21 Branch Street Boston, MA ^$ 3,495,000

21 Branch Street

^$ 3,495,000

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21 Branch Street

Boston, MA, 02108

^$ 3,495,000

Bedrooms2 Baths2.0 Sq 1,832

Monthly Estimate*

^$ 21,519

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Single Family Home for sale in Boston, MA

for $3,495,000 with 2 bedrooms and 2 full baths. This 1,832 square foot home was built in 1899 on a lot size of 0.02.

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!

Single Family Active

Price

^$ 3,495,000

Bedrooms

Full Bath

Property Type

Single Family

Taxes

^$ 37,985

Style

Carriage House

Lot Size

0.02

Year Built

1899

Town/City

Boston

County/Region

Suffolk

MLS | Web ID

73514647

List By

Rebecca Davis Tulman and Leslie Singleton Adam

Listing Agent

Gibson Sotheby's International Realty

Broker

Affordability Calculator

$24,685

Per Month

Monthly Principal & Interest: $21,519
Monthly Property Taxes: $3,165
Monthly Home Insurance: --

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Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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Nearby

Trends

Single family listings in Boston, MA

Average List Price ^$2,577,450

Percent of Sale Price 26%

About Boston, MA

685,111 Population

16% Since 2002

^$65,384 Median Income

34.81 Median Age

20% Households with Children

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Trends Information provided by ATTOM Data Solutions.

Neighborhood & Schools

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Pricing History

Date	Price	Price Change	Description
5/12/2026	$3,495,000		Listed Price

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21 Branch Street, Boston, MA, 02108 is a Single Family Home for sale at $3,495,000 with 1,832 sqft and a lot size of 0.02. 21 Branch Street has 2 bedrooms, 2.0 baths, and was built in 1899. The property's zip code is 02108 which is in Boston, MA

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Data is updated as of 6/10/2026.

The real estate information and related content displayed on this site is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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 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 or leasing 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 or leasing. 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.

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21 Branch Street

Single Family Home for sale in Boston, MA

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