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    Two-Unit Duplex with Patios Title is generated by Realmo AI

    39 Derby St, Somerville, MA 02145

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    Claim this Listing
    New
    For Sale
    $1,200,000

    MULTI_FAMILY - Somerville, MA

    Property size:
    2,426 SF
    Lot size:
    0.09 Acres
    Price / SF:
    $494/SF
    Added:
    Jun 4, 2026
    Days on Market:
    1
    Last Refresh:
    Jun 4 at 8:06 am

    Property Features for 39 Derby St

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    NR
    Bedrooms
    5
    Bathrooms
    2
    Rooms
    Bathroom 1, Bedroom 5, Bedroom 1, Bedroom 2, Bathroom 2, Bedroom 4, Bedroom 3
    Parking
    8
    Standard status
    Active
    APN
    757533
    Size
    2,426 SF
    Lot size
    0.09 Acres

    Taxes and HOA fees

    Tax Year
    2026
    Tax Annual Amount
    10266

    Building Details

    Year built
    1920
    Floors in Building
    4
    Number of units
    1

    We can help!

    Listing Contact
    Christina Hill

    Listing agent Christina Hill

    Listing office Keller Williams Realty Boston Northwest 1 Militia Drive, Ste. 204, Concord, MA

    Listing date Jun 4, 2026

    MLS# 73529871 Listing URL

    Copyright © 2026 MLS Property Information Network Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Two‑family home built in 1920 with 5 bedrooms listed plus 2 bathrooms and multiple bedrooms across both units
    • Second‑floor unit offers 4 bedrooms with a spacious kitchen and bathroom
    • First‑floor unit offers 2 bedrooms with kitchen and bathroom
    • Large basement with laundry; 2 gas hot water heaters and 2 oil furnaces with forced hot air heating
    • Two separate electric meters (100 amps each)
    • Outdoor features include 2 patios plus private parking for 6‑7 cars

    Overview

    This two-unit duplex offers two separate residences within a 2-family structure, with the first floor featuring 2 bedrooms and the second-floor unit offering 4 bedrooms. Each unit includes a kitchen and bathroom, and the property has a large basement with laundry located there. Exterior amenities include two patios, and the home is supported by two gas hot water heaters and two oil furnaces with forced hot air heating. Separate electric service is provided with two electric meters (100 amps). The property is ready for cosmetic updates, offering a practical renovation and customization opportunity for an end user or a residential income project.

    Located at 39 Derby St in Somerville, the property is described as having convenient access to I-93 and the Green/Orange line. Public remarks also note walkability to Foss Park, Sullivan T Station, Gilman Square, and Assembly Row. The home includes private parking for approximately 6–7 cars, supporting everyday access for tenants or residents.

    From a tenant or buyer standpoint, the clear two-level configuration with separate meters and dedicated heating components can simplify operations in a residential income setting. The combination of spacious room layouts, two distinct patio spaces, and on-site parking supports everyday livability for occupants on both floors, while the basement laundry adds functional day-to-day utility. Zoning is listed as NR, and prospective buyers should review zoning and renovation considerations for their intended use.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    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
    -71.089867
    Latitude
    42.394051

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    FAQs

    What type of property is this?
    Duplex - Two-family duplex in Somerville with two patios, private parking, and separate utilities for each level.
    Where is this duplex located?
    The property is located at 39 Derby St Somerville, MA.
    What is the asking price?
    The asking price for this property is $1,200,000.
    What are key features of this property?
    This property features: Two‑family home built in 1920 with 5 bedrooms listed plus 2 bathrooms and multiple bedrooms across both units; Second‑floor unit offers 4 bedrooms with a spacious kitchen and bathroom; First‑floor unit offers 2 bedrooms with kitchen and bathroom
    (978) 369-5775
    We can help!
    Listing Contact
    Christina Hill
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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.

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