FeaturesYes
18 Commonwealth Ave, Boston MA 02116
Boston, MA 02116 • Back Bay
$22,500,000
Est. $120,936/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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About this home
Situated on the coveted first block of Commonwealth Avenue, steps from the Public Garden, the historic Ward Mansion blends architectural grandeur with modern luxury. Built in 1864 and meticulously restored, this approximately 8,100-square-foot single-family offers six elevator-served levels, five en-suite bedrooms, and three powder rooms. Exquisite interiors feature custom millwork, quartersawn white oak floors, ornamental ironwork, and exceptional marble. A chef’s kitchen showcases Calacatta Vagli marble, Wolf and Sub-Zero appliances, and dual Cove dishwashers. Elegant living and dining rooms, a private library, and multiple fireplaces offer refined entertaining. The full-floor primary suite features dual dressing rooms and a marble bath with steam shower. An au pair suite and top-floor lounge with kitchenette and wine storage add versatility. A private roof deck with outdoor kitchen and skyline views, two-car garage, two additional parking spaces, and heated exterior pavers complete this rare Back Bay offering.
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Recently Sold Nearby
Price & Status History
Market Insights
65.1%
Price Range
1
Previous Sales
Property Timeline
Listed for Sale
Nov 10, 2026
$22,500,000
Original listing
Agent: Joshua Stephens
Office: Berkshire Hathaway HomeServices Warren Residential
Previous Transaction - MLS #73216421
Full transaction history available when tracking began
Previously Sold
Sep 10, 2024
$7,850,000
MLS #73216421
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 11/10/2026 | 🏠 Listed for Sale | $22,500,000 | - | - | Original listing |
| 09/10/2024 | 🏷️ Previously Sold | $7,850,000 | - | - | MLS #73216421 |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2026 | $83,561 | $6,738,800 |
Financial Details
Annual Property Tax
$83,561
Tax Year 2026
Assessed Value
$6,738,800
Facts & Features
2 Car Garage
Central AC
Home Facts
Type
Residential
Style
Single Family Residence
Year Built
1864
Living Area
8,101 sq ft
Lot Size
0.05 acres
Bedrooms
5
Full Baths
5
Half Baths
3
Total Rooms
15
Interior
Heating
Hydro Air
Cooling
Central Air
Flooring
Tile, Hardwood, Stone / Slate
Appliances
Range, Dishwasher, Refrigerator, Washer, Dryer
Fireplace
None
Fireplaces
3
Basement
Finished
Laundry
None
Features
None
Exterior
Construction
Brick
Architecture
Other (see Remarks)
Roof
Rubber
Features
Deck, Deck - Roof
Pool
None
Spa
None
Fencing
None
Patio/Porch
Deck, Deck - Roof
Parking
Garage Spaces
2
Has Garage
Yes
Features
Attached, Paved Drive, Off Street, Driveway
Total Spaces
4
Utilities
Electric
None
Water
Public
Sewer
Public Sewer
Gas
None
Other
For Gas Range
Financial
Annual Tax
$83,561
Assessed Value
$6,738,800
HOA & Community
Fee Includes
None
Amenities
None
Optional Fee Includes
None
MA Disclosures
Lead Paint
Unknown
Seller Disclosures
None
Additional Details
Possession
None
Accepted Financing
None
Structure Type
[]
House Color
Brownstone
Sq Ft Source
Measured
Documents
None
County
Suffolk
Property Overview
Property Type
Single Family Residence
Listing Type
For Sale
Year Built
1864
Bedrooms
5
Full Bathrooms
5
Half Bathrooms
3
Living Area
8,101 sq ft
Total Rooms
15
Floor Layout
Interactive room guide
Floor Layout
Finished Area
6,697 sq ft above grade
1,404 sq ft below grade
Display Options
Outdoor Areas
Patio & porchDeck, Deck - Roof
Room Markers
BABathroom (1)
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:
Tile, Hardwood, Stone / Slate
Appliances:
Range, Dishwasher, Refrigerator, Washer, Dryer
Interior Features:
Windows:
Insulated Windows
Basement:
Finished
Laundry:
Security:
Construction & Materials
Style:
Other (See Remarks)
Year Built:
1864
Structure Type:
Exterior Materials:
Brick
Roof:
Rubber
Foundation:
Concrete Perimeter, Brick/Mortar
Utilities & Systems
Heating:
Hydro Air
Heating Zones:
6
Cooling:
Central Air
Cooling Zones:
6
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Deck, Deck - Roof
Patio & Porch:
Deck, Deck - Roof
Fencing:
Other Structures:
Lot Features:
Road Surface:
Parking & Garage
Garage Spaces:
2
Garage Type:
Attached
Total Parking Spaces:
4
Parking Features:
Attached, Paved Drive, Off Street, Driveway
Special Features
Fireplaces:
3
Fireplace Type:
Community Amenities:
Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Highway Access, 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
$6,963
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
-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
18 Commonwealth Ave, Boston MA 02116
Boston, MA 02116
Listing Information
Listing Agent
Joshua Stephens
Listing Office
Berkshire Hathaway HomeServices Warren Residential
Office Phone
617-848-9616
Agent MLS ID
CN204754
Office MLS ID
AN2213
Listing Data Updated
Nov 10, 2026 7:27 AM EST
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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