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    San Mateo County, CA Quadplexes for Sale

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    4-Unit Quadplex with Carport
    Updated: Sep 29
    4-Unit Quadplex with Carport

    835 Fremont ST, Menlo Park, CA 94025

    $2,988,000
    2,162 sqft 0.13 AC lot
    Four remodeled one‑bedroom, one‑bath units
    2,162 square feet of building area on a 5,663‑square‑foot lot (0.1291 acres)
    Built in 1950; zoned R3
    New roof, remodeled bathrooms, and hardwood and tile flooring
    Carport parking with storage, shared coin‑operated laundry, and private patio yard
    View details
    Ocean-View 4-Unit Quadplex
    Updated: Sep 27
    Ocean-View 4-Unit Quadplex

    1 Paloma AVE, Pacifica, CA 94044

    $2,495,000
    5,119 sqft 0.12 AC lot
    Four‑unit apartment property with ocean views
    5,119 square feet on a 0.1159‑acre lot
    Two 3‑bedroom, 1.5‑bath units and two 2‑bedroom, 1‑bath units
    Private balcony or ground‑floor outdoor area for every unit
    Enclosed garage space assigned to each unit
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    Remodeled Four-Unit Quadplex
    Remodeled Four-Unit Quadplex

    519 Natoma Street, San Francisco, CA 94103

    $1,598,000
    3,030 sqft 0.04 AC lot

    Tenant-occupied units feature updated kitchens, baths, and hardwood flooring.

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    Mixed-Use Building with Retail
    Mixed-Use Building with Retail

    1786-1790 Haight Street, San Francisco, CA 94117

    $2,000,000
    5,340 sqft 0.06 AC lot

    Street-level café and wine bar anchors four one-bedroom apartments above.

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    Four-Unit Residential Property
    Four-Unit Residential Property

    477 Burnett Avenue, San Francisco, CA 94131

    $1,998,000
    4,047 sqft 0.07 AC lot

    Four-unit residential property with garage parking and multiple bedrooms and bathrooms across a flexible configuration.

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    Four-Unit Residential Building
    Four-Unit Residential Building

    835 Fremont St, Menlo Park, CA 94025

    $2,988,000
    2,162 sqft 0.13 AC lot

    Updated apartments include shared laundry, carport parking with storage, and a private outdoor area.

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    Permitted Residential Development Site
    Permitted Residential Development Site

    930 Baker Street, San Francisco, CA 94115

    $2,995,000
    8,000 sqft

    Fully permitted, shovel-ready street-to-street lot with approved plans for a new residential building of up to four units.

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    Townhouse-Style Quadplex
    Townhouse-Style Quadplex

    324 Susie Way, South San Francisco, CA 94080

    $1,725,000
    4,767 sqft 0.08 AC lot

    Four separately configured residences with attached garage spaces and recent exterior and interior improvements.

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    4-Unit Apartment Building
    4-Unit Apartment Building

    131 Russia Avenue, San Francisco, CA 94112

    $1,595,000
    3,900 sqft

    Four apartments are arranged above a garage with tenant storage below.

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    Corner Mixed-Use Property
    Corner Mixed-Use Property

    3697-3699 Mission Street, San Francisco, CA 94110

    $1,895,000
    3,750 sqft

    Four residential units accompany ground-floor commercial space with separately metered gas and electric service.

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    Mixed-Use Building with Ground-Floor Retail
    Mixed-Use Building with Ground-Floor Retail

    577 Laurel St, San Carlos, CA 94070

    $4,200,000
    5,554 sqft

    Five-unit mixed-use property with four residential units and prominent ground-floor commercial frontage.

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    Remodeled 4-Unit Multifamily Building
    Remodeled 4-Unit Multifamily Building

    519 Natoma Street, San Francisco, CA 94103

    $1,598,000
    3,030 sqft

    A well-maintained fourplex with remodeled one-bedroom units, tenant occupancy, and a large three-car garage.

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    Mixed-Use Property with Retail
    Mixed-Use Property with Retail

    256167 El Camino Real, Redwood City, CA 94061

    $4,000,000
    6,385 sqft

    Two ground-floor retail/commercial spaces plus four residential units with 13 on-site parking spaces and access from two streets.

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    Updated Quadplex with Four Units
    Updated Quadplex with Four Units

    2804 Curtis Avenue, Redwood City, CA 94063

    $1,618,000
    2,080 sqft 0.11 AC lot

    Select improvements include kitchen cabinets, water heaters, windows, and exterior paint, with parking on site.

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    Well-Maintained Four-Unit Apartment
    Well-Maintained Four-Unit Apartment

    San Carlos, CA 94070

    $2,120,000
    0.17 AC lot

    Four one-bedroom, one-bath units with enclosed patios or wood decks, plus coin-operated laundry and covered parking.

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    Vacant Four-Unit Apartment Building
    Vacant Four-Unit Apartment Building

    1414 Taraval Street, San Francisco, CA 94116

    $2,300,000
    3,900 sqft

    Four vacant two-bedroom residences support immediate leasing or partial owner occupancy.

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    Occupied Fourplex With Covered Parking
    Occupied Fourplex With Covered Parking

    414 E 16th AVE, San Mateo, CA 94402

    $1,900,000

    Two-story San Mateo asset with studio and one-bedroom units, on-site laundry, and dual-paned windows.

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    Four-Unit Two-Building Quadplex
    Four-Unit Two-Building Quadplex

    358-360 Vallejo Street, San Francisco, CA 94133

    $2,400,000

    Two larger flats occupy the front building, while two smaller units are located in a separate rear structure.

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    4-Unit Residential Building with Garage
    4-Unit Residential Building with Garage

    4918 California Street, San Francisco, CA 94118

    $2,295,000

    Four two-bedroom residences include a renovated vacant unit with in-unit laundry and parking.

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    Four-Unit Residential Building
    Four-Unit Residential Building

    1012 Page St, San Francisco, CA 94117

    $2,199,000
    3,780 sqft

    Fully leased four-unit building offered for sale.

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    Four-Unit Multifamily Property
    Four-Unit Multifamily Property

    830 UNIVERSITY DR, Menlo Park, CA 94025

    Contact for pricing
    4,168 sqft

    Multifamily property with R3000 zoning and a four-unit configuration.

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    Quadplex with Private Outdoor Space
    Quadplex with Private Outdoor Space

    444 Villa TER, San Mateo, CA 94401

    $2,495,000
    0.17 AC lot

    Four residences feature two bedrooms, one bath, and individual outdoor areas, with select parking and recent property improvements.

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    Four-Unit Apartment Building
    Four-Unit Apartment Building

    2916 Curtis Ave, Redwood City, CA 94063

    $2,030,000

    Four-unit residential income property with three 2-bedroom units and one 1-bedroom unit.

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    Mixed-Use Four-Unit with Restaurant
    Mixed-Use Four-Unit with Restaurant

    2735-2737 Hyde Street, San Francisco, CA 94109

    $2,850,000

    Four residential units above a fully built-out restaurant, with Type I hood, ADA access, and a large rear garden.

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    San Mateo County, CA Quadplexes Market Trends and Statistics

    Explore 44 quadplexes for sale in San Mateo County, CA, showcased through 44 active listings on our real estate platform. These investment opportunities span a total of 78,150 square feet of properties for sale, with an estimated market value of $91,601,000.

    Sale prices for four-unit buildings in San Mateo County, CA start at $1,199,000, averaging $2,290,025, and reaching up to $4,200,000 — 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 San Mateo County Real Estate Agencies

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

    Keller Williams Peninsula Estates
    1430 Howard Avenue Burlingame, CA 94010
    Phone: 16506273700
    www.KWPeninsulaEstates.com
    Re/Max Prestigious Properties
    2811 14th Ave San Francisco, CA 94127
    Phone: 14155643776
    prestigiousproperties11.california.remax.com/
    Capital Realty Group
    1200 Howard Avenue Suite 204 Burlingame, CA 94010
    Phone: 16503420373
    www.capitalrealtygrp.com
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