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    Castro Valley, CA Office Buildings for Sale

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    San Leandro, CA Hayward, CA San Lorenzo, CA
    Castro Valley Mixed-Use Opportunity
    $2,199,000
    10,191 SF
    Castro Valley Mixed-Use Opportunity

    2805 Castro Valley Blvd, Castro Valley, CA 94546

    Mixed-use building with retail, office, and workshop spaces.
    • Prime Location: Castro Valley Boulevard, near Chabot Theatre and Eden Medical Center
    • Mixed‑Use Property: Includes office building, retail storefront, and freestanding workshop
    • High Investment Potential: Enormous Upside Potential!!
    • Huge Lot with Tons of Parking!
    • Features 16 commercial units
    Updated: Sep 25, 2025
    View details
    Castro Valley Office Building
    $850,000
    402 SF
    Castro Valley Office Building

    19693 REDWOOD Road, Castro Valley, CA 94546

    Well-located office building in Castro Valley with high visibility.
    • Prime commercial location on highly visible Redwood Road in Castro Valley.
    • Excellent exposure and accessibility for a variety of professional uses.
    • Easy access to major commuter routes and public transportation.
    • Strategically positioned for strong business visibility throughout the East Bay.
    • Surrounded by established businesses, retail, and dining options.
    Updated: Mar 26
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    Based on your search, we've compiled 64 Potential Opportunities for your consideration. Besides 2 Active listings in Castro Valley, CA, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 54 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Opportunities in Nearby Cities

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

    Hayward Freestanding Office Building
    $615,000
    1,514 SF
    Hayward Freestanding Office Building

    Single-tenant office building in Hayward with functional layout.

    22283 Main St, Hayward, CA 94541

    View details
    Mixed-Use Buildings Near Downtown
    $1,250,000
    2,800 SF
    Mixed-Use Buildings Near Downtown

    Two mixed-use buildings located near downtown San Leandro.

    2242 Washington Ave, San Leandro, CA

    View details
    San Leandro Flex Building For Sale
    Contact for pricing
    6,000 SF
    San Leandro Flex Building For Sale

    6,000 SF flex building with fenced yard near freeway.

    15890 Foothill Blvd, San Leandro, CA 94578

    View details
    Government-Leased Office Property For Sale
    $4,420,000
    19,131 SF
    Government-Leased Office Property For Sale

    Single-tenant office building leased to Alameda County through 2029.

    22225 Foothill Blvd, Hayward, CA 94541

    View details

    Potential Development Sites for Consideration

    Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

    Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

    C3 Retail/Office Building
    $1,900,000
    0.21 Acres
    C3 Retail/Office Building

    C3-zoned building in San Jose with substantial space for retail, office, or mixed-use redevelopment plans.

    702 E Santa Clara ST 206, San Jose, CA 95112

    View details
    Vacant Lot in Downtown Vacaville
    $299,000
    0.14 Acres
    Vacant Lot in Downtown Vacaville

    Buildable lot with approved plans for single-story office building.

    Merchant Street, Vacaville, CA 95688

    View details
    Commercial Land in Modesto
    $2,100,000
    Commercial Land in Modesto

    Commercial land available for sale in Stanislaus County.

    924 G Street, Modesto, CA 95356

    View details
    Commercial Lot with Business Potential
    $395,000
    Commercial Lot with Business Potential

    Commercial lot with business potential in a high-traffic area.

    7118 Bowling Drive, Sacramento, CA 95823

    View details

    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.

    20995 Redwood Rd
    OFFICE BUILDING
    4,239 SF Lot: 0.26 Acres
    Value Estimation by Request

    20995 Redwood Rd, Castro Valley, CA 94546-5919

    View details
    3603 Jamison Way
    OFFICE BUILDING
    3,588 SF Lot: 0.49 Acres
    Estimated value
    $770,000

    3603 Jamison Way, Castro Valley, CA 94546-4303

    View details
    19693 Redwood Rd
    OFFICE BUILDING
    402 SF Lot: 0.13 Acres

    19693 Redwood Rd, Castro Valley, CA 94546-3456

    View details
    20665 Santa Maria Ave
    OFFICE BUILDING
    1,721 SF Lot: 0.13 Acres
    Estimated value
    $1,180,000

    20665 Santa Maria Ave, Castro Valley, CA 94546-5611

    View details
    21977 Redwood Rd
    OFFICE BUILDING
    1,200 SF Lot: 0.11 Acres
    Estimated value
    $635,000

    21977 Redwood Rd, Castro Valley, CA 94546-6437

    View details
    20401 Santa Maria Ave
    OFFICE BUILDING
    1,600 SF Lot: 0.08 Acres
    Estimated value
    $695,000

    20401 Santa Maria Ave, Castro Valley, CA 94546-5609

    View details
    20345 Santa Maria Ave
    OFFICE BUILDING
    2,080 SF Lot: 0.09 Acres
    Value Estimation by Request

    20345 Santa Maria Ave, Castro Valley, CA 94546-4207

    View details
    20880 Baker Rd
    OFFICE BUILDING
    2,976 SF Lot: 0.21 Acres
    Estimated value
    $750,000

    20880 Baker Rd, Castro Valley, CA 94546-5729

    View details
    1700 Norbridge Ave
    OFFICE BUILDING
    2,560 SF Lot: 0.22 Acres
    Value Estimation by Request

    1700 Norbridge Ave, Castro Valley, CA 94546-5700

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    21666 Redwood Rd
    OFFICE BUILDING
    4,218 SF Lot: 0.27 Acres
    Estimated value
    $1,575,000

    21666 Redwood Rd, Castro Valley, CA 94546-6440

    View details
    20990 Redwood Rd
    OFFICE BUILDING
    34,488 SF Lot: 2.83 Acres
    Estimated value
    $10,125,000

    20990 Redwood Rd, Castro Valley, CA 94546-5918

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    21715 Redwood Rd
    OFFICE BUILDING
    1,464 SF Lot: 0.12 Acres
    Estimated value
    $635,000

    21715 Redwood Rd, Castro Valley, CA 94546-6433

    View details
    20880 Redwood Rd
    OFFICE BUILDING
    1,728 SF Lot: 0.17 Acres
    Estimated value
    $760,000

    20880 Redwood Rd, Castro Valley, CA 94546-5916

    View details
    20574 Wisteria St
    OFFICE BUILDING
    2,060 SF Lot: 0.09 Acres
    Estimated value
    $630,000

    20574 Wisteria St, Castro Valley, CA 94546-5523

    View details
    4545 Crow Cyn Pl
    OFFICE BUILDING
    6,621 SF Lot: 1.45 Acres
    Estimated value
    $1,520,000

    4545 Crow Cyn Pl, Castro Valley, CA 94552-4803

    View details
    21060 Redwood Rd
    OFFICE BUILDING
    18,453 SF Lot: 1.11 Acres
    Estimated value
    $4,030,000

    21060 Redwood Rd, Castro Valley, CA 94546-5931

    View details
    20638 Patio Dr
    OFFICE BUILDING
    2,305 SF Lot: 0.20 Acres
    Estimated value
    $530,000

    20638 Patio Dr, Castro Valley, CA 94546-5606

    View details
    3636 Castro Vly Blvd
    OFFICE BUILDING
    6,000 SF Lot: 0.49 Acres
    Estimated value
    $505,000

    3636 Castro Vly Blvd, Castro Valley, CA 94546-4460

    View details
    3553 Castro Vly Blvd
    OFFICE BUILDING
    9,576 SF Lot: 0.46 Acres
    Estimated value
    $2,250,000

    3553 Castro Vly Blvd, Castro Valley, CA 94546-4400

    View details
    21981 Redwood Rd
    OFFICE BUILDING
    1,498 SF Lot: 0.12 Acres
    Estimated value
    $685,000

    21981 Redwood Rd, Castro Valley, CA 94546-6437

    View details
    20416 San Miguel Ave
    OFFICE BUILDING
    1,056 SF Lot: 0.15 Acres
    Estimated value
    $720,000

    20416 San Miguel Ave, Castro Valley, CA 94546-5518

    View details
    3563 Castro Vly Blvd
    OFFICE BUILDING
    8,224 SF Lot: 0.58 Acres
    Estimated value
    $1,890,000

    3563 Castro Vly Blvd, Castro Valley, CA 94546-4401

    View details

    Castro Valley, CA Office Buildings Investment Opportunities Market Analysis

    Explore 56 office buildings for sale in Castro Valley, CA on our real estate platform. These investment opportunities span a total of 10,593 square feet of properties for sale, with an estimated market value of $3,049,000.

    Sale prices for office properties in Castro Valley, CA start at $850,000, averaging $1,524,500, and reaching up to $2,199,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

    List
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    Top Commercial Asset Segments

    Office Units 13
    Office buildings 4
    Creative space 3
    Medical Office Space 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 median listing prices of real estate assets

    Neighborhood Average Price
    94546 $1.5M

    Taxes & Financing

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

    Listings Trend

    Total CRE Area on Market Trend

    Average Price per SF — Residential Income

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