21 Walnut #M, Boston, MA 02108 - Photo 1

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$1,800,000 Just Listed

For Sale
Active
Townhouse
3 Beds
2 Full Baths
1,038 Sq. Ft.
0.02 Acres
Updated 8 hours ago

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Thursday 7/16 3:30 PM - 5:00 PM

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Join us at 21 Walnut #M on:

Open House: 1:00 PM - 2:30 PM
Sunday 7/19 1:00 PM - 2:30 PM
21 Walnut #M,Boston, MA 02108
21 Walnut #MBostonMA02108

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Property Description

Just off iconic Chestnut Street, this exceptional Beacon Hill maisonette offers the rare combination of a private entrance, lush landscaped garden, and secluded patio in the coveted South Slope. Rich in architectural detail and filled with natural light from abundant windows and skylights, this elegant duplex lives like a private townhouse. The fireplaced living room opens to the private terrace, while the beautifully updated kitchen features stone countertops, custom cabinetry, and stainless appliances. A spacious den overlooking the garden provides an ideal home office or dining area. Upstairs are two generous skylit bedrooms, including a tranquil primary suite with large closets and a marble bath with radiant heated floors. Hardwood floors, Miele washer/dryer, air conditioning, and deeded storage complete this rare offering, just moments from Boston Common, the Public Garden, the Charles River,Esplanade and all and restaurants along nearby Charles St and the Back Bay.

Full Property Details

Full Property Details for 21 Walnut #M

General

Price: $1,800,000
HOA FEE: $1,001/month
Taxes: $16,885 (2025)
Status: Active
Type: Townhouse
MLS ID: 73549276
Updated: Today (7/14/2026)
Added to Site: Today

Rooms

Bathrooms

Total Bathrooms: 2
Full Bathrooms: 2
Bathroom 1: 9.00 x 6.00, Second
Bathroom 2: 6.00 x 5.00, Second

Bedrooms

Total Bedrooms: 3
Primary Bedroom: 14.00 x 11.00, Second
Bedroom 2: 9.00 x 13.00, Second

Other Rooms

Living Room: 12.00 x 18.00, First
Kitchen: 11.00 x 15.00, First
Dining Room: 11.00 x 14.00, First

Parking

Parking Features: On Street

Location

County: Suffolk

Structural Information

Basement: Yes
Stories/Levels: 2
Square Feet: 1,038
Year Built: 1875

Lot Features

Lot Size (Acres): 0.02

Financial Considerations

Association Fee: $1,001
Tax Amount: $16,885
Tax Year: 2025

Disclosures and Reports

Property ID: W:05 P:01573 S:006, 4758964

Listed by Gibson Sotheby's International Realty, Rebecca Davis Tulman and Leslie Singleton Adam

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Listing agent

— 21 Walnut #M —

Rebecca Davis Tulman and Leslie Singleton Adam

Gibson Sotheby's International Realty

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Schools

Schools serving 21 Walnut #M

School District:Boston School District

Name	Grades	Distance
Josiah Quincy Elementary School 885 Washington Street, Boston, MA 02111	PK-5	0.7 mi
Eliot K-8 Innovation School 16 Charter Street, Boston, MA 02113	PK-8	0.9 mi
William Mckinley 90 Warren Avenue, Boston, MA 02116	K-12	1 mi
Quincy Upper School 152 Arlington Street, Boston, MA 02116	6-12	0.7 mi
Carter School 270 Columbia Road, Boston, MA 02121	6-12	1.5 mi
Charlestown High School 240 Medford Street, Boston, MA 02129	9-12	1.6 mi
Boston Adult Academy 20 Church St, Boston, MA 02116	9-12	0.6 mi
Snowden Int'L High School 150 Newbury Street, Boston, MA 02116	9-12	0.8 mi
Excel High School 95 G. Street, Boston, MA 02127	9-12	2 mi

Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 21 Walnut #M Get Price Alerts and Save Property

Date

Details

Price

Change

Source

7/14/2026

Listed

$1,800,000

12.5%

MLS

6/15/2022

Sold

$1,600,000

—

Public Record

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Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History

Tax History for 21 Walnut #M

Year

Property Taxes

Change

Tax Assessment

Change

2025

100%

2024

100%

2023

100%

2022

100%

2020

100%

2019

100%

2018

100%

2014

—

Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost

Estimate the Cost for 21 Walnut #M

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21 Walnut #M, Boston, MA 02108 (MLS# 73549276) is a Townhouse property with 3 bedrooms and 2 full bathrooms. 21 Walnut #M is currently listed for $1,800,000 and was received on July 14, 2026. Want to learn more about 21 Walnut #M? Do you have questions about finding other Townhouse real estate for sale in Beacon Hill? You can browse all Beacon Hill real estate or contact a Coldwell Banker agent to request more information.

21 Walnut #M Boston, MA 02108