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  1. Office Space
  2. WA
  3. Seattle

Seaboard Building

For Lease 32,217 SF

1500-1506 4th Ave, Seattle, WA 98101

Built in 1907, the Seaboard Building stands as a testament to Seattle’s rich history. Designated a National Historic Landmark in 2002, the building features a beautiful terra cotta façade and a prime location overlooking Westlake Park.

Rental Details

  • Number of spaces 6
  • Total square feet available 32,217 SF
  • For Lease Price on request
  • Space Type General Office
  • Lease Type Full Service
  • Latest Update Sep 1, 2026
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6 Spaces Available

Space Name Space Type Lease Rate Total Space Floor Lease Type Expand
Suite 200 General Office $20.00/SF/YR 6,951 SF 2 Full Service

Suite 200

Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

6,951 SF

Floor

2

Divisible Space

6,951 - 6,951 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

200

Suite 400 General Office Negotiable 4,229 SF 4 Full Service

Suite 400

Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

4,229 SF

Floor

4

Divisible Space

4,229 - 4,229 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

400

Suite 450 General Office $20.00/SF/YR 3,086 SF 4 Full Service

Suite 450

Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

3,086 SF

Floor

4

Divisible Space

3,086 - 3,086 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

450

Suite 500 General Office $20.00/SF/YR 3,621 SF 5 Full Service

Suite 500

Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

3,621 SF

Floor

5

Divisible Space

3,621 - 3,621 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

500

Suite 510 General Office Negotiable 4,486 SF 5 Full Service

Suite 510

Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

4,486 SF

Floor

5

Divisible Space

4,486 - 4,486 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

510

Suite 600 General Office Negotiable 9,844 SF 6 Full Service

Suite 600

Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

9,844 SF

Floor

6

Divisible Space

9,844 - 9,844 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

600

Suite 200

Space Type
General Office
Lease Rate
$20.00/SF/YR
Total Space
6,951 SF
Floor
2
Lease Type
Full Service
Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

6,951 SF

Floor

2

Divisible Space

6,951 - 6,951 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

200

Suite 400

Space Type
General Office
Lease Rate
Negotiable
Total Space
4,229 SF
Floor
4
Lease Type
Full Service
Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

4,229 SF

Floor

4

Divisible Space

4,229 - 4,229 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

400

Suite 450

Space Type
General Office
Lease Rate
$20.00/SF/YR
Total Space
3,086 SF
Floor
4
Lease Type
Full Service
Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

3,086 SF

Floor

4

Divisible Space

3,086 - 3,086 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

450

Suite 500

Space Type
General Office
Lease Rate
$20.00/SF/YR
Total Space
3,621 SF
Floor
5
Lease Type
Full Service
Space Type

General Office

Lease Rate

$20.00/SF/YR

Additional Rent

Price on request

Total Space Available

3,621 SF

Floor

5

Divisible Space

3,621 - 3,621 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

500

Suite 510

Space Type
General Office
Lease Rate
Negotiable
Total Space
4,486 SF
Floor
5
Lease Type
Full Service
Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

4,486 SF

Floor

5

Divisible Space

4,486 - 4,486 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

510

Suite 600

Space Type
General Office
Lease Rate
Negotiable
Total Space
9,844 SF
Floor
6
Lease Type
Full Service
Space Type

General Office

Lease Rate

Negotiable

Additional Rent

Price on request

Total Space Available

9,844 SF

Floor

6

Divisible Space

9,844 - 9,844 SF

Available Date

Immediate

Lease Type

Full Service

Renewal Option

Yes

Sublease

No

Space Number

600

Contacts

broker
Brandon Burmeister

Cushman & Wakefield

broker
Leah Masson

Cushman & Wakefield

Building Details

  • For Lease Price on request
  • Property Type Office - General Office
  • Property Size 58,240 SF
  • Additional Rent Price on request
  • # of Floors 10
  • Building Class B
  • Year Built 1907
  • Date Updated Sep 1, 2026

Location

  • City Seattle, WA
  • Neighborhood Seattle Central Business District
  • Zip Code 98101
  • Market Seattle
  • Map
  • Street
  • Walk score 99/100 Walker's Paradise
  • Transit score 100/100 Rider's Paradise
  • Bike score 70/100 Very Bikeable
Powered by Walk Score ®

Points of Interest

5th Avenue

0.09 miles

3rd Avenue & Pine Street

0.09 miles

5th Avenue & Pine Street

0.11 miles

Westlake Hub

0.18 miles

Westlake And 7th

0.31 miles

Westlake & 9th-Denny

0.51 miles

Pioneer Square Station

0.55 miles

Seattle

0.58 miles

Pioneer Square

0.60 miles

Broadway & Marion

0.74 miles

ChargePoint

0.21 miles

Greenlots

0.52 miles

Blink

0.52 miles

76

0.66 miles

Shell

0.67 miles

EVgo

0.75 miles

Electrify America

1.03 miles

7-Eleven

1.18 miles

Volta

1.34 miles

Charge Seattle

2.75 miles

Century Square Garage

0.05 miles

Decatur Building

0.09 miles

West Edge Garage

0.12 miles

Sorreano Parking Garage

0.14 miles

Third and Stewart Garage

0.15 miles

Cobb Garage

0.18 miles

Impark Lot 106

0.18 miles

Midtown Parking Lot 60

0.19 miles

6th Avenue Garage - Hilton Seattle Parking

0.19 miles

Midtown Parking

0.20 miles

Zipcars

0.13 miles

National

0.14 miles

Enterprise

0.15 miles

SIXT

0.16 miles

Budget

0.21 miles

Avis

0.21 miles

Hertz

0.22 miles

Mutual Detail

0.25 miles

Tempus Detailing

0.27 miles

Zipcar

0.54 miles

Delina

0.01 miles

Dog In the Park

0.03 miles

Yard House

0.03 miles

Bourbon Steak

0.04 miles

Potbelly

0.05 miles

Veggie Grill

0.05 miles

Frolik Kitchen + Cocktails

0.06 miles

Gyros Place

0.06 miles

Sushi Kudasai

0.06 miles

Taste of Asia

0.06 miles

Ross

0.07 miles

Westlake Center

0.11 miles

Nordstrom

0.11 miles

Pacific Place

0.17 miles

H Mart

0.17 miles

Target

0.18 miles

Metropolitan Deli + Cafe

0.37 miles

Dan's Belltown Grocery

0.44 miles

Whole Foods Market

0.54 miles

City Market

0.65 miles

Passport Health Downtown Seattle Travel Clinic

0.09 miles

Walgreens

0.09 miles

Downtown Seattle Medical Center

0.12 miles

ZoomCare

0.14 miles

Seattle Infectious Disease Clinic

0.15 miles

CVS Pharmacy

0.18 miles

Providence Heritage House at the Market

0.28 miles

Pike Market Medical Clinic

0.29 miles

Capsule

0.31 miles

West Precinct

0.40 miles

Listing Summary

  • Office Space Available at 1500-1506 4th Ave

    Office space currently available at 1500-1506 4th Ave adds up to a total of 32,217 square feet across 6 listing(s). The largest individual space listed offers 9,844 square feet. Property use types available for lease at this property include: general office.

  • Learn More about 1500-1506 4th Ave

    1500-1506 4th Ave is located in the Seattle market and pertains to the 98101 zip code. The property incorporates a total of 32,217 square feet of space. 1500-1506 4th Ave was built in 1907.

    Interested in researching more about this property? Access in-depth research on 1500-1506 4th Ave, 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 1500-1506 4th Ave is located, you can currently find 929 office space(s) for rent. In total, this amounts to 9,169,323 square feet of available office space for lease opportunities.

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