NOT LISTED FOR SALE

20 Beacon St Unit Penthouse Boston, MA 02108

Downtown Boston Neighborhood
3 Beds
5 Baths
3,787 Sq Ft
3,485 Sq Ft Lot

Sale Details

Date Sold: March 17, 2026

Last sale price $5,100,000 $1,347 Per Sq Ft

148 Days on Market

Highlights

  • Medical Services
  • 2-minute walk to Park Street Station
  • Property is near public transit
  • Sauna
  • Deck
  • 4-minute walk to Temple Street Park

About This Home

As of March 2026

This stately penthouse at 20 Beacon Street spans 3,787 SqFt across a distinguished 2-level layout w/ 3 bedrooms + 5 total bathrooms. A meticulous 2018 renovation honors the building’s 1820 heritage, w/ hand-cast ceiling moldings echoing the original facade and refined herringbone flooring underfoot. Architectural artistry defines the living areas, where Louis XV and Victorian marble mantles serve as sculptural focal points. The master suite unfolds into a serene sanctuary with a bespoke Poliform walk-in closet, a radiant Carrara marble bath with steam shower, soaking tub, and an adjacent custom cedar sauna. Each ensuite bathroom is appointed with warm marble and fixtures exuding timeless refinement. Upstairs, a tailored Poliform bar framed by Art Deco lighting flows onto a terrace envisioned by Winston Flowers—its curated plantings, automated irrigation, and a gas grill define a private oasis above the city. This residence seamlessly fuses architectural legacy with contemporary luxury.

Last Agent to Sell the Property

Michael Carucci

Serhant Listed on: 09/08/2025

Last Buyer's Agent

Stephanie Crawford

Real Broker MA, LLC

Real Broker MA, LLC

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $68,137

Year Built

  • Built in 1899

Lot Details

  • 3,485

HOA Fees

  • $1,449 Monthly HOA Fees

Parking

  • 1 Car Garage
  • Rented or Permit Required

Home Design

  • Entry on the 6th floor

Interior Spaces

  • 3,787 Sq Ft Home
  • 2-Story Property
  • 4 Fireplaces
  • Sauna
  • Intercom
  • Laundry in unit

Bedrooms and Bathrooms

  • 3 Bedrooms

Additional Features

  • Deck
  • Property is near public transit
  • Forced Air Heating and Cooling System

Listing and Financial Details

  • Assessor Parcel Number W:03 P:04688 S:032,3367439

Community Details

Overview

  • Association fees include water, sewer, insurance, snow removal
  • 5 Units
  • Mid-Rise Community

Amenities

  • Medical Services
  • Shops
  • Elevator

Recreation

  • Park
  • Jogging Path
  • Bike Trail

Pet Policy

  • Pets Allowed

Property Details

Home Type

Condominium

Est. Annual Taxes

$68,137

Year Built

Built in 1899

Lot Details

3,485 Sq Ft Lot

HOA Fees

$1,449 per month

Parking

1

Listing Details

  • Property Type: Residential
  • Property Sub Type: Condominium
  • Structure Type: Mid-Rise
  • Year Built: 1899
  • Entry Level: 6
  • Year Built Details: Approximate
  • MLSPIN_BEACHFRONT_FLAG: No
  • Special Features: None
  • Stories: 2

Interior Features

  • Interior Amenities: Sauna/Steam/Hot Tub
  • Fireplace YN: Yes
  • Fireplaces: 4
  • Total Bedrooms: 3
  • Basement YN: No
  • Full Bathrooms: 3
  • Half Bathrooms: 2
  • Total Bathrooms: 5
  • Laundry Features: In Unit
  • Basement: N
  • Above Grade Finished Sq Ft: 3787
  • Living Area: 3787
  • Spa YN: No
  • Stories Total: 2
  • MAIN LO: AN9455
  • MAIN SO: AN4866

Exterior Features

  • Exterior Features: Deck - Roof
  • Home Warranty YN: No
  • Patio And Porch Features: Deck - Roof
  • Waterfront YN: No

Garage/Parking

  • Garage Spaces: 1
  • Covered Parking Spaces: 1
  • Garage YN: Yes
  • Parking Features: Rented
  • Total Parking Spaces: 1

Utilities

  • Sewer: Public Sewer
  • Cooling: Central Air
  • Heating: Forced Air
  • Cooling Y N: Yes
  • Heating YN: Yes
  • Security Features: Intercom
  • Water Source: Public

Condo/Co-op/Association

  • Association Amenities: Elevator(s)
  • Association Fee: 1449
  • Association Fee Frequency: Monthly
  • Community Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Bike Path, Highway Access, T-Station
  • Senior Community YN: No

Fee Information

  • Association Fee Includes: Water, Sewer, Insurance, Snow Removal

Lot Info

  • Parcel Number: W:03 P:04688 S:032,3367439
  • Zoning: CD
  • Farm Land Area Units: Square Feet
  • Lot Size Acres: 0.08
  • Lot Size Sq Ft: 3672
  • Lot Size Units: Acres
  • Property Attached YN: Yes
  • OUTDOOR SPACE AVAILABLE: Yes - Private

Rental Info

  • Pets Allowed: Yes

Tax Info

  • Tax Year: 2025
  • Tax Annual Amount: 68137

Multi Family

  • Number Of Units Total: 5
  • Basement Included Sq Ft: No
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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
03/17/2026 03/17/26 Sold $5,100,000 -14.3% $1,347 / Sq Ft
02/03/2026 02/03/26 Pending -- -- --
01/26/2026 01/26/26 For Sale $5,950,000 +16.7% $1,571 / Sq Ft
11/26/2025 11/26/25 Off Market $5,100,000 -- --
09/08/2025 09/08/25 For Sale $5,799,000 -- $1,531 / Sq Ft
Source: MLS Property Information Network (MLS PIN)

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Map

Source: MLS Property Information Network (MLS PIN)

MLS Number: 73427296

MLS Property Information Network (MLS PIN)
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