King County, WA Office Spaces for sale

Updated: Sep 16

Ground-Floor Office Condominium

600 S 227th Street COML, Des Moines, WA 98198

$1,300,000

Approximately 3,282 SF of ground‑floor commercial condominium space
9 private offices plus a large conference room or library
Reception area, waiting space, kitchen, 3 restrooms, and substantial storage
9 parking spaces included
Office and retail use provided in the condominium declaration

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Updated: Sep 22

Medical Office Property with Three Suites

940 Central Ave N, Kent, WA 98032

$2,300,000

6,386 sqft 0.73 AC lot

Three‑suite medical office property occupied by two established dental practices
100% occupied with a new 15‑year lease signed with an existing tenant
7.11% in‑place capitalization rate
2% annual rent increases included in the new lease
Approximately 0.73 acres with onsite parking

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Multi-Tenant Office Building

402 S 333rd St, Federal Way, WA 98003

$2,595,000

14,048 sqft 1.25 AC lot

Small-format suites accommodate professional service, health, beauty, and other commercial occupants.

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Mixed-Use Building with Restaurant

3015 Beacon Ave S, Seattle, WA 98144

$2,695,000

4,283 sqft 0.09 AC lot

Multi-unit commercial property combines restaurant, office, residential, courtyard, and covered parking components.

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Single-Story Medical Office Building

1545 116th Ave NE, Bellevue, WA 98004

$7,000,000

9,304 sqft 0.78 AC lot

Renovated dental build-out with medical office, church, and daycare uses permitted.

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Medical Office Condo Unit

1900 116th Ave NE, Ste 200, Bellevue, WA 98004

$1,600,000

1,768 sqft

Professionally improved medical space with BR-MO zoning and ample parking.

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Standalone Flex Building

724 Auburn Way N, Auburn, WA 98002

$1,495,000

3,828 sqft

Renovated standalone space with gated access, on-site parking, and an adaptable first-floor work area.

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Dental Condo in Mixed-Use Building

1100 106TH AVE NE, Bellevue, WA 98004

$2,750,000

2,559 sqft

Dental condo with four operatories and space to expand within a mixed-use downtown professional setting.

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Ground-Floor Office Unit

3213 Harbor Avenue Sw A2 & 3, Seattle, WA 98126

$1,265,000

2,000 sqft

Flexible workspace with private office, open area, storage, and convenient access to major Seattle destinations.

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Ground-Floor Office Condominium

600 S 227th St, Des Moines, WA 98198

$1,300,000

3,282 sqft

Vacant commercial condominium with established professional-office layout and nine parking spaces.

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Office Condominium with Rooftop Deck

4014 N Aurora Ave B, Seattle, WA 98103

$845,000

3,435 sqft

Large office condominium with private workspaces, a full kitchen, courtyard, and dedicated garage parking.

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Downtown Office Building Opportunity

10107 Woodinville Dr, Bothell, WA 98011

$985,000

2,584 sqft

Two-story office building totals 2,584 RSF with 8 parking stalls in downtown Bothell.

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Street-Front Live-Work Condominium

12536 15th Avenue Ne C1, Seattle, WA 98125

$349,950

877 sqft

Flexible condominium layout includes a loft, private bedroom, full bath, and tandem parking.

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Old Rainier Brewery Mixed-Use Campus

3100 Airport Way, Seattle, WA 98134

$29,035,000

181,453 sqft

Multi-building Seattle campus combining live/work lofts, creative offices, flex space, studios, and retail uses.

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Ground-Floor Office Condo Units

3408 NE 65th Street A, Seattle, WA 98115

$345,000

879 sqft

Flexible professional office configuration with separate entrances, restrooms, HVAC systems, and electric meters.

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Street-Level Office Condo

2901 NE Blakeley Street 3a, Seattle, WA 98105

$560,000

1,021 sqft

ADA access, elevator service, and two deeded garage spaces support a convenient professional setting.

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Single-Tenant Office Building

1820 Eastlake Ave E, Seattle, WA 98102

$16,735,000

34,110 sqft 0.76 AC lot

Fully leased office property with NNN income and a residential redevelopment massing study.

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Medical/Retail Condo Unit For Sale

1106 108th Ave NE Ste 111, Bellevue, WA 98004

$1,495,000

1,238 sqft

Medical/Retail condo available for immediate occupancy with prominent signage.

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Shoreline Professional Center For Sale

16001 Aurora Ave N, Shoreline, WA 98133

$4,750,000

9,044 sqft

Two-story office building with long-term tenant and upside potential.

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Ground-Floor Office Condominium

600 227TH, Unit COML, Des Moines, WA 98198

$1,300,000

3,282 sqft

Configured for office use with private rooms, meeting space, reception, kitchen, restrooms, and storage.

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Seven-Suite Craftsman Office Building

5430 California, Unit 1CU, Seattle, WA 98136

$1,299,000

2,269 sqft

Renovated professional workspace with shared amenities, basement storage, secured parking, and ADA-compliant access.

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Des Moines Office Building For Sale

22608 Marine View Drive South, Des Moines, WA 98198

$2,300,000

5,925 sqft

5,925 SF office building in Des Moines, Washington.

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Seattle Office Building For Sale

614 Boylston Ave E, Seattle, WA 98102

$2,975,000

6,510 sqft

6,510 SF office building in Seattle, WA for sale.

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Office

941 Powell Avenue Southwest, Renton, WA 98057

$2,950,000

9,882 sqft 0.96 AC lot

Office buildings · 9,882 SF

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King County, WA Office Spaces Market Trends and Statistics

Explore 243 office spaces for sale in King County, WA, showcased through 243 active listings on our real estate platform. These investment opportunities span a total of 3,899,817 square feet of properties for sale, with an estimated market value of $407,758,070.

Sale prices for office spaces in King County, WA start at $250,000, averaging $3,740,899, and reaching up to $30,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.