Sonoma County, CA Quadplexes for sale

Updated: Jul 30

Four-Unit Townhouse-Style Quadplex

133 W Agua Caliente Road, Sonoma, CA 95476

$1,350,000

4,836 sqft 0.17 AC lot

Four townhouse‑style units, each with 2 bedrooms and 1.5 baths
Each residence offers ~950 SF; total property size is 4836 Square Feet
Newer roof, double‑pane windows, updated flooring, and fresh exterior paint
Covered carport parking and on‑site laundry
Fully leased quadplex on a 0.1722‑acre lot

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Updated: Sep 18

Single-Level Quadplex

909-917 Hendley Street, Santa Rosa, CA 95404

$795,000

2,300 sqft 0.30 AC lot

Four‑unit property arranged as two separate duplex buildings
2,300 square feet on a 0.3025‑acre parcel
Covered carport space for each unit
Additional open parking in the parking lot
Public water and public sewer

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Two-Level Fourplex with Laundry

2313 Heidi Pl, Santa Rosa, CA 95403

$1,199,000

3,266 sqft

Fully occupied multifamily property with shared laundry and a separate storage room for landlord use.

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Four-Unit Quadplex with Detached Garage

824 Humboldt St, Santa Rosa, CA 95404

$1,175,000

0.17 AC lot

Fully occupied four-unit property across two buildings, with fenced yards, laundry hookups, and recent capital improvements.

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Well-Maintained Fourplex with Covered Parking

406 Klute St, Santa Rosa, CA 95401

$1,245,000

Four-unit mix with covered parking, private storage, and coin-operated laundry generating stated monthly gross rental income.

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Victorian Fourplex with Detached Cottage

152 W 8th St, Santa Rosa, CA 95401

$1,022,000

Historic property offers varied unit layouts, individual electric metering, and separate laundry arrangements.

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Sebastopol Four-Unit Investment Opportunity

495 S Main St, Sebastopol, CA 95472

$1,299,000

Four-unit property with income potential in downtown Sebastopol.

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Fourplex Investment Property

150-152 W 8th, Santa Rosa, CA 95401

Contact for pricing

2,579 sqft

Fourplex with three units in a front Victorian building and a detached rear cottage, each with separate electric meters.

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Multifamily Quadruplex in Petaluma, CA

512 Kentucky St, Petaluma, CA 94952

Contact for pricing

2,100 sqft

Four-unit multifamily property in Petaluma, California.

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Single-Level Four-Unit Quadplex

917 Hendley St, Santa Rosa, CA 95404

$795,000

Two duplex structures provide four two-bedroom residences with individual covered parking and additional lot spaces.

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Two-Story Fourplex With Garages

8270 Lancaster Dr, Cotati, CA 94931

$866,670

Two-story fourplex with four identical 2-bedroom, 1-bath flats, each with a one-car garage and additional parking behind the building.

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Sonoma County, CA Quadplexes Market Trends and Statistics

Explore 11 quadplexes for sale in Sonoma County, CA, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 15,081 square feet of properties for sale, with an estimated market value of $9,746,670.

Sale prices for four-unit buildings in Sonoma County, CA start at $795,000, averaging $1,082,963, and reaching up to $1,350,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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