Vulcan Block 44, Amazon Headquarters | Seattle

Part of Vulcan’s largest and most active project – the redevelopment of the South Lake Union neighborhood – Block 44 adds a five- and six-story office building, totaling 380,700 square feet, to Amazon’s ongoing global headquarters expansion. The two buildings are connected by a glass canopy featuring a Spencer Finch art installation, which covers a public crossblock with water features, outdoor seating and landscaping. Phase VI also features 18,000 square feet of ground-level retail space.


Block 44 utilized a unique dewatering system to meet the challenge of excavation near the water table. The enterprising system not only removed water but also provided near- and long-term stability, creating a cost-effective sustainable solution for handling, disposal and recycling of water.



Developer: Vulcan, Inc.

Architect: ZGF; IA Interior Architects

Awards: 2015 AGC Build Washington Awards | Private Building $50M – $100M
2015 WACA Excellence in Concrete | Architectural/Decorative
2015 NWCB Outstanding Projects of the Year | Exterior Commercial

2015 ENR Northwest’s Best Projects | Office/Retail/Mixed Use

2016 WASLA Professional Awards | Merit Award in General Design [over $500,000]