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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 Esplanade and all the shops and restaurants along Charles St.
Single-familyProperty Type
1875Year Built
1,038 sq ftLot Size
$1,633Price/Sq.Ft.
Listed by Rebecca Davis Tulman and Leslie Singleton Adam• Gibson Sotheby's International Realty
South Slope, located between Prospect Park and Greenwood Cemetery, is a residential and hillside Brooklyn neighborhood with brownstone blocks and pocket parks. The neighborhood’s character concentrates around 5th Avenue near 9th Street, where corner cafés, small groceries, and low-key bars keep the sidewalks active. Community pillars include the Old Stone House & Washington Park, the Brooklyn Conservatory of Music, and the Nitehawk Cinema. Rows of late-19th-century townhouses and limestone facades define the streetscape, with stoops and planted front yards setting a calm rhythm. The slope brings long views and a steady climb toward the park’s edge. A mix of local restaurants and everyday services lines the avenues without overwhelming the quieter side streets.
Provided by Walk Score and Local Logic
Offer insights
21 Walnut Unit M · $1,695,000
$1.71M and above
75% chance or better to win
Why $1.71M+ is a strong offer
DAYS ON MARKET
1 days
The average home goes pending in 33 days.
SALE-TO-LIST
98.5%
Most homes are selling 1% below list price.
About offer insights
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Dining
Interior features
Intercom
Entrance foyer
Closet
French doors
Bedrooms
2 bedrooms on the second floor
Skylights and closets in both bedrooms
Hardwood flooring in both bedrooms
Window seat in the second bedroom
Bathrooms
2 full bathrooms on the second floor
Kitchen
Stone or ceramic tile flooring
Flooring
Hardwood flooring in the living room
Heating & cooling
Baseboard heating
Heat pump cooling
Exterior features
Corner lot
Home design
Attached single-family residence
Construction
Brick construction
Brick and mortar foundation
Utilities
Public water
Public sewer
110-volt electric service
HOA & community
Community amenities include public transportation, shopping, tennis courts, parks, walk/jog trails, a medical facility, a bike path, a conservation area, highway access, and a T station
Electricity and solar
View estimated energy costs and solar savings for 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.
MLS PIN #72962211
Jun 15, 2022
Sold
$1,600,000
$1,541/sq ft
Apr 15, 2022
Contingent
—
Apr 5, 2022
Listed
$1,575,000
$1,517/sq ft
+28
Just off Chestnut Street, a block from the Boston Common, an ivy-cloaked garden courtyard arrives at the private outside entry to this rare and charmingly unique Beacon Hill maisonette which overlooks this lovely front courtyard and, on the other side, its own terrace. Plentiful windows and skylights brighten this refined, tastefully updated residence in a comfortable duplex floor-plan that gives the feel of a private single-family home and would also be a wonderful pied-a-terre. Capturing front-to-back views, the beautiful living room centers on a fireplace and opens to the terrace, also seen from the inviting dining room/study. The well-planned kitchen has stone counters and a GE Profile induction range. Looking out over the terrace, the primary bedroom suite features a closet-lined dressing area, radiant-heated marble bath and Miele washer/dryer. Three ductless air-conditioning systems; separate deeded storage. Desirable South Slope location near Back Bay and the Financial District.
MLS PIN #72490368
Aug 5, 2019
Sold
$1,775,000
$1,710/sq ft
May 8, 2019
Pending
—
Apr 30, 2019
Listed
$1,775,000
$1,710/sq ft
MLS PIN #71805570
Jun 1, 2015
Sold
$1,450,000
$1,397/sq ft
Apr 1, 2015
Pending
—
Mar 24, 2015
Listed
$1,285,000
$1,238/sq ft
As the MLS and public records start to fill up, we'll list the details here.
Public record
Beds
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Lot size
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Year renovated
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Finished Sq. Ft.
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Unfinished Sq. Ft.
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Total Sq. Ft.
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Year built
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Style
Single Family Residential
County
Suffolk County
APN
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Parking Spaces
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Basement
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Accessible
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HOA Dues
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Garage
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Features
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Last updated by owner on Oct 16, 2026.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
6/10 Heat Factor
7 days above 97° expected this year, 15 days in 30 years
6/10 Wind Factor
64% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Boston, MA • 02108
Average low and high temperatures (°F)
34
23
36
24
50
35
58
43
68
54
79
65
83
69
78
64
73
61
63
51
53
41
40
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
64/ 100
Moderate sunlight
Sunscore
This home receives average direct sun exposure in Boston. There appears to be some shading by surrounding buildings, terrain, and vegetation.
6.6 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 21 Walnut Unit M
$1,712,619
$18K over list price of $1.70M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $907K to $2.0M.