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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    491 Main St Rockland, ME 04841-3336

    • Investment properties
    • 6,067 SF
    • 0.16 lot acres
    OFF-MARKET
    Value Estimations
    $600,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US42-0426186
    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 491 Main St

    Year built
    1912
    Construction
    FRAME
    Lot size
    0.16 lot acres
    Property size
    6,067 SF
    Property type
    Investment properties
    Property subtype
    Live-work space
    APN
    ROCD M:004B L:06000
    APU
    ROCDM004BL06000

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $574,000
      Market price range: $304k - $890k

    • Alternative Use

      Use
      Estimation
      COMMERCIAL (GENERAL)
      $915,000
      Current use

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

    Location Insight

    • Map
    • Local Demand
    City
    Rockland
    County
    Knox
    State
    Maine
    Longitude
    -69.109
    Latitude
    44.1062
    CBSA code
    40500
    CBSA name
    ROCKLAND, ME MICROPOLITAN 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
    $14,467
    $208,700
    $387,400
    $596,100
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $830,000
      7,785 SF

      449 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 7,785 SF
      449 Main St, Rockland, ME 04841-3383
      View Details
    • Value Estimation
      $1,215,000
      17,888 SF

      328 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 17,888 SF
      328 Main St, Rockland, ME 04841-3365
      View Details
    • Value Estimation by Request
      1,536 SF

      359 Broadway

      OFFICE/RESIDENTIAL (MIXED USE) • 1,536 SF
      359 Broadway, Rockland, ME 04841-2350
      View Details
    • Value Estimation
      $785,000
      8,083 SF

      410 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 8,083 SF
      410 Main St, Rockland, ME 04841-3364
      View Details
    • Value Estimation by Request
      1,401 SF

      650 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 1,401 SF
      650 Main St, Rockland, ME 04841-3338
      View Details
    • Value Estimation by Request
      3,383 SF

      23 Summer St

      OFFICE/RESIDENTIAL (MIXED USE) • 3,383 SF
      23 Summer St, Rockland, ME 04841-2958
      View Details

    Similar Nearby for Sale

    • $459,000
      2,556 SF

      Rockland Mixed-Use Commercial Building

      Two-story mixed-use building in downtown Rockland, Maine.
      367 Main St, Rockland, ME 04841
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    • $1,895,000
      5,164 SF

      Downtown Rockland Mixed-Use Property

      Thriving Restaurant & Duplex Investment
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    • $5,300,000
      2.92 Acres

      Rockland Harbor Redevelopment Opportunity

      2.75 acres on Rockland Harbor with redevelopment potential.
      779 Main St, Rockland, ME 04841
      View Details
    • New
      $799,000
      3,937 SF

      Rockland Medical Office Investment Opportunity

      Prime commercial property with established tenants and on-site parking.
      20 Summer St, Rockland, ME 04841
      View Details
    • $1,195,000
      5,304 SF

      Rockland Mixed-Use Investment Opportunity

      Prime Main Street location, six-unit building.
      421-423 Main St St, Rockland, ME 04841
      View Details
    • $999,998
      8,658 SF

      Mixed-Use Building on Main Street

      Corner lot mixed-use building with fully leased retail units.
      375 Main St, Rockland, ME 04841
      View Details

    Similar Nearby for Lease

    • $8 SF/Yr
      6,765 SF

      Prime Rockland Executive Office Space

      6,765 sq ft, 95 parking spaces, high visibility.
      360 Old County Rd, Rockland, ME 04841
      View Details
    • $11 SF/Yr
      1,740 SF

      Retail Space in Harbor Plaza

      High-traffic retail space with national tenants in Rockland, Maine.
      235 Camden Street Ter, Rockland, ME 04841
      View Details
    • $3,500 /Mo
      1,383 SF

      Retail Space on Main Street

      Retail space for lease in Rockland, Maine with 1,383 SF.
      305 Main St, Rockland, ME 04841
      View Details
    • $1,825,000
      13,421 SF

      Mixed-Use Property in Rockland, ME

      13,421± SF mixed-use property on 11.79± acres for sale/lease.
      170 Pleasant St, Rockland, ME 04841
      View Details
    • $11 SF/Yr
      5,688 SF

      Industrial Property in Rockland, Maine

      Industrial property available for rent in Rockland, Maine.
      164 New County Rd, Rockland, ME 04841
      View Details
    • Contact for pricing
      19,000 SF

      Industrial Space in Rockland Park

      2,500 SF flex space with drive-in door.
      12 Moran Dr, Rockland, ME 04841
      View Details
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    491 Main St
    Rockland, ME 04841-3336
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    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
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