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    San Diego County, CA Quadplexes for Sale

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    Four-Unit Quadplex with Period Details
    Updated: Oct 13
    Four-Unit Quadplex with Period Details

    3042-48 Broadway, San Diego, CA 92102

    $2,200,000
    3,464 sqft 0.16 AC lot
    Four units: two 2BR/1BA averaging 825 sq. ft. and two 2BR/1BA with offices averaging 907 sq. ft.
    3,464‑square‑foot building on a 0.1614‑acre lot
    Built in 1927; two stories
    Five off‑street parking spaces at the rear
    Coin‑operated laundry room with hookups for double‑stacked laundry
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    Renovated Coastal Quadplex
    Updated: Sep 10
    Renovated Coastal Quadplex

    921-927 Regal Rd., Encinitas, CA 92024

    $3,349,000
    2,845 sqft 0.23 AC lot
    2,845‑square‑foot quadplex on a 0.2294‑acre lot
    R3 zoning in Encinitas, CA
    Renovations and additional construction completed from 2020 to 2025
    ADU additions with newly built residences
    Private enclosed backyards and mature landscaping
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    Renovated Four-Unit Quadplex
    Renovated Four-Unit Quadplex

    312 Brookes Ave, San Diego, CA 92103

    $2,295,000
    2,264 sqft

    Four leased residences combine private laundry, updated interiors, and select outdoor areas and gated parking.

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    4-Unit Multifamily Property
    4-Unit Multifamily Property

    3795 Alabama St, San Diego, CA 92104

    $1,975,000
    2,836 sqft

    A corner-lot residential property offers a mix of one- and two-bedroom floor plans.

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    Renovated Quadplex with ADU
    Renovated Quadplex with ADU

    931-937 Regal Rd., Encinitas, CA 92024

    $3,349,000
    3,045 sqft 0.23 AC lot

    Updated multifamily property with remodeled residences, newly built units, private enclosed yards, and mature landscaping.

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    Renovated Quadplex with ADU
    Renovated Quadplex with ADU

    2104-2110 Dale Street, San Diego, CA 92104

    $2,125,000
    2,972 sqft 0.13 AC lot

    Two-story property includes an additional ADU and newly installed kitchens in four units.

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    Remodeled Quadplex With Gated Access
    Remodeled Quadplex With Gated Access

    764-766 N Grape St, Escondido, CA 92025

    $1,395,000
    2,042 sqft 0.17 AC lot

    Four updated residences offer flexible layouts, individual outdoor areas, and off-street parking.

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    4-Unit Two-Story Quadplex
    4-Unit Two-Story Quadplex

    235 41 Daisy Ave, Imperial Beach, CA 91932

    $1,399,000
    2,772 sqft 0.11 AC lot

    Two residences are occupied, while the remaining units offer room to refresh the property’s rental offering.

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    Quadplex with Covered Parking
    Quadplex with Covered Parking

    630 N Juniper Street, Escondido, CA 92025

    $2,099,000
    3,784 sqft 0.23 AC lot

    Four residences are arranged in two buildings, with individual gas and electric meters and sub-metered water.

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    Four-Unit Multifamily Property
    Four-Unit Multifamily Property

    235-41 Daisy Ave, Imperial Beach, CA 91932

    $1,399,000
    0.11 AC lot

    Two of the four residences are occupied and currently produce rental income.

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    Four-Unit Residential Property
    Four-Unit Residential Property

    2027 31 E Ave, National City, CA 91950

    $1,449,000
    3,292 sqft 0.18 AC lot

    Four residences offer a flexible mix of two- and three-bedroom layouts with on-site vehicle parking.

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    Four-Unit Quadplex with Unit Mix
    Four-Unit Quadplex with Unit Mix

    3935-41 Madison Ave, San Diego, CA 92116

    $1,249,000
    0.06 AC lot

    Corner-lot property with full kitchens and washer/dryer hookups in every residence.

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    Remodeled 4-Unit Quadplex
    Remodeled 4-Unit Quadplex

    6979-85 Lisbon St, San Diego, CA 92114

    $1,450,000
    0.09 AC lot

    All four residences are occupied and professionally managed, with remodeled interiors and central heating and air conditioning.

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    Ocean-View 4-Unit Quadplex
    Ocean-View 4-Unit Quadplex

    4768 72 Coronado Ave, San Diego, CA 92107

    $2,795,000
    2,775 sqft

    All four residences have ocean views, remodeled interiors, and access to landscaped outdoor gathering areas.

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    Quadplex Residential Property
    Quadplex Residential Property

    111 W Park, San Ysidro, CA 92173

    $1,200,000
    0.17 AC lot

    Residential structure on a sizable San Ysidro parcel near shopping, dining, schools, transit, and the San Ysidro Port of Entry.

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    Modern 4-Unit Quadplex
    Modern 4-Unit Quadplex

    630 N Juniper Street, Escondido, CA 92025

    $2,099,000
    0.23 AC lot

    Separate buildings provide private outdoor areas, in-unit laundry, and central air conditioning for each residence.

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    Four-Unit Quadplex with Parking
    Four-Unit Quadplex with Parking

    1313 E 9th Street, National City, CA 91950

    $1,050,000
    1,600 sqft 0.25 AC lot

    Four apartments with separate gas and electric meters, on-site parking, and a walkable position near everyday retail and services.

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    4-Unit Quadplex
    4-Unit Quadplex

    4314 18 Banning St, San Diego, CA 92107

    $1,499,000
    2,402 sqft 0.09 AC lot

    A varied residential unit mix and on-site parking support multiple rental configurations.

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    Cottage-Style Fourplex
    Cottage-Style Fourplex

    4225 Central Ave, San Diego, CA 92105

    $1,265,000
    1,990 sqft 0.14 AC lot

    Four-unit residential property with three cottages, a house, and off-street parking in central San Diego.

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    San Diego Multifamily Investment Opportunity
    San Diego Multifamily Investment Opportunity

    4165-71 Epsilon St, San Diego, CA 92113

    $1,320,000
    3,136 sqft

    Gated 4-unit property with stable income and upside potential.

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    4-Unit Apartment Building
    4-Unit Apartment Building

    215 Spruce St, San Diego, CA 92103

    $1,450,000
    1,879 sqft

    Four residences feature vintage interior details, shared outdoor space, and dedicated tenant storage.

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    Craftsman and Modern Quadplex
    Craftsman and Modern Quadplex

    3760-66 Pershing Avenue, San Diego, CA 92104

    $2,395,000
    3,137 sqft 0.14 AC lot

    Four-unit property pairs a 1920s Craftsman bungalow with three never-occupied modern units.

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    Upgraded Apartment Quadplex
    Upgraded Apartment Quadplex

    31-5025 Brighton Ave, San Diego, CA 92107

    $2,159,500
    2,332 sqft 0.16 AC lot

    Updated 1- and 2-bedroom units with four detached garages on a zoned R-4 lot near the beach.

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    Brighton Avenue Apartments Near Beach
    Brighton Avenue Apartments Near Beach

    31 Brighton Ave, San Diego, CA 92107

    $2,159,500
    2,332 sqft 0.16 AC lot

    Updated units near the beach, delivered vacant.

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    San Diego County, CA Quadplexes Market Trends and Statistics

    Explore 84 quadplexes for sale in San Diego County, CA, showcased through 84 active listings on our real estate platform. These investment opportunities span a total of 91,763 square feet of properties for sale, with an estimated market value of $154,381,949.

    Sale prices for four-unit buildings in San Diego County, CA start at $495,000, averaging $1,979,255, and reaching up to $5,000,000 — 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 Diego County Real Estate Agencies

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

    Century 21 Horizon
    4134 Adams Ave., #101 San Diego, CA 92116
    Phone: 16192805888
    www.century21horizon.com
    The Roby Company
    13410 Pomerado Road Poway, CA 92064
    Phone: 18587488002
    www.therobycompany.com
    Coldwell Banker West
    2300 Boswell Road, Suite 100 Chula Vista, CA 91914
    Phone: 16197372126
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