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

    390 Congress St Portland, ME 04101-3514

    • Hotels
    • 75,370 SF
    • 0.23 lot acres
    OFF-MARKET
    Value Estimations
    $1,635,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US42-0357253
    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

    • UNION Restaurant / New American Restaurant / American Restaurant

    Property Details for 390 Congress St

    Year built
    1947
    Lot size
    0.23 lot acres
    Property size
    75,370 SF
    Property type
    Hotels
    APN
    PTLD M:032 B:C001001
    APU
    PTLDM032BC001001

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $1,310,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $1,957,000
      Market price range: $1.07M - $1.96M

    • Alternative Use

      Use
      Estimation
      HOTEL/MOTEL
      $1,425,000
      Current use

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

    Location Insight

    • Map
    • Local Demand
    City
    Portland
    County
    Cumberland
    State
    Maine
    Longitude
    -70.2565
    Latitude
    43.6589
    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
    $440,018
    $837,700
    $29,697,900
    $30,535,600
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $2,085,000
      103,898 SF

      158 Fore St

      HOTEL • 103,898 SF
      158 Fore St, Portland, ME 04101-4811
      View Details
    • Value Estimation
      $2,085,000
      101,619 SF

      9 Ctr St

      HOTEL • 101,619 SF
      9 Ctr St, Portland, ME 04101-4505
      View Details
    • Value Estimation
      $1,745,000
      76,957 SF

      65 Commercial St

      HOTEL • 76,957 SF
      65 Commercial St, Portland, ME 04101-4703
      View Details
    • Value Estimation
      $1,735,000
      80,189 SF

      433 Fore St

      HOTEL • 80,189 SF
      433 Fore St, Portland, ME 04101-4025
      View Details
    • Value Estimation
      $1,635,000
      75,561 SF

      20 Milk St

      HOTEL • 75,561 SF
      20 Milk St, Portland, ME 04101-4128
      View Details
    • Value Estimation
      $3,150,000
      260,061 SF

      157 High St

      HOTEL • 260,061 SF
      157 High St, Portland, ME 04101-4563
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      1.29 Acres

      Portland Tech Park Land Sale

      Prime Maine commercial land, I-95 access.
      0 Technology Park Dr, Portland, ME 04101
      View Details
    • $3,100,000
      8,228 SF

      Mixed-Use Property with Retail

      Mixed-use property featuring retail and luxury studio apartments.
      46 Market St, Portland, ME 04101
      View Details
    • $1,650,000
      2,700 SF

      Munjoy Hill Multi-Family Property

      Three-unit property with ocean views and development potential.
      78 Atlantic St, Portland, ME 04101
      View Details
    • $16,000,000
      85,972 SF

      Portland Office Building For Sale

      85,972 SF office building with redevelopment potential.
      110 Free St, Portland, ME 04101
      View Details
    • $1,499,000
      5,046 SF

      Parkside Apartment Building For Sale

      Nine-unit apartment building in a desirable Portland location.
      75 Sherman St, Portland, ME 04101
      View Details
    • $357,900
      1,193 SF

      Prime Old Port Retail Space

      Portland Waterfront Storefront - $357,900
      383 Commercial St, Portland, ME 04101
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      860 SF

      Prime Portland Executive Office Space

      860 SF Executive Suite - Available Now
      237 Oxford St, Portland, ME 04101
      View Details
    • $60 SF/Yr
      80,189 SF

      Portland Retail Space - Prime Location

      Upscale Bar/Restaurant, 80K+ SF, Portland, ME
      431 Forest, Portland, ME 04101
      View Details
    • $20 SF/Yr
      3,248 SF

      Prime Portland Executive Suites

      1,624 SF Downtown Portland Office Space Available
      100 Silver St, Portland, ME 04101
      View Details
    • $26 SF/Yr
      160,000 SF

      Class A Waterfront Office Space

      Portland's premier office tower; 6,973 SF available.
      12 Mountfort St, Portland, ME 04101
      View Details
    • $27 SF/Yr
      48,912 SF

      Portland Retail Space - 5-Story Building

      Prime Portland retail, 48,912 sq ft, multiple tenants.
      157 Middle St, Portland, ME 04101
      View Details
    • Contact for pricing
      16,000 SF

      Portland Waterfront Industrial Pad Site

      Deep-water berth, 16,000 SF laydown area
      0 Union Wharf, Portland, ME 04101
      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.
    390 Congress St
    Portland, ME 04101-3514
    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.