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$22,500,000 Just Listed
Property Description
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.
Full Property Details
Full Property Details for 18 Commonwealth Ave
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General
- Price: $22,500,000
- Taxes: $83,561 (2026)
- Status: Active
- Type: Single Family
- MLS ID: 73600506
- Updated: Today (11/10/2026)
- Added to Site: Today
Rooms
Bathrooms
- Total Bathrooms: 8
- Full Bathrooms: 5
- Half Bathrooms: 3
Bedrooms
- Total Bedrooms: 5
Parking
- Garage: Yes
- Garage Spaces: 2
- Parking Features: Attached, Paved Drive, Off Street, Driveway
Location
- County: Suffolk
Structural Information
- Architectural Style: Other (See Remarks)
- Basement: Yes
- Square Feet: 8,101
- Year Built: 1864
Lot Features
- Lot Size (Acres): 0.05
Financial Considerations
- Tax Amount: $83,561
- Tax Year: 2026
Disclosures and Reports
- Property ID: W:05 P:01219 S:000, 3358357
Listed by Berkshire Hathaway HomeServices Warren Residential, Joshua Stephens
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Schools
Schools serving 18 Commonwealth Ave
School District:Boston School District
| Name | Grades | Distance |
|---|---|---|
Josiah Quincy Elementary School 885 Washington Street, Boston, MA 02111 | PK-5 | 0.5 mi |
William Mckinley 90 Warren Avenue, Boston, MA 02116 | K-12 | 0.6 mi |
Blackstone Elementary School 380 Shawmut Avenue, Boston, MA 02118 | PK-5 | 0.8 mi |
Quincy Upper School 152 Arlington Street, Boston, MA 02116 | 6-12 | 0.4 mi |
Carter School 270 Columbia Road, Boston, MA 02121 | 6-12 | 1 mi |
O'Bryant School Math/Science 55 Malcolm X Boulevard, Boston, MA 02120 | 7-12 | 1.7 mi |
Snowden Int'L High School 150 Newbury Street, Boston, MA 02116 | 9-12 | 0.3 mi |
Boston Adult Academy 20 Church St, Boston, MA 02116 | 9-12 | 0.4 mi |
Madison Park High 75 Malcolm X Blvd, Boston, MA 02120 | 9-12 | 1.7 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 18 Commonwealth Ave
Date
Details
Price
Change
Source
11/10/2026
Listed
$22,500,000
186.62%
MLS
9/10/2024
Sold
$7,850,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 18 Commonwealth Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$32,620
10%
$2,816,900
4%
2024
$29,531
-2%
$2,709,300
-3%
2023
$30,061
2%
$2,799,000
3%
2022
$29,477
2%
$2,709,300
—
2021
$28,930
5%
$2,711,300
4%
2020
$27,577
2%
$2,611,500
2%
2019
$27,072
5%
$2,568,500
4%
2018
$25,797
2%
$2,461,500
3%
2017
$25,384
3%
$2,397,000
7%
2016
$24,723
-1%
$2,247,500
9%
2015
$24,880
9%
$2,054,500
13%
2014
$22,927
—
$1,822,500
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 18 Commonwealth Ave
18 Commonwealth Ave, Boston, MA 02116 (MLS# 73600506) is a Single Family property with 5 bedrooms, 5 full bathrooms and 3 partial bathrooms. 18 Commonwealth Ave is currently listed for $22,500,000 and was received on November 10, 2026. Want to learn more about 18 Commonwealth Ave? Do you have questions about finding other Single Family real estate for sale in Back Bay? You can browse all Back Bay real estate or contact a Coldwell Banker agent to request more information.