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    Sonoma County, CA Triplexes for Sale

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    Found 15 triplex listings for sale in Sonoma County, CA, averaging $392/sq ft. Use valuation data to compare deals faster.
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    Three-Residence Triplex on Acreage
    Updated: Oct 20
    Three-Residence Triplex on Acreage

    4310 Lichau Road, Penngrove, CA 94951

    $1,599,000
    4,572 sqft 1.45 AC lot
    Three residences with 4,572 square feet of combined living area
    11 bedrooms across the homes: 8 in the main residence, 2 in the ADU and 1 in the junior ADU
    1.45‑acre parcel in Penngrove
    Approximately 5 minutes to Petaluma Hill Road and 15 minutes to downtown Petaluma
    Covered, guest, boat and RV parking
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    Triplex with Private Yards
    Updated: Oct 12
    Triplex with Private Yards

    1181 Clover Drive, Santa Rosa, CA 95401

    $949,000
    2,482 sqft 0.51 AC lot
    Three detached residences, each separately metered
    2,482 square feet on a 0.5134‑acre parcel
    Front and rear yard space at each unit
    Laundry hookups inside all three residences
    Composition roofs are 15 years old
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    Updated Three-Unit Triplex
    Updated Three-Unit Triplex

    870 3rd Street, Santa Rosa, CA 95404

    $825,000
    2,242 sqft 0.09 AC lot

    Each residence includes interior laundry, and the rear unit has an additional finished room with accessible features.

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    Remodeled Legal Triplex
    Remodeled Legal Triplex

    817 Brigham Avenue, Santa Rosa, CA 95404

    $899,900
    1,852 sqft

    Three separate residences offer full kitchens and laundry hookups, with a two-bedroom home at the front and a rear duplex.

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    Triplex with Fenced Yards
    Triplex with Fenced Yards

    487 Hearn Ave, Santa Rosa, CA 95407

    $835,000
    1,989 sqft 0.22 AC lot

    Three-unit residential property with varied floor plans, covered parking, and public utilities in a private driveway setting.

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    Redwood Triplex with Garages
    Redwood Triplex with Garages

    14571 Canyon 1 Road, Guerneville, CA 95446

    $625,888
    2,867 sqft 0.21 AC lot

    Three two-bedroom residences with public utilities, off-street parking, and a garage near downtown Guerneville.

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    Mid-Century Modern Triplex
    Mid-Century Modern Triplex

    900 Cherry St, Santa Rosa, CA 95404

    $995,000
    1,900 sqft

    Downtown Santa Rosa triplex offers three one-bedroom units, each with a full kitchen and long-term tenants.

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    3-Unit Victorian Triplex
    3-Unit Victorian Triplex

    811 Davis St, Santa Rosa, CA 95401

    $1,095,000
    2,459 sqft

    Two remodeled three-bedroom apartments and a separate studio ADU provide three distinct residential units.

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    Updated Triplex
    Updated Triplex

    108 Sebastopol Avenue, Santa Rosa, CA 95407

    $799,000
    1,222 sqft

    Three residences have received interior and exterior upgrades, including kitchen work and select bathroom improvements.

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    3-Unit Triplex with Carports
    3-Unit Triplex with Carports

    14565 Cyn 1st Rd, Guerneville, CA 95446

    $779,000
    2,872 sqft

    All three residences are rented and separately metered, with covered parking provided for each unit.

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    Three-Unit Redwood Triplex
    Three-Unit Redwood Triplex

    14571 Cyn 1st Rd, Guerneville, CA 95446

    $625,888
    2,867 sqft

    Three matching residences sit among mature redwoods, with river access and local shops and restaurants nearby.

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    Triplex with Private Deck
    Triplex with Private Deck

    17910 Old Monte Rio Road, Guerneville, CA 95446

    $649,000
    2,600 sqft

    Three updated apartments offer a studio, one-bedroom, and two-bedroom layout, with laundry and outdoor space on site.

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    Three-Residence Triplex with Bungalow
    Three-Residence Triplex with Bungalow

    540 S Cloverdale Blvd, Cloverdale, CA 95425

    $1,400,000
    2,720 sqft 0.50 AC lot

    Each residence has separate access and parking, and all three are currently tenant-occupied.

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    Triplex with Attached Garages
    Triplex with Attached Garages

    520 Studley Street, Sonoma, CA 95476

    $1,420,000

    Three residences offer laundry rooms, central air, and a mix of duplex and detached living spaces.

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    Agricultural Land with Pastures
    Agricultural Land with Pastures

    530 Tomales Road, Petaluma, CA 94952

    Contact for pricing

    Fenced grazing acreage includes residential improvements and agricultural outbuildings.

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    15 active listings match your search: For sale in Sonoma County, CA.

    Sonoma County, CA Triplexes Market Trends and Statistics

    Explore 15 triplexes for sale in Sonoma County, CA, showcased through 15 active listings on our real estate platform. These investment opportunities span a total of 32,644 square feet of properties for sale, with an estimated market value of $13,496,676.

    Sale prices for three-family homes in Sonoma County, CA start at $625,888, averaging $964,048, and reaching up to $1,599,000 — 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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    Featured Sonoma County Real Estate Agencies

    Realmo connects you with licensed Sonoma County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Keller Williams Realty
    120 Stony Point Road, Suite 140 Santa Rosa, CA 95401
    Phone: (707) 206-4502
    www.kellerwilliamsrealty.com
    Corcoran Icon Properties
    2416 Sonoma Avenue Santa Rosa, CA 95405
    Phone: (855) 437-1704
    www.CorcoranIcon.com
    W Real Estate
    500 Bicentennial Way, Suite 310 Santa Rosa, CA 95403
    Phone: (707) 591-0570
    www.wrealestate.net/
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