Just off iconic Chestnut Street, this exceptional Beacon Hill maisonette offers the rare combination of a private entrance, 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 Esplanade and all the shops and restaurants along Charles St.
Property Details
Price:
$1,695,000
MLS #:
73591995
Status:
Active
Beds:
2
Baths:
2
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
beaconhill
Listed Date:
Oct 16, 2026
Finished Sq Ft:
1,038
Total Sq Ft:
1,038
Lot Size:
1,038 sqft / 0.02 acres (approx)
Year Built:
1875
See this Listing
Schools
Interior
Above Grade Finished Area
1038
Bathrooms
2 Full Bathrooms
Cooling
Heat Pump
Fireplaces Total
1
Flooring
Flooring – Stone/Ceramic Tile
Heating
Baseboard
Interior Features
Closet, Entrance Foyer
Exterior
Accessibility Features
No
Architectural Style
Other (See Remarks)
Community Features
Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Conservation Area, Highway Access, T-Station
Construction Materials
Brick
Lot Features
Corner Lot
Financial
Tax Year
2025
Taxes
$16,885
Map
Community
- Address21 Walnut Boston MA
- CityBoston
- CountySuffolk
- Zip Code02108
Subdivisions in Boston
- Adams Village
- Ashmont Hill
- Ashmont Hill / Carruth Area
- Back Bay
- Bay Village
- Beacon Hill
- Bellevue Hill
- Boston
- Brighton-Oak Square
- Charlestown
- Chestnut Hill
- Chestnut Hill /Brookline line
- Chestnut Hill Park Condominium
- Clam Point Neighborhood
- Eight Streets Neighborhood
- Ellis South End Neighborhood
- Fairmount Hill
- Fields Corner
- Gas Light District
- Golf Course Neighborhood
- Harbor View
- Harborview
- Highland
- Hyde Park
- Jamaica Plain
- Lower Mills
- Melville Park
- Metropolitan Heights Area
- Metropolitan Hill
- Mission Hill – Longwood Medical
- Oak Square
- Parkway neighborhood
- Roslindale
- Roslindale – WC Bates
- roslindale village
- Roxbury’s Moreland Street Historic District
- Savin Hill: Minutes to Carson Beach/UMass Boston T-Stop
- South Boston
- Suffolk County
- Sumner Hill
- Thomas Park
- Woodbourne
Market Summary
Current real estate data for Single Family in Boston as of Oct 23, 2026
411
Single Family Listed
117
Avg DOM
658
Avg $ / SqFt
$1,891,135
Avg List Price
Property Summary
- 21 Walnut Boston MA is a Single Family for sale in Boston, MA, 02108. It is listed for $1,695,000 and features 2 beds, 2 baths, and has approximately 1,038 square feet of living space, and was originally constructed in 1875. The current price per square foot is $1,633. The average price per square foot for Single Family listings in Boston is $658. The average listing price for Single Family in Boston is $1,891,135. To schedule a showing of MLS#73591995 at 21 Walnut in Boston, MA, contact your Cornerstone Real Estate agent at 617-238-7400.
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Courtesy of Gibson Sotheby’s International Realty. The property listing data and information 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 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 set forth herein.
21 Walnut
Boston, MA