Add Listing
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

    519 Cass Ave Westmont, IL 60559-1514

    • Office properties & Spaces
    • 19,840 SF
    • 0.92 lot acres
    OFF-MARKET
    Value Estimations
    $2,370,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US28-0468572
    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

    • Dr. Sumit Chawla / Dental Office
    • Natural Therapy / Alternative Medicine Practice / Spa & Massage Center
    • Oral Surgery Solutions, PLLC / Dental Office
    • Rhiannon Michelle Holocombe / Dental Office
    • Sump Pump Gurus / Hardware & Home Improvement / Construction Company

    Property Details for 519 Cass Ave

    Year built
    1986
    Lot size
    0.92 lot acres
    Property size
    19,840 SF
    Zone code
    C
    Property type
    Office properties & Spaces
    APN
    09-03-300-009
    APU
    903300009

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $2,228,000
      Market price range: $2.23M - $5.04M
      AI Estimate
      $1,672,000
      Market price range: $1.30M - $5.09M

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $3,605,000
      Current use
      OFFICE BUILDING
      $3,555,000
      Change: -1% Conversion: Easy

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

    Location Insight

    • Map
    • Local Demand
    City
    Westmont
    County
    Dupage
    State
    Illinois
    Longitude
    -87.9752
    Latitude
    41.809
    CBSA code
    16980
    CBSA name
    CHICAGO-NAPERVILLE-JOLIET, IL-IN-WI 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
    $34,835
    $114,170
    $408,030
    $522,200
    -
    $342,510
    $1,224,090
    $1,566,600

    Comparable in this City

    • Value Estimation by Request
      2,508 SF

      17 Cass Ave

      OFFICE (GENERAL) • 2,508 SF
      17 Cass Ave, Westmont, IL 60559-1983
      View Details
    • Value Estimation
      $3,100,000
      25,351 SF

      825 Cass Ave

      OFFICE (GENERAL) • 25,351 SF
      825 Cass Ave, Westmont, IL 60559-1132
      View Details
    • Value Estimation
      $2,000,000
      9,920 SF

      850 Cass Ave

      OFFICE (GENERAL) • 9,920 SF
      850 Cass Ave, Westmont, IL 60559-1777
      View Details
    • Value Estimation
      $910,000
      5,524 SF

      4112 Cass Ave

      OFFICE (GENERAL) • 5,524 SF
      4112 Cass Ave, Westmont, IL 60559-1312
      View Details
    • Value Estimation by Request
      1,120 SF

      102 Chicago Ave

      OFFICE (GENERAL) • 1,120 SF
      102 Chicago Ave, Westmont, IL 60559-1723
      View Details
    • Value Estimation
      $3,515,000
      24,570 SF

      350 Ogden Ave

      OFFICE (GENERAL) • 24,570 SF
      350 Ogden Ave, Westmont, IL 60559-5534
      View Details

    Similar Nearby for Sale

    • Contact for pricing

      Westmont Multi-Tenant Office Complex

      Three-building office complex with remodeled units and ample parking.
      825 N Cass Ave, Westmont, IL 60559
      View Details
    • Contact for pricing
      3,533 SF

      Westmont Urgent Care Investment Opportunity

      Long-term net lease with annual rental increases in Westmont, IL.
      6320 S Cass Ave, Westmont, IL 60559
      View Details
    • Contact for pricing

      Four-Story Office Building Near Route 83

      74,279 square foot office building with recent renovations.
      900 Oakmont Ln, Westmont, IL 60559
      View Details
    • Contact for pricing

      Westmont Office/Medical Space Available

      Office and medical space available for lease in Westmont.
      801 N Cass Ave, Westmont, IL 60559
      View Details
    • Contact for pricing

      Single-Story Office Park For Sale

      Four-building office park with private entrances and tenant-controlled HVAC.
      740-770 Pasquinelli Dr, Westmont, IL 60559
      View Details
    • Contact for pricing

      Class A Office Building

      Six-story Class A office building with renovated amenities in Westmont, Illinois.
      999 Oakmont Plaza Dr, Westmont, IL 60559
      View Details

    Similar Nearby for Lease

    • Contact for pricing

      Four-Story Office Building For Rent

      117,900 SF office building with atrium, conference center, deli.
      601 Oakmont Ln, Westmont, IL 60559
      View Details
    • Contact for pricing
      4,011 SF

      Westmont Office Space For Rent

      Single-story office space with private entrances and controlled HVAC.
      770 Pasquinelli Dr, Westmont, IL 60559
      View Details
    • Contact for pricing

      Four-Story Office Building For Rent

      74,279 square foot office building in prominent Eastern E-W Corridor.
      900 Oakmont Ln, Westmont, IL 60559
      View Details
    • Contact for pricing
      5,196 SF

      Westmont Office Space For Rent

      6,274 SF office space available for rent in Westmont, IL.
      760 Pasquinelli Dr, Westmont, IL 60559
      View Details
    • Contact for pricing
      6,798 SF

      Westmont Office Space For Rent

      Office suites available with private entrances and 24-hour access.
      710-815 Quail Ridge Dr, Westmont, IL 60559
      View Details
    • Contact for pricing
      2,192 SF

      Westmont Office Space for Lease

      Office space in Westmont with convenient access to expressways.
      100-900 Quail Ridge Dr, Westmont, IL 60559
      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.
    519 Cass Ave
    Westmont, IL 60559-1514
    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.
    Sign Up Successful!
    You now have access to more from Realmo!