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    King County, WA Office Buildings for Sale

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    Medical Office Property with Three Suites
    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
    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
    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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    Downtown Office Building Opportunity
    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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    Old Rainier Brewery Mixed-Use Campus
    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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    Single-Tenant Office Building
    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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    Shoreline Professional Center For Sale
    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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    Seven-Suite Craftsman Office Building
    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
    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
    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
    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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    Upper Queen Anne Office Building
    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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    Multi-Tenant Professional Office Building
    Multi-Tenant Professional Office Building

    5430 California Ave Sw Unit Coml2, Seattle, WA 98136

    $1,175,000
    3,572 sqft

    Multi-tenant professional office building available for sale.

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    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.

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    Office Building Near Transit
    Office Building Near Transit

    3600 136th Pl, Bellevue, WA 98006

    $30,000,000
    86,524 sqft

    Office property adjacent to Eastgate Park & Ride with convenient connections to I-90 and I-405.

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    Seattle Office Building For Sale
    Seattle Office Building For Sale

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

    $6,625,000
    34,354 sqft

    Seattle office building with 34,354 square feet available for sale.

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    Remodeled Office Buildings
    Remodeled Office Buildings

    31003 18th Ave S, Federal Way, WA 98003

    Contact for pricing
    5,193 sqft

    Two flexible structures offer private entrances, restrooms, and options for multiple occupants or shared office use.

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    Renovated Office Building
    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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    Owner-User Office Building
    Owner-User Office Building

    1617 8th Ave N, Seattle, WA 98109

    Contact for pricing
    7,000 sqft

    Two-level office property with existing occupancy and future space for an owner-user.

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    Two-Story Office Building
    Two-Story Office Building

    1464 49th St NW, Seattle, WA 98107

    Contact for pricing
    1,700 sqft 0.07 AC lot

    Renovated office property with private workspaces, conference rooms, kitchenettes, and secured on-site parking.

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    The Ballard Building Mixed-Use Property
    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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    Multi-Tenant Office Building
    Multi-Tenant Office Building

    25012-25022 104th Ave SE, Kent, WA 98030

    Contact for pricing
    22,387 sqft 1.54 AC lot

    Multi-suite office property with medical and service-oriented users, on-site parking, and one vacant suite.

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    Renovated Two-Story Office Building
    Renovated Two-Story Office Building

    1464 NW 49TH STREET SEATTLE WA 98107, Seattle, WA 98107

    Contact for pricing
    2,292 sqft

    Configured with private offices, conference rooms, kitchen facilities, and a secured yard for office operations.

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    Two-Building Office Property
    Two-Building Office Property

    920 Elliott Avenue West, Seattle, WA 98119

    Contact for pricing
    19,240 sqft

    Includes one vacant building and one building with income through 2028.

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    King County, WA Office Buildings Market Trends and Statistics

    Explore 96 office buildings for sale in King County, WA, showcased through 96 active listings on our real estate platform. These investment opportunities span a total of 2,374,740 square feet of properties for sale, with an estimated market value of $267,849,000.

    Sale prices for office properties in King County, WA start at $985,000, averaging $7,652,828, 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.

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