Amazon Listed Half of Seaport Office for Sublease
The e-commerce giant is attempting to sublet significant space in its latest Boston office tower.
Updated on Oct. 7, 2026 in Commercial
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Amazon has placed over half of its second Seaport office building on the market for sublease. The move comes as local commercial real estate availability continues to climb.
Why it matters
The decision to list a majority of the 17-story property reflects changing corporate workspace needs in the Boston area. This surplus of space contributes to broader trends of underutilized office real estate in the city.
Amazon is listing more than 50 percent of its 17-story Seaport office tower for sublease. This property availability coincides with a 27.9 percent vacancy rate across the Boston Seaport office market.
The players
Amazon
Amazon is a global technology company that has significantly expanded its physical corporate footprint in major metropolitan hubs including Boston.
Hunneman
Hunneman is a commercial real estate services firm that tracks market data and property trends across the Greater Boston region.
The details
The listing was officially disclosed in a third-quarter market report published by the commercial real estate firm Hunneman. Amazon is currently seeking subtenants for a majority of its square footage within the tower.
Timeline
Hunneman released the market report in Q3 2026.
Culture Shift
This move highlights a broader shift toward flexible office utilization as major firms move away from long-term, full-building leases. As noted in the Hunneman third-quarter 2026 commercial market report, this transition follows a pattern of declining office density in professional districts.
The availability of this large-scale office space may put downward pressure on commercial rental prices for other companies seeking space in the Seaport. Residents and local businesses may also see shifts in daytime foot traffic as the building prepares for new subtenants.
The takeaway
Large-scale subleasing efforts signal that major employers are still recalibrating their spatial requirements in a post-pandemic economy. Boston workers should anticipate that large office towers will continue to undergo significant tenant turnovers as companies prioritize cost-efficiency.
Further reading
For more on the changing landscape of local workspaces, read our latest coverage on Commercial.
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