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Pending
  • $1,025,000

    21 Prospect St #1, Charlestown, MA 02129

    2beds
    905sqft
    : 
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    Condominium, Rowhouse
    Built in 1890
    -- sqft lot
    $938,300 Zestimate®
    $1,133/sqft
    $167/mo HOA

    What's special

    Gas fireplaceCentral airIn-unit laundrySpacious deckOpen-concept layoutUpdated kitchenDedicated dining area
    Offer Accepted Open House Cancelled! This sun-filled 2BR/2BA home offers beautiful park views through a dramatic wall of windows and a rare fully exposed side, flooding the home with exceptional natural light throughout the day. The open-concept layout is ideal for everyday living and entertaining, featuring a gas fireplace, dedicated dining area, and updated kitchen with quartz countertops, blue cabinetry, and high-end stainless steel appliances. Spacious primary suite includes double closets and an en-suite bath with tub/shower. Generous second bedroom offers space for a queen bed plus office nook. Enjoy an unusually large private outdoor setup with both a spacious deck and fenced brick courtyard. Additional highlights include high ceilings, central air, in-unit laundry, custom built-ins, exceptional basement storage, and excellent closet space throughout. One off-street parking space available to lease for 2 years next to the unit
    44 days
    |
    35
    |
    0
    |

    Likely to sell faster than

    Zillow last checked:

    Listing updated:

    Listed by:

    Tracy Shea 617-697-4570,

    Coldwell Banker Realty - Boston 617-242-0025,

    Sophie Shea 617-877-6112

    Source: MLS PIN,MLS#: 73525844

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 2
      • Bathrooms: 2
      • Full bathrooms: 2
      Primary bathroom
      • Features: Yes
      Heating
      • Forced Air
      Cooling
      • Central Air
      Appliances
      • Included: Range, Oven, Dishwasher, Disposal, Refrigerator, Freezer, Washer, Dryer
      • Laundry: In Unit
      Features
      • Flooring: Wood
      • Has basement: Yes
      • Number of fireplaces: 1
      Interior area
      • Total structure area: 905
      • Total interior livable area: 905 sqft
      • Finished area above ground: 905

      Property

      Parking
      • Total spaces: 1
      • Parking features: Off Street, Rented
      • Uncovered spaces: 1
      Features
      • Patio & porch: Deck, Patio - Enclosed
      • Exterior features: Deck, Patio - Enclosed
      Details
      • Parcel number: W:02 P:02840 S:002,4396131
      • Zoning: CD

      Construction

      Type & style
      • Home type: Condo
      • Property subtype: Condominium, Rowhouse
      Condition
      • Year built: 1890

      Utilities & green energy

      • Sewer: Public Sewer
      • Water: Public

      Community & HOA

      HOA
      • Services included: Water, Sewer, Insurance
      • HOA fee: $167 monthly
      Location
      • Region: Charlestown

      Financial & listing details

      • Price per square foot: $1,133/sqft
      • Tax assessed value: $790,000
      • Annual tax amount: $9,881
      • Date on market: 5/28/2026

        Estimated market value

        $938,300

        $873,000 - $1.00M

        $4,569/mo

        Price history

        DateEventPrice
        6/5/2026Pending sale$1,025,000$1,133/sqft
        Source: MLS PIN #73525844 Report a problem
        5/28/2026Listed for sale$1,025,000+54.5%$1,133/sqft
        Source: MLS PIN #73525844 Report a problem
        2/27/2015Sold$663,300+0.7%$733/sqft
        Source: Public Record Report a problem
        1/29/2015Pending sale$659,000$728/sqft
        Source: Hammond Residential #71786497 Report a problem
        1/22/2015Listed for sale$659,000+26.7%$728/sqft
        Source: Hammond Residential #71786497 Report a problem
        7/21/2003Sold$520,000$575/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$8,970 +10.5%$774,600 +4%
        2024$8,116 +6.7%$744,600 +5.1%
        2023$7,609 +2.7%$708,500 +4%
        2022$7,410 +4%$681,100 +2%
        2021$7,125 +7.1%$667,800 +6%
        2020$6,653 +7.3%$630,000 +7.1%
        2019$6,203 +5.6%$588,500 +5%
        2018$5,874 +528.6%$560,500 -14.1%
        2017$934 -83.6%$652,800 +26%
        2016$5,699 +3.5%$518,100 +13.9%
        2015$5,506 +7.6%$454,700 +16.8%
        2013$5,115 -17.8%$389,300 -18.4%
        2012$6,219 +2%$476,900
        2011$6,100 +7.7%$476,900
        2010$5,666 +13.2%$476,900 +1.3%
        2009$5,005 -3%$470,800 +0.1%
        2008$5,159 -2.9%$470,300 -2.8%
        2007$5,315 $483,600
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: Charlestown

        Getting around

        91 / 100
        Walker's Paradise
        69 / 100
        Bikeable

        Nearby schools

        GreatSchools rating

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