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18 Commonwealth Avenue, Back BayBoston, MA 02116Price: $22,500,000

  • Price: $22,500,000
  • Est. Mortgage of $/month
  • 0 Day on Market
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Federal 30-year interest rate: 7.18% last updated on Nov 5, 2026
* All Figures are estimates. Check with your bank or proposed mortgage company for actual interest rates.
This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
  • $22,500,000List Price
  • 5Bedrooms
  • 8Bathrooms
  • 0.05Acreage
  • 8,101Square Feet

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Listed by Joshua Stephens of Berkshire Hathaway HomeServices Warren Residential
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.

Property Details of 18 Commonwealth Avenue, Back Bay

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The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. (MLSPIN) from third party sources, including sellers, lessors and public records, and were compiled by MLSPIN. The property listing data and information, and the Images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLSPIN and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

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