Google street view image for 23 Castlegate Rd, Dorchester, MA 02121

OFF MARKET

$1,000,686

•

3 ba

•

4,125

sq ft

23 Castlegate Rd, Dorchester, MA 02121

About this home

23 Castlegate Rd is a 4,125 square foot multi-family home on a 2,614 square foot lot with 9 bedrooms and 3 bathrooms. Based on Redfin's Dorchester data, we estimate the home's value is $1,000,686.

Multi-familyProperty Type

1902Year Built

2,614 sq ftLot Size

$243Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,000,686

$9,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.7% lower than the average sale price ($1.11M) of 6 comparable homes.

SOLD AUG 14, 2026
$1,138,000
A
9 beds3 baths3,342 sq ft
76 Bellevue St, Dorchester, MA 02125
SOLD JUL 22, 2026
$1,050,000
B
9 beds3 baths4,104 sq ft
94 Normandy St, Dorchester, MA 02121
SOLD FEB 11, 2026
$1,005,000
C
8 beds3 baths3,807 sq ft
70 Hamilton St, Dorchester, MA 02125
SOLD AUG 3, 2026
$1,000,000
D
8 beds3 baths4,191 sq ft
36 Mclellan St, Dorchester, MA 02121
SOLD JUL 13, 2026
$1,275,000
E
9 beds3 baths4,833 sq ft
26 Merrill St, Dorchester, MA 02121
SOLD AUG 17, 2026
$1,180,000
F
12 beds3 baths4,104 sq ft
38 Bellevue St, Dorchester, MA 02125

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Earn from this home

Sell

$950,092

Est. take-home

List your home with Redfin and save $5,003

Market trends in Dudley-Brunswick King, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.0%

+0.6% MoM

Median sale price

$558K

$17K MoM

Avg. days on market

24d

4 days MoM

Recently sold homes

1 MoM

New listings for sale

NEW 10 HRS AGO
$1,099,000
6 beds3 baths4,310 sq ft
106 Harrishof St, Dorchester, MA 02121
OPEN FRI, 11AM TO 12PM
$1,169,000
14 beds6 baths7,859 sq ft
89 Ruthven St, Dorchester, MA 02121
OPEN THU, 6PM TO 8PM
$999,900
6 beds3 baths4,025 sq ft
15 Mclellan St, Dorchester, MA 02121
$639,000
3 beds2 baths993 sq ft
5 Glenburne St #3, Boston, MA 02121
$609,000
3 beds2 baths993 sq ft
5 Glenburne St #2, Boston, MA 02121
$599,900
3 beds2 baths993 sq ft
5 Glenburne St Unit 1, Boston, MA 02121
$1,019,999
7 beds2 baths3,590 sq ft
14-16 Nazing St, Dorchester, MA 02121
$1,499,000
3 beds3 baths3,800 sq ft
27 Howland St #2, Boston, MA 02121
OPEN SUN, 1PM TO 3PM
$569,000
4 beds2.5 baths2,638 sq ft
24-28 Glenway, Dorchester, MA 02121
See all

Provided by Redfin

Sale history for 23 Castlegate Rd

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

Year

Property tax

Land + Additions

Assessment*

2023

$7,799 (+8.6%)

$248,100 + $478,100

$726,200

2022

$7,184 (+9.1%)

$225,600 + $434,700

$660,300

2021

$6,583 (+6.2%)

$210,800 + $406,200

$617,000

2020

$6,197 (+15.2%)

$179,500 + $407,300

$586,800

2019

$5,378 (+0.6%)

$126,800 + $383,400

$510,200

2018

$5,347 (+5.9%)

$126,800 + $383,400

$510,200

2017

$5,047 (+10.7%)

$126,800 + $349,800

$476,600

2016

$4,560 (+21.5%)

$126,800 + $287,700

$414,500

2015

$3,753 (+4.9%)

$86,200 + $223,700

$309,900

2014

$3,578 (+1.5%)

$86,200 + $198,200

$284,400

2013

$3,525 (+5.3%)

$86,200 + $182,100

$268,300

2012

$3,346 (+2.0%)

$72,100 + $184,500

$256,600

2011

$3,282

$72,100 + $184,500

$256,600

2009

$3,282 (−2.4%)

$72,100 + $184,500

$256,600

2006

$3,363

$91,100 + $225,300

$316,400

Tax history for 23 Castlegate Rd

Year

Property tax

Land + Additions

Assessment*

2023

$7,799 (+8.6%)

$248,100 + $478,100

$726,200

2022

$7,184 (+9.1%)

$225,600 + $434,700

$660,300

2021

$6,583 (+6.2%)

$210,800 + $406,200

$617,000

2020

$6,197 (+15.2%)

$179,500 + $407,300

$586,800

2019

$5,378 (+0.6%)

$126,800 + $383,400

$510,200

2018

$5,347 (+5.9%)

$126,800 + $383,400

$510,200

2017

$5,047 (+10.7%)

$126,800 + $349,800

$476,600

2016

$4,560 (+21.5%)

$126,800 + $287,700

$414,500

2015

$3,753 (+4.9%)

$86,200 + $223,700

$309,900

2014

$3,578 (+1.5%)

$86,200 + $198,200

$284,400

2013

$3,525 (+5.3%)

$86,200 + $182,100

$268,300

2012

$3,346 (+2.0%)

$72,100 + $184,500

$256,600

2011

$3,282

$72,100 + $184,500

$256,600

2009

$3,282 (−2.4%)

$72,100 + $184,500

$256,600

2006

$3,363

$91,100 + $225,300

$316,400

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

Zoning and permits

Zoning
Permits

ROXBURY NEIGHBORHOOD-MFR

Roxbury Neighborhood-Multifamily Residential Subdistricts

Multifamily Residential Subdistricts, as indicated by the designation MFR on said Maps. The Multifamily Residential Subdistricts are established to encourage medium-density multifamily areas with a variety of allowed housing types including one-, two-, and three-family Dwellings, Row Houses, Town Houses, and Multifamily Dwellings.

Permitted uses

Include but are not limited to:

Religious facility
Day care facility
Housing-Group
Housing-Single unit
Housing-Multiple units
Housing-Senior
Fire house
Library
Police station
Park & open space

May 5, 2026 • Final

Short form bldg

Perform interior and exterior work on a residential building.

Remodel

Oct 19, 2023 • Final

Short form bldg

Perform exterior renovations on a residential building.

Remodel

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

Heating & Cooling
Heating Type: Forced Hot Water

Room Information
# of Rooms: 18

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Brick
Roof Shape Type: Flat

Property Information
Living Sq. Ft: 4,125
Gross Sq. Ft: 5,941
# of Units: 3
# of Stories: 3

Lot Information
# of Buildings: 1
Land Sq. Ft: 2,614
Municipality Name: BOSTON
Acres: 0.06
Zoning Code: R3
State Use Description: 3-FAMILY RESIDENCE

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 9
Baths: 3.0
Sq. Ft.: 4,125
Stories: 3.0
Lot Size: 2,614 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1902
Year Renovated: —
County: Suffolk County
APN: 1303757

Home facts updated by county records on Jul 20, 2023

Around this home

Schools

King Elementary School

Public PreK-6 • Assigned • 0.4mi

3/10

Albert D Holland School of Technology

Public 7-12 • Assigned • 0.1mi

2/10

Haynes Early Education Center

Public PreK-1 • Assigned • 0.6mi

Boston Latin Academy

Public 7-12 • Assigned • 0.6mi

7/10

Egleston Community High School

Public 9-12 • Assigned • 1.0mi

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk 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 96° expected this year, 15 days in 30 years

6/10 Wind Factor

64% 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

Dorchester, MA • 02121

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 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$951,000 – $1.15M

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Nearby similar homes

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OPEN SUN, 12:15PM TO 3:15PM

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New listings for sale in 02121

NEW 10 HRS AGO

$1,099,000

6 beds3 baths4,310 sq ft

106 Harrishof St, Dorchester, MA 02121

OPEN FRI, 11AM TO 12PM

$1,169,000

14 beds6 baths7,859 sq ft

89 Ruthven St, Dorchester, MA 02121

OPEN THU, 6PM TO 8PM

$999,900

6 beds3 baths4,025 sq ft

15 Mclellan St, Dorchester, MA 02121

$639,000

3 beds2 baths993 sq ft

5 Glenburne St #3, Boston, MA 02121

$609,000

3 beds2 baths993 sq ft

5 Glenburne St #2, Boston, MA 02121

$599,900

3 beds2 baths993 sq ft

5 Glenburne St Unit 1, Boston, MA 02121

$1,019,999

7 beds2 baths3,590 sq ft

14-16 Nazing St, Dorchester, MA 02121

$1,499,000

3 beds3 baths3,800 sq ft

27 Howland St #2, Boston, MA 02121

OPEN SUN, 1PM TO 3PM

$569,000

4 beds2.5 baths2,638 sq ft

24-28 Glenway, Dorchester, MA 02121

Home values near 23 Castlegate Rd

Data from public records.

Address	Redfin Estimate
9 Castlegate Rd, Dorchester, MA 9 Beds \| 3 Baths \| 4125 Sq. Ft.	$960,950
19 Castlegate Rd, Dorchester, MA 9 Beds \| 3 Baths \| 4125 Sq. Ft.	$1,040,721

Address	Redfin Estimate
15 Castlegate Rd, Dorchester, MA 12 Beds \| 3 Baths \| 3996 Sq. Ft.	$1,149,987
25 Castlegate Rd, Dorchester, MA 9 Beds \| 3 Baths \| 4125 Sq. Ft.	$985,293

Address	Redfin Estimate
17 Castlegate Rd, Dorchester, MA 9 Beds \| 3 Baths \| 4125 Sq. Ft.	$980,004
11 Castlegate Rd, Dorchester, MA 8 Beds \| 4 Baths \| 4125 Sq. Ft.	$1,126,675

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in Dudley-Brunswick King, MA

Sale history for 23 Castlegate Rd

Tax history for 23 Castlegate Rd

Zoning and permits

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 02121

Home values near 23 Castlegate Rd

More real estate resources