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600 Stewart St
Seattle, WA 98101 Denny Triangle

Rate Upon Request

Office For Lease  •  646+ SF

Property Details

  • Property Type Office
  • Year Built 1969
  • Total Building Size 217,180 SF
  • Tenancy Multiple
  • Building Class B
  • Zoning DOC2 500/3
100 Transit Score
100 Walk Score

26 Spaces Available

Name Space Use Size Rent Details
2nd Floor Ste 200 Office 6,946 SF Rate Upon Request
  • Date available: Feb 2026
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
  • In Contiguous block: 8,009 SF
2nd Floor Ste 205 Office 1,582 SF Rate Upon Request 
• At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
2nd Floor Ste 220 Office 1,063 SF Rate Upon Request
  • Date available: Feb 2026
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
  • In Contiguous block: 8,009 SF
5th Floor Ste 500 Office 3,420 SF Rate Upon Request 
Virtual Tour: https://my.matterport.com/show/?m=gBw1VgvqGii

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 11,651 SF
5th Floor Ste 501 Office 8,231 SF Rate Upon Request 
• At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 11,651 SF
6th Floor Ste 603 Office 1,602 SF Rate Upon Request 
At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
6th Floor Ste 618 Office 1,712 SF Rate Upon Request 
Mix of open workspace and 4 private offices, conference room and kitchen.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Built out as: Standard Office
  • Space Type: Relet
6th Floor Ste 620 Office 945 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
7th Floor Ste 700 Office 8,319 SF Rate Upon Request 
Virtual tour: https://my.matterport.com/show/?m=e2RaPHCJXvC
City and Space Needle views
4 private offices, 2 conference rooms, 3 collab areas

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Space Type: Relet
  • In Contiguous block: 11,651 SF
7th Floor Ste 720 Office 2,336 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 11,651 SF
7th Floor Ste 724 Office 996 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 11,651 SF
8th Floor Ste 803 Office 2,280 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
8th Floor Ste 824 Office 3,459 SF Rate Upon Request 
Four exterior private offices with water view, large conference room and kitchen.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Space Type: Relet
10th Floor Ste 1000 Office 11,651 SF Rate Upon Request
  • Date available: May 2026
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
12nd Floor Ste 1220 Office 3,895 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
12nd Floor Ste 1228 Office 2,031 SF Rate Upon Request 
At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Built out as: Standard Office
  • Space Type: Relet
13rd Floor Ste 1350 Office 8,613 SF Rate Upon Request
  • Date available: 30 Days
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
15th Floor Ste 1505 Office 2,377 SF Rate Upon Request
  • Date available: Feb 2026
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
16th Floor Ste 1605 Office 2,154 SF Rate Upon Request 
At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
16th Floor Ste 1610 Office 1,973 SF Rate Upon Request
  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Space Type: Relet
18th Floor Ste 1800 Office 3,853 SF Rate Upon Request 
Full floor available with Suite 1801.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF
18th Floor Ste 1801 Office 7,798 SF Rate Upon Request 
Mix of private offices, open workspace, conference room, and kitchen/break room. Furniture available.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF
19th Floor Ste 1900 Office 6,128 SF Rate Upon Request 
At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF
19th Floor Ste 1903 Office 646 SF Rate Upon Request 
At the dynamic intersection between South Lake Union
and Central Business District
• Located in a unique congruence of Seattle’s retail hub,
business district, residential dwellings and technology
center

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF
19th Floor Ste 1908 Office 1,295 SF Rate Upon Request 
Virtual Tour: https://my.matterport.com/show/?m=tSAqYTyS8p6
Three private offices and kitchen/work room.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Negotiable
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF
19th Floor Ste 1920 Office 2,994 SF Rate Upon Request 
• At the dynamic intersection between South Lake Union
and Central Business District

  • Date available: Now
  • Lease term: Negotiable
  • Service type: To Be Determined
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 22,714 SF

Description 

Seattle's most connected address - Plaza 600 is centrally located between Seattle’s downtown retail core and South Lake Union neighborhood, and sits at the intersection of
Stewart Street, 6th Avenue, and Westlake Avenue. Major employers in the area include Amazon HQ, Google, Nordstrom, Meta, and Apple.

Plaza 600 benefits from BGO’s global $83 billion asset management and Urban Renaissance Group’s local expertise. The owners’ recent loan extension to Q4 2028 and commitment to improvements show their long-term investment. This institutional-grade ownership provides a strong financial foundation and dedicated capital, positioning Plaza 600 for future success.

Highlights

Newly remodeled lobby, conference center, bike storage, lockers & showers
Views from every floor
On-site garage parking
Fitwel Viral Response Certified
100 perfect walk score
100 perfect transit score

Amenities

  • 24 Hour Access
  • Bus Line
  • Commuter Rail
  • Conferencing Facility
  • Courtyard
  • Restaurant
  • Security System
  • Energy Star Labeled
  • Storage Space
  • Bicycle Storage
  • Shower Facilities
  • Air Conditioning

Public Transportation

Commuter RailDriveWalkDistance
King Street (Seattle) Station (Sounder South Line - Central Puget Sound Regional Transit Authority Rail (Link Light Rail/Sounder)) 5 min - 1.4 mi
Transit/SubwayDriveWalkDistance
Westlake & 7th South (South Lake Union Streetcar - Seattle Streetcar) 0 min 2 min 0.1 mi
Westlake Hub (South Lake Union Streetcar - Seattle Streetcar) 0 min 2 min 0.1 mi
Westlake Center (Seattle Center Monorail - Seattle Monorail Services (Seattle Monorail)) 1 min 3 min 0.2 mi
AirportDriveWalkDistance
Seattle-Tacoma International 25 min - 14.8 mi
Seattle Paine Field International 34 min - 23.3 mi

Parking Details

Parking Available: Yes
Reserved: No
Type: Surface
Included in Rent: Yes
Cleita Harvey 206-607-1794 JLL
Cleita Harvey 206-607-1794 JLL