A Back Bay penthouse that lives like a townhouse. A private entry and a single flight of stairs bring you to the main level, and the primary suite is just one flight above, so day-to-day living stays on two floors. The top floor and a private roof deck are there whenever you want them. One of only two residences in a classic brownstone, with deeded parking. The main level is made for entertaining. A 21-foot living room opens to oversized bay windows over the tree-lined street, anchored by a gas fireplace in a warm wood surround with built-in shelving alongside. The dining room flows back to the kitchen, with custom cabinetry, a Wolf range, a Sub-Zero refrigerator and a generous center island made for gathering. One flight up, the primary floor is a true retreat: a bedroom with its own bay window, a dressing hall lined with built-in closets, and a five-piece marble bath with a tub and a separate shower. A second bedroom at the rear works beautifully as a guest room or office. The top floor adds two more bedrooms and two full baths, including a front bedroom with its own fireplace and wet bar that doubles as a media room or guest suite. Just above, the private roof deck, more than 300 square feet, takes in the Back Bay skyline and becomes an outdoor living room from spring through fall. Fully renovated, with 11-foot ceilings on the main and primary floors and 10-foot ceilings above, walnut-stained white oak floors, radiant heated bath floors, integrated sound, refined millwork, central air and in-unit laundry. Pet friendly, with Newbury Street and the Esplanade minutes away.
Property Details
Price:
$4,500,000
MLS #:
73598711
Status:
Active
Beds:
4
Baths:
3.5
Type:
Condo
Subtype:
Condominium
Neighborhood:
backbay
Listed Date:
Nov 4, 2026
Finished Sq Ft:
2,539
Total Sq Ft:
2,539
Lot Size:
2,539 sqft / 0.06 acres (approx)
Year Built:
1869
See this Listing
Schools
Interior
Above Grade Finished Area
2539
Appliances
Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer, Wine Refrigerator, Range Hood
Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Fireplaces Total
2
Flooring
Tile, Hardwood, Flooring – Stone/Ceramic Tile
Heating
Central
Interior Features
Bathroom – Full, Bathroom – Tiled With Tub & Shower, Lighting – Sconce, Bathroom, Wet Bar
Laundry Features
Electric Dryer Hookup, Washer Hookup, Third Floor, In Unit
Exterior
Common Walls
No One Above
Community Features
Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
Construction Materials
Brick
Exterior Features
Deck – Roof
Open Parking Spaces
1
Parking Features
Off Street, Deeded
Parking Spots
1
Parking Total
1
Patio And Porch Features
Deck – Roof
Roof
Rubber
Security Features
Intercom
Stories
3
Financial
HOA Fee
$951
HOA Fee Frequency
Monthly
HOA Includes
Water, Sewer, Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal, Reserve Funds
Tax Year
2026
Taxes
$45,975
Map
Community
- Address423 Beacon St # 2 Boston MA
- CityBoston
- CountySuffolk
- Zip Code02115
Subdivisions in Boston
- Adams Village
- Ashmont Hill
- Ashmont Hill / Carruth Area
- Ashmont Hill / Peabody Square
- Beacon Hill
- Bellevue Hill
- Boston
- Central JP
- Charlestown
- Clam Point
- Doctor’s Row
- Dorchester
- East Boston
- Fairmount Hill
- Forest Hills
- Fort Hill Highland Park
- Frederick Douglas Park South End
- George Wright Golf Course Neighborhood
- Harborview
- Highland
- Holy Name Parish neighborhood
- Hyde Park
- Jeffries Point
- Lower Mills
- Lower Mills and East Milton Square
- Melville Park
- Moss Hill
- Mount Hope
- Nubian Square
- Oak Square
- Oak Square Brighton/Newton Liine
- Orient Heights
- Over The Bridge – Savin Hill
- Peak Hill Neighborhood
- Pondside
- Pondside Jamaica Plain
- Readville
- Roslindale
- Roxbury
- Savin Hill OTB
- Savin Hill/JFK
- South Boston
- South Boston’s City Point
- Thompson Square
- Truman Parkway/ Monahan Park
- Ward 20
- Well Respected Hyde Park Neighborhood Area of Boston.
- West Roxbury
- Woodbourne
Market Summary
Property Summary
- 423 Beacon St # 2 Boston MA is a Condo for sale in Boston, MA, 02115. It is listed for $4,500,000 and features 4 beds, 4 baths, and has approximately 2,539 square feet of living space, and was originally constructed in 1869. The current price per square foot is $1,772. The average price per square foot for Condo listings in Boston is $988. The average listing price for Condo in Boston is $1,373,684. To schedule a showing of MLS#73598711 at 423 Beacon St # 2 in Boston, MA, contact your Cornerstone Real Estate agent at 617-238-7400.
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Courtesy of Compass. The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information 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. 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 set forth herein.
423 Beacon St # 2
Boston, MA

