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    Property profile & analytics

    811 Cantrell Dr San Antonio, TX 78221

    • Residential income homes
    • 1,496 SF
    For Sale
    View listing
    $200,000
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US82-9310321
    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

    • Residential income homes

    Property Details for 811 Cantrell Dr

    Year built
    1970
    Property size
    1,496 SF
    Property type
    Residential income homes

    Description

    This exceptional investment opportunity presents a fully occupied, two-unit duplex located at 811 Cantrell Dr, San Antonio, Texas 78221. Boasting a total of 1,496 square feet, this property offers a compelling price per square foot of $167.11 and a price per unit of $125,000. Built in 1970 and extensively renovated in 2020, the property is in excellent condition and benefits from a 100% occupancy rate, generating a strong pro-forma NOI of $18,189 and a 7.28% cap rate. The property is classified as Class C multifamily and sits on a single-story building with C-2 zoning, providing significant potential for future diversification and value-add opportunities. Conveniently located in San Antonio's thriving Southside, this duplex enjoys proximity to Texas A&M University, Lackland Air Force Base, Palo Alto College, and an abundance of shopping and dining options. The motivated seller makes this a truly attractive investment prospect for those seeking a turnkey, income-producing asset. This property meets the 1% rule, offering immediate cash flow and a solid return on investment.

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

    • CAP approach

    • Comparable approach

    • Alternative Use

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

    Location Insight

    • Map
    • Local Demand
    City
    San Antonio
    County
    Bexar
    State
    Texas
    Longitude
    -98.51669
    Latitude
    29.3488154

    Comparable in this City

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    • $200,000

      San Antonio Duplex Investment Opportunity

      Fully occupied duplex on corner lot with commercial zoning.
      811 Cantrell Dr, San Antonio, TX 78221
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    • $230,000

      San Antonio Triplex Investment Opportunity

      Three efficiency units, leased, generating immediate income in San Antonio.
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      San Antonio Multifamily Development Opportunity

      Multifamily property with development potential, near universities and amenities.
      1222 W Harding Blvd, San Antonio, TX 78221
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    • New
      $425,000
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      Multifamily Property in San Antonio, TX

      Four-unit multifamily property on a one-acre lot.
      378 E Petaluma Blvd, San Antonio, TX 78221
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    Similar Nearby for Sale

    • $1,400,000
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      San Antonio Apartment Complex

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      347 Ware Blvd, San Antonio, TX 78221
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    • $200,000

      San Antonio Duplex Investment Opportunity

      Fully occupied duplex on corner lot with commercial zoning.
      811 Cantrell Dr, San Antonio, TX 78221
      View Details
    • $300,000
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      San Antonio Multifamily Investment Opportunity

      Multifamily property with duplex and detached unit on 1-acre lot.
      228 W Ansley Blvd, San Antonio, TX 78221
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    • $230,000

      San Antonio Triplex Investment Opportunity

      Three efficiency units, leased, generating immediate income in San Antonio.
      329 Rayburn Dr, San Antonio, TX 78221
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    • $163,000
      1,670 SF

      San Antonio Multifamily Development Opportunity

      Multifamily property with development potential, near universities and amenities.
      1222 W Harding Blvd, San Antonio, TX 78221
      View Details
    • New
      $425,000
      4,090 SF

      Multifamily Property in San Antonio, TX

      Four-unit multifamily property on a one-acre lot.
      378 E Petaluma Blvd, San Antonio, TX 78221
      View Details

    Similar Nearby for Lease

    • $1,050 /Mo

      Charming Duplex with Open Space

      Two-bedroom duplex with amenities near Texas A&M-San Antonio.
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    • $25 SF/Yr
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      Renovated Office Space Available

      Professional office space with recent renovations and high visibility.
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    • Contact for pricing
      58,215 SF

      Mayan Shopping Center: Bexar County

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      Retail Sublease Opportunity

      Retail space available for sublease in a densely populated area.
      3847 Pleasanton Rd, San Antonio, TX 78221
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      Retail Space Near South Park

      Retail spaces available in well-established shopping center near IH-35.
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    • $9 SF/Yr
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      Prime San Antonio Retail Space

      Large Vacant Retail Building, 41,920 SF
      3847 Pleasanton Rd, San Antonio, TX 78221
      View Details
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    San Antonio, TX 78221
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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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