The Mark

The Mark is now the F5 Tower and is 660 ft tall and consists of 44 floors that stretch to be the 6 tallest building in the city of Seattle.

Brokers And Tenants
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Our Construction Company
Funded in 1988
The Mark Construction
Built in 2010

About The Mark

More than a soaring addition to the Seattle skyline. More than a new standard for Seattle office space. More than a world-class hotel and a historic events venue. And more than a vibrant hub of community. We're building on the Seattle story.

People living and working in Midtown
Businesses in the neighborhood
Restaurants, shops and attractions
Transit options within three blocks
Recent Works

Explore our Projects

The Mark Contractors

Over the years, there have been many Seattle contractors and service providers that have helped make The Mark (F5 Tower) what is is today.

PS Seattle Movers are the preferred mover for The Mark residents, Bellevue and Tacoma, WA.
Squeegeezy Window Cleaning in Seattle
Squeegeezy in Seattle and Bellevue keeps the windows crystal clear year round.
JRS Personal Injury Law is there for anyone needed a personal injury lawyer in Seattle.
Stay Updated

Latest Blog

Project Updates – April 2015

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April 13, 2017

Project Updates – April 2016

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April 13, 2017

Project Updates – April 2017

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April 13, 2017
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A words from our happy users

Our Clients Speak

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Lotte Hotel - lobby is on 16th floor! Adjoining Sanctuary is an historic gem. Don't balk at the price, it is worth it.

- Jane H

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I visited this building back in 2017 when they were putting the finishing touches on it. A newish, pretty structure that is a worthy addition to the Seattle skyline. Stop by if you haven't yet!.

- Josh E

Had an event at The Sanctuary and it was beautiful. Great staff, great venue! The Halo Bar is located in the balcony area. Stained glass windows were beautifully restored along with the rest of the venue. Had a reception prior to dinner in the balcony and set up formal dining in the ballroom. We had musicians for entertainment (pianist and saxophonist). Didn't need a sound system. No mics...just the the perfect acoustics of The Sanctuary. Very impressive.

- Lian W


We Provide

Unmatched Window Height
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Increased Light, Decreased Glare
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Premium on-site Amenities
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Distinctive Inside And Out
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Flexible Floor Plans
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Innovative Green Design
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Get in touch

If you have any questions or need help, please fill out the form below.We do our best to respond.

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