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For sale
    • $3,950,000

    6 Union Park APT 3, Boston, MA 02118

    3beds
    2,340sqft
    : 
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    Condominium, Rowhouse
    Built in 1890
    -- sqft lot
    $3,768,600 Zestimate®
    $1,688/sqft
    $662/mo HOA

    What's special

    Steam showerOversized spa bathPark-facing primary suiteSoaking tubGas fireplace adds warmth
    A Union Park Dream! Soaring 15' cathedral ceilings and over 21' of interior width deliver rare volume in the South End. Perched above Union Park, this 2,340 SF penthouse duplex is defined by light, scale, and thoughtful design. The main level features a luxurious kitchen with premium appliances and sleek finishes, opening to an expansive living and dining area that easily accommodates a 10-seat table. Exposed beams highlight the dramatic ceiling height, while a gas fireplace adds warmth. West-facing window walls flood the home with natural light. A lofted den with a custom wet bar leads to a private roof deck, ideal for entertaining or relaxing. The lower level offers a park-facing primary suite with oversized spa bath, steam shower, and soaking tub, plus two additional bedrooms. Two deeded parking spaces, including one garage.
    74 days
    |
    802
    |
    36
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Jeffrey Hamilton 617-645-3407,

    Columbus and Over Group, LLC 617-645-3407,

    Kaitlyn Garger 518-956-1821

    Source: MLS PIN,MLS#: 73508645

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      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 3
      • Full bathrooms: 2
      • 1/2 bathrooms: 1
      Heating
      • Central, Ductless
      Cooling
      • Central Air, Ductless
      Appliances
      • Included: Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
      Features
      • Has basement: No
      • Number of fireplaces: 1
      • Common walls with other units/homes: No One Above
      Interior area
      • Total structure area: 2,340
      • Total interior livable area: 2,340 sqft
      • Finished area above ground: 2,340

      Property

      Parking
      • Total spaces: 2
      • Parking features: Detached, Garage Door Opener, Tandem, Deeded, Driveway
      • Garage spaces: 1
      • Uncovered spaces: 1
      Features
      • Patio & porch: Deck - Roof
      • Exterior features: Deck - Roof
      Details
      • Parcel number: 3390135
      • Zoning: RESI

      Construction

      Type & style
      • Home type: Condo
      • Property subtype: Condominium, Rowhouse
      Materials
      • Brick
      • Roof: Slate,Rubber
      Condition
      • Year built: 1890
      • Major remodel year: 2017

      Utilities & green energy

      • Sewer: Public Sewer
      • Water: Public

      Community & HOA

      Community
      • Features: Public Transportation, Shopping, Park, Walk/Jog Trails
      • Security: Intercom
      HOA
      • Services included: Water, Sewer, Insurance, Snow Removal
      • HOA fee: $662 monthly
      Location
      • Region: Boston

      Financial & listing details

      • Price per square foot: $1,688/sqft
      • Tax assessed value: $3,536,200
      • Annual tax amount: $44,274
      • Date on market: 4/28/2026

        Estimated market value

        $3,768,600

        $3.58M - $3.96M

        $7,187/mo

        Price history

        DateEventPrice
        4/28/2026Listed for sale$3,950,000-5.8%$1,688/sqft
        Source: MLS PIN #73508645 Report a problem
        7/7/2025Listing removed$4,195,000$1,793/sqft
        Source: MLS PIN #73366256 Report a problem
        6/3/2025Price change$4,195,000-4.6%$1,793/sqft
        Source: MLS PIN #73366256 Report a problem
        4/29/2025Listed for sale$4,395,000+25.6%$1,878/sqft
        Source: MLS PIN #73366256 Report a problem
        6/13/2017Sold$3,500,000$1,496/sqft
        Source: LINK #187463 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$40,949 +9.5%$3,536,200 +3%
        2024$37,407 +3.6%$3,431,800 +2%
        2023$36,121 -0.3%$3,363,200 +1%
        2022$36,236 +4%$3,330,500 +2%
        2021$34,840 +5.5%$3,265,200 +4.4%
        2020$33,012 +3.2%$3,126,100 +3%
        2019$31,983 $3,034,400
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

        Explore the cost of this home by adjusting the details. Changes won't be saved.
        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: South End

        Getting around

        98 / 100
        Walker's Paradise
        92 / 100
        Rider's Paradise
        92 / 100
        Biker's Paradise

        Nearby schools

        GreatSchools rating

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