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    San Mateo County, CA Duplexes for Sale

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    Two-Unit Duplex
    Two-Unit Duplex

    71 Santa Marina Street, San Francisco, CA 94110

    $895,000
    1,751 sqft

    Two-level configuration includes one occupied residence and one vacant residence.

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

    1440 Valota RD, Redwood City, CA 94061

    $1,500,000
    0.21 AC lot

    Both homes have laundry hookups, and the rear residence includes a deck and fenced yard.

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    Edwardian Duplex with Garden
    Edwardian Duplex with Garden

    366368 29th Ave, San Francisco, CA 94121

    $1,998,000
    3,318 sqft

    Two tenant-occupied flats combine period character with garage parking, storage areas, and access to a landscaped rear garden.

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    Classic Edwardian Duplex
    Classic Edwardian Duplex

    366-368 29th AVE, San Francisco, CA 94121

    $1,998,000
    3,318 sqft

    Two tenant-occupied flats offer period character, garage parking, storage areas, and bright sunrooms.

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    2-Unit Duplex with Garage
    2-Unit Duplex with Garage

    1916 Balboa St, San Francisco, CA 94121

    $1,888,000
    3,090 sqft

    Both residences are vacant and have individual laundry hookups.

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    Vacant Mixed-Use Building with Development Potential
    Vacant Mixed-Use Building with Development Potential

    2976 Mission Street, San Francisco, CA 94110

    $1,500,000
    3,490 sqft 0.07 AC lot

    Ready-to-use 4-unit building with development potential near 24th Street.

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    Victorian Duplex with Rear Yard
    Victorian Duplex with Rear Yard

    1056-1058 Treat Avenue, San Francisco, CA 94110

    $1,125,000
    2,296 sqft

    Two full-floor residences combine period character, private outdoor space, and convenient access to neighborhood amenities and transit.

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    Duplex Rebuild Project
    Duplex Rebuild Project

    572 San Jose AVE, San Francisco, CA 94110

    $1,100,000
    2,400 sqft

    San Francisco DBI-approved drawings and permits prepared for a two-unit residential redevelopment.

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    Updated Duplex
    Updated Duplex

    1228 Maple ST, San Mateo, CA 94402

    $1,895,000
    2,356 sqft

    The front residence has refreshed kitchen and bath finishes, and both homes include laundry rooms and one-car garages.

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    Duplex with Two Remodeled Homes
    Duplex with Two Remodeled Homes

    418 Baden Avenue, South San Francisco, CA 94080

    $1,588,000
    2,279 sqft

    Two updated residences share one lot with separate living areas, garages, and connected outdoor space.

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    Three-Level Duplex Requiring Rehabilitation
    Three-Level Duplex Requiring Rehabilitation

    922 Vallejo ST, San Francisco, CA 94133

    $1,495,000
    3,660 sqft 0.06 AC lot

    Vacant two-unit building offering a substantial renovation project in a San Francisco location spanning Russian Hill and North Beach.

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    Remodeled Victorian Duplex Property
    Remodeled Victorian Duplex Property

    53-55 Sanchez Street, San Francisco, CA 94114

    $5,195,000
    2,376 sqft

    Features four bedrooms, two bathrooms, a lower-level flex area, and a private rear yard.

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    Mixed-Use Building With Retail
    Mixed-Use Building With Retail

    201-203 S Delaware Street, San Mateo, CA 94401

    Contact for pricing
    5,075 sqft 0.13 AC lot

    Two street-facing retail spaces complement two upstairs apartments in a manageable mixed-use configuration.

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    Victorian Two-Unit Residential Property
    Victorian Two-Unit Residential Property

    2028-2030 Pierce Street, San Francisco, CA 94115

    $3,000,000
    2,956 sqft

    Two-unit Victorian building with double parlors and eat-in kitchens, offering a 3-bedroom and 2-bedroom flat.

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    Edwardian Duplex with Rear Patio
    Edwardian Duplex with Rear Patio

    420-422 Linden Street, San Francisco, CA 94102

    $1,698,000
    2,200 sqft

    Vacant two-unit property with an updated kitchen, period details, and direct access to a rear patio.

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    Duplex with Separate Garages
    Duplex with Separate Garages

    449 Angus Avenue, San Bruno, CA 94066

    $1,199,000
    1,220 sqft

    Two separately accessed units include private rear yards and individual garages.

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

    1224 Stockton Street, San Francisco, CA 94133

    $2,790,000
    6,576 sqft

    Ground-floor retail with mezzanine and basement storage, plus two remodeled 2-bed, 2-bath residential units above.

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    Mission Street Mixed-Use Building
    Mission Street Mixed-Use Building

    Mission Street, San Francisco, CA 94112

    $950,000
    3,200 sqft 0.06 AC lot

    Three-unit mixed-use building in vibrant Excelsior District.

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    Duplex With Side-By-Side Garage
    Duplex With Side-By-Side Garage

    1630 Oakdale Avenue, San Francisco, CA 94124

    $1,628,000
    2,750 sqft

    Duplex with two 3-bedroom, 2-bath units plus a ground-floor bonus room with its own bath and remodeled interiors.

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    Two-Unit Deco Duplex
    Two-Unit Deco Duplex

    301 San Jose Ave, San Francisco, CA 94110

    $765,000
    1,750 sqft

    Two residences offer period details, window exposure on three sides, and garage space with storage and laundry.

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    Light-Filled Duplex with Detached Garage
    Light-Filled Duplex with Detached Garage

    San Francisco, CA 94122

    $2,513,000
    0.08 AC lot

    Vacant units provide flexible options for owner occupancy, extended living, or rental use.

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    Updated Single-Story Duplex
    Updated Single-Story Duplex

    772-774 Walnut Street, San Bruno, CA 94066

    Contact for pricing
    1,362 sqft 0.06 AC lot

    Two remodeled residences offer in-unit laundry, enclosed garages, fenced outdoor areas, and tenant-paid utilities.

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    Tenant-Occupied Duplex
    Tenant-Occupied Duplex

    44 Patton Street, San Francisco, CA 94110

    $850,000
    2,200 sqft

    Two residential units offer spacious layouts with separate kitchens, defined living areas, and ample closet space.

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    Duplex with Detached Rear Residence
    Duplex with Detached Rear Residence

    Menlo Park, CA 94025

    $2,750,000
    0.14 AC lot

    Front and rear residences offer separate layouts with individual electric and gas meters.

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