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About this home
Space. Privacy. Parking. Outdoor living. In South Boston, finding one is expected. Finding all four is exceptional.Introducing Townhouse 1 at 421 East 6th Street—a newly constructed residence delivering the scale and independence of a single-family home with the sophistication of city living.Spanning just under 3,100 living square feet, the home features four en-suite bedrooms, four-and-a-half bathrooms, a dedicated office, multiple private outdoor spaces, and a direct-access car garage.Oversized black-framed windows fill the main living level with natural light, while wide-plank floors and clean architectural lines create a refined, contemporary atmosphere. The open kitchen, dining, and living areas flow effortlessly together, anchored by a sleek linear fireplace and custom millwork.At the center of the home, a dramatic waterfall island with seating for five sets the stage for everyday living and entertaining. The chef’s kitchen pairs two-tone cabinetry and polished-nickel fixtures with a professional Thermador appliance suite, including a 48-inch six-burner gas range with griddle, panel-ready French-door refrigerator, drawer microwave, and dishwasher. A separate wet bar with a beverage center and second dishwasher makes hosting seamless.Across two private levels, four generously proportioned bedrooms each feature an en-suite bathroom, providing exceptional comfort for family and guests. The primary suite measures approximately 16 feet 6 inches by 20 feet and offers oversized windows, custom wall detailing, a walk-in closet, and a private balcony.Its spa-inspired bathroom is appointed with a double vanity, polished-nickel fixtures, and an oversized glass-enclosed shower with rainfall and handheld showerheads. Curated tile, custom vanities, and sophisticated finishes distinguish the additional en-suite baths.Outdoor living unfolds across two private balconies and an exclusive roof deck—ideal for summer/fall dinners, sunset cocktails, or a quiet escape above the neighborhood. Below, the two tandeem car garage provides a level of convenience seldom available in South Boston.Moments from East Broadway, the waterfront, Seaport, and Downtown Boston, Townhouse 1 offers the freedom to have everything you want from the city—without compromise.
Highlights
Property details
- MLS #
- 73575859
- Property type
- Condominium
- Subdivision
- N/A
- Status
- Active
- Days on market
- 31
- On market date
- September 11, 2026
- Stories
- 4
- Total bathrooms
- 4.5
- Garage spaces
- 2
- Parking spaces
- 2
- Lot size
- N/A
Location
Get directions →Nearby schools
Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.
- Enrollment
- 214
- Student:teacher ratio
- 8.2:1
- District
- Boston
- Enrollment
- 317
- Student:teacher ratio
- 10.2:1
- District
- UP Academy Charter School of Boston (District)
- Enrollment
- 439
- Student:teacher ratio
- 10.5:1
- District
- Boston
Walkability
Blended score for Boston's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).
Market position
How this listing compares to current activity in Boston, from live MLS data.
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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated 13 days ago.
Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.







