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About this home
Discover the perfect blend of historic Charlestown charm and modern sophistication at 40 Sullivan Street. This beautifully updated four-bedroom, three-bathroom residence offers four levels of thoughtfully designed living space, rich architectural character, and a private brick patio ideal for outdoor entertaining. The inviting living room showcases an ornate fireplace, custom built-in shelving, hardwood floors, and elegant period details. The beautifully appointed eat-in kitchen features white cabinetry, quartz countertops, stainless steel appliances, a farmhouse sink, and distinctive brass pendant lighting. Generous windows fill the space with natural light, while a charming window seat adds warmth and character. Upstairs, four bedrooms offer comfortable accommodations and flexibility for a home office or guest space. Original wide-plank wood floors, decorative fireplaces, and classic millwork preserve the home's historic appeal, while three full bathrooms feature stylish updates, including a freestanding soaking tub and a double vanity with marble countertops. The finished lower level provides an inviting family or media room with a fireplace, built-in shelving, and French doors opening directly to the private, fenced brick patio—a wonderful extension of the living space for dining, entertaining, or relaxing outdoors. Ideally situated in the heart of Charlestown, this distinctive home offers a rare combination of timeless New England character, modern comfort, and versatile living spaces, all within easy reach of neighborhood shops, restaurants, parks, and downtown Boston.
Highlights
Property details
- MLS
- MLS Property Information Network
- MLS #
- 73589976
- Property type
- Single Family Residence
- Subdivision
- N/A
- Status
- Active
- Days on market
- 1
- On market date
- October 13, 2026
- Stories
- N/A
- Total bathrooms
- 3
- Garage spaces
- N/A
- Parking spaces
- N/A
- Lot size
- 0.02 acres
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
- 520
- Student:teacher ratio
- 11.8:1
- District
- Boston
- Enrollment
- 18
- Student:teacher ratio
- 9.0:1
- District
- Somerville
- Enrollment
- 821
- Student:teacher ratio
- 9.8:1
- 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). EPA National Walkability Index only -- nearby-amenity data not cached yet for this area.
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 22 hr 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.







