Top 10 Largest Office Buildings
in King County
| Office building | Address | Sqft | Year built |
|---|---|---|---|
| Microsoft Redmond Main Campus | 16255 NE 36th Way, 98052 | 3,786,070 | 1982 |
| Microsoft World Headquarters - West Campus | 15291 NE 40th Street, 98052 | 2,525,860 | 1973 |
| Starbucks Center | 2401 Utah Avenue South, 98134 | 2,100,000 | 1992 |
| Columbia Center | 701 5th Avenue, 98104 | 1,527,101 | 1985 |
| Two Union Square | 601 Union St., 98101 | 1,176,378 | 1989 |
| Rufus 2.0 - Block 19 | 2101 7th Avenue, 98121 | 1,130,790 | 2016 |
| 1201 Third | 1201 3rd Avenue, 98101 | 1,128,575 | 1988 |
| Two Union Square | 601 Union Street, 98101 | 1,126,428 | 1989 |
| Rufus 2.0 - Block 14 | 2021 7th Avenue, 98121 | 1,090,000 | 2016 |
| Rufus 2.0 - Block 20 | 2100 7th Avenue, 98121 | 1,074,996 | 2019 |
Largest Office Properties Recently Completed
in King County
| Office building | Address | Sqft | Year built |
|---|---|---|---|
| Rufus 2.0 - Block 21 | 2200 7th Avenue, 98121 | 888,049 | 2020 |
| Qualtrics Tower | 1201 2nd Avenue, 98101 | 703,000 | 2020 |
| 333 Dexter Avenue | 333 Dexter Avenue North, 98109 | 635,000 | 2020 |
| Expedia Corporate Campus - Expansion - Phase II | 1111 Expedia Group Way, 98119 | 600,000 | 2020 |
| Third & Lenora | 2031 3rd Avenue, 98121 | 552,753 | 2020 |
| Amazon - Block 18 | 2205 7th Avenue, 98121 | 477,000 | 2020 |
| REI at The Spring District | 1209 124th Avenue NE, 98005 | 390,286 | 2020 |
| Summit III | 320 108th Avenue NE, 98004 | 372,000 | 2020 |
| The Spring District - Block 16 | 1288 123rd Avenue NE, 98005 | 342,467 | 2020 |
| Federal Reserve Building - 1015 2nd Avenue | 1015 2nd Avenue, 98104 | 233,034 | 2020 |
News
RREEF and Cadence Partners’ Turnpike Commerce Center is open for business. Transwestern to lead management and leasing for the brand new Miami office space, available for immediate occupancy.
Extensive renovation and redevelopment work at historic Tammany Hall is finally complete. Marketed as 44 Union Square, the property offers exceptionally located Manhattan office space for rent.
KBS closes third San Jose office sale in four months, marking strong demand on the office market, despite ongoing pandemic.