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40 Sullivan StBoston, MA 02129

For Sale

$1,799,000

Smart Buyer Rebate $8,995

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.

Listed by Jesse MacDonald

·

Gibson Sotheby's International Realty

·

6176698449

Last updated October 17, 2026

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Source: MLSPin #73589976

Listing Facts

  • TypeSingle-family
  • NeighborhoodMedford Street - The Neck
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu18
  • Taxes$19,330/year
  • Size1,970 sqft
  • Price per sqft$913

Location

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Listing History

10/13/2026
Listed by Gibson Sotheby's International Realty
$1,799,000
  1. 10/13/2026$1,799,000
    Listed by Gibson Sotheby's International Realty

Property Details for 40 Sullivan St

Association

Amenities

  • Community Features: Park

Exterior

Construction

  • Property Attached: Yes
  • Year Built: 1865
  • Year Built Details: Approximate
  • Architectural Style: Other (See Remarks)

Measurements

  • Building Area Total: 1,970
  • Building Area Units: Square Feet
  • Lot Features: Other
  • Lot Size Acres: 0.02
  • Lot Size Area: 0
  • Lot Size Square Feet: 780
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: W:02 P:00911 S:000,1281288
  • Tax Annual Amount: $19,330.00
  • Tax Assessed Value: $1,558,900.00
  • Tax Year: 2026

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 2

Measurements

  • Living Area: 1,970
  • Living Area Source: Public Records

Rooms

  • Basement: Partially Finished, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 8

Parking

Parking

  • Open Parking: Yes
  • Parking Features: On Street

Utilities

Equipment

  • Cooling: Ductless
  • Has Cooling: Yes
  • Heating: Baseboard
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 40 Sullivan St.

What are the annual taxes for 40 Sullivan St?

Annual taxes for this single-family home are estimated at $19,330.

How does 40 Sullivan St compare to other single-family homes in Medford Street - The Neck?

This single-family home is listed 8% above the average price for single-family homes in Medford Street - The Neck and has been on the market for 50 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,970 sqft.

40 Sullivan St is a 4-bedroom, 3-bath single-family home for sale in Boston MA 02129. On Prevu for 18 days at $1,799,000. This residence features 1,970 square feet of living space, located in Medford Street - The Neck. The median listing price for single-family homes in this area is $1,137,500. Browse more single-family home listings in Boston.

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non commercial use of consumers having a good faith interest in purchasing, leasing or renting listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing, leasing or renting. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.