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

    503 Cass Ave San Antonio, TX 78204-2122

    • Office Properties & Spaces
    • 2,086 SF
    • 0.10 lot acres
    OFF-MARKET
    Value Estimations
    $320,000
    Show details
    Cap Rate Potential
    8.6%
    Office Properties & Spaces
    Location Intelligence
    Property ID
    US82-4790125
    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

    • Office Properties & Spaces

    Property Details for 503 Cass Ave

    Year built
    1935
    Lot size
    0.10 lot acres
    Property size
    2,086 SF
    Property type
    Office Properties & Spaces
    APN
    03878-009-0031
    APU
    38780090031

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $310,000

    • CAP approach

      CAP Return
      Estimation
      6%
      $445,000
      6.5%
      $410,000
      7%
      $380,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $252,000
      Market price range: $75.5k - $499k

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $275,000
      Current use
      RETAIL STORES
      $380,000
      Change: +38% Conversion: Easy
      AUTO REPAIR, GARAGE
      $250,000
      Change: -10% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    San Antonio
    County
    Bexar
    State
    Texas
    Longitude
    -98.5108
    Latitude
    29.4008
    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
    $7,681
    $79,830
    $228,310
    $308,140
    -
    $79,830
    $228,310
    $308,140

    Comparable in this City

    • Value Estimation
      $910,000
      30,249 SF

      1400 Flores St

      OFFICE (GENERAL) • 30,249 SF
      1400 Flores St, San Antonio, TX 78204-1617
      View Details
    • Value Estimation
      $400,000
      2,457 SF

      2718 Flores St

      OFFICE (GENERAL) • 2,457 SF
      2718 Flores St, San Antonio, TX 78204-2915
      View Details
    • Value Estimation
      $485,000
      13,508 SF

      1811 Alamo St

      OFFICE (GENERAL) • 13,508 SF
      1811 Alamo St, San Antonio, TX 78204-1536
      View Details
    • Value Estimation
      $480,000
      11,411 SF

      1819 Flores St

      OFFICE (GENERAL) • 11,411 SF
      1819 Flores St, San Antonio, TX 78204-1930
      View Details
    • Value Estimation
      $980,000
      45,126 SF

      1334 Flores St

      OFFICE (GENERAL) • 45,126 SF
      1334 Flores St, San Antonio, TX 78204-1615
      View Details
    • Value Estimation
      $285,000
      4,487 SF

      624 Mitchell St

      OFFICE (GENERAL) • 4,487 SF
      624 Mitchell St, San Antonio, TX 78204-2730
      View Details

    Similar Nearby for Sale

    • $298,000

      Remodeled Office Building For Sale

      Remodeled office building suitable for medical or general office use.
      105 Drake Ave, San Antonio, TX 78204
      View Details
    • Contact for pricing
      8,045 SF

      Landmark Office Building For Sale

      Efficient, redeveloped office building with high-end finishes and abundant parking.
      719 S Flores St, San Antonio, TX 78204
      View Details
    • Contact for pricing

      San Antonio Warehouse with Offices

      Centrally located warehouse with offices and fenced parking.
      3109 S Flores St, San Antonio, TX 78204
      View Details
    • $1,250,000
      1.01 Acres

      Prime San Antonio Commercial Land

      1.01 Acres, I-2 Zoning, $1.25M
      284 Lachapelle, San Antonio, TX 78204
      View Details
    • $1,995,000

      San Antonio Specialty Property For Sale

      Specialty property available for purchase in San Antonio, Texas.
      338 Madison, San Antonio, TX 78204
      View Details
    • $679,500

      New Condos on South Flores

      Eight new construction condos with flexible live/work spaces.
      2619 S Flores 1, San Antonio, TX 78204
      View Details

    Similar Nearby for Lease

    • $35 SF/Yr
      10,920 SF

      Southtown Retail Opportunity

      Prime San Antonio Retail Space
      227 Cevallos St, San Antonio, TX 78204
      View Details
    • $23 SF/Yr
      24,770 SF

      Southtown Creative Office Space

      9,942 SF Available, King William District
      1518 Alamo St, San Antonio, TX 78204
      View Details
    • $12 SF/Yr
      22,264 SF

      Lone Star District Creative Office

      San Antonio Office Space: 800-19,270 SF
      2600 Flores St, San Antonio, TX 78204
      View Details
    • Contact for pricing
      28,248 SF

      Flores Street Creative Office Space

      Historic San Antonio Office Building, 28,248 SF
      1400 Flores St, San Antonio, TX 78204
      View Details
    • Contact for pricing
      3,869 SF

      Creative Space with Natural Light

      Versatile space suitable for office, creative, studio, warehouse, storage.
      1108 S Flores St, San Antonio, TX 78204
      View Details
    • $27 SF/Yr
      5,600 SF

      Renovated Office Building For Lease

      Move-in ready office building with high-end finishes and abundant parking.
      723 S Flores St, San Antonio, TX 78204
      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.
    503 Cass Ave
    San Antonio, TX 78204-2122
    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.