Amazon in the Regrade, Blocks 14, 19, and 20
![](https://www.mka.com/wp-content/uploads/2023/06/Amazon_Cover-jpg.webp)
Team
Architect
NBBJ
Contractor
Sellen Construction Company
Stats
PROJECT TYPE
Office
COMPLETION
2019
PROJECT SIZE
5.2 million ft²
MKA ROLE
Structural Engineer
Seattle, WA
Amazon in the Regrade, Blocks 14, 19, and 20
Amazon’s downtown headquarters features three 37-story, 1.15-million-ft² Performance-Based Seismic Design office towers on separate blocks. The campus sits on a large podium base and includes interconnected low-rise office buildings, street-level retail, a 2,000-seat auditorium, and six levels of below-grade parking. The iconic centerpiece of the development is The Spheres. These three intersecting glass-and-steel structures total 65,000 ft² and enclose five freestanding, nature-inspired workspace levels that function as a gathering spot for Amazon’s employees. ![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N44_indesign-jpg.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N43_indesign-768x512.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N10_indesign-768x1201.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N31_indesign-768x1040.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N11_indesign-768x512.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N9_indesign-768x513.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N7_indesign-768x512.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N30_indesign-768x512.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N8_indesign-768x393.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N23_indesign-768x534.webp)
![Amazon in the Regrade, Blocks 14, 19, and 20](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N44_indesign-768x1393.webp)
![Exterior daylight view of Amazon in the Regrade’s public plaza with surrounding high-rise buildings](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N40_indesign-768x512.webp)
![Exterior twilight view of Amazon in the Regrade’s Spheres and surrounding high-rise buildings](https://www.mka.com/wp-content/uploads/2023/06/96990_00_N47_indesign-768x586.webp)
Amazon in the Regrade, Blocks 14, 19, and 20
Awards
2020 ACEC Engineering Excellence Award - Grand - American Council of Engineering Companies
2020 Gold Award, Structural Systems - Engineering Excellence Award - American Council of Engineering Companies - Washington Chapter