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21 Branch StreetBoston, MA 02108

For Sale

$3,495,000

Smart Buyer Rebate $17,475

Positioned on Beacon Hill's desirable South Slope, 21 Branch Street is a tastefully renovated single family carriage house featuring a rare private garage. With storybook views & beaming sunlight, this elegant home offers a charming private deck, 2 bedrooms plus an oversized den/ family room (or guest bdrm) & 2 bathrooms. The gracious entry foyer w/ marble floor sets the stage for this exceptional offering. The lovely formal living, dining & open concept kitchen offers an excellent layout & sun beams into the picturesque spaces where multiple exposures show surrounding architecture & gardens. The well-appointed kitchen features granite, notable appliances, eye catching light fixtures/hardware, and an inviting island. This floor is complemented by 2 fireplaces and 8 windows. The primary suite is the entire top floor w/ more incredible sunlight, a luxurious closet and bath & a front facing deck. Fabulous suite-like 2nd bed & bath w/fireplace offer complete privacy. Truly exceptional!

Listed by Rebecca Davis Tulman and Leslie Singleton Adam

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Gibson Sotheby's International Realty

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(617) 5105050

Last updated May 16, 2026

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Source: MLSPin #73514647

Listing Facts

  • TypeSingle-family
  • NeighborhoodSouth Slope
  • Bedrooms2
  • Bathrooms2
  • Days on Prevu34
  • Taxes$37,985.42/year
  • Size1,832 sqft
  • Price per sqft$1,908

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

05/12/2026
Listed by Gibson Sotheby's International Realty
$3,495,000

Property Details for 21 Branch Street

Association

Amenities

  • Community Features: Public Transportation, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Highway Access, T-Station, Other

Exterior

Construction

  • Property Attached: Yes
  • Roof: Rubber, Other
  • Year Built: 1899
  • Year Built Details: Approximate
  • Architectural Style: Carriage House, Other (See Remarks)
  • Construction Materials: Brick, See Remarks
  • Exterior Features: Balcony / Deck, Deck - Roof

Features

  • Patio And Porch Features: Deck - Roof

Measurements

  • Building Area Total: 1,832
  • Building Area Units: Square Feet
  • Lot Features: Gentle Sloping, Other
  • Lot Size Acres: 0.02
  • Lot Size Area: 0
  • Lot Size Square Feet: 797
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 3356343
  • Tax Annual Amount: $37,985.42
  • Tax Assessed Value: $3,034,000.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Range, Dishwasher, Disposal, Refrigerator, Freezer, Washer, Dryer
  • Fireplace: Yes
  • Fireplaces Total: 3
  • Flooring: Wood

Measurements

  • Living Area: 1,832
  • Living Area Source: Public Record

Rooms

  • Bathrooms Full: 2
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 2
  • Rooms Total: 6

Parking

Parking

  • Attached Garage: Yes
  • Covered Spaces: 1
  • Garage Spaces: 1
  • Garage: Yes
  • Parking Features: Attached
  • Parking Total: 1

Utilities

Equipment

  • Cooling: Central Air, Ductless
  • Has Cooling: Yes
  • Heating: Forced Air, Electric Baseboard
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Utilities: For Gas Range
  • Water Source: Public

Frequently Asked Questions

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

There are 2 bedrooms and 2 bathrooms in this single-family home at 21 Branch Street.

Does this single-family home have parking?

Yes, there is 1 parking space available for 21 Branch Street.

What are the annual taxes for 21 Branch Street?

Annual taxes for this single-family home are estimated at $37,985.

How does 21 Branch Street compare to other single-family homes in South Slope?

This single-family home is listed 64% below the average price for single-family homes in South Slope and has been on the market for 71 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 1,832 sqft.

21 Branch Street is a 2-bedroom, 2-bath single-family home for sale in Boston MA 02108. Listed on Prevu for 34 days at $3,495,000. This property features 1,832 square feet of living space, located in South Slope. The median listing price for single-family homes in this area is $7,747,500. Property amenities include private outdoor space, dishwasher, air conditioning, parking, and washer/dryer. View other 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.