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    San Mateo County, CA Quadplexes for Sale

    12 results
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    San Mateo Fourplex Investment Opportunity
    $2,495,000
    3,607 SF

    San Mateo Fourplex Investment Opportunity

    444 Villa TER, San Mateo, CA 94401

    Well-maintained fourplex in prime San Mateo location near top schools.

    • Prime San Mateo location near top‑rated schools.
    • Excellent investment opportunity with long‑term tenants and low vacancy rate.
    • Each unit has private outdoor space with decks or yards.
    • Unit 3 features remodeled kitchen and bath.
    • Recent upgrades include roof work, deck waterproofing, exterior paint, new doors, and rebuilt carport.
    Updated: Dec 8, 2025
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    Mixed-Use Property with Income Potential
    $995,000
    0.06 Acres

    Mixed-Use Property with Income Potential

    345-347 Brazil Avenue, San Francisco, CA 94112

    Multi-unit, mixed-use property in San Francisco with income potential.

    • Multi‑unit property with mixed‑use potential.
    • Corner lot location.
    • Includes a ground floor commercial unit currently rented to a laundromat.
    • Features a large 2‑3 bedroom upstairs flat with hardwood floors and a fireplace.
    • Detached garage with one parking space and an in‑law apartment.
    Updated: Oct 3, 2025
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    Inner Richmond Multifamily Value-Add Opportunity
    $2,800,000
    4,080 SF

    Inner Richmond Multifamily Value-Add Opportunity

    Four-unit building with income potential in a prime location.

    4829 California Street, San Francisco, CA 94118
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    San Francisco Multifamily Investment Opportunity
    $1,749,000
    2,880 SF

    San Francisco Multifamily Investment Opportunity

    Two-story building near 24th & Valencia Streets with units and parking.

    1294 Guerrero Street, San Francisco, CA 94110
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    San Francisco Multifamily Near Dolores Park
    $1,600,000
    3,140 SF

    San Francisco Multifamily Near Dolores Park

    Multifamily property near Dolores Park with strong cash flow.

    3451 22nd St, San Francisco, CA 94110
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    Haight-Ashbury Quadruplex with In-Law Unit
    $2,575,000
    4,439 SF

    Haight-Ashbury Quadruplex with In-Law Unit

    Four units plus legal in-law in prime location.

    905 Ashbury, San Francisco, CA 94117
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    Inner Sunset Mixed-Use Investment
    $2,299,000
    4,881 SF

    Inner Sunset Mixed-Use Investment

    Four-unit mixed-use property in San Francisco's Inner Sunset District.

    1377-1379 9TH Avenue, San Francisco, CA 94122
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    Redwood City Four-Unit Apartment Property
    $1,628,000
    3,200 SF

    Redwood City Four-Unit Apartment Property

    Four-unit apartment in Redwood City with attractive unit mix.

    545 Hampshire Ave, Redwood City, CA 94063
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    Turnkey Multifamily Property in San Mateo
    $2,148,000
    0.17 Acres

    Turnkey Multifamily Property in San Mateo

    Four-unit property in a desirable Silicon Valley location.

    1850 El Parque Ct, San Mateo, CA 94403
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    Outer Sunset Multifamily Investment Opportunity
    $1,525,000
    3,589 SF

    Outer Sunset Multifamily Investment Opportunity

    Well-maintained four-unit property near Ocean Beach and Golden Gate Park.

    1801 38th Ave, San Francisco, CA 94122
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    Vacant Mixed-Use Building with Development Potential
    $1,600,000
    3,490 SF

    Vacant Mixed-Use Building with Development Potential

    Four-unit mixed-use building with development potential near 24th Street.

    San Francisco, CA 94110
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    Forest Knolls Fourplex Investment Opportunity
    $2,200,000

    Forest Knolls Fourplex Investment Opportunity

    Well-maintained fourplex in desirable San Francisco location near key amenities.

    132 Locksley Ave, San Francisco, CA 94122
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    Based on your search, we've compiled 12 Potential Opportunities for your consideration. Besides 12 Active listings in San Mateo County, CA, we suggest exploring several alternatives:

    San Mateo County, CA Quadplexes Investment Opportunities Market Analysis

    Explore 12 quadplexes for sale in San Mateo County, CA, showcased through 12 active listings on our real estate platform. These investment opportunities span a total of 115,538,644 square feet of properties for sale, with an estimated market value of $12,214,000.

    Sale prices for four-unit buildings in San Mateo County, CA start at $995,000, averaging $2,035,666, and reaching up to $2,800,000 — 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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