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    Property profile & analytics

    12 Hartwell Ave Lexington, MA 02421

    • Office buildings
    • 33,600 SF
    • 5.00 lot acres
    For Lease
    View listing
    Last Sale
    Mar 02, 2022
    $2,965,245
    Value Estimations
    $2,890,000
    Cap Rate Potential
    Location Intelligence
    Property ID
    US38-1029927
    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

    • Integration Partners / Telecommunications Service / Mobile Phone Store
    • RMS / High School

    Property Details for 12 Hartwell Ave

    Year built
    1975
    Construction
    FRAME
    Lot size
    5.00 lot acres
    Property size
    33,600 SF
    Zone code
    CM
    Property type
    Office buildings
    APN
    LEXI M:0084 L:00070C
    APU
    LEXIM0084L00070C

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $2,745,000
      ML approach
      $2,895,000

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

    Location Insight

    • Map
    • Local Demand
    City
    Lexington
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.2528
    Latitude
    42.4744
    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
    $130,995
    $3,216,000
    $2,197,000
    $5,413,000
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $6,145,000
      23,606 SF

      1 Maguire Rd

      OFFICE BUILDING • 23,606 SF
      1 Maguire Rd, Lexington, MA 02421-3114
      View Details
    • Value Estimation
      $1,085,000
      3,929 SF

      433 Marrett Rd

      OFFICE BUILDING • 3,929 SF
      433 Marrett Rd, Lexington, MA 02421-7714
      View Details
    • Value Estimation
      $15,935,000
      30,351 SF

      40 Hartwell Ave

      OFFICE BUILDING • 30,351 SF
      40 Hartwell Ave, Lexington, MA 02421-3103
      View Details
    • Value Estimation by Request
      160,722 SF

      3 Forbes Rd

      OFFICE BUILDING • 160,722 SF
      3 Forbes Rd, Lexington, MA 02421-7305
      View Details
    • Value Estimation
      $15,005,000
      67,568 SF

      32 Hartwell Ave

      OFFICE BUILDING • 67,568 SF
      32 Hartwell Ave, Lexington, MA 02421-3103
      View Details
    • Value Estimation
      $2,155,000
      7,096 SF

      7 Hartwell Ave

      OFFICE BUILDING • 7,096 SF
      7 Hartwell Ave, Lexington, MA 02421-3101
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      9,450 SF

      Lexington Office Space: Prime Location

      Large Office Suites, Excellent Lexington Location
      81 Hartwell Ave, Lexington, MA 02421
      View Details
    • $4,000,000

      Undeveloped Land in Lexington

      Seven acres of raw land in Lexington, Massachusetts.
      00 Confidential St, Lexington, MA 02421
      View Details

    Similar Nearby for Lease

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      Office building featuring high-end finishes, fitness center, and cafe.
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    • Contact for pricing
      46,750 SF

      Class A Office and Lab

      Class A office and lab space with on-site amenities.
      3 Hartwell Pl, Lexington, MA 02421
      View Details
    • $38 SF/Yr
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      Five-story red brick office building near Routes 2 and 128.
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    • $29 SF/Yr
      1,123 SF

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      Charming 1,123 sq ft office in Lexington Center.
      52-B Waltham St, Lexington, MA 02421
      View Details
    • $29 SF/Yr
      1,123 SF

      Lexington Center Standalone Office Building

      Charming 1,123 sq. ft. office space in Lexington Center.
      52B Waltham St, Lexington, MA 02421
      View Details
    • Contact for pricing
      13,790 SF

      Route 128 Corridor Office Space

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      70 Westview St, Lexington, MA 02421
      View Details
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    12 Hartwell Ave
    Lexington, MA 02421
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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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