Realmo

Buy
- For Sale
- Post a Listing
Property Types
- Retail
  
  Showroom
- Office
  
  Office Units
  
  Building
- Residential Income
  
  Multifamily
  
  Quadplex
- Industrial
  
  Flex Space
- Warehouse
- Land
  
  Residential
  
  Commercial
- Specialty
Rent
- For Lease
- Post a Listing
Space Uses
- Retail
- Office
- Automotive
- Industrial
- Warehouse
- Flex
- Specialty
Analytics
- Analytics Center
- Value Estimation
- Cap Rate
- Ownership Records
- Zoning Insight
- Location Intelligence
- Business Placement
- Recently Sold
- Off-Market Leads

Advertise Sign In

For Sale
- Retail
  - Showroom
- Office
  - Office Units
  - Building
- Residential Income
  - Multifamily
  - Quadplex
- Industrial
  - Flex Space
- Warehouse
- Land
  - Residential
  - Commercial
- Specialty
For Lease
- Retail
- Office
- Automotive
- Industrial
- Warehouse
- Flex
- Specialty
Analytics Center
Value Estimation
Cap Rate
Ownership Records
Zoning Insight
Location Intelligence
Business Placement
Recently Sold
Off-Market Leads
Advertise
Find Brokers

Seatac, WA

Building

Seatac, WA Office Buildings for Sale

List

Map

Burien, WA Seattle, WA Tukwila, WA Shoreline, WA Normandy Park, WA Kent, WA Des Moines, WA Renton, WA

Class A Office Suites Available

Updated: Nov 21, 2025

Class A Office Suites Available

21400 International Blvd, Seatac, WA 98198

Contact for pricing

16,573 sqft

Prime SeaTac location with convenient access to I‑5, new light rail, and SR 509 extensions.
Multiple office suites available in a Class A office building.
Close proximity to major transportation hubs and corporate offices.
Impressive presence overlooking International Blvd with waterway and airport runway views.
Plentiful parking available.

Two-Story Office Building Available

Updated: Sep 10, 2025

Two-Story Office Building Available

19530 International Boulevard |, Seatac, WA 98188

Contact for pricing

12 sqft

Anchor tenant space available with naming rights
Flexible lease term with numerous spaces
Ample parking
Quick access to area highways
Quick access to area amenities

Three-Story Office Building

Three-Story Office Building

1200 S 192nd St, Seatac, WA 98148

Contact for pricing

Three-story office building with partial vacancies, including entire 1st floor and most of the 3rd floor for owner-user use starting July 1, 2026.

See what stands out in King County

We check every for-sale listing in the county against comparable properties across the country. Most price about where you would expect. A few are worth a second look.

We check every listing here. A few are worth a second look.

Cap Rate available after sign in

NOI available after sign in

Local Demand available after sign in

Based on your search, we've compiled 44 Potential Opportunities for your consideration. Besides 3 Active listings in Seatac, WA, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 37 Off-Market properties to explore as potential leads

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Class A Office Building

Class A Office Building

6703 S 234th St, Kent, WA 98032

$6,500,000

32,077 sqft

Architecturally appealing Class A office building in Kent Valley.

Class A Office Building

Class A Office Building

6703 S 234th St, Kent, WA 98032

Contact for pricing

35,550 sqft

Class A office building in a prime Kent Valley location.

Flexible Use Development Site

Flexible Use Development Site

444 Andover Park East, Tukwila, WA 98188

Contact for pricing

15,519 sqft

Development site near Southcenter Mall with access to I-5.

Office Building For Sale

Office Building For Sale

370 Corporate Drive North, Tukwila, WA 98188

Contact for pricing

10,553 sqft

Office building available for sale at 370 Corporate Drive North in Tukwila, Washington.

Off-Market Properties in Seatac, WA

Consider similar Off-Market properties in Seatac, WA. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

18000 International Blvd

OFFICE BUILDING

18000 International Blvd, Seatac, WA 98188-4253

$16,135,000

Estimated value

226,771 sqft 14.95 AC lot

2701 200th St

OFFICE BUILDING

2701 200th St, Seatac, WA 98198-5206

$165,000

Estimated value

300 sqft 0.73 AC lot

3100 176th St

OFFICE BUILDING

3100 176th St, Seatac, WA 98188-4051

$4,365,000

Estimated value

24,211 sqft 1.52 AC lot

19518 International Blvd

OFFICE BUILDING

19518 International Blvd, Seatac, WA 98188-5493

$2,250,000

Estimated value

13,390 sqft 0.89 AC lot

18625 Des Moines Memorial S Dr

OFFICE BUILDING

18625 Des Moines Memorial S Dr, Seatac, WA 98148-1921

$3,650,000

Estimated value

14,270 sqft 8.81 AC lot

20313 28th S Ave

OFFICE BUILDING

20313 28th S Ave, Seatac, WA 98198-5228

$500,000

Estimated value

91,636 sqft 4.18 AC lot

1200 192nd St

OFFICE BUILDING

1200 192nd St, Seatac, WA 98148-2345

$300,000

Estimated value

21,154 sqft 0.40 AC lot

2800 192nd St

OFFICE BUILDING

2800 192nd St, Seatac, WA 98188-5100

$4,025,000

Estimated value

36,724 sqft 0.98 AC lot

21400 International Blvd

OFFICE BUILDING

21400 International Blvd, Seatac, WA 98198-6086

$2,225,000

Estimated value

16,573 sqft 0.76 AC lot

2821 154th St

OFFICE BUILDING

2821 154th St, Seatac, WA 98188-2034

$1,465,000

Estimated value

7,872 sqft 0.61 AC lot

2825 154th St

OFFICE BUILDING

2825 154th St, Seatac, WA 98188-2034

$665,000

Estimated value

2,280 sqft 1.03 AC lot

19530 International Blvd

OFFICE BUILDING

19530 International Blvd, Seatac, WA 98188-5494

$2,940,000

Estimated value

20,852 sqft 0.68 AC lot

16704 International Blvd

OFFICE BUILDING

16704 International Blvd, Seatac, WA 98188-3116

$1,065,000

Estimated value

5,184 sqft 0.21 AC lot

19235 International Blvd

OFFICE BUILDING

19235 International Blvd, Seatac, WA 98188-5302

$27,545,000

Estimated value

128,291 sqft 1.57 AC lot

19550 International Blvd

OFFICE BUILDING

19550 International Blvd, Seatac, WA 98188-5426

$3,100,000

Estimated value

18,451 sqft 1.02 AC lot

16015 International Blvd

OFFICE BUILDING

16015 International Blvd, Seatac, WA 98188-2651

$270,000

Estimated value

2,704 sqft 0.16 AC lot

860 192nd St

OFFICE BUILDING

860 192nd St, Seatac, WA 98148-2208

$275,000

Estimated value

2,505 sqft 0.75 AC lot

16025 International Blvd

OFFICE BUILDING

16025 International Blvd, Seatac, WA 98188-2651

$405,000

Estimated value

1,998 sqft 4.22 AC lot

19600 International Blvd

OFFICE BUILDING

19600 International Blvd, Seatac, WA 98188-5481

$2,980,000

Estimated value

13,886 sqft 0.50 AC lot

2907 170th St

OFFICE BUILDING

2907 170th St, Seatac, WA 98188-3505

$490,000

Estimated value

2,294 sqft 0.62 AC lot

15220 32nd S Ave

OFFICE BUILDING

15220 32nd S Ave, Seatac, WA 98188-2101

$1,085,000

Estimated value

4,064 sqft 0.60 AC lot

Seatac, WA Office Buildings Market Trends and Statistics

Explore 40 office buildings for sale in Seatac, WA, showcased through 3 active listings on our real estate platform. These investment opportunities span a total of 16,585 square feet of properties for sale.

List

Map

Top Commercial Asset Segments

Commercial property segments ranked by active listings on the market

Demographics Overview

Population 112K

Population Growth (5Y) +1.7%

Median Household Income $82,767

College Educated 28.3%

Need Help?

Reach out if you need assistance with Realmo tools or have questions about your listings

Contact Us