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    Property profile & analytics

    311 Main St Portland, CT 06480-1882

    • Investment properties
    • 10,948 SF
    • 0.48 lot acres
    OFF-MARKET
    Value Estimation
    $375,000
    Last Sale
    Dec 28, 2021
    Location Intelligence
    Property ID
    US15-0677619
    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

    • Investment properties

    Property Details for 311 Main St

    Year built
    1732
    Construction
    FRAME
    Lot size
    0.48 lot acres
    Property size
    10,948 SF
    Zone code
    B3
    Property type
    Investment properties
    Property subtype
    Live-work space
    APN
    PORT M:029 B:0255
    APU
    PORTM029B0255

    Value Estimation

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

    • CAP approach

    • Comparable approach

    • Alternative Use

    Location Insight

    • Map
    • Local Demand
    City
    Portland
    County
    Middlesex
    State
    Connecticut
    Longitude
    -72.6372
    Latitude
    41.5767
    CBSA code
    25540
    CBSA name
    HARTFORD-WEST HARTFORD-EAST HARTFORD, 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
    $7,046
    $65,660
    $151,410
    $217,070
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $210,000
      972 SF

      64 Airline Ave

      OFFICE/RESIDENTIAL (MIXED USE) • 972 SF
      64 Airline Ave, Portland, CT 06480-1943
      View Details
    • Value Estimation
      $255,000
      3,375 SF

      3 Grandview Ter

      OFFICE/RESIDENTIAL (MIXED USE) • 3,375 SF
      3 Grandview Ter, Portland, CT 06480-1912
      View Details
    • Value Estimation
      $430,000
      5,460 SF

      646 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 5,460 SF
      646 Main St, Portland, CT 06480-1134
      View Details
    • Value Estimation
      $230,000
      3,620 SF

      233 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 3,620 SF
      233 Main St, Portland, CT 06480-1858
      View Details
    • Value Estimation
      $280,000
      0.75 Acres

      70 Marlborough St

      OFFICE/RESIDENTIAL (MIXED USE) • 0.75 Acres
      70 Marlborough St, Portland, CT 06480-4819
      View Details
    • Value Estimation
      $315,000
      2.08 Acres

      19 Middle Haddam Rd

      OFFICE/RESIDENTIAL (MIXED USE) • 2.08 Acres
      19 Middle Haddam Rd, Portland, CT 06480-1735
      View Details

    Similar Nearby for Sale

    • $330,000

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      Specialty property available for purchase.
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      Portland Industrial Land - 7.94 Acres

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      Charming 1897 Farmhouse on 2.46 Acres

      Historic farmhouse with barn, outbuilding, and greenhouse on scenic lot.
      171 Bartlett St, Portland, CT 06480
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    • $710,000

      Operational Marina on Connecticut River

      Marina with frontage on Connecticut River and Route 17A.
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      Portland Specialty Property For Sale

      Specialty property available for purchase in Portland, Connecticut.
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    Similar Nearby for Lease

    • Contact for pricing
      9,982 SF

      Retail and Restaurant Space Available

      Retail and restaurant spaces for lease in mixed-use development.
      25 Marlborough St, Portland, CT 06480
      View Details
    • Contact for pricing
      10,242 SF

      Mixed-Use Development Retail Space

      Retail, medical, and office spaces available in new town center.
      69 Marlborough St, Portland, CT 06480
      View Details
    • $4,500 /Mo
      5,000 SF

      Prime Retail/Office Space Available

      5000 sqft retail/office space in high-traffic area.
      143 Marlborough St, Portland, CT 06480
      View Details
    • $1,750 /Mo

      Portland Specialty Property For Rent

      Specialty property available for rent in Portland, Connecticut.
      553 Portland Cobalt Rd, Portland, CT 06480
      View Details
    • Contact for pricing
      2,152 SF

      Mixed-Use Development in Portland, CT

      Commercial spaces for lease in new town center development.
      68 Marlborough St, Portland, CT 06480
      View Details
    • $1,900 /Mo

      Portland Multifamily Property For Rent

      Multifamily property available for rent in Portland, Connecticut.
      945 Glastonbury Tpke, Portland, CT 06480
      View Details
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    311 Main St
    Portland, CT 06480-1882
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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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