Office Space for Rent in Seattle

UnCommon provides accommodating office space in Seattle for professionals seeking flexible rental terms on desks, offices, and meeting and event spaces.

Find Flexible Office Space in Seattle Designed for Modern Teams

Conveniently located near public transit and parking garages in the historic Pioneer Square neighborhood, UnCommon offers accessible office space in Seattle. Choose from daily and monthly coworking rental options with opportunities to scale.

Key Features in
Our Historic Seattle Building

4 Conference Rooms
4 Phone Booths
Bike Storage
Shower
Full Kitchen With Complementary Snacks, Filtered Water, Tea, and Coffee
On-Site Private Security
Flexible Meeting Spaces by the Hour
Professionally Managed
Secured Access
Restaurant + Retail onsite - Flagstick Pub and Good Bar

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Why Choose UnCommon for Your Next Office Space?

In addition to working amid historic architecture in the fully renovated Masin Block building, you’ll enjoy a fully furnished office space in Seattle, featuring secure Wi-Fi and on-site private security.

Private offices, dedicated desks, and flexible meeting spaces are designed to meet the professional needs of startups, small businesses, and independent workers.

Recently fully renovated, the Masin Block features upgraded building systems and ample power capacity, making it well suited for AI-driven operations and other high-performance computing needs.

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What Our Members Say

"The way this building was rebuilt showcases a perfect marriage of past and present. Architectural details from its original era have been thoughtfully preserved, while sleek modern elements bring new life into the space. It's a testament to respectful, inspired renovation."

Sarah - Member

"The blend of old and new vibes is evident in the way this building was rebuilt. Amazing building!"

Isaiah - Member

Office Space in Downtown Seattle

Centrally located in Pioneer Square

On-demand coworking spaces for various business sizes

Minutes from Link Station & secure parking garages

Learn More About Coworking in Seattle at UnCommon

Have questions? We have the answers you need!

Access hotdesks, dedicated desks, private offices, and meeting and event spaces when you choose UnCommon for versatile office space in Seattle.
Prospective members are encouraged to tour the office and learn about available amenities. Try working in the space for a day to get a feel for the environment and community.
Members enjoy 24/7 access to workspaces. UnCommon Masin Block offers desks, offices, phone booths, meeting rooms, lounge areas, and a full kitchen stocked with snacks and beverages. Fast, reliable Wi-Fi and round-the-clock security provide peace of mind. There are also restaurants onsite for easy food options, including Flagstick Pub and Good Bar.
Commuters and carpools can access nearby parking garages, while those who prefer bike or public transport can take advantage of on-site bike storage or proximity to train, light rail, and bus line stops. Just steps away, King Street Station and Union Station provide direct access to Link Light Rail, Sounder, and Amtrak services. Drivers benefit from proximity to Interstate 5, State Route 99, Interstate 90, and the Washington State Ferry Terminal.
When you need office space in Seattle for team or client meetings, book conference rooms by the hour or day to accommodate your group.
Event space is available for rental by the hour (minimum four hours). Bookings include on-site private security, janitorial services, access to a freight elevator, and both standard and ADA restrooms.
Flexible memberships with options for short- and long-term rentals allow for personalized use and easy scalability. Availability, rates, and monthly specials may vary.
Located in the heart of Pioneer Square, this vibrant neighborhood blends historic architecture with a strong creative pulse. Cafés, restaurants, and bars are all within walking distance, ideal for casual meetings or a change of scenery. Masin Block also offers seamless access to the waterfront, Lumen Field, and T-Mobile Park. The block offers outstanding connectivity, with a 100 Transit Score, 98 Walk Score, and 91 Bike Score, placing it among the most accessible locations in the area. You can also enjoy the Pioneer Square Art Walk, steps from your office door, on the first Thursday of every month.

Major Attractions
Lumen Field: 0.3 Miles
T-Mobile Park: 0.6 Miles
Waterfront: 0.7 Miles
Seattle Aquarium: 0.7 Miles
Yes. This space is located within a carefully restored historic building dating back to the early 1900s. Originally part of the area’s early commercial fabric, the structure retains its signature brick exterior and exposed timber details while being thoughtfully updated for modern use. The result is a workspace that honors its architectural roots while offering the functionality and design expected today.