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Private-Entry Duplex Maisonette
For Sale
$1,800,000

21 Walnut, Boston, MA 02108

Historic two-level residence with landscaped outdoor space, updated kitchen finishes, and flexible den space.

Property SizeContact for details
Days on Market39

Property Features for 21 Walnut

General Information

Standard status Active
Property subtype Apartment

Additional Details

Multifamily Units 1

Amenities

private entrance
landscaped garden
secluded patio
fireplace
private terrace
stone countertops
custom cabinetry
stainless appliances
skylights
Heat Pump
1 Fireplace
Flooring - Stone/Ceramic Tile
Baseboard
2.0 Stories
$16,885 Taxes
Public
Built in 1875

Building Details

Year Built 1875
Listing Agency: Gibson Sotheby's International Realty
Listed By: Rebecca Davis Tulman and Leslie Singleton Adam
Source: Donahuere
Added: Jul 14 Changed: Aug 14 Last Checked: Aug 21 at 3:53AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Gibson Sotheby's International Realty

Investment Insights

Based on property information with market context.

This residential income property is configured as a duplex maisonette with a private entrance and a townhouse-style layout. The main level includes a living room with fireplace, a terrace connection, an updated kitchen with stone countertops, custom cabinetry, and stainless appliances, plus a den overlooking the garden. Two skylit bedrooms are located upstairs, and the residence features abundant windows and skylights for natural light.

Built in 1875, the property includes a landscaped garden and secluded patio. It is located at 21 Walnut in Boston’s 02108 ZIP code, just off Chestnut Street in the South Slope area of Beacon Hill.

Key Highlights

  • Duplex maisonette with private entrance and townhouse‑style configuration
  • Landscaped garden, secluded patio, and terrace access
  • Updated kitchen with stone countertops, custom cabinetry, and stainless appliances

Property Analytics

Current Use

Residential income properties

Suggested Use

Top Pick HVAC Service Butcher Clothing & Fashion Store Pet Grooming Service (Bike/Boat/Book/etc) Store Tanning Salon

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

1
Residential units

Location Intelligence

Trade Area within ½ mile

24,467
Businesses Nearby

Demographics for 02108, MA

4,228
Population
2,473
Households
1.7
Avg Household Size
38
Median Age
77%
College-Educated
100%
High-School Grad
0.3 sq mi
ZIP Area
14,093
Density / Sq Mi
$212,664
Median Household Income
$95,688
Median Earnings
$2,692
Median Rent
$1,570,400
Median Home Value
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Residential income property - Historic two-level residence with landscaped outdoor space, updated kitchen finishes, and flexible den space.
Where is this residential income property located?
The property is located at 21 Walnut Boston, MA.
What is the asking price?
The asking price for this property is $1,800,000.
What are key features of this property?
This property features: Duplex maisonette with private entrance and townhouse‑style configuration; Landscaped garden, secluded patio, and terrace access; Updated kitchen with stone countertops, custom cabinetry, and stainless appliances
More about this property
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