Listing Tools

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 StatusActive
  • Bathroom7
  • Parcel Number W:05 P:02887 S:000,4870656

Tax Information

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

Parking

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

Rooms

  • Bathrooms Total Decimal 6
  • Full Bath5
  • Half Baths2

Basic Information

  • List Price$38,000,000
  • MLS Number73517239
  • Modification Date05/16/2026
  • Property SubTypeSingle Family Residence

Location

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

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

Property

  • Acreage0.07

Interior

  • Interior Features Wet Bar, Elevator

Exterior

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

Utilities

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

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

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

Other

  • Date Listed05/13/2026
  • Farm Land Area Units Square Feet
  • View Count10

Map Location

Driving Directions

Listed by Antonio Khoury of Serhant

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from Castles Unlimited. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.