Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Garden-Style Apartment Building Title is generated by Realmo AI

    20607 Congress Way, Castro Valley, CA 94546

    View on Map
    Claim this Listing
    New
    For Sale
    $3,600,000

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

    Type:Multifamily
    Added:
    Jun 3, 2026
    Days on Market:
    3
    Last Refresh:
    Jun 3 at 9:10 pm

    Property Features for 20607 Congress Way

    General Information

    Standard status
    Active
    Property subtype
    Multifamily

    Building Details

    Year Built
    1956

    We can help!

    Listing Contact
    Grant Chappell
    Grant Chappell

    Listing agent Grant Chappell License #CalDRE #01700439

    Listing office NAI Northern California - HQ

    Listing date Jun 3, 2026

    Source Naiglobal

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of NAI Northern California - HQ

    HighLights

    • Well‑maintained low‑rise building built in 1956
    • 15‑unit residential income property
    • Upgraded electrical for the 15 units

    Overview

    Built in 1956, this well-maintained low-rise/garden-style apartment building offers a residential income configuration consisting of 15 units. The property includes upgraded electrical, supporting day-to-day operations and ongoing building maintenance.

    Located in the Castro Valley area, the asset is presented as a long-term holding option for garden investors seeking a straightforward multifamily structure. The marketing materials emphasize the building’s condition and its fit for investors focused on steady, income-oriented ownership.

    For prospective buyers, the combination of a 15-unit setup and upgraded electrical can be a practical starting point for underwriting and acquisition planning. The property is positioned for investors looking for a managed apartment asset in the Castro Valley area, with a focus on retaining a well-kept existing building as part of a broader portfolio strategy.
    Location Intelligence

    Current Use by Public Records

    Apartment buildings

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Castro Valley
    County
    Alameda
    State
    California
    Longitude
    -122.0873236
    Latitude
    37.6957535

    Nearby Similar for Sale

    • $1,249,000
      2,700 SF

      Updated Duplex Homes on One Lot

      Own two fully renovated residences on one expansive lot with substantial utility and interior upgrades.
      3675 Christensen Ln, Castro Valley, CA 94546
      View Details
    • $3,125,000
      5,334 SF

      Equestrian Estate in Castro Valley

      Luxury equestrian estate on 6.37 acres in Palomares Canyon.
      35671 Palomares Rd, Castro Valley, CA 94552
      View Details
    • $3,125,000
      5,334 SF

      Equestrian Estate in Palomares Canyon

      Luxury equestrian estate on 6.38 acres near Bay Area.
      35671 Palomares Rd, Castro Valley, CA 94552
      View Details
    • $895,000

      Medical Office Near Sutter Hospital

      Medical office building with parking near Sutter Hospital.
      19942 Lake Chabot, Castro Valley, CA 94546-4004
      View Details
    • $895,000
      1,238 SF

      Medical Office Building Near Hospital

      Medical office building with parking near Sutter Hospital.
      19942 Lake Chabot, CASTRO VALLEY, CA 94546
      View Details
    • $943,164
      2,214 SF

      Castro Valley Retail Condos For Sale

      Retail condos in shell condition, customizable space, high visibility location.
      3765 Castro Valley Blvd, Castro Valley, CA
      View Details
    • $2,199,000
      10,191 SF

      Castro Valley Commercial Property

      Commercial property available for sale in Castro Valley, California.
      2805 Castro Valley Blvd, Castro Valley, CA 94546
      View Details
    • $2,199,000
      10,191 SF

      Castro Valley Mixed-Use Opportunity

      Mixed-use building with retail, office, and workshop spaces.
      2805 Castro Valley Blvd, CASTRO VALLEY, CA 94546
      View Details
    • $850,000
      402 SF

      Castro Valley Office Building

      Well-located office building in Castro Valley with high visibility.
      19693 REDWOOD Road, Castro Valley, CA 94546
      View Details
    • Contact for pricing
      16,856 SF

      Castro Valley Multifamily Investment Opportunity

      20-unit apartment community in Castro Valley, built in 1965.
      20324 Forest Ave, Castro Valley, CA 94546
      View Details
    • $240,000
      455 SF

      Castro Valley Commercial Property

      Commercial property available for sale in Castro Valley, California.
      19837 Lake Chabot Rd, Castro Valley, CA 94546
      View Details
    • $6,150,000
      16,856 SF

      Castro Valley Warehouse For Sale

      16,856 SF warehouse available in Castro Valley, California.
      20324 Forest Avenue, CASTRO VALLEY, CA 94546
      View Details

    FAQs

    What type of property is this?
    Apartment building - Well-maintained low-rise building with upgraded electrical for a 15-unit residential income portfolio.
    Where is this apartment building located?
    The property is located at 20607 Congress Way Castro Valley, CA.
    What is the asking price?
    The asking price for this property is $3,600,000.
    What are key features of this property?
    This property features: Well‑maintained low‑rise building built in 1956; 15‑unit residential income property; Upgraded electrical for the 15 units
    (415) 246-4314
    We can help!
    Listing Contact
    Grant Chappell
    Grant Chappell
    Real Estate License ID: CalDRE #01700439
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    20607 Congress Way, Castro Valley, CA 94546
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!