Google street view image for 321 Arsenal St, Watertown, MA 02472

Off market

—

•

2.5 ba

•

31,633

sq ft

321 Arsenal St, Watertown, MA 02472

About this home

321 Arsenal St is a 31,633 square foot property with 2.5 bathrooms.

1862Year Built

Source:Public Records

Redfin Estimate

Unfortunately, we don't have enough data to generate an accurate Estimate at this time.

Market trends in 02472, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.4%

+0.7% MoM

Median sale price

$880K

$5K MoM

Avg. days on market

22d

0 days MoM

Recently sold homes

14 MoM

New listings for sale

OPEN SUN, 11AM TO 12:30PM
$1,185,000
3 beds3.5 baths1,592 sq ft
41 Paul St #1, Watertown, MA 02472
OPEN SUN, 12PM TO 2PM
$1,050,000
3 beds2.5 baths1,850 sq ft
134 Edenfield Ave #2, Watertown, MA 02472
OPEN SUN, 12PM TO 1:30PM
$950,000
3 beds2.5 baths1,853 sq ft
748 Mount Auburn St #748, Watertown, MA 02472
3D WALKTHROUGH
$359,000
1 bed1 bath421 sq ft
20 Riverside St Unit 2-3, Watertown, MA 02472
$539,000
2 beds1 bath1,282 sq ft
298 Mt. Auburn St #7, Watertown, MA 02472
$369,900
1 bed1 bath670 sq ft
164 Galen St #62, Watertown, MA 02472
OPEN SUN, 12PM TO 1:30PM
$1,189,999
4 beds1.5 baths2,455 sq ft
230 Orchard St, Watertown, MA 02472
OPEN SUN, 11AM TO 12PM
$674,000
2 beds1.5 baths1,200 sq ft
88 Belmont St #88, Watertown, MA 02472
OPEN SUN, 12PM TO 2PM
$1,500,000
5 beds3 baths3,050 sq ft
745/ 747 Mount Auburn St, Watertown, MA 02472
3D WALKTHROUGH
$1,150,000
4 beds2 baths2,150 sq ft
227 Common St, Watertown, MA 02472
See all

Provided by Redfin

Sale history for 321 Arsenal St

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

Tax history for 321 Arsenal St

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

Property details

Interior

Cooling Information
Cooling Type: Has Cooling

Heating Information
Heating Fuel Type: Gas
Heat Type: Forced Air

Bathroom Information
# of Baths (Total): 3
# of Half Baths: 1
# of Full Baths: 2

Exterior

Exterior Information
Roof Type: Slate
Property Condition: Average
Framework Structure Material: Steel
Exterior Material: Brick

Property Information
Total number of Stories: 3
Total Sq. Ft. of All Structures: 31,633
Total Sq. Ft. of All Structures Description: Living Area
Total Assessor Sq. Ft. of Buildings: 34,267
# of Structures on Property: 1

Financial

Assessor Information
Year of Last Land Appraisal: 2015

Public facts

Beds: —
Baths: 2.5
Sq. Ft.: 31,633
Stories: 3.0
Lot Size: —
Style: Unknown
Year Built: 1862
Year Renovated: —
County: Middlesex County
APN: M1301B0001L0001A

Home facts updated by county records on Apr 11, 2023

Around this home

Schools

Hosmer Elementary School

Public PreK-5 • Assigned • 0.4mi

7/10

Watertown Middle School

Public 6-8 • Assigned • 1.5mi

7/10

Watertown High School

Public 9-12 • Assigned • 1.6mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Watertown's urban-suburban feeling paired with its proximity to Cambridge & Boston have caused it to rapidly transform into a destination for home buyers. Historically a manufacturing city, it has changed into a restaurant, shopping, and biotech hub...
4 weeks ago • Watertown
Benjamin Ginsburg
Redfin Premier agent
155 deals
Was this helpful?
Watertown’s market has exploded in recent years, with high home prices. Located close to Boston, it offers the perfect balance of a seamless urban commute and the tranquility of suburban living. Enhanced by flexible MBTA bus options and its location...
4 weeks ago • Watertown
Kyle MacNichol
Redfin Premier agent
59 deals
Was this helpful?

Climate risks

Flood Factor

We're working on getting current and accurate flood risk information for this home.

Fire Factor

We're working on getting current and accurate fire risk information for this home.

6/10 Heat Factor

7 hot days expected this year, 15 days in 30 years

Wind Factor

We're working on getting current and accurate wind risk information for this home.

3/10 Air Factor

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

Provided by First Street

Historical weather

Watertown, MA • 02472

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

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Dec

Sun exposure

Try the sun simulator tool to see how light moves across the property at different times of day and year.

Provided by Shadowmap

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Get a free, detailed breakdown of how we calculated your estimate.

Nearby similar homes

FOR SALE BY OWNER

$600,000

2 beds1 bath1,250 sq ft

33 Pinehurst St, Boston, MA 02131

New listings for sale in 02472

OPEN SUN, 11AM TO 12:30PM

$1,185,000

3 beds3.5 baths1,592 sq ft

41 Paul St #1, Watertown, MA 02472

OPEN SUN, 12PM TO 2PM

$1,050,000

3 beds2.5 baths1,850 sq ft

134 Edenfield Ave #2, Watertown, MA 02472

OPEN SUN, 12PM TO 1:30PM

$950,000

3 beds2.5 baths1,853 sq ft

748 Mount Auburn St #748, Watertown, MA 02472

3D WALKTHROUGH

$359,000

1 bed1 bath421 sq ft

20 Riverside St Unit 2-3, Watertown, MA 02472

$539,000

2 beds1 bath1,282 sq ft

298 Mt. Auburn St #7, Watertown, MA 02472

$369,900

1 bed1 bath670 sq ft

164 Galen St #62, Watertown, MA 02472

OPEN SUN, 12PM TO 1:30PM

$1,189,999

4 beds1.5 baths2,455 sq ft

230 Orchard St, Watertown, MA 02472

OPEN SUN, 11AM TO 12PM3D WALKTHROUGH

$674,000

2 beds1.5 baths1,200 sq ft

88 Belmont St #88, Watertown, MA 02472

OPEN SUN, 12PM TO 2PM

$1,500,000

5 beds3 baths3,050 sq ft

745/ 747 Mount Auburn St, Watertown, MA 02472

Home values near 321 Arsenal St

Data from public records.

Address	Redfin Estimate
475 Arsenal Street #N, Watertown, MA 3 Beds \| 2 Baths \| 1351 Sq. Ft.	$828,942
475 Arsenal Street #K, Watertown, MA 2 Beds \| 2 Baths \| 1026 Sq. Ft.	$686,533

Address	Redfin Estimate
475 Arsenal Street #M, Watertown, MA 2 Beds \| 2 Baths \| 1631 Sq. Ft.	$719,180
475 Arsenal Street #J, Watertown, MA 2 Beds \| 1.5 Baths \| 1110 Sq. Ft.	$726,194

Address	Redfin Estimate
475 Arsenal Street #L, Watertown, MA 2 Beds \| 2 Baths \| 1026 Sq. Ft.	$752,148
475 Arsenal Street #I, Watertown, MA 2 Beds \| 1.5 Baths \| 1090 Sq. Ft.	$657,404

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