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    Property profile & analytics

    66 Un Sq, Unit 301 Somerville, MA 02143-3040

    • Office Properties & Spaces
    • 1,715 SF
    OFF-MARKET
    Value Estimations
    $570,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US38-1382195
    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

    • Community Action Agency of Somerville / Youth Organization
    • Wellesley Design Consultants / Interior Designer
    • Clockworks Analytics / Software Company
    • Handsome Brothers Music Services / Radio Broadcaster
    • Somerville Discount Porta Potty Rental / Portable Toilet Supplier / Waste Management Service

    Property Details for 66 Un Sq

    Year built
    1932
    Construction
    MASONRY/CONCRETE MASONRY UNITS (CMUS)
    Property size
    1,715 SF
    Property type
    Office Properties & Spaces
    APN
    SOME M:73 B:E L:27 U:301
    APU
    SOMEM73BEL27U301

    Description

    This exceptional sublease opportunity presents 3,000 square feet of well-appointed office space within a three-story, Class B building located at 66 Union Square, Somerville, MA 02143. Built in 1932 and renovated in 1991, the building offers a blend of classic charm and modern functionality. The suite itself boasts five private offices, perfect for individual work or team collaboration, along with a dedicated conference room for meetings and presentations. A convenient kitchenette is also included, enhancing the overall convenience and functionality of the space. The sublease includes two reserved parking spaces, a valuable asset in a bustling urban location. Beyond the immediate suite, tenants enjoy access to a private roof deck, providing a unique outdoor amenity for relaxation or informal gatherings. The larger building encompasses 26,000 square feet and is configured for multiple tenants. This sublease is ideal for a business seeking a well-equipped, conveniently located office space in a vibrant Somerville neighborhood. The property's central location offers easy access to public transportation and various amenities.

    Value Estimations

    based on Realmo’s proprietary methodology

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $375,000
      Current use
      COMMERCIAL (GENERAL)
      $815,000
      Change: +117% Conversion: Easy
      AUTO REPAIR, GARAGE
      $485,000
      Change: +29% Conversion: Difficult
      NEIGHBORHOOD: SHOPPING CENTER
      $475,000
      Change: +27% Conversion: Difficult
      RETAIL STORES
      $460,000
      Change: +23% Conversion: Moderate

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

    Location Insight

    • Map
    • Local Demand
    City
    Somerville
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.095
    Latitude
    42.38
    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
    $5,860
    $0.00
    $322,000
    $322,000
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $895,000
      3,014 SF

      337 Somerville Ave, Unit 1

      CONDOMINIUM OFFICES • 3,014 SF
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      View Details
    • Value Estimation by Request
      1,456 SF

      667 Somerville Ave

      CONDOMINIUM OFFICES • 1,456 SF
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    • Value Estimation by Request
      750 SF

      66 Un Sq Ste, Unit 101

      CONDOMINIUM OFFICES • 750 SF
      66 Un Sq Ste, Somerville, MA 02143-3040
      View Details
    • Value Estimation by Request
      848 SF

      65 Beacon St Ste, Unit 101

      CONDOMINIUM OFFICES • 848 SF
      65 Beacon St Ste, Somerville, MA 02143-4379
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    • Value Estimation by Request
      1,310 SF

      66 Un Sq Ste, Unit 103

      CONDOMINIUM OFFICES • 1,310 SF
      66 Un Sq Ste, Somerville, MA 02143-3040
      View Details
    • Value Estimation
      $565,000
      1,715 SF

      66 Un Sq Ste, Unit 201

      CONDOMINIUM OFFICES • 1,715 SF
      66 Un Sq Ste, Somerville, MA 02143-3040
      View Details

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      Somerville Office Sublease Opportunity

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      View Details
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    Somerville, MA 02143-3040
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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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