Office Space Available at 601 Union Street

Office space currently available at 601 Union Street adds up to a total of 328,725 square feet across 41 listing(s). The largest individual space listed offers 22,566 square feet. Property use types available for lease at this property include: retail and general office. Sublease opportunities at 601 Union Street include 8 space(s).

Learn More about 601 Union Street

601 Union Street is located in the Seattle market and pertains to the 98101 zip code. The property incorporates a total of 328,725 square feet of space. Within the same building, there are 5,440 square feet of Retail space. 601 Union Street features a parking ratio of 0.64 / 1,000 SF, offering a total of 720 parking spaces. 601 Union Street was built in 1989. Interested in researching more about this property? Access in-depth research on 601 Union Street, including ownership details, transaction history, property characteristics, taxes, mortgage data, violations and more by creating a free account and viewing the full property report.

Get to Know the Neighborhood

In the Seattle Central Business District neighborhood, where 601 Union Street is located, you can currently find 937 office space(s) for rent. In total, this amounts to 10,671,537 square feet of available office space for lease opportunities.

For Lease

Two Union Square

601 Union Street, Seattle, WA 98101

328,725

SF Available

Rental Details

Number of spaces 41
Total square feet available 328,725 SF
For Lease $27.50 - $34.00/SF/YR
Space Types Retail, General Office
Date Updated May 13, 2026

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Reach out to the broker for more info on lease terms and amenities

For Lease 41 Spaces Available

1332 6th Avenue 1st Floor

Space Type Retail
Lease Rate Contact for pricing
Total Space Available 5,440 SF
Floor 1
Divisible Space 5,440 - 5,440 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Thomas M. Newell

Washington Holdings

Tim Holt

Washington Holdings

601 Union Street 13th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 5,589 SF
Floor 13
Divisible Space 5,589 - 5,589 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 15th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 6,162 SF
Floor 15
Divisible Space 6,162 - 6,162 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 16th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 7,182 SF
Floor 16
Divisible Space 7,182 - 7,182 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 16th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,709 SF
Floor 16
Divisible Space 2,709 - 2,709 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 16th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 1,651 SF
Floor 16
Divisible Space 1,651 - 1,651 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 16th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 3,349 SF
Floor 16
Divisible Space 3,349 - 3,349 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 16th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,182 SF
Floor 16
Divisible Space 2,182 - 2,182 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 17th Floor

Space Type General Office
Lease Rate $28.00/SF/YR
Total Space Available 6,663 SF
Floor 17
Divisible Space 6,663 - 6,663 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

- large corporate lunch room & large training room with operable wall to create large open space
- 1 mother rooms, 1 quiet room
- Sublease term through November 2027 | Furniture/FF&E is available

Rob Nielsen

Jones Lang LaSalle

601 Union Street 18th Floor

Space Type General Office
Lease Rate $28.00/SF/YR
Total Space Available 8,532 SF
Floor 18
Divisible Space 8,532 - 8,532 SF
Available Date 30 Days
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

Open office space | internal connecting staircase to floor 19
Large storage rooms | server room | coffee/work rooms
2 private offices | 1 large and 3 small meeting rooms 20 desks
Sublease term through November 2027 Furniture/FF&E is available

Rob Nielsen

Jones Lang LaSalle

601 Union Street 19th Floor

Space Type General Office
Lease Rate $28.00/SF/YR
Total Space Available 20,553 SF
Floor 19
Divisible Space 10,000 - 20,553 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

- - Open office space | mail room internal connecting staircase to floors 20 & 18
  - 2 meeting rooms | 2 breakout spaces | 6 private offices | 121 desks | 12 touch-down desks
  - Large storage rooms | 1 quiet room | server room | coffee/ work rooms
  - Sublease term through November 2027 Furniture/FF&E is available

Rob Nielsen

Jones Lang LaSalle

601 Union Street 20th Floor

Space Type General Office
Lease Rate $28.00/SF/YR
Total Space Available 20,553 SF
Floor 20
Divisible Space 10,000 - 20,553 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

- - - Main reception area, internal connecting staircase to floors 19 & 21
    - 8 private offices | open office space | 131 desks 2 break-out spaces
    - 3 meeting rooms | server room coffee/work rooms
    - Sublease term through November 2027 Furniture/FF&E is available

Rob Nielsen

Jones Lang LaSalle

601 Union Street 21st Floor

Space Type General Office
Lease Rate $28.00/SF/YR
Total Space Available 20,553 SF
Floor 21
Divisible Space 10,000 - 20,553 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

- - - - Executive reception area, kitchen, boardroom, private restroom
      - 22 private offices internal staircase connecting to floor 20
      - Four conference rooms, open office space, server room and coffee / work rooms

Rob Nielsen

Jones Lang LaSalle

601 Union Street 24th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 1,234 SF
Floor 24
Divisible Space 1,234 - 1,234 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 27th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 1,028 SF
Floor 27
Divisible Space 1,028 - 1,028 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 27th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 1,345 SF
Floor 27
Divisible Space 1,345 - 1,345 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 27th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,373 SF
Floor 27
Divisible Space 2,373 - 2,373 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 30th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,042 SF
Floor 30
Divisible Space 2,042 - 2,042 SF
Available Date Immediate
Renewal Option Yes
Sublease No
Turnkey Yes

plug and play with furniture

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 35th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 7,569 SF
Floor 35
Divisible Space 7,569 - 7,569 SF
Available Date Mar 1, 2027
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 37th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,529 SF
Floor 37
Divisible Space 2,529 - 2,529 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 37th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 8,306 SF
Floor 37
Divisible Space 8,306 - 8,306 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure, plug and play with furniture

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 37th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,389 SF
Floor 37
Divisible Space 2,389 - 2,389 SF
Available Date Immediate
Renewal Option Yes
Sublease No
Turnkey Yes

plug and play with furniture

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 37th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 5,917 SF
Floor 37
Divisible Space 5,917 - 5,917 SF
Available Date Immediate
Renewal Option Yes
Sublease No
Turnkey Yes

elevator lobby exposure, plug and play with furniture

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 39th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 6,483 SF
Floor 39
Divisible Space 6,483 - 6,483 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 39th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 5,159 SF
Floor 39
Divisible Space 5,159 - 5,159 SF
Available Date Immediate
Renewal Option Yes
Sublease No
Turnkey Yes

plug and play with furniture

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 3rd Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,682 SF
Floor 3
Divisible Space 2,682 - 2,682 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 41st Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 21,916 SF
Floor 41
Divisible Space 21,916 - 21,916 SF
Available Date Immediate
Renewal Option Yes
Sublease No

full floor

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 43st Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 4,054 SF
Floor 43
Divisible Space 4,054 - 4,054 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 48th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 22,566 SF
Floor 48
Divisible Space 22,566 - 39,488 SF
Available Date Immediate
Renewal Option Yes
Sublease No

full floor

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 49th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 16,922 SF
Floor 49
Divisible Space 16,922 - 39,488 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 4th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 5,499 SF
Floor 4
Divisible Space 5,499 - 5,499 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 4th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 2,636 SF
Floor 4
Divisible Space 2,636 - 2,636 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 50th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 3,845 SF
Floor 50
Divisible Space 3,845 - 3,845 SF
Available Date Immediate
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 50th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 11,502 SF
Floor 50
Divisible Space 11,502 - 11,502 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 50th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 15,347 SF
Floor 50
Divisible Space 15,347 - 15,347 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 51st Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 3,831 SF
Floor 51
Divisible Space 3,831 - 3,831 SF
Available Date Aug 1, 2026
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 53rd Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 3,462 SF
Floor 53
Divisible Space 3,462 - 3,462 SF
Available Date Jul 1, 2026
Renewal Option Yes
Sublease No

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 5th Floor

Space Type General Office
Lease Rate Contact for pricing
Total Space Available 5,080 SF
Floor 5
Divisible Space 5,080 - 5,080 SF
Available Date Immediate
Renewal Option Yes
Sublease No

elevator lobby exposure

Tim Holt

Washington Holdings

Thomas M. Newell

Washington Holdings

601 Union Street 7th Floor

Space Type General Office
Lease Rate $34.00/SF/YR
Total Space Available 20,850 SF
Floor 7
Divisible Space 10,000 - 20,850 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Nov 30, 2027

• Mainly open plan with meeting rooms

• Large reception area, kitchen and breakout room

• 160 desks, 11 hoteling stations, 11 (2) person

offices

• 4 small + 2 medium + 1 large meeting rooms

Rob Nielsen

Jones Lang LaSalle

601 Union Street 8th Floor

Space Type General Office
Lease Rate $27.50/SF/YR
Total Space Available 14,041 SF
Floor 8
Divisible Space 4,634 - 35,590 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Apr 30, 2029

Clay Nielsen

Jones Lang LaSalle

601 Union Street 9th Floor

Space Type General Office
Lease Rate $27.50/SF/YR
Total Space Available 17,000 SF
Floor 9
Divisible Space 17,000 - 31,041 SF
Available Date Immediate
Renewal Option No
Sublease Yes
Sublease Expiry Apr 30, 2029

Clay Nielsen

Jones Lang LaSalle

Contacts

Tim Holt

Washington Holdings

Mark Barbieri

Washington Holdings

Thomas M. Newell

Washington Holdings

Building Details

For Lease $27.50 - $34.00/SF/YR
Property Type Office - General Office
Property Size 1,126,428 SF
Lot Size 2.06 Acre
Parking Spaces Avail. 720
Parking Ratio 0.64 / 1,000 SF
Property Tenancy Multi-Tenant
LEED Certified Platinum
Building Class A+
Year Built 1989
Date Updated May 13, 2026

Getting Around

Walk Score ®
Walker's Paradise (98)
Transit Score ®
Rider's Paradise (100)
Bike Score ®
Very Bikeable (76)

Location

City Seattle, WA
Neighborhood Seattle Central Business District
Zip Code 98101
Market Seattle

Map
Street

Points of Interest

Transportation

5th Avenue & Pine Street

0.19 miles

5th Avenue

0.22 miles

3rd Avenue & Pine Street

0.26 miles

Westlake Hub

0.29 miles

Westlake And 7th

0.40 miles

Pioneer Square Station

0.48 miles

Pioneer Square

0.52 miles

Broadway & Marion

0.56 miles

Westlake & 9th-Denny

0.59 miles

Seattle

0.63 miles

Fuel station

ChargePoint

0.31 miles

0.50 miles

Greenlots

0.59 miles

Blink

0.59 miles

EVgo

0.72 miles

Shell

0.77 miles

Electrify America

0.87 miles

7-Eleven

1.02 miles

Volta

1.48 miles

Charge Seattle

2.71 miles

Parking

6th Avenue Garage - Hilton Seattle Parking

0.07 miles

IBM Building Parking

0.11 miles

Decatur Building

0.15 miles

Olympic Garage

0.19 miles

Cobb Garage

0.20 miles

9th Avenue Garage

0.20 miles

Century Square Garage

0.21 miles

Impark

0.23 miles

Sorreano Parking Garage

0.26 miles

1201 Third Avenue Parking

0.26 miles

Car rental and maintenance

Hertz

0.14 miles

Tempus Detailing

0.19 miles

Budget

0.26 miles

Avis

0.26 miles

Mutual Detail

0.27 miles

Zipcars

0.29 miles

National

0.32 miles

SIXT

0.32 miles

Enterprise

0.32 miles

Zipcar

0.66 miles

Restaurants

Cortina

0.01 miles

World Fresh Asian Eatery

0.01 miles

Evergreens

0.04 miles

Fresh Table Cafe

0.04 miles

MOD Pizza

0.05 miles

Blue Water Taco Grill

0.06 miles

Sushi Kudasai

0.06 miles

Jimmy John's

0.06 miles

Wildfire Taqueria

0.06 miles

Redtrees

0.07 miles

Stores

Nordstrom

0.20 miles

Pacific Place

0.22 miles

Ross

0.22 miles

Westlake Center

0.25 miles

Target

0.30 miles

H Mart

0.35 miles

Metropolitan Deli + Cafe

0.45 miles

Whole Foods Market

0.55 miles

City Market

0.56 miles

QFC

0.60 miles

Safety

ZoomCare

0.05 miles

Downtown Seattle Medical Center

0.06 miles

Virginia Mason Hospital & Seattle Medical Center

0.24 miles

Walgreens

0.25 miles

Passport Health Downtown Seattle Travel Clinic

0.25 miles

Seattle Infectious Disease Clinic

0.25 miles

Optum Madison Center

0.27 miles

CVS Pharmacy

0.31 miles

Seattle Surgery Center

0.36 miles

Chesterfield Services

0.37 miles

601 Union Street Listing Summary

Office Space Available at 601 Union Street

Office space currently available at 601 Union Street adds up to a total of 328,725 square feet across 41 listing(s). The largest individual space listed offers 22,566 square feet. Property use types available for lease at this property include: retail and general office. Sublease opportunities at 601 Union Street include 8 space(s).
Learn More about 601 Union Street

601 Union Street is located in the Seattle market and pertains to the 98101 zip code. The property incorporates a total of 328,725 square feet of space. Within the same building, there are 5,440 square feet of Retail space. 601 Union Street features a parking ratio of 0.64 / 1,000 SF, offering a total of 720 parking spaces. 601 Union Street was built in 1989.

Interested in researching more about this property? Access in-depth research on 601 Union Street, including ownership details, transaction history, property characteristics, taxes, mortgage data, violations and more by creating a free account and viewing the full property report.
Get to Know the Neighborhood

In the Seattle Central Business District neighborhood, where 601 Union Street is located, you can currently find 937 office space(s) for rent. In total, this amounts to 10,671,537 square feet of available office space for lease opportunities.

Contact Two Union Square

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Two Union Square

601 Union Street, Seattle, WA 98101

Rental Details

For Lease 41 Spaces Available

1332 6th Avenue 1st Floor

601 Union Street 13th Floor

601 Union Street 15th Floor

601 Union Street 16th Floor

601 Union Street 16th Floor

601 Union Street 16th Floor

601 Union Street 16th Floor

601 Union Street 16th Floor

601 Union Street 17th Floor

601 Union Street 18th Floor

601 Union Street 19th Floor

601 Union Street 20th Floor

601 Union Street 21st Floor

601 Union Street 24th Floor

601 Union Street 27th Floor

601 Union Street 27th Floor

601 Union Street 27th Floor

601 Union Street 30th Floor

601 Union Street 35th Floor

601 Union Street 37th Floor

601 Union Street 37th Floor

601 Union Street 37th Floor

601 Union Street 37th Floor

601 Union Street 39th Floor

601 Union Street 39th Floor

601 Union Street 3rd Floor

601 Union Street 41st Floor

601 Union Street 43st Floor

601 Union Street 48th Floor

601 Union Street 49th Floor

601 Union Street 4th Floor

601 Union Street 4th Floor

601 Union Street 50th Floor

601 Union Street 50th Floor

601 Union Street 50th Floor

601 Union Street 51st Floor

601 Union Street 53rd Floor

601 Union Street 5th Floor

601 Union Street 7th Floor

601 Union Street 8th Floor

601 Union Street 9th Floor

Contacts

Building Details

Getting Around

Location

Points of Interest

601 Union Street Listing Summary

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601 Union Street

One Union Square

One Union Square

One Union Square

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