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Presenting 55 Commonwealth Avenue, a rare opportunity to acquire one of Back Bay's finest turnkey single-family homes, an address that rarely, if ever, comes to market. Spanning nearly 11,000 SF on the sunny side, this exceptional home offers a combination of scale, natural light, and turnkey living. Designed for both entertaining and everyday living, the home features formal living and dining rooms, an expansive family room, chef's kitchen, library, multiple offices,media room, catering kitchen, and a wellness level with fitness studio, and sauna. The residence offers 5+ bedrooms with multiple ensuite baths, three private terraces, nine fireplaces, temperature-controlled wine room, multiple laundry rooms, and a best-in-class elevator with access to every level. Complete with 2 private garage spaces and 1 gated outdoor space, this home stands as the only turnkey single-family residence available on the sunny side of the second block of Comm Ave, a genuine once-in-a-generation offering.

More Info

Basic Information

  • Bedrooms5
  • Mls StatusNew
  • Bathroom7
  • Parcel Number W:05 P:02887 S:000,4870656

Basic Information

  • List Price$38,000,000
  • MLS Number73517239
  • Modification Date05/13/2026
  • Property SubTypeSingle Family Residence

Property

  • Acreage0.07

Interior

  • Interior Features Wet Bar, Elevator

Exterior

  • Exterior Features Porch, Deck, Patio, Decorative Lighting, City View(s)
  • RoofSlate

Property Information

  • Square Feet10,803
  • Building Area Source Public Records
  • Living Area 10,803
  • Lot Size Square Feet 3,237
  • Lot Size Units Acres
  • Property Attached YN Yes
  • View YN Yes

Tax Information

  • Tax Assessed Value $11,994,500
  • Tax Year 2025
  • Taxes$138,896

Rooms

  • Bathrooms Total Decimal 6
  • Full Bath5
  • Half Baths2

Building

  • Attached Garage YN Yes
  • BasementFinished
  • Building Area Units Square Feet
  • FireplaceYes
  • Fireplaces Total 9
  • FoundationOther
  • Garage Spaces2
  • Levels Multi/Split
  • Patio And Porch Features Porch, Deck, Patio
  • Rooms17
  • Year Built1875
  • Year Built Details Renovated Since
  • Year Built Source Public Records

Other

  • Date Listed05/13/2026
  • Farm Land Area Units Square Feet
  • View Count1

Parking

  • Parking Spaces3
  • Covered Spaces 2
  • Garage YN Yes
  • Open Parking YN Yes
  • Parking Features Under, Paved

Location

  • NeighborhoodBack Bay
  • SubdivisionBack Bay
  • Address55 Commonwealth Avenue
  • Building Number55
  • CountySuffolk
  • StateMA
  • StreetCommonwealth Avenue
  • TownBoston
  • Zip02116

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Heat SystemYes
  • Heating Forced Air
  • Sewer Public Sewer
  • Water Source Public

Amenities

  • Amenities
    • Bike Path
    • Conservation Area
    • Highway Access
    • House of Worship
    • Marina
    • Medical Facility
    • Park
    • Pool
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • Tennis Court(s)
    • University
    • Walk/Jog Trails
  • Appliances IncludedRange, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
  • Security Features Security System

Map Location

Listed by Antonio Khoury of Serhant

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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