321 Commonwealth Ave # 40, Boston MA 02115
Boston, MA 02115 • Back Bay
$2,350,000
Est. $14,816/month
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About this home
On the sunny side of Commonwealth in a luxury building the bright and airy living/entertaining areas flow beautifully in an effortless open layout! Lofty ceilings contribute to the wonderful sense of space in a triple wide building. The home has expansive windows to take in the breathtaking Back Bay views. Wonderful layout grounded by stained hardwood floors. Framed in statuary marble the wood burning fireplace creates for focal point for gathering and living room space flowing into dining area with amazing natural light from the skylight above. The kitchen is beautifully outfitted with custom cabinetry, Dornbracht fixtures and Sub-zero appliances. Spacious Master Bedroom with walk-in closet and exquisite spa-like master bathroom with skylight, glass shower and Victoria & Albert soaking Tub. Upstairs you can find a private roof deck with fire pit hard plumed with natural gas and grill, perfect for entertaining. One parking spot included and an additional spot available for purchase.
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Recently Sold Nearby
Property History
Property Timeline
Listed for Sale
Sep 8, 2026
$2,350,000
Original listing
Agent: The Mazer Group
Office: Compass
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 09/08/2026 | 🏠 Listed for Sale | $2,350,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2026 | $17,524 | $1,608,800 |
Financial Details
Annual Property Tax
$17,524
Tax Year 2026
HOA Fee
$1,273
Monthly
Assessed Value
$1,608,800
Facts & Features
Central AC
Home Facts
Type
Residential
Style
Condominium
Year Built
1880
Living Area
1,425 sq ft
Lot Size
0.03 acres
Stories
1
Bedrooms
3
Full Baths
2
Total Rooms
5
Interior
Heating
Forced Air
Cooling
Central Air
Flooring
None
Appliances
Range, Oven, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Fireplace
None
Fireplaces
1
Basement
N
Laundry
In Unit
Features
None
Exterior
Construction
None
Architecture
None
Roof
Slate
Features
Deck - Roof
Pool
None
Spa
None
Fencing
None
Patio/Porch
Deck - Roof
Parking
Features
Deeded
Total Spaces
1
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
None
Financial
Annual Tax
$17,524
Assessed Value
$1,608,800
HOA & Community
HOA Fee
$1,273 Monthly
Fee Includes
Heat, Electricity, Gas, Water, Sewer
Amenities
Hot Water
Optional Fee Includes
None
Owner-Occupied Units
5
Pets
Yes
MA Disclosures
Lead Paint
Unknown
Seller Disclosures
Taxes Include A Residential Exemption.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["Brownstone"]
Unit/Building
40
Sq Ft Source
Measured
Documents
None
County
Suffolk
Property Overview
Property Type
Condominium
Listing Type
For Sale
Year Built
1880
Bedrooms
3
Full Bathrooms
2
Living Area
1,425 sq ft
Total Rooms
5
Stories
1
Entry Level
3
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,425 sq ft above grade
FeaturesYes
Display Options
Outdoor Areas
Patio & porchDeck - Roof
Room Markers
OOffice (1)
KKitchen (1)
BRBedroom (5)
BABathroom (4)
DDining (1)
LLiving (2)
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:
Appliances:
Range, Oven, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Interior Features:
Windows:
Basement:
N
Laundry:
In Unit
Security:
Intercom
Construction & Materials
Year Built:
1880
Structure Type:
Brownstone
Exterior Materials:
Roof:
Slate
Foundation:
Stories:
1
Heating, Cooling & Utilities
Heating:
Forced Air
Cooling:
Central Air
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Deck - Roof
Patio & Porch:
Deck - Roof
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Total Parking Spaces:
1
Parking Features:
Deeded
Special Features
Fireplaces:
1
Fireplace Type:
Community Amenities:
Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
Nearby Schools
School information not available for this location.
Monthly Payment Calculator
Monthly Payment
$0
Principal, interest, taxes & insurance
Loan Amount
$0
After down payment
Total Interest
$0
Over life of loan
Total Cost
$0
Including down payment
%
Down: $0
%
Monthly Payment Breakdown
Principal & Interest
$0
Property Tax
$1,460
Homeowners Insurance
$200
HOA Fee
$1,273/mo
PMI (if <20% down)
$0
Loan Summary
Total of 360 payments
$0
Total principal paid
$0
Total interest paid
$0
Rate Impact
-0.5% Rate
$0/mo
Save $0/mo
Current Rate
$0/mo
+0.5% Rate
$0/mo
Cost $0/mo
Payment Over Time
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
Back Bay
321 Commonwealth Ave # 40, Boston MA 02115
Boston, MA 02115
Listing Information
Listing Agent
The Mazer Group
Listing Office
Compass
Office Phone
617-206-3333
Agent MLS ID
TM356385
Office MLS ID
AN2383
Listing Data Updated
Sep 8, 2026 9:46 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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