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

    306 Main St Groton, MA 01450-1234

    • Office buildings
    • 2,602 SF
    • 0.52 lot acres
    OFF-MARKET
    Value Estimations
    $675,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US38-1738128
    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

    • Luth's Family Karate & Harmony Wellness / Karate School
    • Harmony Yoga & Massage / Yoga Studio

    Property Details for 306 Main St

    Year built
    1964
    Construction
    FRAME
    Lot size
    0.52 lot acres
    Property size
    2,602 SF
    Zone code
    B1
    Property type
    Office buildings
    APN
    GROT M:112 B:72 L:
    APU
    GROTM112B72L

    Value Estimations

    based on Realmo’s proprietary methodology

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $683,000
      Market price range: $317k - $915k
      AI Estimate
      $409,000
      Market price range: $180k - $543k

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $570,000
      Current use
      AUTO REPAIR, GARAGE
      $730,000
      Change: +29% Conversion: Difficult
      NEIGHBORHOOD: SHOPPING CENTER
      $720,000
      Change: +27% Conversion: Difficult
      RETAIL STORES
      $700,000
      Change: +23% Conversion: Moderate
      COMMERCIAL (GENERAL)
      $670,000
      Change: +18% Conversion: Easy

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

    Location Insight

    • Map
    • Local Demand
    City
    Groton
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.5772
    Latitude
    42.6138
    CBSA code
    14460
    CBSA name
    BOSTON-CAMBRIDGE-QUINCY, MA-NH 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
    2024
    $7,740
    $262,800
    $250,100
    $512,900
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation by Request
      2,673 SF

      500 Main St

      OFFICE BUILDING • 2,673 SF
      500 Main St, Groton, MA 01450
      View Details
    • Value Estimation
      $1,135,000
      4,755 SF

      112 Boston Rd

      OFFICE BUILDING • 4,755 SF
      112 Boston Rd, Groton, MA 01450-1860
      View Details
    • Value Estimation by Request
      1,176 SF

      48 Boston Rd

      OFFICE BUILDING • 1,176 SF
      48 Boston Rd, Groton, MA 01450-1862
      View Details
    • Value Estimation
      $545,000
      6,643 SF

      201 Main St

      OFFICE BUILDING • 6,643 SF
      201 Main St, Groton, MA 01450-1235
      View Details
    • Value Estimation by Request
      2,520 SF

      6 Main St

      OFFICE BUILDING • 2,520 SF
      6 Main St, Groton, MA 01450-1614
      View Details
    • Value Estimation by Request
      3,928 SF

      274 Main St

      OFFICE BUILDING • 3,928 SF
      274 Main St, Groton, MA 01450-1236
      View Details

    Similar Nearby for Sale

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      Groton Land for Custom Home

      1.92-acre lot for dream home in inviting neighborhood.
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    • $825,000
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      Groton Commercial Development Opportunity

      Prime land parcel in Groton, MA, for diverse development.
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    • $500,000
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      Residential Land in East Groton

      1.84-acre lot for custom home in desirable neighborhood.
      Monarch Path, Groton, MA 01450
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    • $735,000

      Groton Three-Family Investment Opportunity

      Well-maintained three-unit property in Groton with updated features.
      55 West Main St, Groton, MA 01450
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    • $895,000

      Historic Groton Multifamily Investment Opportunity

      Spacious 6-unit multifamily in Groton's historic downtown district.
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    Similar Nearby for Lease

    • $14 SF/Yr
      12,000 SF

      Groton, MA Commercial Space For Lease

      Versatile 12,000 sq ft space, multiple uses.
      134 Main St, Groton, MA 01450
      View Details
    • Contact for pricing
      16,000 SF

      Middlesex County Medical Office Space

      16,000 SF Office Building, 4,000 SF Available
      120 Boston Rd, Groton, MA 01450
      View Details
    • $20 SF/Yr
      13,500 SF

      Groton Medical Office Building

      13,500 SF Medical Office Space Available
      100 Boston Rd, Groton, MA 01450
      View Details
    • Contact for pricing
      7,252 SF

      Freestanding Retail Building in Groton

      Proposed 7,252 SF retail building in a prime location.
      788 Boston Rd, Groton, MA 01450
      View Details
    • $16 SF/Yr

      Commercial Office Space For Rent

      Highly visible office space with highway access and subdivision potential.
      1 Forge Village Rd, Groton, MA 01450
      View Details
    • $600 /Mo

      Groton First Floor Office Space

      First floor office space available in central Groton.
      274 Main St, Groton, MA 01450
      View Details
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    306 Main St
    Groton, MA 01450-1234
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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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