Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    835 Proton Rd San Antonio, TX 78258

    • Office Properties & Spaces
    • 15,451 SF
    • 3.54 lot acres
    For Lease
    View listing
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US82-3368906
    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

    • Cultivate Behavioral Health & Education / Applied Behavior Analysis Therapist / Mental Health Service
    • Gabriela Robinson / Psychologist
    • Madeleine Mengler / Counselor

    Property Details for 835 Proton Rd

    Year built
    2000
    Lot size
    3.54 lot acres
    Property size
    15,451 SF
    Property type
    Office Properties & Spaces
    APN
    17429-002-0070
    APU
    174290020070

    Value Estimations

    based on Realmo’s proprietary methodology

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $1,445,000
      Current use

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

    Location Insight

    • Map
    • Local Demand
    City
    San Antonio
    County
    Bexar
    State
    Texas
    Longitude
    -98.4819
    Latitude
    29.6126
    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
    $76,898
    $1,761,090
    $1,588,910
    $3,350,000
    -
    $1,761,090
    $1,588,910
    $3,350,000

    Comparable in this City

    • Value Estimation by Request

      24272 Wilderness Oak

      Retail properties
      24272 Wilderness Oak, San Antonio, TX 78258
      View Details
    • Value Estimation by Request
      22,965 SF

      835-845 Proton Rd

      Medical offices • 22,965 SF
      835-845 Proton Rd, San Antonio, TX 78258
      View Details
    • Value Estimation
      $925,000
      14,529 SF

      21756 Hardy Oak Blvd

      OFFICE (GENERAL) • 14,529 SF
      21756 Hardy Oak Blvd, San Antonio, TX 78258
      View Details
    • Value Estimation
      $745,000
      11,934 SF

      18838 Stone Oak Pkwy

      OFFICE (GENERAL) • 11,934 SF
      18838 Stone Oak Pkwy, San Antonio, TX 78258-4113
      View Details
    • Value Estimation
      $610,000
      10,125 SF

      20658 Stone Oak Pkwy

      OFFICE (GENERAL) • 10,125 SF
      20658 Stone Oak Pkwy, San Antonio, TX 78258-7344
      View Details
    • Value Estimation
      $510,000
      7,600 SF

      2710 Treble Crk

      OFFICE (GENERAL) • 7,600 SF
      2710 Treble Crk, San Antonio, TX 78258-4496
      View Details

    Similar Nearby for Sale

    • $2,750,000
      6,600 SF

      Prime Medical Office in San Antonio

      6,600 SF Medical Office, 1.26 Acres
      903 Proton Rd, San Antonio, TX 78258
      View Details
    • $1,395,000
      1.88 Acres

      Tuscany Stone Land: Prime San Antonio Site

      1.877 Acres, Medical/Commercial Potential
      18638 Tuscany Stone, San Antonio, TX 78258
      View Details
    • Contact for pricing
      8,002 SF

      Stone Oak Parkway Office Building

      Office building in San Antonio's Stone Oak submarket.
      20726 Stone Oak Pkwy, San Antonio, TX 78258
      View Details
    • New
      $1,299,000
      3.40 Acres

      Prime Commercial Land in Stone Oak

      Commercial land in Stone Oak area, ideal for development.
      19614 Stone Oak Loop, San Antonio, TX 78258
      View Details
    • Contact for pricing

      Stone Oak Versatile Commercial Space

      Prime location suitable for medical, professional, or retail businesses.
      20742 Stone Oak 105, San Antonio, TX 78258
      View Details
    • Contact for pricing

      Small Office Space Available

      Office space near 1604, suitable for various professionals.
      18834 Stone Oak Pkwy, San Antonio, TX 78258
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      12,780 SF

      Stone Oak Parkway Office Space

      Office space available on Stone Oak Parkway.
      19190 Stone Oak Pkwy, San Antonio, TX 78258
      View Details
    • Contact for pricing
      582 SF

      San Antonio Office Space Available

      Class A office park with easy highway access.
      845 Proton Rd, San Antonio, TX 78258
      View Details
    • $18 SF/Yr
      12,014 SF

      Medical Office Space Available

      Office space for rent near Methodist Stone Oak Hospital.
      116 Gallery Cir, San Antonio, TX 78258
      View Details
    • Contact for pricing
      4,423 SF

      Prime Office Space Available

      Office space for rent with excellent location and amenities.
      19230 Stone Oak Pkwy, San Antonio, TX 78258
      View Details
    • $27 SF/Yr
      4,099 SF

      Class A Office Building

      Four-story office building with high-end finishes and redundant power.
      800 E Sonterra Blvd, San Antonio, TX 78258
      View Details
    • $19 SF/Yr
      6,269 SF

      Medical Office Space For Lease

      Medical office space for lease in Stone Oak area.
      1202 E Sonterra Blvd, San Antonio, TX 78258
      View Details
    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.
    835 Proton Rd
    San Antonio, TX 78258
    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

    Google sign-in failed. Please try again or use another login method.
    Create New Password
    • At least 8 characters
    • Contains both letters and numbers
    • Contains uppercase and lowercase letters
    • At most 32 characters
    • Password required
    • Password reset link has expired. Please request a new one.