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    Castro Valley, CA Multifamily Properties for Sale

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    Remodeled Duplex with Garages
    Updated: Aug 31
    Remodeled Duplex with Garages

    20275 Stanton Ave, Castro Valley, CA 94546

    $999,000
    1,680 sqft 0.11 AC lot
    Two 2‑bedroom, 1‑bathroom units
    1,680 square feet on a 0.1148‑acre lot
    Private one‑car garage and driveway parking for each unit
    Front unit recently remodeled with abundant natural light
    Rear unit includes a backyard for gardening or outdoor use
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    Two-Unit Duplex with Detached Garage
    Updated: Jul 24
    Two-Unit Duplex with Detached Garage

    20843 Chester St, Castro Valley, CA 94546

    $1,409,800
    1,590 sqft 0.26 AC lot
    Approximately 1,590 square feet of living area on a 0.26‑acre lot
    Unit mix includes one 2‑bedroom, 1‑bath unit and one 1‑bedroom, 1‑bath unit
    Detached 2‑car garage plus storage improvements
    Alameda County Planner indicates the lot can potentially accommodate 5 Accessory Dwelling Units
    Walking distance to schools, shops, restaurants, BART, and public transportation
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    Remodeled Duplex with Cottage ADU
    Remodeled Duplex with Cottage ADU

    4231 Somerset Ave, Castro Valley, CA 94546

    $999,950
    1,285 sqft 0.12 AC lot

    Updated primary residence with a separately fenced detached cottage, private outdoor space, and flexible additional living accommodations.

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    Eight-Unit Apartment Building
    Eight-Unit Apartment Building

    16298 Foothill Blvd, Castro Valley, CA 94578

    $2,250,000
    10,000 sqft 0.47 AC lot

    Fully occupied residences feature uniform two-bedroom layouts, washer/dryer hookups, and surface parking.

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    Five-Unit Multifamily Property
    Five-Unit Multifamily Property

    2536 Grove Way, Castro Valley, CA 94546

    $1,795,000
    5,718 sqft

    Detached apartment and single-family structures provide a varied residential configuration with dedicated outdoor and parking features.

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    25-Unit Apartment Community
    25-Unit Apartment Community

    16424 Foothill BLVD, Castro Valley, CA 94578

    $8,395,000
    21,526 sqft 1.19 AC lot

    Built in 1988, this 25-unit apartment property features two-bedroom floor plans within a single multifamily building.

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    Multifamily Property with Carport
    Multifamily Property with Carport

    4231 Somerset Ave, Castro Valley, CA 94546

    $999,950
    1,285 sqft

    Residential income property with fenced exterior areas, storage, and an on-site carport.

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    Renovated 62-Unit Apartment Building
    Renovated 62-Unit Apartment Building

    Castro Valley, CA 94546

    $20,000,000
    47,827 sqft 2.92 AC lot

    Apartment community with landscaped outdoor amenities, gated entry, covered parking, and a mix of one-, two-, and three-bedroom units.

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    37-Unit Apartment Community
    37-Unit Apartment Community

    2275 Grove Way, Castro Valley, CA 94546

    $12,480,000
    35,164 sqft 1.56 AC lot

    Apartment community with one- and two-bedroom townhouse-style floor plans and assigned parking for residents.

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    Garden-Style Apartment Building
    Garden-Style Apartment Building

    20607 Congress Way, Castro Valley, CA 94546

    $3,600,000

    Well-maintained low-rise building with upgraded electrical for a 15-unit residential income portfolio.

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    Remodeled Fourplex with Laundry
    Remodeled Fourplex with Laundry

    17500 Ehle St, Castro Valley, CA 94546

    Contact for pricing
    0.15 AC lot

    Four fully renovated units with one available for occupancy, covered parking, storage, and on-site coin-operated laundry.

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    Multifamily Land with Duplex
    Multifamily Land with Duplex

    20785 Baker Rd, Castro Valley, CA 94546

    Contact for pricing
    0.56 AC lot

    Flat development site includes a duplex and cottage near downtown retail amenities.

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    12-Unit Apartment Building
    12-Unit Apartment Building

    2568 Grove Way, Castro Valley, CA 94546

    Contact for pricing

    Every residence includes enclosed carport parking and separate storage space.

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    Updated Quadplex with Garage Parking
    Updated Quadplex with Garage Parking

    20240 Wisteria St, Castro Valley, CA 94546

    Contact for pricing

    Four residential units feature renovated interiors, shared laundry, and on-site garage parking in Castro Valley.

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    Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 14 Active listings in Castro Valley, CA, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 58 Off-Market properties to explore as potential leads

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Corner Lot Triplex with Carports
    Corner Lot Triplex with Carports

    16701 Liberty Street, San Leandro, CA 94578

    $649,000
    1,560 sqft 0.17 AC lot

    Three 1-bedroom, 1-bath units on a corner lot with two carports and in-unit washer and dryer hookups.

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    Duplex with Private Garages
    Duplex with Private Garages

    San Leandro, CA 94578

    $508,000
    1,600 sqft

    San Leandro duplex with two tenant-occupied 2BR/1BA units, each with a private enclosed garage and a large shared yard.

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    6-Unit Apartment Property
    6-Unit Apartment Property

    21393-21397 & 21409-21413 Foothill Blvd, Hayward, CA 94541

    Contact for pricing
    4,219 sqft

    Two contiguous parcels combine residential units with access to transit, downtown amenities, and regional road connections.

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    Three-Home Multifamily Property
    Three-Home Multifamily Property

    21003 Foothill Blvd, Hayward, CA 94541

    $900,000

    Separate bungalow-style residences offer individual utility metering and flexible occupancy arrangements.

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    Off-Market Properties in Castro Valley, CA

    Consider similar Off-Market properties in Castro Valley, CA. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    3437 Somerset Ave
    APARTMENT HOUSE (5+ UNITS)

    3437 Somerset Ave, Castro Valley, CA 94546-3354

    $4,695,000
    Estimated value
    13,053 sqft 0.65 AC lot
    View details
    19979 Wisteria St
    APARTMENT HOUSE (5+ UNITS)

    19979 Wisteria St, Castro Valley, CA 94546-4120

    $250,000
    Estimated value
    2,702 sqft 0.38 AC lot
    View details
    20353 Park Way
    APARTMENT HOUSE (5+ UNITS)

    20353 Park Way, Castro Valley, CA 94546-5330

    $14,995,000
    Estimated value
    45,476 sqft 1.88 AC lot
    View details
    20259 Anita Ave
    APARTMENT HOUSE (5+ UNITS)

    20259 Anita Ave, Castro Valley, CA 94546-4181

    $1,835,000
    Estimated value
    5,888 sqft 0.33 AC lot
    View details
    3322 Wilbeam Ct
    APARTMENT HOUSE (5+ UNITS)

    3322 Wilbeam Ct, Castro Valley, CA 94546-5817

    $2,215,000
    Estimated value
    8,162 sqft 0.81 AC lot
    View details
    19950 Santa Maria Ave
    APARTMENT HOUSE (5+ UNITS)

    19950 Santa Maria Ave, Castro Valley, CA 94546-4279

    $575,000
    Estimated value
    5,950 sqft 0.41 AC lot
    View details
    20224 Frst Ave
    APARTMENT HOUSE (5+ UNITS)

    20224 Frst Ave, Castro Valley, CA 94546-4549

    $3,000,000
    Estimated value
    8,102 sqft 0.66 AC lot
    View details
    19794 Stanton Ave
    APARTMENT HOUSE (5+ UNITS)

    19794 Stanton Ave, Castro Valley, CA 94546-4044

    $4,890,000
    Estimated value
    17,328 sqft 0.93 AC lot
    View details
    4920 Jensen Rd
    APARTMENT HOUSE (5+ UNITS)

    4920 Jensen Rd, Castro Valley, CA 94552-5002

    $285,000
    Estimated value
    7,082 sqft 1.11 AC lot
    View details
    3382 Somerset Ave
    APARTMENT HOUSE (5+ UNITS)

    3382 Somerset Ave, Castro Valley, CA 94546

    $1,240,000
    Estimated value
    8,816 sqft 0.45 AC lot
    View details

    Castro Valley, CA Multifamily Properties Market Trends and Statistics

    Explore 72 multifamily properties for sale in Castro Valley, CA, showcased through 14 active listings on our real estate platform. These investment opportunities span a total of 126,075 square feet of properties for sale, with an estimated market value of $52,928,700.

    Sale prices for multifamily properties in Castro Valley, CA start at $999,000, averaging $5,292,870, and reaching up to $20,000,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Apartment buildings 8
    Duplexes 3
    Quadplexes 2

    Demographics Overview

    Population 60K
    Population Growth (5Y) -1.6%
    Median Household Income $144,714
    College Educated 71.6%

    High-Yield Neighborhoods for Investment

    Identify Castro Valley submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    Castro Valley - 94546 $5.3M
    San Leandro - 94578 $5.3M

    Taxes & Financing

    Tax Rate (average for all types) 1.08%
    Property Tax per SF $22.10 per SF
    Tax Rate vs County Average 0.11 pp below county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Alameda County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in Alameda County

    Retail

    Office

    Residential Income

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    • 94578

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