$1,800,000 ($1,734.10 per sqft)

Est. Mortgage $8,634/mo *

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Open House Schedule

07/16/2026
3:30 PM to 5:00 PM
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07/19/2026
1:00 PM to 2:30 PM
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21 Walnut, #M, Boston, (Beacon Hill), MA, 02108

21 Walnut, #M, Boston, (Beacon Hill), MA, 02108
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5 rooms

3 beds

2 Full baths

1875

1,038 sqft

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.

Status:

Active

Town:

Boston

Type:

Condo

Laundry Remarks:

In Unit

Units:

11

Zoning:

CD

Complex:

1-3 Chestnut Street

Heating:

Baseboard

Cooling:

Heat Pump

Basement:

N

Levels:

2

Parking:

On Street

Acreage:

0.02

Est. Taxes:

$16,885

Assessment

$1,458,100

HOA Fee

$1,001 Monthly

Construction

Brick

Amenities:

Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Conservation Area, Highway Access, T-Station

Pet Policy:

Yes w/ Restrictions

MLS #:

73549276

Community Info

School Info

Walk Score

Mass Transit

Yelp

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Listing courtesy of Rebecca Davis Tulman And Leslie Singleton Adam, Gibson Sotheby's International Realty