space of 600,000 m2.
3. Chrysler World Headquarters and Technology Center
Chrysler World Headquarters and Technology Center was built between 1993 and 1996, with architectural design by CRSS Inc. (Technology Center) and SmithGroup (HQ). It covers 500,000 m2.
4. SAS i-tower
The SAS i-tower is located in Hyderabad, India. Designed by the Meinhardt Group, this striking building features an office floor space of approximately 480,515.2 m2.
5. USAA Corporate Headquarters
Located in San Antonio, Texas, USA, the USAA Corporate Headquarters was completed in 1976. The building offers around 476,000 office space.
6. The Exchange 106
Completed in 2019, with 106 floors its design is credited to Mulia Group Architects, covering approximately 453,885 m2 of office space.
7. Willis Tower
Completed in 1973, it was designed by Bruce Graham and Fazlur Rahman Khan of Architects Skidmore, Owings & Merrill. The Willis Tower features a staggering office floor space of around 416,000 m2.
8. Petronas Twin Towers
Petronas Twin Towers in Kuala Lumpur, Malaysia, were built between 1993 and 1999. Designed by César Pelli, these towers provide a combined office floor space of approximately 395,000 m2.
9. CCTV Headquarters
CCTV Headquarters was built between 2004 and 2012 and designed by Rem Koolhaas, Ole Scheeren, Fernando Donis, and Cecil Balmond. This building encompasses about 389,079 m2 of office space.
10. Ping An Finance Centre
Designed by Kohn Pedersen Fox Associates, this skyscraper features an office floor space of 388,600 m2.