21 Walnut # M, Boston MA 02108

Boston, MA 02108 • Beacon Hill
$1,695,000
Est. $10,178/month
Estimate assumptions

20% down, a 30-year loan at 6.5%, and $200/month estimated insurance.

Includes the supplied property-tax and HOA inputs; missing inputs contribute $0. HOA fees with an unspecified frequency are treated as monthly. PMI and closing costs are excluded.

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2
Beds
2
Baths
1,038
Sq Ft
$1,633
Price/Sq Ft
0.02
Acres
1875
Year Built
New today
Time on Market
For Sale Open House Listed Oct 16, 2026 • MLS# 73591995 Copied! • Updated Oct 16, 2026

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Open House Schedule

18
Oct
Sunday, October 18
10:30 AM - 12:00 PM EDT

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 Esplanade and all the shops and restaurants along Charles St.

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Recently Sold Nearby

Price & Status History

Property Timeline

🏠
Listed for Sale
Oct 16, 2026
$1,695,000
Original listing
Agent: Rebecca Davis Tulman and Leslie Singleton Adam Office: Gibson Sotheby's International Realty

Tax History

Year Taxes Assessment
2025 $16,885 $1,458,100

Financial Details

Annual Property Tax
$16,885
Tax Year 2025
Assessed Value
$1,458,100

Facts & Features

Home Facts

Type Residential
Style Single Family Residence
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 None
Laundry None
Features Closet, Entrance Foyer

Exterior

Construction Brick
Architecture Other (see Remarks)
Roof None
Features None
Pool None
Spa None
Fencing None
Patio/Porch None
Features None
Electric 110 Volts
Water Public
Sewer Public Sewer
Gas None
Other None
Annual Tax $16,885
Assessed Value $1,458,100
Fee Includes None
Amenities None
Optional Fee Includes None
Lead Paint Unknown
Seller Disclosures Part Of The 1-3 Chestnut Street Condominium
Possession None
Accepted Financing None
Structure Type []
Sq Ft Source Public Record
Sq Ft Disclosures Front Courtyard shared with adjacent condo, courtyard at rear is private to this unit.
Documents None
County Suffolk

Property Overview

Property Type
Single Family Residence
Listing Type
For Sale
Year Built
1875
Bedrooms
2
Full Bathrooms
2
Living Area
1,038 sq ft
Total Rooms
5

Floor Layout

Interior Features

Flooring: Flooring - Stone/Ceramic Tile
Appliances:
Interior Features: Closet, Entrance Foyer
Windows:
Basement:
Laundry:
Security:

Construction & Materials

Style: Other (See Remarks)
Year Built: 1875
Structure Type:
Exterior Materials: Brick
Roof:
Foundation: Brick/Mortar

Utilities & Systems

Heating: Baseboard
Heating Zones: 1
Cooling: Heat Pump
Cooling Zones: 3
Hot Water:
Water Source: Public
Sewer: Public Sewer
Energy Features:

Exterior & Lot

Exterior Features:
Patio & Porch:
Fencing:
Other Structures:
Lot Features: Corner Lot
Road Surface:

Parking & Garage

Parking Features:

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
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
E

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
M

Middle Schools

1 school
B+
Darby Vassall Upper School
1.3 mi | #119 of 352 | Score: 47.6
Improved 25 spots from last year
-10.6 below state avg
296 students Very Diverse
Rising School Diverse Student Body
Grades 06-08
H

High Schools

3 schools
C-
Edward M. Kennedy Academy for Health Careers: A Horace Mann Charter Public School - Lower Campus
0.7 mi | #305 of 346 | Score: 37.2
Improved 19 spots from last year
-21 below state avg
424 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 | #279 of 346 | Score: 44.4
Dropped 7 spots from last year
-13.8 below state avg
575 students Very Diverse
12 sports • 208 athletes
Diverse Student Body
Grades 06-12
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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
PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0
Total principal paid $0
Total interest paid $0

Rate Impact

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Current Rate
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Payment Over Time

Interest
Principal
Year 1
95% Interest
Year 15
50/50
Year 30
95% Principal
* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.

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 Oct 16, 2026 5:21 PM 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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Steve Novak Real Estate
Steve Novak Real Estate
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