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    • 21 Main St

    Charlestown, MA 02129

    Apartment building
    1-3 beds

    Available units

    This building may have units for rent or for sale. Select a unit to contact.
    $730,000
    1 bd, 1 ba
    683 sqft
    Sold  06/08/2025 - Unit B

    Coldwell Banker Realty - Boston, Grace Bloodwell

    Neighborhood: Charlestown

    Areas of interest

    Use our interactive map to explore the neighborhood and see how it matches your interests.

    Travel times

    Walk, Transit & Bike Scores

    93 / 100
    Walker's Paradise
    87 / 100
    Very Bikeable

    Nearby schools in Charlestown

    GreatSchools rating

    Market Trends

    Rental market summary

    The average rent for all beds and all property types in Charlestown, MA is $3,350.

    Average rent

    $3,350

    Month-over-month

    -$25

    Year-over-year

    +$50

    Available rentals

    15,386

    Charlestown, MA Rental Market Data

    Frequently asked questions

    What is the walk score of 21 Main St?

    21 Main St has a walk score of 93, it's a walker's paradise.

    What schools are assigned to 21 Main St?

    The schools assigned to 21 Main St include Harvard-Kent Elementary School, Warren-Prescott K-8 School, and Charlestown High School.

    What neighborhood is 21 Main St in?

    21 Main St is in the Charlestown neighborhood in Charlestown, MA.