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    Contra Costa County, CA Duplexes for Sale

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    Los Angeles, CA Lancaster, CA San Diego, CA
    14 results
    Lafayette Duplex with ADU Potential
    $1,675,000
    3,282 SF

    Lafayette Duplex with ADU Potential

    3692 Sundale, Lafayette, CA 94549

    Unique duplex in Lafayette with ADU and townhome options.

    • Large duplex configured as a 4‑bedroom townhome with an attached 2‑bedroom ADU, offering flexible usage options.
    • Potential for rental income from the turnkey ADU apartment.
    • Ample parking with 2 attached garages and off‑street parking for up to 8 cars, RV, or boat.
    • Cosmetically refreshed with new interior paint, flooring, inset lights, and bathroom upgrades (2022‑2026).
    • Located in a quiet neighborhood near downtown, the freeway, and Lafayette Reservoir.
    Updated: May 28
    View details
    Development Opportunity with Rental Income
    $1,699,999
    2,799 SF

    Development Opportunity with Rental Income

    230 Cleaveland rd, Pleasant Hill, CA 94523

    0.43-acre development site with existing rental income in Pleasant Hill.

    • Approved development plan for 9 townhouses ready for immediate construction with paid permit fees.
    • Existing rental income of $8,000/month from 3 active rental properties.
    • Located two blocks from the downtown center.
    • Project site is 0.43 acres within PUD 410 zoning district, allowing for a townhouse subdivision.
    • Includes 8 dwelling units and 1 low‑income HDU.
    Updated: Apr 1
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    Concord Multifamily Property with Rental Potential
    $1,075,000
    2,359 SF

    Concord Multifamily Property with Rental Potential

    Multifamily property in Concord's Ridge Park neighborhood with rental potential.

    1067 Ridge Park Dr, Concord, CA 94518
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    Richmond Duplex: Investment and Living
    $750,000
    1,332 SF

    Richmond Duplex: Investment and Living

    Well-maintained Richmond duplex with income potential and updated features.

    1003-1011 Lassen St, Richmond, CA 94805
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    Walnut Creek Duplex Near BART
    $1,199,000
    2,053 SF

    Walnut Creek Duplex Near BART

    Charming duplex in Walnut Creek near BART and downtown.

    2223 Buena Vista Ave, Walnut Creek, CA 94597
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    Richmond Duplex: Investment Opportunity
    $640,000
    1,476 SF

    Richmond Duplex: Investment Opportunity

    Well-located duplex with immediate income and long-term rental potential.

    2620 Maricopa Ave, Richmond, CA 94804
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    Antioch Multifamily Property For Sale
    $650,000
    1,952 SF

    Antioch Multifamily Property For Sale

    Multifamily property in Antioch, CA, with two units and laundry.

    709 W 8Th St, Antioch, CA 94509
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    Richmond Duplex: Spanish Style
    $779,000
    1,630 SF

    Richmond Duplex: Spanish Style

    Classic Spanish-style duplex in Richmond Annex, move-in ready and vacant.

    1532 Mariposa St, Richmond, CA 94804
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    Martinez Multi-Family Investment Opportunity
    $859,900
    2,400 SF

    Martinez Multi-Family Investment Opportunity

    Single family home plus duplex near Highway 680 and downtown.

    4041-4047 Ellis Rd, Martinez, CA 94553
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    Walnut Creek Multifamily with ADU
    $1,650,000
    2,606 SF

    Walnut Creek Multifamily with ADU

    Multifamily property with assumable low-interest loan and ADU.

    1465 Cortez Ct, Walnut Creek, CA 94598
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    Richmond Multifamily Income Property
    $799,000
    1,358 SF

    Richmond Multifamily Income Property

    Income-producing duplex in desirable Richmond Annex neighborhood.

    6130 Van Fleet Ave, Richmond, CA 94804
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    Richmond Duplex: Income and Convenience
    $699,000
    1,332 SF

    Richmond Duplex: Income and Convenience

    Centrally located Richmond duplex with income potential and easy commute.

    1003-1011 Lassen Street, Richmond, CA 94805
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    Lafayette Two-Home Compound with Views
    $2,498,000
    4,314 SF

    Lafayette Two-Home Compound with Views

    Rare compound with two homes, views, and recreation area.

    1603 Reliez Valley Rd, Lafayette, CA 94549
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    Multi-Family Apartment Building For Sale
    Contact for pricing

    Multi-Family Apartment Building For Sale

    Two-unit multi-family apartment building available for purchase.

    551 Grove Ave, Richmond, CA 94801
    View details
    Based on your search, we've compiled 14 Potential Opportunities for your consideration. Besides 14 Active listings in Contra Costa County, CA, we suggest exploring several alternatives:

    Contra Costa County, CA Duplexes Investment Opportunities Market Analysis

    Explore 14 duplexes for sale in Contra Costa County, CA, showcased through 14 active listings on our real estate platform. These investment opportunities span a total of 24,279 square feet of properties for sale, with an estimated market value of $12,548,899.

    Sale prices for duplexes in Contra Costa County, CA start at $640,000, averaging $1,140,809, and reaching up to $2,498,000 — 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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