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    Contra Costa County, CA Office Space for Sale

    19 results
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    Class A Office Suite
    $749,000

    Class A Office Suite

    100 Cortona Way, Brentwood, CA 94513

    Spacious suite ideal for medical or professional office use.

    • Prime location in Brentwood, adjacent to John Muir Medical Center and retail businesses, with easy access to Highway 4 Bypass.
    • Versatile space suitable for medical, dental, therapy, or professional office use (finance, real estate, law, etc.).
    • Spacious first‑floor suite featuring 5 private offices, reception area, break room, large conference room, and open work space.
    • High‑end finishes and decorative lobby create a professional and attractive environment.
    • Ample parking available for patients/clients.
    Updated: Feb 4
    View details
    Class A Office Suite
    $799,000
    2,284 SF

    Class A Office Suite

    100 Cortona Way, Brentwood, CA 94513

    2,284 SF Class A office suite in Brentwood, CA.

    • Prime location in Brentwood, situated off Highway 4 Bypass and adjacent to John Muir Medical Center and retail businesses.
    • Large 2,284 sqft first‑floor suite in Class A Meridian Professional Building.
    • Versatile space suitable for medical, dental, physical therapy, or professional office use.
    • Features 5 private offices, reception area, break room, large conference room, and work stations.
    • Building amenities include common area bathrooms, elevator, and decorative lobby with high‑end finishes.
    Updated: Nov 9, 2025
    View details
    Danville Professional Office For Sale
    Contact for pricing
    3,148 SF

    Danville Professional Office For Sale

    Professional office building near downtown Danville, suitable for owner/user.

    30 Oak Ct, Danville, CA 94526
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    East Antioch Office Space Available
    $562,000
    1,498 SF

    East Antioch Office Space Available

    Office space for sale with easy highway access and signage.

    5159 Lone Tree Way, Antioch, CA 94531
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    Pinole Commercial Portfolio For Sale
    Contact for pricing

    Pinole Commercial Portfolio For Sale

    Three-building commercial portfolio in Pinole, California, with strong visibility and access.

    1677 Appian Way, Pinole, CA 94564
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    Lafayette Office Space Opportunity
    Contact for pricing
    9,542 SF

    Lafayette Office Space Opportunity

    Premium office space near downtown Lafayette and Highway 24.

    3800 Mt Diablo Blvd, Lafayette, CA 94549
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    Mixed-Use Property in Antioch, CA
    $499,900

    Mixed-Use Property in Antioch, CA

    Mixed-use property with residential and commercial income potential in Antioch.

    201 Rossi Ave, Antioch, CA 94509
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    Downtown Office Space Available
    Contact for pricing
    6,403 SF

    Downtown Office Space Available

    6,843 SF office space in a central location.

    1300 Civic Dr, Walnut Creek, CA 94596
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    Medical and Office Space Available
    Contact for pricing
    5,508 SF

    Medical and Office Space Available

    Medical and office spaces available near residential and retail areas.

    1030 Country Club Dr, Moraga, CA 94556
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    Updated Retail/Office Building For Sale
    $1,400,000

    Updated Retail/Office Building For Sale

    Retail and office suites in blossoming Downtown Martinez.

    411 Ferry St, Martinez, CA 94553
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    Creative Office Space Available
    Contact for pricing
    13,765 SF

    Creative Office Space Available

    Creative office space available for lease or sale soon.

    480-488 North Wiget Ln, Walnut Creek, CA 94598
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    Multi-Tenant Building in Pittsburg Heart
    $1,430,000
    6,855 SF

    Multi-Tenant Building in Pittsburg Heart

    6,855 SF multi-tenant building suitable for retail, service, or office.

    4156 Railroad Ave, Pittsburg, CA 94565
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    Downtown Danville Condominium Opportunity
    Contact for pricing
    1,972 SF

    Downtown Danville Condominium Opportunity

    Condominium in the heart of Downtown Danville for sale.

    321 Hartz Ave, Danville, CA 94526
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    Spacious Condo in Walnut Creek
    Contact for pricing
    3,568 SF

    Spacious Condo in Walnut Creek

    Largest condo available, ideal for office use in Walnut Creek.

    226 N Wiget Ln, Walnut Creek, CA 94598
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    Mixed-Use Building in Downtown Martinez
    Contact for pricing

    Mixed-Use Building in Downtown Martinez

    Two-story mixed-use building with retail and office space.

    702-712 Main St, Martinez, CA 94553
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    Concord Office Space Available
    Contact for pricing
    4,896 SF

    Concord Office Space Available

    Office space for sale in Concord, California.

    2820 Broadmoor Ave, Concord, CA 94520
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    Established Medical Office For Sale
    $375,000
    1,500 SF

    Established Medical Office For Sale

    Medical office space available for sale, suitable for dental practice.

    Gladstone Dr #4, Pittsburg, CA 94565
    View details
    Mixed-Use Condo in Pleasant Hill
    $250,000
    548 SF

    Mixed-Use Condo in Pleasant Hill

    Condo in mixed-use complex suitable for business or residential purposes.

    Gregory Ln #8, Pleasant Hill, CA 94523
    View details
    Walnut Creek Mixed-Use Investment
    $3,350,000
    6,056 SF

    Walnut Creek Mixed-Use Investment

    Prime Walnut Creek location, high traffic, 6,056 SF.

    1500-1530 Main St, Walnut Creek, CA 94596
    View details
    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 19 Active Listings in Contra Costa County, CA, we suggest to view alternatives - similar 9 Off-Market properties to explore as potential leads.

    Explore Off-Market Properties in Contra Costa County, CA

    Consider similar Off-Market properties in Contra Costa County, CA. 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.

    2570 San Ramon Valley Blvd

    2570 San Ramon Valley Blvd

    Office space • 30,411 SF
    Value Estimation by Request
    2570 San Ramon Valley Blvd, San Ramon, CA 94583
    View details
    Danville Cmns On Hartz |

    Danville Cmns On Hartz |

    Medical offices • 11,333 SF
    Value Estimation by Request
    0 Danville Cmns On Hartz |, Danville, CA 94526
    View details
    15 Railroad Ave

    15 Railroad Ave

    Office space
    Value Estimation by Request
    15 Railroad Ave, Danville, CA 94526
    View details
    1777 Oakland Blvd

    1777 Oakland Blvd

    Office space • 41,644 SF
    Value Estimation by Request
    1777 Oakland Blvd, Walnut Creek, CA 94596
    View details
    2810 Lone Tree Way

    2810 Lone Tree Way

    Office space • 707 SF
    Value Estimation by Request
    2810 Lone Tree Way, Antioch, CA 94509
    View details

    Contra Costa County, CA Office Space Investment Opportunities Market Analysis

    Explore 28 office space for sale in Contra Costa County, CA, showcased through 19 active listings on our real estate platform. These investment opportunities span a total of 10,890 square feet of properties for sale, with an estimated market value of $9,414,900.

    Sale prices for office space in Contra Costa County, CA start at $0.00, averaging $336,246, and reaching up to $3,350,000 — 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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