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    San Mateo County, CA Duplexes for Sale

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    2911 Folsom Street, San Francisco, CA 94110

    $1,500,000
    0.06 AC lot

    Each residence spans a full floor and has a formal dining room.

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    As-Is Duplex
    As-Is Duplex

    420 Harkness Avenue, San Francisco, CA 94134

    $908,900
    1,412 sqft 0.04 AC lot

    Duplex property in San Francisco offered in as-is condition near schools, shopping, dining, freeways, and public transportation.

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    Mixed-Use Duplex with Office Space
    Mixed-Use Duplex with Office Space

    5480 Mission ST, San Francisco, CA 94112

    $999,000
    2,500 sqft 0.05 AC lot

    Two-unit property pairs a two-bedroom residence with a flexible business-oriented unit in a mixed-use configuration.

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    Duplex with Garden Unit
    Duplex with Garden Unit

    2007-2009 Filbert Street, San Francisco, CA 94123

    $6,995,000
    3,771 sqft

    A separate garden residence adds flexible living space, alongside an elevator and garage parking.

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    Two-Flat Duplex with Garage
    Two-Flat Duplex with Garage

    1916 Balboa Street, San Francisco, CA 94121

    $1,888,000
    3,090 sqft 0.06 AC lot

    Both residences are vacant and include individual laundry hookups, formal dining rooms, and two bedrooms.

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    Duplex with Private Patios
    Duplex with Private Patios

    333-335 Crestmont Drive, San Francisco, CA 94131

    $2,495,000
    2,870 sqft 0.09 AC lot

    Two residences offer open interiors, outdoor areas, natural light, and ocean and mountain views in Forest Knolls.

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    Duplex with Bonus Suite
    Duplex with Bonus Suite

    3124-3126 Turk Boulevard, San Francisco, CA 94118

    $2,195,000
    3,580 sqft 0.06 AC lot

    Two full-floor residences are complemented by a separate-entry one-bedroom space, an oversized garage, and shared outdoor areas.

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    Two-Unit Duplex with Garages
    Two-Unit Duplex with Garages

    109 Hobart Avenue, San Mateo, CA 94402

    $2,526,000
    3,686 sqft

    Central forced air and a private rear outdoor area support comfortable residential occupancy.

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    Spanish-Style Duplex with Four-Car Garage
    Spanish-Style Duplex with Four-Car Garage

    494-496 Pacheco Street, San Francisco, CA 94116

    $4,498,000
    5,373 sqft 0.15 AC lot

    Two expansive residences feature flexible layouts, multiple decks, shared garden space, and recent electrical and exterior improvements.

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    Modern Duplex with Private Elevator
    Modern Duplex with Private Elevator

    1281-1283 Greenwich Street, San Francisco, CA 94109

    $19,500,000
    5,456 sqft 0.05 AC lot

    Two-residence property with expansive entertaining areas, wellness amenities, rooftop outdoor space, and landmark views.

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    Mixed-Use Property with Commercial Space
    Mixed-Use Property with Commercial Space

    5680 Mission Street, San Francisco, CA 94112

    $2,100,000
    3,306 sqft

    Ground-floor commercial space is paired with residential units featuring laundry hookups and a two-car garage.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    911 Seville Way, San Mateo, CA 94402

    $1,650,000
    1,720 sqft

    Two-unit residential property near Downtown San Mateo with regional highway access.

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    Two-Unit Duplex with Two-Bedroom Apartments
    Two-Unit Duplex with Two-Bedroom Apartments

    San Francisco, CA 94121

    $1,300,000
    2,448 sqft 0.06 AC lot

    1946 duplex offering two separately metered residential units in San Francisco’s Richmond District.

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    Three-Story Duplex
    Three-Story Duplex

    San Francisco, CA 94102

    $650,000
    3,423 sqft

    Two residential units feature distinct floor plans and abundant natural light in a multifamily property.

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    277 Lisbon Street, San Francisco, CA 94112

    $988,888
    1,652 sqft

    Residential property with attic space, off-street parking, and separate two-bedroom layouts.

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    Duplex with Lower-Level Apartment
    Duplex with Lower-Level Apartment

    15 Shields Street, San Francisco, CA 94132

    $1,345,000
    1,849 sqft

    Recently upgraded systems, two kitchens, and separate yard access serve the two living areas.

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    Two-Unit Duplex with Conversion Plans
    Two-Unit Duplex with Conversion Plans

    1041 Paloma Avenue, Burlingame, CA 94010

    $2,100,000
    2,652 sqft 0.16 AC lot

    Separate residences offer flexible living arrangements, private laundry, a backyard, basement storage, and a carport.

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    Two-Unit Duplex Property
    Two-Unit Duplex Property

    674-676 23rd Avenue, San Francisco, CA 94121

    $4,750,000
    5,296 sqft

    Separate residences and additional ground-level rooms support owner-occupancy, extended-family living, or investment use.

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    Remodeled Two-Unit Duplex
    Remodeled Two-Unit Duplex

    San Bruno, CA 94066

    $1,539,500
    3,340 sqft

    Permitted updates, separate living areas, fireplaces, laundry, and a two-car garage support flexible residential use.

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    Historic Two-Story Duplex
    Historic Two-Story Duplex

    1000 O Neill Street, Belmont, CA 94002

    $2,595,000
    3,023 sqft 0.41 AC lot

    Two-unit, two-story duplex with a detached two-car garage on a large lot, offering flexible parking and storage.

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    Two-Unit Duplex with Backyard
    Two-Unit Duplex with Backyard

    826-828 30Th Ave, San Francisco, CA 94121

    $1,800,000
    3,880 sqft

    1950-built duplex with mature fruit trees and outdoor space in San Francisco’s Outer Richmond.

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    Period Two-Unit Duplex
    Period Two-Unit Duplex

    4163-4165 17th Street, San Francisco, CA 94117

    $1,790,000
    1,835 sqft

    Historic character pairs with an updated upper-level kitchen and bath in a residential San Francisco setting.

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    Two-Unit Duplex with Private Decks
    Two-Unit Duplex with Private Decks

    4007-4009 22nd Street, San Francisco, CA 94114

    $1,495,000
    2,115 sqft

    Two vacant one-bedroom flats include separate outdoor decks, with a garage and rear patio at the lower level.

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    Renovated Duplex with Rooftop Deck
    Renovated Duplex with Rooftop Deck

    312 Lombard ST, San Francisco, CA 94133

    $3,850,000
    2,762 sqft

    Two separately arranged living levels offer flexible space for multigenerational use or occupancy by one household.

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