LevelThird
40 Sullivan St, Boston MA 02129
Boston, MA 02129 • Charlestown
$1,799,000
Est. $10,908/month
Estimate assumptions
20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.
Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.
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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.
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Recently Sold Nearby
Price & Status History
Property Timeline
Listed for Sale
Oct 13, 2026
$1,799,000
Original listing
Agent: Jesse MacDonald
Office: Gibson Sotheby's International Realty
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 10/13/2026 | 🏠 Listed for Sale | $1,799,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2026 | $19,330 | $1,558,900 |
Financial Details
Annual Property Tax
$19,330
Tax Year 2026
Assessed Value
$1,558,900
Facts & Features
Home Facts
Type
Residential
Style
Single Family Residence
Year Built
1865
Living Area
1,970 sq ft
Lot Size
0.02 acres
Bedrooms
4
Full Baths
3
Total Rooms
8
Interior
Heating
Baseboard
Cooling
Ductless
Flooring
None
Appliances
None
Fireplace
None
Fireplaces
2
Basement
Partially Finished, Walk-out Access
Laundry
Second Floor
Features
None
Exterior
Construction
None
Architecture
Other (see Remarks)
Roof
None
Features
None
Pool
None
Spa
None
Fencing
None
Patio/Porch
None
Parking
Features
On Street
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$19,330
Assessed Value
$1,558,900
HOA & Community
Fee Includes
None
Amenities
None
Optional Fee Includes
None
MA Disclosures
Lead Paint
Unknown
Seller Disclosures
None
Additional Details
Possession
None
Accepted Financing
None
Structure Type
[]
Sq Ft Source
Public Record
Sq Ft Disclosures
Total living area square footage is approximate
Documents
None
County
Suffolk
Property Overview
Property Type
Single Family Residence
Listing Type
For Sale
Year Built
1865
Bedrooms
4
Full Bathrooms
3
Living Area
1,970 sq ft
Total Rooms
8
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,570 sq ft above grade
400 sq ft below grade
LevelThird
LevelThird
LevelSecond
LevelSecond
LevelSecond
LevelFirst
LevelFirst
LevelFirst
LevelBasement
LevelBasement
FeaturesYes
Display Options
Room Markers
KKitchen (1)
BRBedroom (4)
BABathroom (4)
DDining (1)
LLiving (2)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Appliances:
Interior Features:
Windows:
Basement:
Partially Finished, Walk-Out Access
Laundry:
Second Floor
Security:
Construction & Materials
Style:
Other (See Remarks)
Year Built:
1865
Structure Type:
Exterior Materials:
Roof:
Foundation:
Other
Utilities & Systems
Heating:
Baseboard
Cooling:
Ductless
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Patio & Porch:
Fencing:
Other Structures:
Lot Features:
Other
Road Surface:
Parking & Garage
Parking Features:
On Street
Special Features
Fireplaces:
2
Fireplace Type:
Community Amenities:
Public Transportation, Shopping, Park, Highway Access, Public School, T-Station
Nearby Schools
School information not available for this location.
Monthly Payment Calculator
Monthly Payment
$0
Principal, interest, taxes & insurance
Loan Amount
$0
After down payment
Total Interest
$0
Over life of loan
Total Cost
$0
Including down payment
%
Down: $0
%
Monthly Payment Breakdown
Principal & Interest
$0
Property Tax
$1,611
Homeowners Insurance
$200
PMI (if <20% down)
$0
Loan Summary
Total of 360 payments
$0
Total principal paid
$0
Total interest paid
$0
Rate Impact
-0.5% Rate
$0/mo
Save $0/mo
Current Rate
$0/mo
+0.5% Rate
$0/mo
Cost $0/mo
Payment Over Time
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.
Location
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Neighborhood
Charlestown
40 Sullivan St, Boston MA 02129
Boston, MA 02129
Listing Information
Listing Agent
Jesse MacDonald
Listing Office
Gibson Sotheby's International Realty
Office Phone
617-242-4222
Agent MLS ID
BB700098
Office MLS ID
BB9059
Listing Data Updated
Oct 13, 2026 4:32 PM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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