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    Property profile & analytics

    100 Broadway Alton, IL 62002-6217

    • Office Properties & Spaces
    OFF-MARKET
    Value Estimations
    Cap Rate Potential
    Location Intelligence
    Property ID
    US28-1150818
    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

    • Alton Twp Supervisor / City Government Office
    • Alton Township General Assistance / City Government Office

    Property Details for 100 Broadway

    Property type
    Office Properties & Spaces
    APN
    23-2-07-14-07-202-018-001
    APU
    232071407202018001

    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
    Alton
    County
    Madison
    State
    Illinois
    Longitude
    -90.183901
    Latitude
    38.890105
    CBSA code
    41180
    CBSA name
    ST. LOUIS, MO-IL 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
    $1,236
    $14,060
    $550
    $14,610
    -
    $42,180
    $1,650
    $43,830

    Comparable in this City

    • Value Estimation
      $255,000
      1,620 SF

      544 Broadway

      OFFICE (GENERAL) • 1,620 SF
      544 Broadway, Alton, IL 62002-6303
      View Details
    • Value Estimation
      $270,000
      675 SF

      3505 Fosterburg Rd

      OFFICE (GENERAL) • 675 SF
      3505 Fosterburg Rd, Alton, IL 62002-7317
      View Details
    • Value Estimation
      $220,000
      2,035 SF

      401 Henry St

      OFFICE (GENERAL) • 2,035 SF
      401 Henry St, Alton, IL 62002-2610
      View Details
    • Value Estimation
      $310,000
      2,484 SF

      4119 Humbert Rd

      OFFICE (GENERAL) • 2,484 SF
      4119 Humbert Rd, Alton, IL 62002-7116
      View Details
    • Value Estimation
      $5,245,000
      19,776 SF

      550 Landmarks Blvd

      OFFICE (GENERAL) • 19,776 SF
      550 Landmarks Blvd, Alton, IL 62002-6321
      View Details
    • Value Estimation
      $150,000
      5,074 SF

      3401 Broadway

      OFFICE (GENERAL) • 5,074 SF
      3401 Broadway, Alton, IL 62002-2043
      View Details

    Similar Nearby for Sale

    • $795,000
      27,712 SF

      Alton Executive Office Building

      Prime Alton Office, 27,712 SF, $795K
      200 Center Dr, Alton, IL 62002
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    • $300,000
      6,600 SF

      Alton Mixed-Use Commercial Building

      6,600 SF, 200 Parking Spaces, $300K
      100 Lovejoy Ln, Alton, IL 62002
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    • $300,000
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      Alton Commercial Property on Broadway

      Versatile commercial property with high visibility and redevelopment potential.
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    • $795,000
      27,712 SF

      Alton Office Building For Sale

      Office building with coworking space and expansion potential.
      200 N Center Dr, Alton, IL 62002
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    • Contact for pricing
      221,754 SF

      Alton Medical Campus Opportunity

      Vacant medical campus in historic Alton, Illinois.
      915 E 5Th St, Alton, IL 62002
      View Details
    • $4,000,000
      64,800 SF

      Medical Office Building For Sale

      64,800 SF medical office building on 4.3 acres.
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    Similar Nearby for Lease

    • $700 /Mo
      30,980 SF

      Alton Office Space for Lease

      Office space available in full-service building with parking.
      307 Henry St, Alton, IL 62002
      View Details
    • $950 /Mo
      10,955 SF

      Commercial Space in Alton, IL

      One-story brick building suitable for commercial use in Alton.
      2201 State St, Alton, IL 62002
      View Details
    • $1,800 /Mo
      1,685 SF

      Visible Retail/Office Center For Rent

      Retail/office space with easy access and ample parking available for rent.
      2600 State St, Alton, IL 62002
      View Details
    • $12 SF/Yr
      133,154 SF

      Versatile Industrial Space in Godfrey

      Industrial property with office and shop space for lease.
      4436 Industrial Dr, Alton, IL 62002
      View Details
    • $665 /Mo
      500 SF

      Office Space in Honke Building

      500 SF office space available for lease in Alton.
      307 Henry St, Alton, IL 62002
      View Details
    • $13 SF/Yr

      Alton Office/Retail Space For Rent

      Highly visible office/retail space near Alton Square Mall.
      235 E Center Dr, Alton, IL 62002
      View Details
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    100 Broadway
    Alton, IL 62002-6217
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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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