King County, WA Office Spaces for sale

Updated: Mar 8

Seattle Office Building For Sale

12535-12537 15th Ave NE, Seattle, WA 98125

$6,625,000

34,354 sqft

Seattle office building for sale
34,354 square feet available, inform your clients about the ample space.
Year Built: 1985

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12535-12537 15th Ave NE, Seattle, WA 98125

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Est. Cap Rate

8.9%
Above avg (5.9%)
Est. NOI

$591K
Annual
Price @ 7% Cap

$8.45M
Above asking

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Updated: Aug 8

Multi-Tenant Office Building

402 S 333rd St, Federal Way, WA 98003

$2,595,000

14,048 sqft 1.25 AC lot

Approximately 14,048 SF office building on approximately 54,798 SF of land
39 predominantly small‑format office units
Approximately 93.8% occupied
New roof, HVAC improvements, and lot paving
Tenant mix includes professional service, health, and beauty users

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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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Historic Loft Retail/Office Condo

530-c-526 1st Ave S, Seattle, WA 98104

$650,000

1,280 sqft

Street-level commercial condo with expansive windows, high ceilings, and a loft layout in the Florentine Condominium.

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Warehouse with Operational Paint Booth

17000 West Valley Highway, Tukwila, WA 98188

$3,100,000

9,800 sqft

Warehouse with grade level door, fenced secure site, and operational paint booth plus office/showroom space.

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Ground-Floor Office Unit

A2-3213 Harbor Ave Sw, Seattle, WA 98116

$1,265,000

2,000 sqft

Open commercial layout with a private office, multiple baths, storage, large windows, and high ceilings.

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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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Des Moines Office Building For Sale

22608 Marine View Dr S, 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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Duvall Office/Retail Condo For Sale

109-14524 Main St Ne, Duvall, WA 98019

$1,490,000

5,700 sqft

Mid-Town commercial condo with long-term tenant and high visibility.

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Bellevue Office Condo For Sale

9 Lake Bellevue Dr, Bellevue, WA 98005

$1,575,000

1,571 sqft

Office condo for sale in Bellevue, Washington with parking.

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Upper Queen Anne Office Building

20 W Galer St, Seattle, WA 98119

$9,250,000

19,669 sqft 0.17 AC lot

Modern office building with rooftop deck and parking.

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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.

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Ground-Floor Office End Unit

14524 Main Street NE #109, Duvall, WA 98109

$1,490,000

5,700 sqft

Commercial condo with direct customer parking, dual entry points, and ADA access.

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Renton Office Space For Sale

200 SW 41st St, Renton, WA 98057

$3,950,000

13,385 sqft

High-quality office space in Renton, near various amenities and lodging.

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Retail/Office Space with Shop/Warehouse

22805 SE 216th Way, Maple Valley, WA 98038

$895,000

3,216 sqft

Retail/office space with detached shop/warehouse and fenced yard/parking.

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Renovated Ground-Floor Office Units

8745 Greenwood Avenue, Seattle, WA 98103

$475,000

1,367 sqft

Flexible office configuration with private work areas, reception space, and dedicated in-suite restroom access.

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Renovated Office Building

640 NW Gilman Blvd, Issaquah, WA 98027

Contact for pricing

8,704 sqft 0.90 AC lot

Owner-user office property with elevator-served second floor, mixed-use zoning, and convenient interstate access.

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Flex Space Building with On-Site Parking

10310 Aurora Ave N, Seattle, WA 98133

Contact for pricing

7,464 sqft

Flex-oriented building with main-floor space, mezzanine office, basement storage and secure vault area, plus on-site parking.

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Mercer Island Development Opportunity

3003 Island Crest Way, Mercer Island, WA 98040

$4,950,000

3,683 sqft 0.44 AC lot

Prime development site near future light rail station.

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The Ballard Building Mixed-Use Property

2208 NW Market St, Seattle, WA 98107

Contact for pricing

79,953 sqft 0.51 AC lot

Historic improvements combine ground-floor retail, professional offices, and a penthouse apartment.

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Leased Office Development Parcel

3207 Rainier Avenue S, Seattle, WA 98144

$4,500,000

3,384 sqft 0.37 AC lot

Fully fenced parcels total 16,200 sf with a leased 3,384 sf office building, zoned SM-NR 95 (M).

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Old Rainier Brewery Mixed-Use Campus

3100 Airport Way S, Seattle, WA 98134

Contact for pricing

181,453 sqft

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

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King County, WA Office Spaces Market Trends and Statistics

Explore 279 office spaces for sale in King County, WA, showcased through 279 active listings on our real estate platform. These investment opportunities span a total of 4,419,948 square feet of properties for sale, with an estimated market value of $202,563,379.

Sale prices for office spaces in King County, WA start at $250,000, averaging $2,500,782, and reaching up to $11,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.