Primary bedroom
- Level
- Second
- Area
- 154 sqft
- Length
- 14 ft
- Width
- 11 ft
- Features
- Skylight · Closet · Flooring - Hardwood
21 Walnut #Maisonette · Boston
For sale
FOR SALE · MLS #73591995
$1,695,000
- beds
- 2
- baths
- 2
- sqft
- 1,038
21 Walnut #Maisonette
Boston, MA 02108
LOCATION
Property location
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21 Walnut #Maisonette, Boston, MA 02108Open Street View
On Walnut St between Mt Vernon and Chestnut Streets
- Home type
- Single Family Residence
- Interior living area
- 1,038 sqft
- Year built
- 1875
- Lot size
- 1,038 sqft (about 0.02 acres)
- Parking spaces
- 0
- Price per sqft
- $1,633/sqft
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.
Listed by Rebecca Davis Tulman and Leslie Singleton Adam · Gibson Sotheby's International Realty
MLS PIN #73591995 · Updated 10/21/2026, 2:37:00 PM ET
Facts & features
Home overview
- Property subtype
- Single Family Residence
- Property category
- Residential
- MLS status
- Active
- Bedrooms
- 2
- Full bathrooms
- 2
- Half bathrooms
- 0
- Total bathrooms
- 2
- Total rooms
- 5
- Living area
- 1,038 sqft
- Living area source
- Public Record
- Above grade finished area
- 1,038 sqft
- Building area
- 1,038
- Building area units
- Square Feet
- Building area source
- Public Records
- Area includes basement
- No
- Area disclosures
- Front Courtyard shared with adjacent condo, courtyard at rear is private to this unit.
Interior & systems
- Heating
- Baseboard
- Heating available
- Yes
- Heating zones
- 1
- Cooling
- Heat Pump
- Cooling available
- Yes
- Cooling zones
- 3
- Flooring
- Flooring - Stone/Ceramic Tile
- Interior features
- Closet · Entrance Foyer
- Fireplace
- Yes
- Fireplaces
- 1
- Fireplace features
- Living Room
- Electrical service
- 110 Volts
- Other equipment
- Intercom
- Accessibility
- No
- Doors
- French Doors
- Primary bathroom features
- Yes
Room details
Bedroom 2
- Level
- Second
- Area
- 117 sqft
- Length
- 9 ft
- Width
- 13 ft
- Features
- Skylight · Closet · Flooring - Hardwood · Window Seat
Living room
- Level
- First
- Area
- 216 sqft
- Length
- 12 ft
- Width
- 18 ft
- Features
- Flooring - Hardwood · French Doors · Exterior Access
Dining room
- Level
- First
- Area
- 154 sqft
- Length
- 11 ft
- Width
- 14 ft
Kitchen
- Level
- First
- Area
- 165 sqft
- Length
- 11 ft
- Width
- 15 ft
- Features
- Flooring - Stone/Ceramic Tile
Bathroom 1
- Level
- Second
- Area
- 54 sqft
- Length
- 9 ft
- Width
- 6 ft
- Features
- Bathroom - Full
Bathroom 2
- Level
- Second
- Area
- 30 sqft
- Length
- 6 ft
- Width
- 5 ft
- Features
- Bathroom - Full · Bathroom - With Shower Stall
Construction & condition
- Year built
- 1875
- Year built source
- Public Records
- Year built details
- Actual
- Architectural style
- Other (See Remarks)
- Construction materials
- Brick
- Foundation
- Brick/Mortar
- Attached property
- Yes
- Home warranty
- No
- Accessory dwelling unit
- N
- Year round use
- Yes
Garage & parking
- Total parking spaces
- 0
- Garage
- No
- Garage spaces
- 0
- Covered spaces
- 0
- Open parking spaces
- 0
Lot & outdoor features
- Lot area
- 1,038 sqft (about 0.02 acres)
- Lot size
- 0.02 acres
- Reported lot area
- 0.02
- Lot size units
- Acres
- Lot features
- Corner Lot
- Spa
- No
- Waterfront
- No
- Beachfront
- No
- Water views
- No
Utilities & infrastructure
- Water source
- Public
- Sewer
- Public Sewer
HOA & community
- Homeowners association
- No
- Community features
- Public Transportation · Shopping · Tennis Court(s) · Park · Walk/Jog Trails · Medical Facility · Bike Path · Conservation Area · Highway Access · T-Station
- Senior community
- No
Taxes & property records
- Annual property tax
- $16,885
- Tax year
- 2025
- Assessed value
- $1,458,100
- Parcel number
- W:05 P:01573 S:006,4758964
- Zoning
- CD
- Registry book
- 54534
- Registry page
- 237
Location & listed schools
- City
- Boston
- County
- Suffolk
- State
- MA
- ZIP code
- 02108
- MLS area
- Beacon Hill
- Directions
- On Walnut St between Mt Vernon and Chestnut Streets
Listing & disclosures
- MLS number
- 73591995
- Listing date
- 2026-10-16
- Original entry date
- 2026-10-16
- Status changed
- 2026-10-16
- Listing modified
- 2026-10-21
- Original list price
- $1,695,000
- Current list price
- $1,695,000
- List price per sqft
- $1,632.95
- Days on market
- 5
- Property market time
- 5
- Disclosures
- Part of the 1-3 Chestnut Street Condominium
- Disclosure indicator
- N
- Lead paint
- Unknown
Price & tax details
Current asking price$1,695,000
Original asking price$1,695,000
Listed on2026-10-16
Days on market5
| Year | Property tax | Assessed value |
|---|---|---|
| 2025 | $16,885 | $1,458,100 |
These records are supplied by the current listing. Assessed value is not market value; confirm taxes with the local assessor.
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SCHOOLS & EDUCATION
Schools & performance
School names, grades and state-reported measures are listed below.
This listing does not name individual schools. Public school information below is context, not an attendance assignment for this address.
Nearby public schools
Sorted by straight-line distance within the city. These are not attendance boundaries or a guarantee of enrollment.
24DESE percentile
Nearby public school · not assigned
Boston Arts Academy
Grades 9 · 10 · 11 · 12
Straight-line distance 0.30 km
Progress toward targets 20%
—DESE percentile
Nearby public school · not assigned
Boston Adult Tech Academy
Grades 11 · 12
Straight-line distance 1.04 km
DESE does not report a percentile for this school.
71DESE percentile
Nearby public school · not assigned
Quincy Elementary School
Grades PK · K · 1 · 2 · 3 · 4 · 5
Straight-line distance 1.11 km
Progress toward targets 62%
37DESE percentile
Nearby public school · not assigned
Quincy Upper School
Grades 6 · 7 · 8 · 9 · 10 · 11 · 12
Straight-line distance 1.16 km
Progress toward targets 43%
7DESE percentile
Nearby public school · not assigned
Snowden International High School
Grades 9 · 10 · 11 · 12
Straight-line distance 1.26 km
Progress toward targets 19%
85DESE percentile
Nearby public school · not assigned
Eliot K-8 Innovation School
Grades PK · K · 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8
Straight-line distance 1.40 km
Progress toward targets 58%
MLS school names do not guarantee attendance. Assignment can vary by school year, grade and admissions policy; confirm with the district before committing.
What do these numbers mean?
DESE accountability percentiles (1–99) compare schools administering similar assessments, using up to two years of indicators. These are not test scores out of 100 or GreatSchools 1–10 ratings. Progress toward targets is a separate state measure. Consider programs, support services and your child’s needs as well.
School names link to available school or district websites.
Information is deemed reliable but is not guaranteed. © 2026 MLS Property Information Network, Inc. All rights reserved.
Listings updated