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    Property profile & analytics

    99 Main St South Portland, ME 04106

    • Office buildings
    • 2,069 SF
    • 0.19 lot acres
    OFF-MARKET
    Value Estimation
    $305,000
    Location Intelligence
    Property ID
    US42-0354013
    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

    • Office buildings

    Property Details for 99 Main St

    Year built
    1900
    Construction
    FRAME
    Lot size
    0.19 lot acres
    Property size
    2,069 SF
    Zone code
    Z
    Property type
    Office buildings
    APN
    SPOR M:032 L:032
    APU
    SPORM032L032

    Value Estimation

    by Realmo proprietary methodology Last update: July 3, 2025

    • AI approach

      CAP return
      Estimation
      Estimation
      $295,000

    • CAP approach

      CAP return
      Estimation
      6%
      $305,000
      6.5%
      $340,000
      7%
      $310,000

    • Comparable approach

      Method
      Estimation
      Relative Method
      $295,000
      Geo Method
      $365,000

    • Alternative Use

      Use
      Estimation
      Distribution
      $285,000
      Retail
      $275,000
      Mixed-Use
      $320,000
      Hospitality
      $310,000
      Educational
      $275,000
      Residential Income
      $250,000
      Energy
      $330,000
      Income-Based Land
      $340,000
      Food Service
      $280,000

    Location Insight

    • Map
    • Local Demand
    City
    South Portland
    County
    Cumberland
    State
    Maine
    Longitude
    -70.2872
    Latitude
    43.6363
    CBSA code
    38860
    CBSA name
    PORTLAND-SOUTH PORTLAND-BIDDEFORD, ME 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
    $3,814
    $110,300
    $159,400
    $269,700
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation by Request
      18,740 SF

      39 Wallace Ave

      OFFICE BUILDING • 18,740 SF
      39 Wallace Ave, South Portland, ME 04106-6143
      View Details
    • Value Estimation by Request
      53,624 SF

      65 Gannett Dr

      OFFICE BUILDING • 53,624 SF
      65 Gannett Dr, South Portland, ME 04106-6944
      View Details
    • Value Estimation by Request
      95,457 SF

      600 Sable Oaks Dr

      OFFICE BUILDING • 95,457 SF
      600 Sable Oaks Dr, South Portland, ME 04106-3299
      View Details
    • Value Estimation by Request
      72,336 SF

      225 Gorham Rd

      OFFICE BUILDING • 72,336 SF
      225 Gorham Rd, South Portland, ME 04106-2461
      View Details
    • Value Estimation
      $2,725,000
      15,504 SF

      324 Cummings Rd

      OFFICE BUILDING • 15,504 SF
      324 Cummings Rd, South Portland, ME 04106-3262
      View Details
    • Value Estimation
      $635,000
      3,407 SF

      138 Ocean St

      OFFICE BUILDING • 3,407 SF
      138 Ocean St, South Portland, ME 04106-3652
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      17,071 SF

      South Portland Medical Office Building

      17,071 SF Medical Office, Ample Parking
      244 Western Ave, South Portland, ME 04106
      View Details
    • $4,327,286
      7,424 SF

      South Portland Medical Investment Opportunity

      Long-term NNN investment with a strong healthcare tenant.
      254 Western Ave, South Portland, ME 04106
      View Details
    • $560,000
      4,370 SF

      Mixed-Use Property in South Portland

      Mixed-use property with office spaces and apartment in South Portland.
      854 Broadway, South Portland, ME 04106
      View Details
    • $560,000
      0.23 Acres

      Mixed-Use Property in South Portland

      Mixed-use property with office spaces and apartment in South Portland.
      854 Broadway, South Portland, ME 04106
      View Details
    • $699,000
      2,096 SF

      South Portland Triplex with Garage

      Gutted three-unit building in Ferry Village near Willard Beach.
      73 High Street Ct, Portland, ME 04106
      View Details
    • $4,650,000
      20,700 SF

      Retail Building Near Maine Mall

      20,700 SF retail building on 2 acres for sale.
      130 Western Ave, South Portland, ME 04106
      View Details

    Similar Nearby for Lease

    • $14 SF/Yr
      36,972 SF

      75 John Roberts Road Office Space

      Class A Office, 8,114 SF Available
      75 John Roberts Rd, South Portland, ME 04106
      View Details
    • $13 SF/Yr
      4,646 SF

      Class A Office/Medical Building

      Class A office/medical building with suites available for lease.
      175 Running Hill Rd, South Portland, ME 04106
      View Details
    • $14 SF/Yr
      104,752 SF

      Class A Office Space Available

      Class A office space for lease in South Portland.
      2 Gannett Dr, South Portland, ME 04106
      View Details
    • $18 SF/Yr
      10,308 SF

      Renovated Office Space in Portland

      10,308±SF office suite in iconic mixed-use building for lease.
      55-75 Washington Ave, Portland, ME 04106
      View Details
    • $14 SF/Yr
      4,040 SF

      Corner Office Suite For Rent

      4,040± SF office suite with ample free parking.
      202 Gannett Dr, South Portland, ME 04106
      View Details
    • $1,800 /Mo
      1,350 SF

      Turnkey Dental Suite For Lease

      Turnkey dental suite with furniture, fixtures, and equipment in place.
      94 Washington Ave, Portland, ME 04106
      View Details
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    99 Main St
    South Portland, ME 04106
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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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