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    Property profile & analytics

    1139 Sonterra Blvd San Antonio, TX 78258-4347

    • Hospitals
    • 442,867 SF
    • 37.12 lot acres
    OFF-MARKET
    Value Estimations
    $35,470,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US82-4889166
    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

    • Methodist Hospital Stone Oak Emergency Room / Hospital
    • Fresenius Medical Care at Methodist Stone Oak Hospital / Hospital
    • Cardiology Clinic-San Antonio / Physician
    • Orthopedic Performance Institute / Physician
    • Neurosurgery & Spine Consultants / Physician

    Property Details for 1139 Sonterra Blvd

    Year built
    2007
    Lot size
    37.12 lot acres
    Property size
    442,867 SF
    Property type
    Hospitals
    APN
    19221-054-0010
    APU
    192210540010

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $26,935,000
      Market price range: $12.8M - $42.5M

    • Alternative Use

      Use
      Estimation
      MEDICAL BUILDING
      $30,665,000
      Current use
      AUTO REPAIR, GARAGE
      $52,640,000
      Change: +72% Conversion: Difficult
      RESTAURANT
      $44,970,000
      Change: +47% Conversion: Difficult
      COMMERCIAL (GENERAL)
      $41,355,000
      Change: +35% Conversion: Easy
      OFFICE BUILDING
      $29,375,000
      Change: -4% Conversion: Easy
      APARTMENT HOUSE (5+ UNITS)
      $28,515,000
      Change: -7% Conversion: Moderate
      WAREHOUSE, STORAGE
      $26,100,000
      Change: -15% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    San Antonio
    County
    Bexar
    State
    Texas
    Longitude
    -98.4747
    Latitude
    29.6161
    CBSA code
    41700
    CBSA name
    SAN ANTONIO, TX 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
    2023
    $2,497,476
    $16,960,700
    $91,839,300
    $108,800,000
    -
    $16,960,700
    $91,839,300
    $108,800,000

    Comparable in this City

    • Value Estimation
      $2,080,000
      20,648 SF

      1434 Sonterra Blvd

      HOSPITAL - PRIVATE • 20,648 SF
      1434 Sonterra Blvd, San Antonio, TX 78258-4971
      View Details
    • Value Estimation
      $4,885,000
      54,933 SF

      18600 Hardy Oak Blvd

      HOSPITAL - PRIVATE • 54,933 SF
      18600 Hardy Oak Blvd, San Antonio, TX 78258-4206
      View Details
    • Value Estimation
      $3,425,000
      35,888 SF

      25615 Us Hwy 281st N

      HOSPITAL - PRIVATE • 35,888 SF
      25615 Us Hwy 281st N, San Antonio, TX 78258-7135
      View Details
    • Value Estimation
      $13,980,000
      577,439 SF

      520 Madison Oak Dr

      HOSPITAL - PRIVATE • 577,439 SF
      520 Madison Oak Dr, San Antonio, TX 78258-3913
      View Details
    • Value Estimation by Request
      6,204 SF

      123 Stone Oak Loop

      MEDICAL BUILDING • 6,204 SF
      123 Stone Oak Loop, San Antonio, TX 78258-3391
      View Details
    • Value Estimation
      $1,735,000
      39,824 SF

      255 Sonterra Blvd

      MEDICAL BUILDING • 39,824 SF
      255 Sonterra Blvd, San Antonio, TX 78258-4075
      View Details

    Similar Nearby for Sale

    • $6,500,000
      26,782 SF

      Stone Oak Parkway Senior Living

      42-unit senior living facility, San Antonio.
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    • $2,750,000
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      Prime Medical Office in San Antonio

      6,600 SF Medical Office, 1.26 Acres
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      Tuscany Stone Land: Prime San Antonio Site

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      18638 Tuscany Stone, San Antonio, TX 78258
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    • Contact for pricing
      4.00 Acres

      ±4-Acre San Antonio Development Land

      Prime San Antonio commercial land, ideal for diverse uses.
      0 Huebner Rd, San Antonio, TX 78258
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    Similar Nearby for Lease

    • $17 SF/Yr
      30,205 SF

      Sonterra Medical Office Space For Lease

      Prime San Antonio medical office space available.
      1314 Sonterra Blvd, San Antonio, TX 78258
      View Details
    • $35 SF/Yr
      10,000 SF

      US-281 Medical Retail Space For Lease

      Bexar County medical suites available.
      26321 Us Highway 281, San Antonio, TX 78258
      View Details
    • Contact for pricing
      22,965 SF

      Proton Rd Medical Office Space

      San Antonio Medical Office Suites Available
      835-845 Proton Rd, San Antonio, TX 78258
      View Details
    • $24 SF/Yr
      3,210 SF

      Prime Stone Oak Office Space

      3,210 SF Office, San Antonio, TX
      818 Knights Cross Dr, San Antonio, TX 78258
      View Details
    • Contact for pricing
      57,211 SF

      Stoneterra Medical Plaza: San Antonio

      Class A Medical Office Building, San Antonio, TX
      150 Sonterra Blvd, San Antonio, TX 78258
      View Details
    • $19 SF/Yr
      30,556 SF

      Sonterra Blvd Office Building

      Prime San Antonio Office Space. Multiple Tenancy Available.
      335 Sonterra Blvd, San Antonio, TX 78258
      View Details
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    San Antonio, TX 78258-4347
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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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