Sonoma County, CA Triplexes for sale

Updated: Sep 18

Victorian Triplex Property

732 Petaluma Boulevard S, Petaluma, CA 94952

$1,599,000

2,656 sqft 0.27 AC lot

Three units across a two‑story Victorian duplex and remodeled cottage
0.27‑acre parcel with 2,656 square feet of property size
Approximately 5,000 square feet of private, level open space
600‑square‑foot garage and storage building
Duplex retains high ceilings, original millwork, and historic materials

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Updated: Jul 19

Three-Unit Vintage Triplex

870 3rd Street, Santa Rosa, CA 95404

$850,000

2,242 sqft 0.09 AC lot

Three 1‑bedroom, 1‑bath units within a 2,242‑square‑foot triplex
1927 construction with original hardwood floors and updated kitchens and bathrooms
Unit 3 includes an additional finished room and accessible features
Unit 3 roof replaced in 2020
0.0927‑acre lot with shared gravel driveway and small shared backyard

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Three-Unit Residential Property

1270 Brockman Lane, Sonoma, CA 95476

$1,295,000

2,798 sqft 0.14 AC lot

Sonoma multifamily property with individual garages and in-unit laundry equipment.

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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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Triplex with Fenced Yards

487 Hearn Ave, Santa Rosa, CA 95407

$849,000

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

14571 Canyon 1 Road, Guerneville, CA 95446

$675,000

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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Updated Triplex with Accessory Units

7200 Roxanne Lane, Rohnert Park, CA 94928

$1,595,000

4,936 sqft

Three permitted residences occupy one lot, with kitchens, bathrooms, laundry, and private living areas in the accessory units.

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1927 Vintage Triplex Investment

870 3rd St, Santa Rosa, CA 95404

$850,000

Well-maintained 1927 triplex with three 1-bedroom units, updated kitchens and baths, and a shared gravel driveway.

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Triplex with Private Garages

1270 Brockman Lane, Sonoma, CA 95476

$1,295,000

Each residence includes stacked laundry and a one-car garage.

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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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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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Sonoma County, CA Triplexes Market Trends and Statistics

Explore 11 triplexes for sale in Sonoma County, CA, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 19,388 square feet of properties for sale, with an estimated market value of $11,423,000.

Sale prices for three-family homes in Sonoma County, CA start at $675,000, averaging $1,142,300, 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.

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: 17072064502

www.kellerwilliamsrealty.com

Corcoran Icon Properties

2416 Sonoma Avenue Santa Rosa, CA 95405

Phone: 18554371704

www.CorcoranIcon.com

Westgate Real Estate

221 Petaluma Blvd South Petaluma, CA 94952

Phone: 17077699590