Listing Tools

A rare Back Bay masterpiece, this extraordinary Parisian-inspired Beaux Arts single-family residence on Commonwealth Avenue commands one of Boston’s most prestigious addresses with timeless grandeur and unrivaled scale. One of the famed “Commonwealth Avenue Sisters,” the home features a magnificent limestone faade, richly detailed interiors, ornate moldings, and dramatic entertaining spaces throughout, making it an unmatched jewel of the Back Bay neighborhood. Grand formal living and dining rooms, a stunning gourmet kitchen, and a sensational family room with Juliet balcony overlooking the Commonwealth Avenue Mall create an exceptional setting for both refined entertaining and everyday living. Complete with commercial elevator access to every floor, multiple private decks, 5+ bedrooms, 6 full and 3 half baths, and 2 heated garage and 4 heated outdoor parking, this is a singular opportunity to own one of Back Bay’s most iconic single-family residences.

More Info

Basic Information

  • Bedrooms5
  • Mls StatusNew
  • Bathroom9
  • Lot Features Other
  • Parcel Number W:05 P:01350 S:000,4758922

Tax Information

  • Tax Assessed Value $13,206,200
  • Tax Year 2026
  • Taxes$163,756

Parking

  • Parking Spaces6
  • Covered Spaces 2
  • Garage YN Yes
  • Parking Features Attached, Heated Garage, Off Street

Rooms

  • Bathrooms Total Decimal 7.5
  • Full Bath6
  • Half Baths3

Basic Information

  • List Price$34,990,000
  • MLS Number73577894
  • Modification Date09/16/2026
  • Property SubTypeSingle Family Residence

Location

  • NeighborhoodBack Bay
  • SubdivisionBack Bay
  • Address128 Commonwealth Avenue
  • Building Number128
  • CountySuffolk
  • StateMA
  • StreetCommonwealth Avenue
  • TownBoston
  • Zip02116

Building

  • Attached Garage YN Yes
  • BasementFull
  • Building Area Units Square Feet
  • FireplaceYes
  • Fireplaces Total 7
  • FoundationOther
  • Garage Spaces2
  • Patio And Porch Features Deck, Deck - Roof
  • Property StyleOther (See Remarks)
  • Rooms16
  • Year Built1882
  • Year Built Details Approximate, Renovated Since
  • Year Built Source Public Records

Property

  • Acreage0.07

Interior

  • Interior Features Wet Bar, Elevator

Exterior

  • Exterior Features Deck, Deck - Roof, Balcony, Professional Landscaping

Utilities

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

Property Information

  • Square Feet10,689
  • Building Area Source Measured
  • Living Area 10,689
  • Lot Size Square Feet 3,237
  • Lot Size Units Acres
  • Property Attached YN Yes

Amenities

  • Amenities
    • Highway Access
    • House of Worship
    • Medical Facility
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • Tennis Court(s)
    • University
    • Walk/Jog Trails

Legal

  • Zoning101

Other

  • Date Listed09/16/2026
  • Farm Land Area Units Square Feet
  • View Count2

Map Location

Driving Directions

Listed by Tracy Campion of Campion & Company Fine Homes Real Estate

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.