Sign Up Successful!
You now have access to more from Realmo!
Property Lookup
    Property Lookup
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    AI Search
    Back to Search
    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    2300 Congress St Portland, ME 04102-1908

    • Office buildings
    • 12,060 SF
    • 1.58 lot acres
    OFF-MARKET
    Value Estimations
    $765,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US42-0199009
    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

    • Merrimack / Addiction Treatment Center
    • Health Care Resource Centers Portland / Addiction Treatment Center
    • Dr. Joseph Py / Psychiatrist
    • Moner Susan E MD / Doctor
    • Peter Kassis / Psychiatrist / Counselor

    Property Details for 2300 Congress St

    Year built
    1972
    Lot size
    1.58 lot acres
    Property size
    12,060 SF
    Property type
    Office buildings
    APN
    PTLD M:237 B:A008001
    APU
    PTLDM237BA008001

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $615,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $920,000
      Market price range: $426k - $1.25M

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

    Location Insight

    • Map
    • Local Demand
    City
    Portland
    County
    Cumberland
    State
    Maine
    Longitude
    -70.3341
    Latitude
    43.6504
    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
    $37,635
    $344,700
    $2,267,000
    $2,611,700
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $425,000
      10,400 SF

      395 Yellowbird Rd

      OFFICE BUILDING • 10,400 SF
      395 Yellowbird Rd, Portland, ME 04102
      View Details
    • Value Estimation
      $440,000
      5,910 SF

      15 Sewall St

      OFFICE BUILDING • 5,910 SF
      15 Sewall St, Portland, ME 04102-2641
      View Details
    • Value Estimation
      $870,000
      30,900 SF

      1600 Congress St

      OFFICE BUILDING • 30,900 SF
      1600 Congress St, Portland, ME 04102-2143
      View Details
    • Value Estimation
      $420,000
      6,416 SF

      1250 Congress St

      OFFICE BUILDING • 6,416 SF
      1250 Congress St, Portland, ME 04102-2161
      View Details
    • Value Estimation
      $1,830,000
      7,928 SF

      2320 Congress St

      OFFICE BUILDING • 7,928 SF
      2320 Congress St, Portland, ME 04102-1908
      View Details
    • Value Estimation
      $810,000
      8,594 SF

      686 Brighton Ave

      OFFICE BUILDING • 8,594 SF
      686 Brighton Ave, Portland, ME 04102-1012
      View Details

    Similar Nearby for Sale

    • $2,220,000
      11,206 SF

      Prime Portland Mixed-Use Property

      West End gem, 11,206 sqft, 31 parking spaces
      57 Neal St, Portland, ME 04102
      View Details
    • $1,799,000
      3,582 SF

      Portland Four-Unit Investment Opportunity

      Charming four-unit property in prime Portland location with parking.
      105 Pine St, Portland, ME 04102
      View Details
    • $275,000
      0.31 Acres

      Serene Portland Land Opportunity

      Build your dream home near trails and downtown Portland.
      Hillcrest Ave, Portland, ME 04102
      View Details
    • $549,000
      0.05 Acres

      Congress Street Commercial Property

      Commercial property on Congress Street with high-traffic and endless potential.
      867 Congress St, Portland, ME 04102
      View Details
    • $1,650,000
      3,842 SF

      Prime West End Investment Opportunity

      Historic Portland property with income potential and flexible zoning.
      15 Pine St, Portland, ME 04102
      View Details
    • $525,000
      1,234 SF

      Well-Maintained Two-Unit Multifamily Property

      Two-unit property in Portland with modern updates and convenient location.
      9 C St, Portland, ME 04102
      View Details

    Similar Nearby for Lease

    • $10 SF/Yr
      242,965 SF

      Portland Executive Office Space

      Modern Portland office, ample parking, I-95 access
      7 Rand Rd, Portland, ME 04102
      View Details
    • $13 SF/Yr
      3,200 SF

      Portland Office Space For Rent

      3,200+/- SF office space in convenient Jetport location.
      406 Yellowbird Rd, Portland, ME 04102
      View Details
    • Contact for pricing
      15,200 SF

      Portland Office Space for Lease

      Prime Portland Office Suites Available Now
      188 State St, Portland, ME 04102
      View Details
    • $20 SF/Yr
      3,988 SF

      New Waterfront Retail/Office Building

      New construction retail and office space on Portland's waterfront.
      266 Commercial St, Portland, ME 04102
      View Details
    • $8 SF/Yr
      4,580 SF

      Portland Office Space for Lease

      Flexible Offices, Coworking & More
      41 Hutchins Dr 1 &, Portland, ME 04102
      View Details
    • $17 SF/Yr
      106,846 SF

      Union Station Plaza: Retail Space

      Prime Retail/Office Space, I-295 Access
      252 St John St, Portland, ME 04102
      View Details
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    2300 Congress St
    Portland, ME 04102-1908
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    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
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Google sign-in failed. Please try again or use another login method.
    Create New Password
    • At least 8 characters
    • Contains both letters and numbers
    • Contains uppercase and lowercase letters
    • At most 32 characters
    • Password required
    • Password reset link has expired. Please request a new one.