Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search
    Spacious Three-Family Near Union Square Title is generated by Realmo AI

    9 Sanborn Ave, Somerville, MA 02143

    View on Map
    Claim this Listing
    For Sale
    $1,750,000

    Well-maintained three-family property with a spectacular yard and flexible layouts.

    Type:Investment
    Added:
    Apr 10, 2026
    Days on Market:
    55
    Last Refresh:
    Apr 10 at 9:21 am

    Property Features for 9 Sanborn Ave

    General Information

    Standard status
    Active
    Property subtype
    Investment

    Building Details

    Year Built
    1900

    We can help!

    Listing Contact
    John Petrowsky

    Listing agent John Petrowsky

    Listing office

    Listing date Apr 10, 2026

    Source Elliman

    Displayed information is deemed reliable but is not guaranteed and should be independently verified.

    All listing content including descriptions, pricing, images are the copyrighted material of John Petrowsky

    HighLights

    • Delivered Vacant: Offering immediate rental income potential or owner‑occupancy flexibility.
    • Prime Location: Just a block from Union Square with excellent walk, bike, and transit scores.
    • Separate Systems: Each unit has its own recent forced air and hot water tank systems.
    • Multiple Units with Decks: Enhancing outdoor living space.
    • Updated and Well‑Maintained: Newer kitchen and bath in Unit 1, newer laundry machines, and a well‑maintained slate roof.
    • Desirable Features: High ceilings, period details, fine wood flooring, and a landscaped yard with mature plantings.

    Overview

    This spacious three-family property is located just a block outside of Union Square. The property features a landscaped yard with mature plantings. Unit 3, which is vacant, offers a flexible layout with two large bedrooms, one smaller bedroom, and one bathroom, along with views from the deck. Unit 2, currently owner-occupied, has an open plan with two bedrooms and a sunny study, an eat-in kitchen, and a roomy deck. Unit 1 has a one-bedroom layout with a newer kitchen and bath, and a deck above the yard. The property is south-facing, providing ample light throughout the day, with morning sun in the kitchen. High ceilings and period details are present, along with fine wood flooring. Each apartment has a recent forced air system powered by gas, as well as a recent gas hot water tank. Laundry facilities are located in the basement with newer machines. Additional features include a perimeter drain system, updated electric, and a well-maintained slate roof. A two-car driveway is present and can be expanded. The property will be delivered vacant. The bike score is 89, indicating it is very bikeable. The walk score is 97, indicating it is a walker's paradise. The transit score is 85, indicating excellent transit options.
    Location Intelligence

    Current Use by Public Records

    Triplexes

    Suggested Use

    Law Firm Restaurant Real Estate Agency Spa & Massage Center Dental Office Hair Salon Nail Salon Food Market Grocery & Convenience Store Gym & Fitness Center

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Somerville
    County
    Middlesex
    State
    Massachusetts
    Longitude
    -71.0960313
    Latitude
    42.3814473

    Nearby Similar for Sale

    • $1,350,000
      3,136 SF

      Somerville Two-Family Home For Sale

      Two-family home in desirable Somerville neighborhood near Cambridge and Davis Square.
      29 Victoria St, Somerville, MA 02144
      View Details
    • $1,599,000
      3,115 SF

      Somerville Mixed-Use Building For Sale

      Mixed-use building with residential and commercial units in Somerville.
      148 Pearl, Somerville, MA 02145
      View Details
    • $3,300,000
      8,060 SF

      Renovated Multifamily Building Near Gilman Square

      Fully renovated 6-unit building in Somerville's Winter Hill neighborhood.
      109 Walnut St, Somerville, MA 02145
      View Details
    • $1,399,000
      2,184 SF

      Turn-Key Two-Family Investment

      Meticulously maintained two-unit with recent plumbing and electrical updates plus off-street parking for 3+ cars.
      66 Gordon St, Somerville, MA 02144
      View Details
    • $1,699,000
      3,540 SF

      Somerville Multifamily Investment Opportunity

      East Somerville multifamily near transit and amenities, strong income potential.
      20 Autumn St, Somerville, MA 02145
      View Details
    • $2,950,000
      3,820 SF

      Inman Square Retail Opportunity

      Prime Somerville/Cambridge location with two retail units and parking.
      70 Beacon, Somerville, MA 02143
      View Details
    • $2,900,000
      10,848 SF

      Somerville Retail Investment Opportunity

      Fully occupied retail asset in high-visibility Somerville location for sale.
      163-179 Washington St, Somerville, MA 02143
      View Details
    • $2,400,000
      6,755 SF

      Somerville Multifamily Investment Opportunity

      Six-unit building near Union Square with strong rental income potential.
      8 Everett St, Somerville, MA 02143
      View Details
    • $150,000

      Union Square Restaurant Opportunity

      Established Thai restaurant for sale in Union Square.
      93 Beacon, Somerville, MA 02143
      View Details
    • $1,569,900
      2,608 SF

      Davis Square Two-Family Home

      Well-maintained two-family home in desirable Davis Square.
      67 Irving Street, Somerville, MA 02144
      View Details
    • $1,125,000
      2,205 SF

      Somerville Multi-Family Residence

      Multi-family residence in Somerville, MA, built in 1900.
      7 Woodbine St, Somerville, MA 02143
      View Details
    • $2,950,000
      2,020 SF

      Inman Square Retail Opportunity

      Prime Somerville/Cambridge retail building with two units and parking.
      70 Beacon, Somerville, MA 02143
      View Details

    FAQs

    What type of property is this?
    Triplex - Well-maintained three-family property with a spectacular yard and flexible layouts.
    Where is this triplex located?
    The property is located at 9 Sanborn Ave Somerville, MA.
    What is the asking price?
    The asking price for this property is $1,750,000.
    What are key features of this property?
    This property features: Delivered Vacant: Offering immediate rental income potential or owner‑occupancy flexibility.; Prime Location: Just a block from Union Square with excellent walk, bike, and transit scores.; Separate Systems: Each unit has its own recent forced air and hot water tank systems.
    (617) 504-6330
    We can help!
    Listing Contact
    John Petrowsky
    Learn More
    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.
    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

    Thank You for Inquiry
    9 Sanborn Ave, Somerville, MA 02143
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!