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Prime Location Meets Contemporary Luxury! This custom-designed duplex offers nearly 1,600 sq ft of sophisticated living across two levels in a welcoming Charlestown neighborhood. The bright open-concept layout features hardwood floors throughout, windows on three sides equipped with custom remote-control shades, and a striking double-sided gas fireplace connecting the foyer to the living area.A chef's kitchen boasts stainless appliances, granite countertops, wood cabinetry, and a breakfast bar. The spacious primary suite features dual closets and a newly remodeled spa-style bath, complemented by a generous second bedroom and guest half-bath.Additional upgrades include a new furnace and tankless water heater. Enjoy the convenience of private deeded parking, central air, in-unit laundry, and extra storage. Live steps from Whole Foods and Charlestown's best dining, including Monument Restaurant & Prima, and Warren Tavern. With easy access to parks and transit.

More Info

Basic Information

  • Bedrooms2
  • Mls StatusUnder Agreement
  • Bathroom2
  • Contingency Pending P&S
  • Parcel Number 1280750
  • Unit Number1

Tax Information

  • Tax Assessed Value $1,171,200
  • Tax Year 2025
  • Taxes$13,562

Parking

  • Parking Spaces1
  • Open Parking YN Yes
  • Parking Features Off Street, Deeded, Driveway

Rooms

  • Bathrooms Total Decimal 1.5
  • Full Bath1
  • Half Baths1

Basic Information

  • List Price$1,197,500
  • MLS Number73491508
  • Modification Date05/31/2026
  • Property SubTypeCondominium
  • Purchase Contract Date05/06/2026
  • Virtual TourView Tour

Location

  • NeighborhoodCharlestown
  • SubdivisionCharlestown
  • Address21 Oak Street
  • Building Number21
  • CountySuffolk
  • StateMA
  • StreetOak Street
  • TownBoston
  • Zip02129

Building

  • BasementN
  • Building Area Units Square Feet
  • Construction Materials Frame
  • Entry Level 1
  • FireplaceYes
  • Fireplaces Total 1
  • Patio And Porch Features Porch
  • Rooms5
  • Stories2
  • Utilities For Gas Range
  • Window Features Insulated Windows
  • Year Built1920
  • Year Built Details Renovated Since
  • Year Built Effective 2008
  • Year Built Source Public Records

Property

  • Acreage0.11
  • Entry Location Unit Placement(Street, Partially Below Grade)

Interior

  • Flooring Wood, Tile

Exterior

  • Exterior Features Porch, Garden
  • RoofShingle

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Electric 110 Volts
  • Heat SystemYes
  • Heating Forced Air, Natural Gas
  • Sewer Public Sewer
  • Water Source Public

Property Information

  • Square Feet1,581
  • Building Area Source Public Records
  • Living Area 1,581
  • Lot Size Square Feet 4,791
  • Lot Size Units Acres
  • Structure Type 2/3 Family

Amenities

  • Amenities
    • Bike Path
    • Highway Access
    • House of Worship
    • Marina
    • Medical Facility
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • University
    • Walk/Jog Trails
  • Appliances IncludedENERGY STAR Qualified Refrigerator, ENERGY STAR Qualified Dryer, ENERGY STAR Qualified Dishwasher, ENERGY STAR Qualified Washer, Range, Oven
  • Green Energy Efficient Thermostat
  • Other AmenitiesFireplace, Garden
  • PetsYes

Legal

  • ZoningCD

Other

  • Association Fee $300
  • Association Fee Frequency Monthly
  • Association Fee Includes
    • Insurance
    • Maintenance Grounds
    • Maintenance Structure
    • Sewer
    • Snow Removal
    • Water
  • Date Listed03/25/2026
  • Farm Land Area Units Square Feet
  • View Count3

Map Location

Driving Directions

Listed by Lisa Sheehan of Berkshire Hathaway HomeServices Robert Paul Properties

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