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    Dorchester Triplex Near Fields Corner Title is generated by Realmo AI

    20 Corona St, Boston, MA 02124

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    Claim this Listing
    Pending
    $1,350,000

    MULTI_FAMILY - Boston, MA

    Property size:
    4,272 SF
    Lot size:
    0.09 Acres
    Added:
    Mar 31, 2026
    Days on Market:
    53
    Last Refresh:
    May 22 at 6:06 am

    Property Features for 20 Corona St

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R3
    Bedrooms
    12
    Bathrooms
    3
    Rooms
    Bedroom 5, Bedroom 12, Bedroom 11, Bedroom 6, Bedroom 7, Bedroom 2, Bedroom 9, Bedroom 10, Bedroom 3, Bathroom 3, Bedroom 4, Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 8
    Parking
    2
    Standard status
    Pending
    APN
    W:15 P:00861 S:000,1302065
    Size
    4,272 SF
    Lot size
    0.09 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    14724

    Building Details

    Year built
    1905
    Floors in Building
    3
    Number of units
    3

    We can help!

    Listing Contact
    Keller Williams Realty Evolution

    Listing agent Keller Williams Realty Evolution

    Listing office Keller Williams Realty Evolution 301 Edgewater Place, Suite 100, Beverly, MA

    Listing date Mar 31, 2026

    MLS# 73494101 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

    • Massive triple‑decker building with over 4200 sq ft.
    • Three units, each with 4 bedrooms and 1 bath.
    • Renovated in 2019: featuring new kitchens, baths, electric, plumbing, windows, and roof.
    • Close proximity to Fields Corner T Stop.
    • Off‑street parking with a driveway.
    • Hardwood floors and common laundry in the basement.

    Overview

    This multifamily property in Boston, Massachusetts, features a massive triple decker with over 4200 square feet. Each of the three units includes 4 bedrooms and 1 bath. The building was renovated in 2019, with upgrades including new kitchens and baths, new electric and plumbing systems, and a new roof and windows. Units feature large rooms and hardwood floors. Common laundry is available in the basement. The property includes a driveway for off-street parking and decks off the rear of each unit. Located in Dorchester, the property is near the Fields Corner T Stop and offers convenient highway access. The property is zoned R3 and sits on a lot of 0.0877 acres.

    Financial Insights

    Value Estimation Calculated for Multifamily LT 5

    Conservative
    $1.20M
    NOI $107,950 @ 9.00% cap · cautious / downside scenario
    Moderate
    $1.54M
    NOI $107,950 @ 7.00% cap · market / base-case scenario
    Aggressive
    $2.16M
    NOI $107,950 @ 5.00% cap · optimistic / upside scenario

    NOI & Cap Rate Calculator

    NOI Build-Up
    Vacancy
    income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
    EGI (Effective Gross Income)
    gross rent minus vacancy losses — the realistic income before paying operating costs.
    OpEx (Operating Expenses)
    recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
    NOI (Net Operating Income)
    income a property generates after operating costs but before financing and taxes.
         Calculated for Multifamily LT 5

    Component $ $/SF
    Gross rent $161.5k $37.80
    − Vacancy −$7.3k −$1.70
    EGI $154.2k $36.10
    − OpEx −$46.3k −$10.83
    NOI $108.0k $25.27
    4,272 SF · lease $37.80/SF/yr · vacancy 4.50% · expense 30.00%

    Alternative Use Scenarios

    Best Use
    Multifamily LT 5
    $1.54M
    $1.35M – $1.80M (±1% cap)
    NOI $107,950 @ 7.0% cap · market cap 8.00%
    Second Best
    Apartment 5plus
    $1.43M
    $1.25M – $1.67M (±1% cap)
    NOI $100,358 @ 7.0% cap · market cap 7.43%
    Theoretical Best
    Office A
    $3.20M
    $2.80M – $3.73M (±1% cap)
    NOI $223,921 @ 7.0% cap · market cap 16.59%
    Zoning and permitted uses should be independently verified with local authorities.
    Property Profile Insight Report 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 Gym & Fitness Center Skin Care Clinic

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

    Location Insight

    • Map
    • Local Demand
    City
    Boston
    County
    Suffolk
    State
    Massachusetts
    Longitude
    -71.070967
    Latitude
    42.301096

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    FAQs

    What type of property is this?
    Triplex - Renovated triple decker with strong rent roll near T stop.
    Where is this triplex located?
    The property is located at 20 Corona St Boston, MA.
    What is the asking price?
    The asking price for this property is $1,350,000.
    What are key features of this property?
    This property features: Massive triple‑decker building with over 4200 sq ft.; Three units, each with 4 bedrooms and 1 bath.; Renovated in 2019: featuring new kitchens, baths, electric, plumbing, windows, and roof.
    (781) 395-5600
    We can help!
    Listing Contact
    Keller Williams Realty Evolution
    Learn More
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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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