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    Contra Costa County, CA Office Buildings for Sale

    43 results
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    Point Richmond Office Investment Opportunity
    $975,000
    4,535 SF

    Point Richmond Office Investment Opportunity

    116 Washington Ave, Richmond, CA 94801

    Well-maintained office property in Point Richmond with income potential.

    • High current (7.0%) and pro forma (8.1%) cap rates offer reliable income and growth potential.
    • Well‑maintained 4,535 SF office property with a history of strong tenant demand.
    • Located in the heart of Point Richmond's commercial hub with walkable access to retail and dining.
    • Comprised of five individual office suites with flexible configurations.
    • Historically high occupancy rates and low operational costs.
    Updated: Feb 26
    View details
    Historic Pinole Commercial Office Property
    $799,000
    2,652 SF

    Historic Pinole Commercial Office Property

    2131 San Pablo Ave, Pinole, CA 94564

    Unique commercial office in Old Town Pinole with historic charm.

    • Prime location in desirable Old Town Pinole, close to cafes, shopping, and the coastline.
    • Unique historical building, originally one of the area's first churches (built in the late 1800s).
    • Light‑filled interior with high ceilings and large stained glass windows.
    • Functional layout with office and conference rooms, reception area, and two bathrooms.
    • Grand spiral staircase and classical fixtures create a sophisticated ambiance.
    Updated: Oct 15, 2025
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    Historic Downtown Concord Office Building
    $925,000
    2,316 SF

    Historic Downtown Concord Office Building

    Historic building in downtown Concord with commercial mixed-use zoning.

    2080 East St, Concord, CA 94520
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    Downtown Martinez Office Building
    $999,999
    7,382 SF

    Downtown Martinez Office Building

    Two-story office building in downtown Martinez, approximately 7,382 SF.

    820 Alhambra Ave, Martinez, CA 94553
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    Lafayette Office/Retail Building For Sale
    $4,250,000
    8,580 SF

    Lafayette Office/Retail Building For Sale

    Two-story, 8,580 SF office/retail building near Highway 24.

    Lafayette, CA 94549
    View details
    Freestanding Building with Dedicated Parking
    Contact for pricing
    9,465 SF

    Freestanding Building with Dedicated Parking

    Freestanding office building with dedicated parking lot in Walnut Creek.

    1630 Mt Diablo Blvd, Walnut Creek, CA 94596
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    Downtown Martinez Office Building For Sale
    $999,999
    7,382 SF

    Downtown Martinez Office Building For Sale

    Two-story, 7,382 SF office building in downtown Martinez.

    Martinez, CA 94553
    View details
    Updated Single Story Office Building
    $1,500,000
    2,704 SF

    Updated Single Story Office Building

    Functional, updated office building in Pleasant Hill, California.

    56 Mayhew Way, Pleasant Hill, CA 94523
    View details
    Downtown Antioch Owner/User Opportunity
    $1,500,000
    9,956 SF

    Downtown Antioch Owner/User Opportunity

    Two-story, 9,956 SF building in downtown Antioch.

    218 I St, Antioch, CA 94509
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    Two-Story Office/Retail Building For Sale
    $4,250,000
    8,580 SF

    Two-Story Office/Retail Building For Sale

    Two-story, 8,580 RSF office/retail building with high-quality renovations.

    1080 Carol Ln, Lafayette, CA 94549
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    Downtown Martinez Craftsman Office Building
    $838,000

    Downtown Martinez Craftsman Office Building

    Iconic Craftsman office building in Downtown Martinez near courthouses.

    1004 Court St, Martinez, CA 94553
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    High-Visibility Building on Major Arterial
    $720,000

    High-Visibility Building on Major Arterial

    High-visibility building with ample parking and upgraded mechanicals.

    6645 Alhambra Ave, Martinez, CA 94553
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    Office Building Near CA-4 Freeway
    $5,375,000
    24,638 SF

    Office Building Near CA-4 Freeway

    Office building with convenient location near CA-4 Freeway.

    5249 Deer Valley Rd, Antioch, CA 94531
    View details
    El Cerrito Office Building
    $2,000,000
    9,392 SF

    El Cerrito Office Building

    Office building with development potential near BART and shopping.

    1600 Kearney St, El Cerrito, CA 94530
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    Point Richmond Historical District Building
    $3,865,750
    15,463 SF

    Point Richmond Historical District Building

    Unique investment opportunity in an amenity-rich, walkable location.

    151-157 Park Pl, Richmond, CA 94801
    View details
    Walnut Creek Office Building
    $6,400,000
    16,022 SF

    Walnut Creek Office Building

    Office building with redevelopment potential in downtown Walnut Creek.

    1801 N California Blvd, Walnut Creek, CA 94596
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    Fully Leased Retail/Office Building
    $8,237,000
    20,198 SF

    Fully Leased Retail/Office Building

    Two-story, 20,198 SF retail/office building in Walnut Creek, CA.

    2099 Mt Diablo Blvd, Walnut Creek, CA 94596
    View details
    Medical Office Buildings Near Hospitals
    $3,799,999
    14,878 SF

    Medical Office Buildings Near Hospitals

    Office/medical buildings near Kaiser Permanente & John Muir Medical Offices.

    309-311 Lennon Ln, Walnut Creek, CA 94598
    View details
    Pinole Office Building with Yard
    Contact for pricing
    1,984 SF

    Pinole Office Building with Yard

    1,984 SF office building with a large fenced yard.

    890 San Pablo Ave, Pinole, CA 94564
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    Multi-Tenant Office Building in Pittsburg
    $750,000
    3,200 SF

    Multi-Tenant Office Building in Pittsburg

    Multi-tenant office building with income potential in Pittsburg, California.

    3978 Railroad Ave, Pittsburg, CA 94565
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    Deer Valley Road Office Building
    $5,375,000
    24,638 SF

    Deer Valley Road Office Building

    Office building for sale on Deer Valley Road.

    5201-5249 Deer Valley Rd, Antioch, CA 94531
    View details
    Remodeled Office Building For Sale
    $1,600,000

    Remodeled Office Building For Sale

    Move-in ready, furnished office building with kitchen and storage.

    418 Wilson Ave, Richmond, CA 94805
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    Medical/Professional Flex Office Building
    Contact for pricing
    29,489 SF

    Medical/Professional Flex Office Building

    Medical/professional and flex office building in Antioch, California.

    2213 Buchanan Rd, Antioch, CA 94509
    View details
    Medical Office Buildings Near Hospitals
    $3,799,999
    14,878 SF

    Medical Office Buildings Near Hospitals

    Office/medical buildings near Kaiser Permanente & John Muir Medical Offices.

    Walnut Creek, CA 94598
    View details

    Contra Costa County, CA Office Buildings Investment Opportunities Market Analysis

    Explore 1211 office buildings for sale in Contra Costa County, CA, showcased through 43 active listings on our real estate platform. These investment opportunities span a total of 15,928,054 square feet of properties for sale, with an estimated market value of $903,124,000.

    Sale prices for office properties in Contra Costa County, CA start at $60,000, averaging $1,492,766, and reaching up to $89,675,000 — 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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