Dimensions9 x 6
FeaturesBathroom - Full
LevelSecond
21 Walnut # M, Boston MA 02108
Boston, MA 02108 • Beacon Hill
$1,800,000
Est. $11,710/month
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About this home
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 Charles River,Esplanade and all and restaurants along nearby Charles St and the Back Bay.
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Recently Sold Nearby
Property History
Property Timeline
Listed for Sale
Jul 14, 2026
$1,800,000
Original listing
Agent: Rebecca Davis Tulman and Leslie Singleton Adam
Office: Gibson Sotheby's International Realty
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 07/14/2026 | 🏠 Listed for Sale | $1,800,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $16,885 | $1,458,100 |
Financial Details
Annual Property Tax
$16,885
Tax Year 2025
HOA Fee
$1,001
Monthly
Assessed Value
$1,458,100
Facts & Features
Home Facts
Type
Residential
Style
Condominium
Year Built
1875
Living Area
1,038 sq ft
Lot Size
0.02 acres
Bedrooms
2
Full Baths
2
Total Rooms
5
Interior
Heating
Baseboard
Cooling
Heat Pump
Flooring
Flooring - Stone/ceramic Tile
Appliances
None
Fireplace
Living Room
Fireplaces
1
Basement
N
Laundry
In Unit
Features
Closet, Entrance Foyer
Exterior
Construction
Brick
Architecture
None
Roof
None
Features
Courtyard, Patio - Enclosed, Garden
Pool
None
Spa
None
Fencing
Security
Patio/Porch
Patio - Enclosed
Parking
Features
On Street
Utilities
Electric
110 Volts
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$16,885
Assessed Value
$1,458,100
HOA & Community
HOA Fee
$1,001 Monthly
Fee Includes
Heat, Water, Sewer, Insurance, Snow Removal
Amenities
Hot Water
Optional Fee Includes
None
Pets
Yes w/ Restrictions
MA Disclosures
Seller Disclosures
None
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["Townhouse"]
Unit/Building
M
Sq Ft Source
Public Record
Sq Ft Disclosures
Front Courtyard shared with adjacent condo, courtyard at rear is private to this unit.
Documents
Floor Plans (1)
County
Suffolk
Total market time (incl. prior listings)
6 days
Property Overview
Property Type
Condominium
Listing Type
For Sale
Year Built
1875
Bedrooms
2
Full Bathrooms
2
Living Area
1,038 sq ft
Total Rooms
5
Stories
2
Entry Level
1
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,038 sq ft above grade
Dimensions6 x 5
FeaturesBathroom - Full, Bathroom - With Shower Stall
LevelSecond
Dimensions9 x 13
FeaturesSkylight, Closet, Flooring - Hardwood, Window Seat
LevelSecond
Dimensions14 x 11
FeaturesSkylight, Closet, Flooring - Hardwood
LevelSecond
Dimensions11 x 14
LevelFirst
Dimensions11 x 15
FeaturesFlooring - Stone/Ceramic Tile
LevelFirst
Dimensions12 x 18
FeaturesFlooring - Hardwood, French Doors, Exterior Access
LevelFirst
FeaturesYes
Display Options
Outdoor Areas
Patio & porchPatio - Enclosed
Room Markers
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Flooring - Stone/Ceramic Tile
Appliances:
Interior Features:
Closet, Entrance Foyer
Windows:
Basement:
N
Laundry:
In Unit
Security:
Intercom
Construction & Materials
Year Built:
1875
Structure Type:
Townhouse
Exterior Materials:
Brick
Roof:
Foundation:
Stories:
2
Heating, Cooling & Utilities
Heating:
Baseboard
Cooling:
Heat Pump
Cooling Zones:
3
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Courtyard, Patio - Enclosed, Garden
Patio & Porch:
Patio - Enclosed
Fencing:
Security
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Parking Features:
On Street
Special Features
Fireplaces:
1
Fireplace Type:
Living Room
Community Amenities:
Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Conservation Area, Highway Access, T-Station
Nearby Schools
School District
Boston School District local
C-
Where Graduates Go
Class of 2021
52%
attend college
38%
4-Year
14%
2-Year
7%
Out of State
7%
Working
School Safety
2024-25
3.7%
Above Average
3.2%
Suspensions
0.3%
In-School
0.5%
Emergency
1.8% below state avg
Elementary Schools
3 schools
Advent School
0.3 mi
Grades K-06
Park Street School
0.3 mi
Grades K-07
The Learning Project
0.6 mi
Grades K-06
Middle Schools
1 school
B+
Darby Vassall Upper School
1.3 mi
|
#118 of 352
|
Score: 47.5
Improved 26 spots from last year
-10.7 below state avg
298 students
Very Diverse
Rising School
Diverse Student Body
Grades 06-08
High Schools
3 schools
C-
Edward M. Kennedy Academy for Health Careers: A Horace Mann Charter Public School - Lower Campus
0.7 mi
|
#307 of 346
|
Score: 36.8
Improved 17 spots from last year
-21.4 below state avg
383 students
Diverse
High Graduation Rate
Career Tech Programs
College Ready Curriculum
Grades 09-11
Commonwealth School
0.7 mi
Grades 09-12
C
Quincy Upper School
0.7 mi
|
#268 of 346
|
Score: 44.6
Improved 4 spots from last year
-13.6 below state avg
557 students
Very Diverse
12 sports
• 208 athletes
High Graduation Rate
Diverse Student Body
Grades 06-12
Learn about these ratings
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Including down payment
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Down: $0
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Monthly Payment Breakdown
Principal & Interest
$0
Property Tax
$1,407
Homeowners Insurance
$200
HOA Fee
$1,001/mo
PMI (if <20% down)
$0
Loan Summary
Total of 360 payments
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Rate Impact
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Payment Over Time
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
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Location
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Neighborhood
Beacon Hill
21 Walnut # M, Boston MA 02108
Boston, MA 02108
Listing Information
Listing Agent
Rebecca Davis Tulman and Leslie Singleton Adam
Listing Office
Gibson Sotheby's International Realty
Office Phone
857-310-5632
Agent MLS ID
TM348767
Office MLS ID
AN7429
Listing Data Updated
Jul 20, 2026 11:07 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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