9 Walnut St Boston, MA ^$ 8,750,000

9 Walnut St

^$ 8,750,000

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9 Walnut St

Boston, MA, 02108

^$ 8,750,000

Bedrooms5 Baths4.2 Sq 6,082

Monthly Estimate*

^$ 54,589

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Single Family Home for sale in Boston, MA

for $8,750,000 with 5 bedrooms and 4 full baths, 2 half baths. This 6,082 square foot home was built in 1899 on a lot size of 0.03.

Grand and wide South Slope single family townhouse with elevator to every floor! This gracious ultra wide Beacon Hill home has been fully renovated and upgraded with many recent capital improvements to systems and structure. Offering 5+ bedrooms, 4 full and 2 half baths, this wonderful home has an excellent scale with enormous floor to ceiling windows, soaring ceiling heights on every floor, a level and wide staircase and a large elevator. A parlor level eat in kitchen has ample storage, top-of-the-line appliances and access to a deck and an enclosed garden. Opposite the eat-in kitchen is a large formal dining room with views of Walnut St and a fireplace. A grand "Piano Nobile" is ideal for entertaining with its enormous scale, oversized windows and gas fireplace. A primary suite has ample closet space and an attached marble bath. 4 guest suites share 3 full baths and a full staircase leads to a captivating roof top deck with sensational views of Boston and The Charles River!

Single Family Active

Price

^$ 8,750,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 91,504

Style

Federal

Lot Size

0.03

Year Built

1899

Town/City

Boston

County/Region

Suffolk

MLS | Web ID

73430657

List By

Michael Harper

Listing Agent

Coldwell Banker Realty - Boston

Broker

Affordability Calculator

$62,214

Per Month

Monthly Principal & Interest: $54,589
Monthly Property Taxes: $7,625
Monthly Home Insurance: --

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Default based on a 30-year fixed rate of 6.375% 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 ^$2,410,875

Percent of Sale Price 72%

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
9/15/2025	$8,750,000		Listed Price

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9 Walnut St, Boston, MA, 02108 is a Single Family Home for sale at $8,750,000 with 6,082 sqft and a lot size of 0.03. 9 Walnut St has 5 bedrooms, 4.2 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 6.375% 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 12/13/2025.

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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9 Walnut St

Single Family Home for sale in Boston, MA

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