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    320 E 18Th St, Unit D Antioch, CA 94509
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    Property profile & analytics

    320 E 18Th St, Unit D, Antioch, CA 94509

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    • Office buildings
    • 4,991 SF
    • 0.30 lot acres
    For Lease
    $990/Mo
    View Listing →
    Office Suite in Central Location For Lease
    $990/Mo
    747 SF

    Office Suite in Central Location

    747 sq ft office suite in a gated building.

    320 E 18th Street #D, Antioch, CA 94509
    View Listing
    Property ID
    US09-0234238
    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.
    Value Estimations
    Cap Rate Potential
    Location Intelligence

    Current Use by Public Records

    • Farmers Insurance - Moore Okeh / Insurance Agency
    • Farmers Insurance Group / Insurance Agency
    • Rudy Cortes Tax Services #2 / Tax Preparation
    • Beauty Secrets By Draka Quality Hair Extensions and More / Hair Salon / Nail Salon
    • Heavenly Hair By Qwivander / Hair Salon / Nail Salon

    Property Details for 320 E 18Th St

    Year built
    1992
    Lot size
    0.30 lot acres
    Property type
    Office buildings
    APN
    068-511-015-7
    APU
    685110157

    Value Estimations

    based on Realmo’s proprietary methodology

    • CAP approach

      CAP Return
      Estimation
      6%
      $1,270,000
      6.5%
      $1,175,000
      7%
      $1,090,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $663,000
      Market price range: $335k - $1.17M

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

    Location Insight

    • Map
    • Local Demand
    City
    Antioch
    County
    Contra Costa
    State
    California
    Longitude
    -121.799
    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
    $7,611
    $276,892
    $388,830
    $665,722
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation by Request
      3,200 SF

      1600 A St

      OFFICE BUILDING
      1600 A St, Antioch, CA 94509-2358
      View Details
    • Value Estimation
      $1,380,000
      8,232 SF

      3800 Delta Fair Blvd

      OFFICE BUILDING
      3800 Delta Fair Blvd, Antioch, CA 94509-4008
      View Details
    • Value Estimation
      $1,685,000
      6,521 SF

      3260 Lone Tree Way

      OFFICE BUILDING
      3260 Lone Tree Way, Antioch, CA 94509-5558
      View Details
    • Value Estimation
      $1,145,000
      5,488 SF

      3711 Sunset Ln

      OFFICE BUILDING
      3711 Sunset Ln, Antioch, CA 94509-6125
      View Details
    • Value Estimation
      $585,000
      4,168 SF

      700 1st St

      OFFICE BUILDING
      700 1st St, Antioch, CA 94509-1109
      View Details
    • Value Estimation by Request
      1,035 SF

      1821 A St

      OFFICE BUILDING
      1821 A St, Antioch, CA 94509-2601
      View Details

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      NNN leased Class A office building with long-term tenant.
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      Free Standing Building Near Hospital

      2,678 SF vacant building adjacent to Sutter Delta Hospital.
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      Free Standing Office Building Investment

      High-quality, fully leased office building with income in place.
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    Similar Nearby for Lease

    • $3,250 /Mo

      Single Story Office Building

      2128 sq ft office building with flexible lease options.
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      754 SF

      Turn-Key Medical Units For Rent

      Medical units for rent near Sutter-Delta Medical Center.
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      1,618 SF

      Turn-Key Medical Units Available

      Medical units for rent near Sutter-Delta Medical Center.
      3725 Lone Tree Way, Antioch, CA 94509
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    • Contact for pricing

      Office Space Available For Lease

      Office space available for lease in Antioch, California.
      3701-3737 Lone Tree Way, Antioch, CA 94509
      View Details
    • Contact for pricing
      747 SF

      Office Suite in Central Location

      747 sq ft office suite in a gated building.
      320 E 18Th St, Antioch, CA 94509
      View Details
    • Contact for pricing
      747 SF

      747 SF Office Suite For Rent

      Office suite for rent with utilities included in central location.
      320 E 18Th St, Antioch, CA 94509
      View Details
    View Listing
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    Antioch, CA 94509
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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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