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Off market
  • $658,900

    18 Union St #1, Charlestown, MA 02129

    2beds
    1baths
    700sqft
    Condo
    Built in 1905
    -- sqft lot
    $658,900 Zestimate®
    $941/sqft
    $3,475 Estimated rent

    Home value

    $658,900

    $619,000 - $698,000

    $3,475/mo

    Zestimate® history
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    $3,475/mo

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    $3,909/mo

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    What's special

    Perfect 2 bed/1 bath in A++ Gas Light location! Open and comfortable layout with hardwood floors throughout. Huge eat-in-kitchen features granite countertops, oversized cabinets, and brand-new oven with gas cooking. Large bedrooms with ample closet space. Don't forget about your direct access private deck! Private laundry and dedicated storage room in basement. Available September 1st.

    This property is off market, which means it's not currently listed for sale or rent on Zillow. This may be different from what's available on other websites or public sources.

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 2
    • Bathrooms: 1
    Heating
    • Forced air
    Cooling
    • None
    Appliances
    • Included: Dishwasher, Dryer, Garbage disposal, Microwave, Range / Oven, Refrigerator, Washer
    Features
    • Flooring: Hardwood
    Interior area
    • Total interior livable area: 700 sqft

    Property

    Parking
    • Parking features: None
    Features
    • Exterior features: Other
    Lot
    • Size: 690 Square Feet
    Details
    • Parcel number: CHARW02P03821S002

    Construction

    Type & style
    • Home type: Condo
    Materials
    • Roof: Other
    Condition
    • Year built: 1905

    Community & HOA

    Location
    • Region: Charlestown

    Financial & listing details

    • Price per square foot: $941/sqft
    • Tax assessed value: $548,100
    • Annual tax amount: $6,347

    Price history

    DateEventPrice
    7/16/2025Listing removed$3,100$4/sqft
    Source: MLS PIN #73392126 Report a problem
    6/17/2025Listed for rent$3,100+14.8%$4/sqft
    Source: MLS PIN #73392126 Report a problem
    7/6/2021Listing removed--
    Source: Zillow Rental Network Premium Report a problem
    6/22/2021Listed for rent$2,700+8%$4/sqft
    Source: Zillow Rental Network Premium #72854123 Report a problem
    9/10/2019Listing removed$2,500-3.8%$4/sqft
    Source: Compass #72548961 Report a problem
    8/13/2019Listed for rent$2,600$4/sqft
    Source: Compass #72548961 Report a problem
    9/11/2018Listing removed$2,600$4/sqft
    Source: Compass #72379968 Report a problem
    8/16/2018Listed for rent$2,600$4/sqft
    Source: Compass #72379968 Report a problem
    7/30/2017Listing removed$2,600$4/sqft
    Source: Gibson Sotheby's International Realty #72195153 Report a problem
    7/10/2017Listed for rent$2,600+4%$4/sqft
    Source: Gibson Sotheby's International Realty #72195153 Report a problem
    7/20/2016Listing removed$2,500+4.2%$4/sqft
    Source: Gibson Sotheby's International Realty #72035958 Report a problem
    8/18/2015Listing removed$2,400$3/sqft
    Source: Revolution Realty Report a problem
    6/26/2015Listed for rent$2,400+41.2%$3/sqft
    Source: Gibson Sotheby's International Realty #71864854 Report a problem
    1/3/2015Listing removed$1,700$2/sqft
    Source: Gibson Sotheby's International Realty Report a problem
    12/15/2014Listed for rent$1,700$2/sqft
    Source: Gibson Sotheby's International Realty Report a problem
    12/12/2014Sold$425,000+18.4%$607/sqft
    Source: Public Record Report a problem
    11/30/2007Sold$359,000+5.6%$513/sqft
    Source: LINK #81770 Report a problem
    6/20/2003Sold$340,000+116.7%$486/sqft
    Source: LINK #8722 Report a problem
    6/30/1999Sold$156,900+89%$224/sqft
    Source: LINK #17317 Report a problem
    9/24/1992Sold$83,000$119/sqft
    Source: Public Record Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$6,347 +10.5%$548,100 +4%
    2024$5,743 +6.6%$526,900 +5.1%
    2023$5,385 +2.7%$501,400 +4%
    2022$5,244 +4%$482,000 +2%
    2021$5,042 +3.6%$472,500 +2.5%
    2020$4,866 +7.3%$460,800 +7%
    2019$4,537 +5.6%$430,500 +5%
    2018$4,298 +312.4%$410,100 +3.1%
    2017$1,042 -75%$397,900 +5%
    2016$4,169 +11.2%$379,000 +22.4%
    2015$3,749 +7.6%$309,600 +16.8%
    2013$3,483 -2.6%$265,100 -3.4%
    2012$3,577 +2%$274,300
    2011$3,508 +7.4%$274,300 -0.2%
    2010$3,265 +8.6%$274,800 -2.9%
    2009$3,007 -3.1%$282,900
    2008$3,103 -1.9%$282,900 -1.7%
    2007$3,163 $287,800
    Find assessor info on the county website

    Neighborhood: Charlestown

    Nearby schools

    GreatSchools rating
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    Estimated market value
    $658,900
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    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $658,900