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

    30 Main St Marlborough, MA 01752-3862

    • Investment properties
    • 3,303 SF
    • 0.06 lot acres
    OFF-MARKET
    Value Estimations
    $275,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US38-2427077
    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 30 Main St

    Year built
    1900
    Construction
    FRAME
    Lot size
    0.06 lot acres
    Property size
    3,303 SF
    Property type
    Investment properties
    Property subtype
    Live-work space
    APN
    MARL M:070 B:261 L:000
    APU
    MARLM070B261L000

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      ML approach
      $270,000

    • Comparable approach

      Method
      Estimation
      AI Estimate
      $283,000
      Market price range: $149k - $654k

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

    Location Insight

    • Map
    • Local Demand
    City
    Marlborough
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.5439
    Latitude
    42.3471
    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
    $0.00
    $139,600
    $189,300
    $328,900
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $220,000
      5,582 SF

      316 Ss St

      OFFICE/RESIDENTIAL (MIXED USE) • 5,582 SF
      316 Ss St, Marlborough, MA 01752-6105
      View Details
    • Value Estimation
      $295,000
      5,383 SF

      527 Lincoln St

      OFFICE/RESIDENTIAL (MIXED USE) • 5,383 SF
      527 Lincoln St, Marlborough, MA 01752-4082
      View Details
    • Value Estimation
      $225,000
      5,820 SF

      32 Main St, Unit 38

      OFFICE/RESIDENTIAL (MIXED USE) • 5,820 SF
      32 Main St, Marlborough, MA 01752-3827
      View Details
    • Value Estimation
      $290,000
      1,584 SF

      25 Lakeside Ave

      OFFICE/RESIDENTIAL (MIXED USE) • 1,584 SF
      25 Lakeside Ave, Marlborough, MA 01752-4564
      View Details
    • Value Estimation
      $335,000
      2,442 SF

      12 Main St

      OFFICE/RESIDENTIAL (MIXED USE) • 2,442 SF
      12 Main St, Marlborough, MA 01752-3941
      View Details
    • Value Estimation
      $265,000
      0.42 Acres

      109 Mechanic St

      OFFICE/RESIDENTIAL (MIXED USE) • 0.42 Acres
      109 Mechanic St, Marlborough, MA 01752-4409
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      5,374 SF

      Marlborough Office & Flex Space

      Office and flex space in a high-visibility Marlborough location.
      7-9 Mechanic St, Marlborough, MA 01752
      View Details
    • Contact for pricing
      2,000 SF

      Freestanding Commercial Building on Route 20

      2,000 SF Marlborough building with high visibility and ample parking.
      71 Boston Post Rd East, Marlborough, MA 01752
      View Details
    • Contact for pricing
      29 SF

      29.14 Acre I-290 Frontage Land

      29.14 acre lot with I-290 frontage in Marlborough, MA.
      582 Robin Hill St, Marlborough, MA 01752
      View Details
    • Contact for pricing
      16 SF

      Marlborough Industrial Land Parcel

      16-acre industrial land parcel near I-495 in Marlborough, MA.
      287 Elm St, Marlborough, MA 01752
      View Details
    • $649,000

      Well-Maintained Two-Unit Home

      Two-unit home with eat-in kitchens and off-street parking.
      3 Madison St, Marlborough, MA 01752
      View Details
    • Contact for pricing

      Prime Commercial Pad Site Available

      One-acre pad site near major retailers and highway.
      495 Rte 20 & Rte, Marlborough, MA 01752
      View Details

    Similar Nearby for Lease

    • Contact for pricing
      2,640 SF

      Marlborough Office Space for Rent

      Office space in Knowledge Park with on-site amenities.
      4 Mount Royal Ave, Marlborough, MA 01752
      View Details
    • $18 SF/Yr
      14,186 SF

      Marlboro Office Building For Rent

      Two-story office building near retail and entertainment.
      313 Boston Post Rd W, Marlborough, MA 01752
      View Details
    • Contact for pricing
      3,347 SF

      Modern Office Space Available

      Contemporary office space for lease with highway access.
      100 Crowley Dr, Marlborough, MA 01752
      View Details
    • Contact for pricing
      11,854 SF

      Office/Flex Space in Solomon Pond

      11,854 SF office/flex space in Marlborough, MA for lease.
      200 Donald Lynch Blvd, Marlborough, MA 01752
      View Details
    • Contact for pricing
      161,300 SF

      Marlborough Office Park with Amenities

      Three-building office park with amenities and highway access.
      2 Mount Royal Ave, Marlborough, MA 01752
      View Details
    • $8 SF/Yr
      2,250 SF

      Retail Spaces Available for Lease

      Neighborhood retail center with spaces for lease on main highway.
      630-650 Boston Post Rd E, Marlborough, MA 01752
      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.
    30 Main St
    Marlborough, MA 01752-3862
    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.