F5 Tower

6th tallest finished building in Seattle

F5 Tower is a mixed-use building in Seattle, with 41 floors, finished in 2017. It stands 197 m (646 ft) tall, which makes it the 6th tallest finished building in Seattle.

Height

197 m · 646 ft

Rank in Seattle

6th of 25 listed

Floors

41

Completed

2017

Use

Mixed-use

City

Seattle, USA

Next to it in the ranking

• 4th · Two Union Square230 m · 740 ft · 1989
• 5th · Seattle Municipal Tower220 m · 722 ft · 1990
• 7th · Safeco Plaza190 m · 630 ft · 1969
• 8th · U.S. Bank Center185 m · 606 ft · 1989

See all of Seattle's tallest buildings

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Heights, floors and years for finished buildings follow published figures, cross-checked with Wikipedia's list of tallest buildings in Seattle. Last checked 2 Nov 2026.