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191 Commonwealth Avenue PH61Boston, MA 02116

For Sale

$9,750,000

Smart Buyer Rebate $48,750

Gracious south-facing Back Bay penthouse in the historic Hotel Agassiz, an 1872 Gothic Revival landmark by Weston and Reed, one of Back Bay's first "French Flats" buildings. Enter via a marble octagonal lobby with door attendant service to this meticulously restored, sun-filled 4,072 square foot, 3-plus-bedroom, 3.5 bathroom residence. A grand, skylit foyer with white oak floors and fine millwork leads to a formal dining room and family room with marble fireplace, custom built-ins, and Commonwealth Ave Mall views. The chef's kitchen boasts a 10' marble island, custom cabinetry, Sub-Zero refrigerator, pantry, and dedicated wine cooler. A sun-splashed sitting room, study with marble fireplace, and guest bedroom suite complete one wing; a primary suite with walk-in closet and marble en-suite bath, plus a second en-suite bedroom, anchor the private quarters. Central AC, ground-floor storage, and bike storage included. Steps to Newbury Street and the Esplanade.

Last updated September 12, 2026

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Source: MLSPin #73572912

Listing Facts

  • TypeCondo
  • NeighborhoodBack Bay East
  • Bedrooms4
  • Bathrooms4
  • Days on Prevu7
  • HOA/Maint. Fees$3,491/month
  • Taxes$65,895/year
  • Size4,072 sqft
  • Price per sqft$2,394

Amenities

  • Air Conditioning
  • Parking

Location

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Listing History

09/08/2026
Listed by
$9,750,000
  1. 09/08/2026$9,750,000
    Listed by

Property Details for 191 Commonwealth Avenue PH61

Association

Amenities

  • Association Amenities: Elevator(s)

Fees

  • Association Fee: $3,491.00 Monthly
  • Association Fee Includes: Electricity, Water, Sewer, Insurance, Security, Maintenance Structure, Maintenance Grounds

Exterior

Construction

  • Number Of Units Total: 16
  • Stories: 1
  • Stories Total: 1
  • Year Built: 1899
  • Year Built Details: Approximate
  • Entry Level: 6

Measurements

  • Building Area Total: 4,072
  • Building Area Units: Square Feet
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 3351450
  • Tax Annual Amount: $65,895.00
  • Tax Assessed Value: $5,613,600.00
  • Tax Year: 2026

Interior

Features

  • Fireplace: Yes
  • Fireplaces Total: 3

Measurements

  • Living Area: 4,072
  • Living Area Source: Public Records

Rooms

  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 4
  • Rooms Total: 9

Parking

Parking

  • Open Parking Spaces: 1
  • Parking Features: Deeded
  • Parking Total: 1

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Central
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this condo have?

There are 4 bedrooms and 4 bathrooms in this condo at 191 Commonwealth Avenue PH61.

Does this condo have parking?

Yes, there is 1 parking space available for 191 Commonwealth Avenue PH61.

What are the annual taxes for 191 Commonwealth Avenue PH61?

Annual taxes for this condo are estimated at $65,895.

How does 191 Commonwealth Avenue PH61 compare to other condos in Back Bay East?

This condo is listed 130% above the average price for condos in Back Bay East and has been on the market for 88 less days than the typical home in this area.

What is the square footage on this condo?

According to the MLS, this listing is 4,072 sqft.

191 Commonwealth Avenue PH61 is a 4-bedroom, 4-bath condo for sale in Boston MA 02116. Listed on Prevu for 7 days at $9,750,000. This residence features 4,072 square feet of living space, located in Back Bay East. The median listing price for condos in this area is $3,200,000. Additional amenities include air conditioning and parking. Browse more condo listings in Boston.

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords and public records, and were compiled by MLS Property Information Network, Inc. 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, leasing or renting 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, leasing or renting. MLS Property Information Network, Inc. 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.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.