Google street view image for 421 Beacon St, Boston, MA 02115

Off market

$5,074,693

•

3.5 ba

•

3,990

sq ft

421 Beacon St, Boston, MA 02115

About this home

421 Beacon St is a 3,990 square foot townhouse on a 1,742 square foot lot with 4 bedrooms and 3.5 bathrooms. Based on Redfin's Boston data, we estimate the home's value is $5,074,693.

TownhomeProperty Type

1869Year Built

1,742 sq ftLot Size

$1,272Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$5,074,693

$40K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.8% lower than the average sale price ($5.33M) of 6 comparable homes.

SOLD SEP 18, 2026
$6,600,000
A
3 beds4 baths3,641 sq ft
102 Saint Botolph St, Boston, MA 02115
SOLD AUG 24, 2026
$4,075,000
B
4 beds2.5 baths3,490 sq ft
108 Pembroke St, Roxbury, MA 02118
SOLD AUG 31, 2026
$4,000,000
C
4 beds3.5 baths3,288 sq ft
70 Montgomery St, Boston, MA 02116
SOLD AUG 26, 2026
$3,450,000
D
3 beds3.5 baths2,538 sq ft
6 Claremont Park #1, Roxbury, MA 02118
SOLD JUL 17, 2026
$9,600,000
E
4 beds6 baths4,886 sq ft
126 Marlborough St, Boston, MA 02116
SOLD AUG 17, 2026
$4,250,000
F
4 beds4.5 baths3,500 sq ft
109 Appleton St, Boston, MA 02116

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Earn from this home

Sell

$4,822,191

Est. take-home

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Rent

$6,304/mo

Redfin rental estimate

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Market trends in Back Bay West, MA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-List Price

94.7%

3.3% MoM

Median sale price

$1.0M

$159K MoM

Avg. days on market

64d

40 days MoM

Recently sold homes

6 MoM

New listings for sale

EARLY ACCESS
$599,000
1 bed1 bath689 sq ft
362 Commonwealth Ave Unit 4D, Boston, MA 02115
$850,000
2 beds2 baths775 sq ft
28 Edgerly Rd #2, Boston, MA 02115
$3,900,000
4 beds3.5 baths4,010 sq ft
414 Beacon St Unit Parlor, Boston, MA 02115
$579,999
Studio1 bath407 sq ft
43 Westland Ave #510, Boston, MA 02115
3D WALKTHROUGH
$4,999,999
7 beds4.5 baths4,553 sq ft
18 Hereford St, Boston, MA 02115
$1,550,000
4 beds2 baths1,726 sq ft
179 Massachusetts Ave #3, Boston, MA 02115
$1,550,000
5 beds2 baths1,695 sq ft
179 Massachusetts Ave #2, Boston, MA 02115
$590,000
1 bed1 bath470 sq ft
96 Gainsborough St Unit 301W, Boston, MA 02115
$739,000
1 bed1 bath632 sq ft
120 Norway St #20, Boston, MA 02115
$3,650,000
2 beds2.5 baths1,407 sq ft
1 Dalton St #4703, Boston, MA 02115
See all

Provided by Redfin

Sale history for 421 Beacon St

As the MLS and public records start to fill up, we'll list the details here.

Year

Property tax

Land + Additions

Assessment*

2023

$47,704 (+6.0%)

$1,634,700 + $2,807,000

$4,441,700

2022

$44,989 (+4.0%)

$1,556,800 + $2,578,200

$4,135,000

2021

$43,255 (+2.0%)

$1,526,300 + $2,527,600

$4,053,900

2020

$42,404 (+5.2%)

$1,247,800 + $2,767,700

$4,015,500

2019

$40,322 (+7.6%)

$1,020,800 + $2,804,800

$3,825,600

2018

$37,484 (+7.3%)

$1,020,800 + $2,555,900

$3,576,700

2017

$34,926 (+0.1%)

$1,020,800 + $2,277,200

$3,298,000

2016

$34,882 (+0.8%)

$1,020,800 + $2,150,300

$3,171,100

2015

$34,603 (+1.1%)

$1,059,100 + $1,798,300

$2,857,400

2014

$34,235 (+8.8%)

$1,059,100 + $1,662,300

$2,721,400

2013

$31,455 (+11.0%)

$1,006,145 + $1,387,665

$2,393,810

2012

$28,344 (+8.1%)

$407,114 + $1,766,542

$2,173,656

2009

$26,218 (+24.2%)

$407,114 + $1,642,744

$2,049,858

2006

$21,109

$425,000 + $1,560,800

$1,985,800

Tax history for 421 Beacon St

Year

Property tax

Land + Additions

Assessment*

2023

$47,704 (+6.0%)

$1,634,700 + $2,807,000

$4,441,700

2022

$44,989 (+4.0%)

$1,556,800 + $2,578,200

$4,135,000

2021

$43,255 (+2.0%)

$1,526,300 + $2,527,600

$4,053,900

2020

$42,404 (+5.2%)

$1,247,800 + $2,767,700

$4,015,500

2019

$40,322 (+7.6%)

$1,020,800 + $2,804,800

$3,825,600

2018

$37,484 (+7.3%)

$1,020,800 + $2,555,900

$3,576,700

2017

$34,926 (+0.1%)

$1,020,800 + $2,277,200

$3,298,000

2016

$34,882 (+0.8%)

$1,020,800 + $2,150,300

$3,171,100

2015

$34,603 (+1.1%)

$1,059,100 + $1,798,300

$2,857,400

2014

$34,235 (+8.8%)

$1,059,100 + $1,662,300

$2,721,400

2013

$31,455 (+11.0%)

$1,006,145 + $1,387,665

$2,393,810

2012

$28,344 (+8.1%)

$407,114 + $1,766,542

$2,173,656

2009

$26,218 (+24.2%)

$407,114 + $1,642,744

$2,049,858

2006

$21,109

$425,000 + $1,560,800

$1,985,800

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Permits

Feb 28, 2026 • Final

Short form bldg

Work on a roof.

Roofing

Feb 5, 2026 • Final

Plumbing

Work on plumbing.

Plumbing

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Interior

Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 10

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Row House
Exterior Wall: Brick
Roof Shape Type: Mansard

Property Information
Living Sq. Ft: 3,990
Gross Sq. Ft: 4,260
# of Stories: 4

Lot Information
# of Buildings: 1
Land Sq. Ft: 1,742
Municipality Name: BOSTON
Acres: 0.04
Zoning Code: R1
State Use Description: 1-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 4
Baths: 3.5
Sq. Ft.: 3,990
Stories: 4.0
Lot Size: 1,742 square feet
Style: Townhouse
Year Built: 1869
Year Renovated: 2016
County: Suffolk County
APN: 3349854

Home facts updated by county records on Jul 20, 2023

Around this home

Schools

Mel H King Elementary

Public 2-12 • Assigned • 0.8mi

4/10

Snowden Int'L High School

Public 9-12 • Assigned • 0.4mi

2/10

Hurley K-8 School

Public PreK-8 • Assigned • 1.0mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

9/10 Flood Factor

Estimated 80%+ chance of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 97° expected this year, 15 days in 30 years

6/10 Wind Factor

62% chance of strong winds in next 30 years

3/10 Air Factor

3 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Boston, MA • 02115

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.2 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9.2 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$4.82M – $5.84M

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New listings for sale in 02115

EARLY ACCESSCOLDWELL BANKER REALTY COMING SOON

$599,000

1 bed1 bath689 sq ft

362 Commonwealth Ave Unit 4D, Boston, MA 02115

$850,000

2 beds2 baths775 sq ft

28 Edgerly Rd #2, Boston, MA 02115

$3,900,000

4 beds3.5 baths4,010 sq ft

414 Beacon St Unit Parlor, Boston, MA 02115

$579,999

Studio1 bath407 sq ft

43 Westland Ave #510, Boston, MA 02115

3D WALKTHROUGH

$4,999,999

7 beds4.5 baths4,553 sq ft

18 Hereford St, Boston, MA 02115

$1,550,000

4 beds2 baths1,726 sq ft

179 Massachusetts Ave #3, Boston, MA 02115

$1,550,000

5 beds2 baths1,695 sq ft

179 Massachusetts Ave #2, Boston, MA 02115

$590,000

1 bed1 bath470 sq ft

96 Gainsborough St Unit 301W, Boston, MA 02115

$739,000

1 bed1 bath632 sq ft

120 Norway St #20, Boston, MA 02115

Home values near 421 Beacon St

Data from public records.

Address	Redfin Estimate
425 Beacon St Apt 1, Boston, MA 3 Beds \| 2 Baths \| 1248 Sq. Ft.	$1,717,632
425 Beacon St Apt 4, Boston, MA 1 Beds \| 1 Baths \| 673 Sq. Ft.	$764,924

Address	Redfin Estimate
425 Beacon St Apt 2, Boston, MA - Beds \| 1 Baths \| 263 Sq. Ft.	$416,396
425 Beacon St Apt 5, Boston, MA 2 Beds \| 1 Baths \| 716 Sq. Ft.	$1,000,366

Address	Redfin Estimate
425 Beacon St Apt 3, Boston, MA - Beds \| 1 Baths \| 311 Sq. Ft.	$494,962
415 Beacon St Apt 1, Boston, MA 1 Beds \| 1.5 Baths \| 1039 Sq. Ft.	$997,761

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GreatSchools Ratings provided by GreatSchools.org.

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