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    Property profile & analytics

    520 18th St Antioch, CA 94509-2744

    • Hotels
    • 16,130 SF
    • 0.73 lot acres
    OFF-MARKET
    Value Estimations
    $490,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US09-0461999
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Hotels

    Property Details for 520 18th St

    Year built
    1957
    Lot size
    0.73 lot acres
    Property size
    16,130 SF
    Property type
    Hotels
    Property subtype
    Motels
    APN
    068-051-058-3
    APU
    680510583

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $480,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $618,000
      Market price range: $466k - $4.44M

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Antioch
    County
    Contra Costa
    State
    California
    Longitude
    -121.796
    Latitude
    38.0045
    CBSA code
    41860
    CBSA name
    SAN FRANCISCO-OAKLAND-FREMONT, CA METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2024
    $25,680
    $303,129
    $1,574,331
    $1,877,460
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $355,000
      6,823 SF

      3120 18th St

      HOTEL/MOTEL • 6,823 SF
      3120 18th St, Antioch, CA 94509-8522
      View Details
    • Value Estimation
      $725,000
      5,103 SF

      3301 Buchanan Rd

      HOTEL/MOTEL • 5,103 SF
      3301 Buchanan Rd, Antioch, CA 94509-4305
      View Details
    • Value Estimation
      $350,000
      0.23 Acres

      1500 10th St

      HOTEL/MOTEL • 0.23 Acres
      1500 10th St, Antioch, CA 94509-1351
      View Details
    • Value Estimation
      $520,000
      11,040 SF

      515 18th St

      HOTEL/MOTEL • 11,040 SF
      515 18th St, Antioch, CA 94509-2743
      View Details
    • Value Estimation
      $700,000
      6,248 SF

      Somersville Rd

      HOTEL/MOTEL • 6,248 SF
      Somersville Rd, Antioch, CA 94509
      View Details
    • Value Estimation
      $735,000
      4,806 SF

      18th St

      HOTEL/MOTEL • 4,806 SF
      18th St, Antioch, CA 94509
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      2.10 Acres

      TK Business Park Land Parcel 3

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    • $2,750,000
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      Buchanan Road Shopping Center

      Antioch, CA Retail Investment Opportunity
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      38 SF

      Antioch Land for Multifamily/Retail

      38.32 AC site near Highway 4 for multifamily/retail development.
      2550 Somersville Rd, Antioch, CA 94509
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    • Contact for pricing
      11 SF

      Retail Center and Development Site

      Retail center anchored by Smart & Final on 11.61 acres.
      2638 Somersville Rd, Antioch, CA 94509
      View Details
    • $420,000
      1,152 SF

      Updated Townhome with Modern Amenities

      Move-in ready townhome featuring modern upgrades and community pool access.
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    • $89,900

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      Spacious 2BR/2BA home in a well-maintained 55+ gated community.
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    Similar Nearby for Lease

    • Contact for pricing
      45,401 SF

      High-Traffic Antioch Retail Space

      Freeway-visible, 2,813 SF available
      1388 Sunset Dr, Antioch, CA 94509
      View Details
    • Contact for pricing
      44,090 SF

      The Crossings Retail Center, Antioch

      Prime Antioch retail space, 13 suites available.
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      View Details
    • Contact for pricing
      1,980 SF

      Retail Space on Lone Tree

      In-line retail space available for rent.
      3640-3670 Lone Tree Way, Antioch, CA 94509
      View Details
    • Contact for pricing
      2,678 SF

      Free Standing Building Near Hospital

      2,678 SF vacant building adjacent to Sutter Delta Hospital.
      3741 Sunset Ln, Antioch, CA 94509
      View Details
    • $3 SF/Yr
      2,263 SF

      Retail Space Available For Rent

      Retail space available for lease in Antioch, California.
      3110 Buchanan Rd, Antioch, CA 94509
      View Details
    • Contact for pricing
      2,194 SF

      Eastwood Shopping Center: Antioch Retail

      Prime Antioch retail space, multiple suites available.
      1806-1896 A St, Antioch, CA 94509
      View Details
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    520 18th St
    Antioch, CA 94509-2744
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    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
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