For sale

Price cut: $40K (6/10)

$599,000

21 Beacon St APT 4G, Boston, MA 02108

1beds

535sqft

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Condominium

Built in 1899

-- sqft lot

$573,700 Zestimate^®

$1,120/sqft

$682/mo HOA

What's special

Warm and inviting atmosphereTall windows

Sitting above the historic streets of Beacon Hill, Unit 4G at 21 Beacon Street offers city living at its finest. Sunlight fills the space through tall windows, creating a warm and inviting atmosphere. The building’s concierge service, elevator, and laundry on every floor add convenience, while the spectacular roof deck with panoramic views of the skyline and the Charles, provides a daily reminder of why Beacon Hill is one of Boston’s most beloved neighborhoods. Moments from the Common, Financial District, and the MBTA Red and Green Lines, this home is ideal for anyone seeking charm, convenience, and classic Boston character. Heat, Hot Water, Electric, Water, Sewer, Master Insurance, Security, Laundry Facilities, Elevator, Exterior Maintenance, Landscaping, Snow Removal, Management Fee covered by your condo fee.

37 days

527

24

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Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 1
Bathrooms: 1
Full bathrooms: 1

Heating

Baseboard

Cooling

Window Unit(s)

Appliances

Included: Range, Dishwasher, Refrigerator
Laundry: In Building

Features

Flooring: Tile, Parquet
Has basement: Yes
Has fireplace: No
Common walls with other units/homes: 2+ Common Walls

Interior area

Total structure area: 535
Total interior livable area: 535 sqft
Finished area above ground: 535

Property

Lot

Size: 535 Square Feet

Details

Parcel number: W:03 P:02807 S:080,3364876
Zoning: CD

Construction

Type & style

Home type: Condo
Property subtype: Condominium
Attached to another structure: Yes

Materials

Stone

Condition

Year built: 1899

Utilities & green energy

Sewer: Public Sewer
Water: Public

Community & HOA

Community

Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
Security: Concierge

HOA

Amenities included: Hot Water, Laundry, Elevator(s)
Services included: Heat, Electricity, Water, Sewer, Insurance, Security, Maintenance Structure, Maintenance Grounds, Snow Removal, Trash, Reserve Funds
HOA fee: $682 monthly

Location

Region: Boston

Financial & listing details

Price per square foot: $1,120/sqft
Tax assessed value: $529,000
Annual tax amount: $6,126
Date on market: 5/27/2026

Estimated market value

$573,700

$545,000 - $602,000

$3,115/mo

Price history

Date	Event	Price
6/10/2026	Price change	$599,000-6.3%$1,120/sqft
Source: MLS PIN #73525411 Report a problem
5/27/2026	Listed for sale	$639,000-56.8%$1,194/sqft
Source: MLS PIN #73525411 Report a problem
4/15/2026	Listing removed	$2,750$5/sqft
Source: Zillow Rentals Report a problem
4/10/2026	Listed for rent	$2,750+1.9%$5/sqft
Source: Zillow Rentals Report a problem
2/27/2026	Sold	$1,480,000+515.1%$2,766/sqft
Source: Public Record Report a problem
6/10/2025	Listing removed	$2,700$5/sqft
Source: Zillow Rentals Report a problem
5/27/2025	Listed for rent	$2,700+1.9%$5/sqft
Source: Zillow Rentals Report a problem
3/23/2024	Listing removed	--
Source: Zillow Rentals Report a problem
3/6/2024	Listed for rent	$2,650+6%$5/sqft
Source: Zillow Rentals Report a problem
3/4/2022	Listing removed	--
Source: Zillow Rental Network Premium Report a problem
2/22/2022	Listed for rent	$2,500+19%$5/sqft
Source: Zillow Rental Network Premium #72945033 Report a problem
4/3/2021	Listing removed	--
Source: Zillow Rental Network Premium Report a problem
3/18/2021	Listed for rent	$2,100-19.2%$4/sqft
Source: Zillow Rental Network Premium #72798993 Report a problem
8/20/2019	Listing removed	$2,600$5/sqft
Source: Red Brick Real Estate, LLC #72540736 Report a problem
7/26/2019	Listed for rent	$2,600+23.8%$5/sqft
Source: Red Brick Real Estate, LLC #72540736 Report a problem
12/6/2017	Listing removed	$2,100-2.3%$4/sqft
Source: Goodrich Residential Report a problem
9/20/2017	Listed for rent	$2,150-14%$4/sqft
Source: Zillow Rental Manager Report a problem
9/13/2016	Listing removed	$2,500+13.6%$5/sqft
Source: Owner Report a problem
9/1/2015	Listing removed	$2,200$4/sqft
Source: Keller Williams Realty Boston-Metro \| Back Bay #71886606 Report a problem
8/18/2015	Price change	$2,200-8.3%$4/sqft
Source: Keller Williams Realty Boston-Metro \| Back Bay #71886606 Report a problem
8/9/2015	Listed for rent	$2,400$4/sqft
Source: Keller Williams Realty Boston-Metro \| Back Bay #71886606 Report a problem
10/30/2008	Sold	$240,600$450/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$6,126 +9.3%	$529,000 +2.9%
2024	$5,604 +1.5%	$514,100
2023	$5,521 +0.6%	$514,100 +2%
2022	$5,486 +4%	$504,200 +2%
2021	$5,274 -13.5%	$494,300 -14.3%
2020	$6,094 +25.1%	$577,100 +24.8%
2019	$4,873 +6.7%	$462,300 +6.1%
2018	$4,568 +578.6%	$435,900 +5%
2017	$673 -85.5%	$415,200 -1.9%
2016	$4,654 +7.9%	$423,100 +18.8%
2015	$4,314 +3%	$356,208 +7%
2014	$4,188 +1.5%	$332,905 +6%
2013	$4,127 +7%	$314,061 +6.2%
2012	$3,856 +2%	$295,700
2011	$3,782 +7.7%	$295,700
2010	$3,513 +13.2%	$295,700 +1.3%
2009	$3,104 -3.1%	$292,000
2008	$3,203 -1.1%	$292,000 -0.8%
2007	$3,237	$294,500

Find assessor info on the county website

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HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.

Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.

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