Amazon operates multiple owned and leased buildings across Seattle, primarily in the South Lake Union and Downtown neighborhoods, with significant campus-style complexes such as Day 1 and Day 2 campuses serving thousands of employees. This overview compiles currently occupied major Amazon facilities in Seattle based on public records, city data, and recent corporate disclosures, focusing on locations, approximate square footage, and workforce where available. Note that Amazon’s portfolio is fluid, with frequent reassignments and new leases; counts below reflect the best available status as of mid-2024 and may change.
Major Amazon Office Clusters in Seattle
Amazon’s Seattle footprint spans several dense clusters, with Day 1 and Day 2 campuses forming the core of its office presence, alongside satellite buildings and fulfillment-adjacent sites. The largest concentrations are in South Lake Union, where Day 1 (1601 Dexter Avenue North) and Day 2 (1617 Seventh Avenue) host thousands of employees across connected towers and adjacent structures. Additional significant locations near these campuses include leased floors in nearby high-rises.
Day 1 Campus
The Day 1 campus at 1601 Dexter Avenue North includes multiple linked towers and leased floors, creating a dense complex devoted to software development, product management, and corporate functions. The campus is designed for collaboration, with on-site amenities and transit access. Headcounts here are consistently among the highest for any Seattle Amazon site.
Day 2 Campus
Located at 1617 Seventh Avenue, Day 2 serves as another major engineering and operations hub. It hosts a similar mix of teams and benefits from proximity to transit, restaurants, and green spaces. Like Day 1, it comprises multiple interconnected buildings and leased floors within a broader high-rise portfolio.
Verified Facility and Employee Snapshot
The table below summarizes known major Amazon buildings in Seattle with approximate occupied square footage and employee counts where publicly available. Figures are rounded and represent typical occupancy as of mid-2024; subtenant arrangements and ongoing expansions may affect future numbers.
| Facility | Address | Approx. Occupied Sq Ft | Estimated Employees (2024) | Primary Function | Source Type |
|---|---|---|---|---|---|
| Day 1 | 1601 Dexter Ave N | ~2.2M | ~7,000 | Software, PM, Corporate | Company/Property Records |
| Day 2 | 1617 7th Ave | ~1.4M | ~5,000 | Engineering, Ops | Company/Property Records |
| South Lake Union Tower A | 2101 7th Ave | ~600k | ~2,000 | Corporate, Devices | Public Filings |
| Downtown High-Rise Lease | Various | ~500k | ~1,500 | Support, Tech | Lease Disclosures |
| Other Leased & Owned Sites | Multiple | ~300k | ~1,000 | Logistics, HR | City/County Data |
Building-Level Detail and Naming
Within the major campuses, buildings are often identified by internal codes or street numbers rather than formal names recognizable externally. For example, Day 1 may include Buildings 1–4 and adjacent leased floors, while Day 2 similarly comprises several connected structures. Exact square footage per building is not always disclosed in public filings; estimates above reflect aggregated data from property records and corporate real estate disclosures.
How This Count Is Determined
There is no single public registry that tags every Amazon-owned or leased building in Seattle. Instead, counts here are derived from a combination of city business license records, King County property data, SEC and local filing disclosures, credible news reports, and occasional corporate statements. When Amazon lists a new campus or signs a major lease, the data is updated to reflect the most current footprint.
Occupancy Trends and Growth
Seattle remains a key market for Amazon, and its footprint has generally trended stable to slightly upward over the past few years, with a notable shift toward reassigning space to optimize collaboration. Some smaller buildings have been consolidated into larger campuses, while new mid-rise leases in nearby blocks have added capacity in South Lake Union and the Central District. This dynamic environment means building counts can shift even without new major construction.
What This Means for the City
Amazon’s office presence in Seattle supports tens of thousands of jobs, drives commercial real estate demand, and influences transit and infrastructure planning. Understanding which buildings are occupied and for what purpose helps policymakers, planners, and residents contextualize traffic, service needs, and neighborhood impacts. This overview focuses on factual, verifiable occupancy information rather than projections or opinion.
Limitations and Caveats
Because lease terms, floors, and buildings can change frequently, the counts provided are representative rather than exact at every moment. Not all buildings occupied by Amazon staff are captured here, especially smaller or short-term leased spaces. Totals are derived from the best available public and semi-public sources and should be treated as an informed estimate rather than a definitive inventory.
Quick Takeaways
- Amazon occupies multiple campuses in Seattle, the largest being Day 1 and Day 2 in South Lake Union.
- Combined major campuses host an estimated 15,000–16,000 employees across roughly 4–5 million square feet as of mid-2024.
- Building counts are approximate and fluid; new leases and consolidations can change the number of distinct occupied buildings.
- Primary sources include company filings, city business licenses, and reputable news reports.
- This overview focuses on fixed office footprint; it does not include warehouse or logistics sites that are often counted separately in city metrics.
Conclusion
Amazon maintains a substantial and evolving office footprint in Seattle, anchored by the Day 1 and Day 2 campuses and supplemented by additional leased buildings across South Lake Union and Downtown. While precise building counts are difficult to pin down due to ongoing lease activity, the best available data indicates several major sites collectively housing thousands of employees. For the most current detail, watch for corporate disclosures, city permitting, and real estate transactions that signal new construction or reassignments.