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Sold for $675,000
    • Zestimate®
    $675,000

    21 Mercer St #3, South Boston, MA 02127

    2beds
    840sqft
    Condo
    Built in 1900
    -- sqft lot
    $675,000 Zestimate®
    $804/sqft
    $3,588 Estimated rent

    Home value

    $675,000

    $628,000 - $722,000

    $3,588/mo

    Zestimate® history

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    What's special

    Bright & sunny penthouse corner unit with many windows and a gorgeous skylight-flooded with natural light throughout in the Dorchester Heights/Thomas Park neighborhood. Large eat-in kitchen with stainless steel appliances & granite counters. Hardwood floors, central A/C, two large almost equal sized bedrooms. Gas fireplace, in-unit laundry, and a shared common roof deck with panoramic view of Thomas Park, the playing fields, the Blue Hills of Milton, and the Financial District. Additional storage in basement. Easy to show with some notice appreciated. Owners making repairs to roof deck. Pet friendly and 100% owner occupied building. Condo Reserves $3,353.57 Close to the beach Andrew Red Line Station and all South Boston offers Lincoln, Capo, Loco, Café Portobello, Foodies and the Seaport District

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 2
    • Bathrooms: 1
    • Full bathrooms: 1
    Heating
    • Forced air
    Cooling
    • Other
    Appliances
    • Included: Dishwasher, Dryer, Freezer, Garbage disposal, Microwave, Range / Oven, Washer
    Features
    • Has fireplace: Yes
    Interior area
    • Total interior livable area: 840 sqft

    Property

    Features
    • Exterior features: Wood
    Lot
    • Size: 871 Square Feet
    Details
    • Parcel number: SBOSW07P01170S026

    Construction

    Type & style
    • Home type: Condo
    Condition
    • Year built: 1900

    Community & HOA

    HOA
    • Has HOA: Yes
    • HOA fee: $180 monthly
    Location
    • Region: South Boston

    Financial & listing details

    • Price per square foot: $804/sqft
    • Tax assessed value: $618,400
    • Annual tax amount: $7,161

    Price history

    DateEventPrice
    10/13/2026Sold$675,000+22.2%$804/sqft
    Source: Public Record Report a problem
    6/26/2017Sold$552,500+4.4%$658/sqft
    Source: LINK #185989 Report a problem
    5/16/2017Pending sale$529,000$630/sqft
    Source: RE/MAX Andrew Realty Services #72160316 Report a problem
    5/8/2017Listed for sale$529,000+76.3%$630/sqft
    Source: RE/MAX Andrew Realty Services #72160316 Report a problem
    3/9/2016Listing removed$2,500$3/sqft
    Source: RE/MAX Andrew Realty Services #71948477 Report a problem
    2/9/2016Price change$2,500-7.4%$3/sqft
    Source: RE/MAX Andrew Realty Services #71948477 Report a problem
    1/13/2016Listed for rent$2,700$3/sqft
    Source: RE/MAX Andrew Realty Services #71948477 Report a problem
    10/30/2009Sold$300,000-4.8%$357/sqft
    Source: LINK #98246 Report a problem
    6/18/2009Listing removed$315,000$375/sqft
    Source: Postlets #70871922 Report a problem
    5/15/2009Price change$315,000-5.7%$375/sqft
    Source: Postlets #70871922 Report a problem
    3/20/2009Listed for sale$334,000+7.7%$398/sqft
    Source: Postlets #70871922 Report a problem
    5/30/2003Sold$310,000+74.6%$369/sqft
    Source: LINK #41851 Report a problem
    12/30/1998Sold$177,500$211/sqft
    Source: LINK #9803 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$7,161 +10.1%$618,400 +3.7%
    2024$6,503 +3.6%$596,600 +2.1%
    2023$6,278 +2.7%$584,500 +4%
    2022$6,113 +4%$561,900 +2%
    2021$5,878 +6.1%$550,900 +5%
    2020$5,539 +7.2%$524,500 +7%
    2019$5,168 +13.3%$490,300 +12.7%
    2018$4,560 +728.4%$435,100 +7%
    2017$550 -86.8%$406,700 +7.5%
    2016$4,164 -2.6%$378,500 +7.3%
    2015$4,274 +7.2%$352,900 +16.3%
    2013$3,987 +9.3%$303,400 +8.5%
    2012$3,647 +2%$279,700
    2011$3,577 +9.5%$279,700 +1.7%
    2010$3,268 +3.1%$275,100 -7.7%
    2009$3,170 -3.1%$298,200
    2008$3,271 -3.3%$298,200 -3.1%
    2007$3,382 $307,700
    Find assessor info on the county website

    Neighborhood: South Boston

    Nearby homes

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • Elementary: Boston Public
    • Middle: Boston Public
    • High: Boston Public

    Source: The MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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    Estimated market value

    $675,000

    Get a cash offer in 3 minutes
    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value

    $675,000

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