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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    521 Charles St Baltimore, MD 21201-5078

    • Office buildings
    • 5,205 SF
    • 0.07 lot acres
    OFF-MARKET
    Value Estimations
    $315,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US40-1256591
    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

    • Paris West Optical / Optician

    Property Details for 521 Charles St

    Year built
    1900
    Construction
    BRICK
    Lot size
    0.07 lot acres
    Property size
    5,205 SF
    Zone code
    OR-2
    Property type
    Office buildings
    APN
    11-11-0552 -031
    APU
    11110552031

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $310,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $314,000
      Market price range: $143k - $775k

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $505,000
      Current use

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

    Location Insight

    • Map
    • Local Demand
    City
    Baltimore
    County
    Baltimore City
    State
    Maryland
    Longitude
    -76.6152
    Latitude
    39.2959
    CBSA code
    12580
    CBSA name
    BALTIMORE-TOWSON, MD 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
    $6,084
    $117,700
    $140,100
    $257,800
    -
    $117,700
    $140,100
    $257,800

    Comparable in this City

    • Value Estimation
      $1,090,000
      87,360 SF

      320 Cathedral St

      OFFICE BUILDING • 87,360 SF
      320 Cathedral St, Baltimore, MD 21201-4421
      View Details
    • Value Estimation by Request
      17,059 SF

      1211 Cathedral St

      OFFICE BUILDING • 17,059 SF
      1211 Cathedral St, Baltimore, MD 21201-5516
      View Details
    • Value Estimation by Request
      5,544 SF

      113 Charles St

      OFFICE BUILDING • 5,544 SF
      113 Charles St, Baltimore, MD 21201-3801
      View Details
    • Value Estimation by Request
      10,152 SF

      5 Mt Vernon Pl

      OFFICE BUILDING • 10,152 SF
      5 Mt Vernon Pl, Baltimore, MD 21201-5103
      View Details
    • Value Estimation by Request
      68,875 SF

      300 Pratt St

      OFFICE BUILDING • 68,875 SF
      300 Pratt St, Baltimore, MD 21201-6504
      View Details
    • Value Estimation by Request
      8,636 SF

      41 Preston St

      OFFICE BUILDING • 8,636 SF
      41 Preston St, Baltimore, MD 21201-5717
      View Details

    Similar Nearby for Sale

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      Baltimore Redevelopment Opportunity

      Value-add redevelopment opportunity near Johns Hopkins University.
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      Baltimore Office Building For Sale

      Office building available for purchase in Baltimore, Maryland.
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      5,872 SF

      Baltimore Office Building For Sale

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      Five-story historic building in downtown Baltimore near Inner Harbor.
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    • Contact for pricing
      24,472 SF

      Mixed-Use Property in South Baltimore

      24,472 SF mixed-use property with redevelopment potential.
      1834 S Charles St, Baltimore, MD 21201
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    • $429,000
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      Lexington Street Retail Opportunity

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    Similar Nearby for Lease

    • $19 SF/Yr
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      Downtown Baltimore Office Building

      Six-story office building with renovated atrium and on-site parking.
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      2,021 SF

      Office and Retail Space Available

      Office and retail spaces in transit-oriented development with parking.
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      View Details
    • Contact for pricing
      866 SF

      Downtown Baltimore Office Space Available

      Strategically located office building in the heart of Downtown Baltimore.
      20 S Charles St, Baltimore, MD 21201
      View Details
    • Contact for pricing
      1,059 SF

      Office Space Available Immediately

      Office space for rent, available immediately in Baltimore, MD.
      1500 N Charles St, Baltimore, MD 21201
      View Details
    • Contact for pricing
      3,317 SF

      Secure Downtown Office Space Available

      Downtown office space with state-of-the-art security features.
      502 S Sharp St, Baltimore, MD 21201
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    • Contact for pricing
      9,786 SF

      Office Space Available For Rent

      Office spaces ranging from 500 to 18,000 SF available.
      1030 N Charles St, Baltimore, MD 21201
      View Details
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    521 Charles St
    Baltimore, MD 21201-5078
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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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