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    Property profile & analytics

    509 Westport Ave Norwalk, CT 06851-4411

    • Office buildings
    • 14,250 SF
    • 0.71 lot acres
    OFF-MARKET
    Value Estimation
    Location Intelligence
    Property ID
    US15-0813306
    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

    • Dansue Dance Fitness / Dance School / Physical Fitness Program
    • VKDC the Studio / Dance School
    • Valentina Kozlova DCNY / Ballet School
    • Music Theatre of Connecticut / Performing Arts Theater / Drama School

    Property Details for 509 Westport Ave

    Year built
    1968
    Construction
    STEEL FRAME
    Lot size
    0.71 lot acres
    Property size
    14,250 SF
    Zone code
    B2
    Property type
    Office buildings
    APN
    NORW M:5 B:17 L:6
    APU
    NORWM5B17L6

    Value Estimation

    Powered by Realmo proprietary methodology Last update: July 3, 2025

    • CAP approach

    • Comparable approach

    • Alternative Use

    Location Insight

    • Map
    • Local Demand
    City
    Norwalk
    County
    Fairfield
    State
    Connecticut
    Longitude
    -73.3855
    Latitude
    41.1281
    CBSA code
    14860
    CBSA name
    BRIDGEPORT-STAMFORD-NORWALK, CT 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
    $59,764
    $1,187,610
    $1,187,670
    $2,375,280
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation by Request
      21,718 SF

      295 Westport Ave

      OFFICE BUILDING • 21,718 SF
      295 Westport Ave, Norwalk, CT 06851-4333
      View Details
    • Value Estimation by Request
      23,300 SF

      111 Ee Ave

      OFFICE BUILDING • 23,300 SF
      111 Ee Ave, Norwalk, CT 06851-5014
      View Details
    • Value Estimation by Request
      10,724 SF

      162 Ee Ave

      OFFICE BUILDING • 10,724 SF
      162 Ee Ave, Norwalk, CT 06851-5775
      View Details
    • Value Estimation
      $910,000
      4,158 SF

      258 Main St

      OFFICE BUILDING • 4,158 SF
      258 Main St, Norwalk, CT 06851-2748
      View Details
    • Value Estimation
      $315,000
      2,776 SF

      53 Ee Ave

      OFFICE BUILDING • 2,776 SF
      53 Ee Ave, Norwalk, CT 06851-4906
      View Details
    • Value Estimation by Request
      15,483 SF

      120 Ee Ave

      OFFICE BUILDING • 15,483 SF
      120 Ee Ave, Norwalk, CT 06851-5703
      View Details

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    Similar Nearby for Lease

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      55,503 SF

      Norwalk Office Space For Rent

      Class A office building near Merritt 7 train station.
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    • $16 SF/Yr
      1 SF

      Landmark Square: Norwalk Creative Office

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      View Details
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      800 SF

      Norwalk Office Space For Rent

      Office suite available in central Norwalk, immediate occupancy.
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    • $25 SF/Yr
      2,380 SF

      Retail and Office Space Available

      Divisible retail and office spaces for lease with parking.
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      800 SF

      Norwalk Executive Office Space

      800 SF Office Suite Available Now
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    • $26 SF/Yr
      28,000 SF

      Norwalk Office/Retail Space

      Prime Norwalk location, 2,000 sq ft available.
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    Property Visit Statistics

    • Visits by month
      35.7k
    • Visitors by month
      17.8k
    • Avg Time on site
      8 min
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    509 Westport Ave
    Norwalk, CT 06851-4411
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    Realmo Value Estimation

    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.

    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.

    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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