Off market sep 2008 for $189K

$810,082

Est. refi paymentEst. refi $2,933/mo

•

3,156

sq ft

21 Cottage St, Chelsea, MA 02150

About this home

PLEASE READ COMPLETELY! ALL offers are contingent upon receipt of a fully executed and mutually acceptable P/S Agreement including all seller's addendums signed w/out changes and EM deposit(bank check) received. ALL Buyers will required to be pre-approved by DESIGNATED LENDER. Offer amount,Loan amount,credit,income,assets & employment must be verified. Financing type(Conv,FHA)must be stated and confirmed before offers will be submitted.CONTACT LISTING OFFICE FOR INSTRUCTION ON SUBMITTING OFFERS

Multi-familyProperty Type

1900Year Built

4,702 sq ftLot Size

$257Est. Price/Sq.Ft.

2 spacesParking

Listed by David Oliveri • Prudential Lenmar Realty

Bought with Jay Bradley • RE/MAX Leading Edge

Redfin checked: a minute ago

•Source:MLS PIN #70786685

Redfin Estimate

$810,082

$621K since sold in September 2008$17K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5% higher than the average sale price ($772K) of 6 comparable homes.

SOLD AUG 5, 2026
$700,000
A
4 beds2 baths2,826 sq ft
105 Lexington St, East Boston, MA 02128
SOLD JUL 30, 2026
$895,000
B
5 beds3 baths2,840 sq ft
10 Orange St, Chelsea, MA 02150
SOLD JUL 2, 2026
$645,000
C
4 beds1.5 baths2,279 sq ft
143 Clark Ave, Chelsea, MA 02150
SOLD AUG 12, 2026
$590,000
D
4 beds2 baths1,232 sq ft
50 Division, Chelsea, MA 02150
SOLD APR 8, 2026
$835,000
E
5 beds2 baths2,580 sq ft
139 Grove St, Chelsea, MA 02150
SOLD AUG 13, 2026
$966,000
F
7 beds3 baths3,103 sq ft
21 John St, Chelsea, MA 02150

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$686,934

Est. take-home

List your home with Redfin and save $4,050

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 02150, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.2%

0.1% MoM

Median sale price

$504K

$25K MoM

Avg. days on market

36d

11 days MoM

Recently sold homes

5 MoM

New listings for sale

OPEN SAT, 12PM TO 1:30PM
$769,000
4 beds2 baths2,244 sq ft
52 Watts St, Chelsea, MA 02150
OPEN SAT, 11AM TO 1PM
$599,900
4 beds2 baths2,113 sq ft
3 Medford St, Chelsea, MA 02150
$1,050,000
8 beds3 baths3,103 sq ft
45 Addison, Chelsea, MA 02150
OPEN SAT, 12PM TO 1:30PM
$798,000
3 beds2.5 baths2,166 sq ft
65 Boatswains Way #65, Chelsea, MA 02150
$875,000
6 beds3 baths2,664 sq ft
188 Clark Ave, Chelsea, MA 02150
$330,000
1 bed1 bath680 sq ft
70 Warren Unit 1-4, Chelsea, MA 02150
See all

Provided by Redfin

Sale history for 21 Cottage St

Year

Property tax

Land + Additions

Assessment*

2020

$171,200 + $348,200

$519,400

2018

$7,324 (−1.7%)

$171,200 + $348,200

$519,400

2017

$7,448 (+41.5%)

$171,200 + $348,200

$519,400

2016

$5,265 (+7.9%)

$171,200 + $198,300

$369,500

2015

$4,880 (+16.2%)

$148,900 + $190,000

$338,900

2014

$4,198 (+5.3%)

$129,500 + $152,600

$282,100

2013

$3,986 (+11.3%)

$129,500 + $152,600

$282,100

2012

$3,582 (+3.5%)

$119,500 + $139,900

$259,400

2011

$3,460 (+4.9%)

$124,500 + $143,300

$267,800

2010

$3,298 (−11.8%)

$124,500 + $148,300

$272,800

2009

$3,741

$155,400 + $191,000

$346,400

Tax history for 21 Cottage St

Year

Property tax

Land + Additions

Assessment*

2020

$171,200 + $348,200

$519,400

2018

$7,324 (−1.7%)

$171,200 + $348,200

$519,400

2017

$7,448 (+41.5%)

$171,200 + $348,200

$519,400

2016

$5,265 (+7.9%)

$171,200 + $198,300

$369,500

2015

$4,880 (+16.2%)

$148,900 + $190,000

$338,900

2014

$4,198 (+5.3%)

$129,500 + $152,600

$282,100

2013

$3,986 (+11.3%)

$129,500 + $152,600

$282,100

2012

$3,582 (+3.5%)

$119,500 + $139,900

$259,400

2011

$3,460 (+4.9%)

$124,500 + $143,300

$267,800

2010

$3,298 (−11.8%)

$124,500 + $148,300

$272,800

2009

$3,741

$155,400 + $191,000

$346,400

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

Public record

Public record
Zoning

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

4,700 Sq. Ft.

Year renovated

—

Sq. Ft.

4,944

Year built

1900

Style

Multi-Family (2-4 Unit)

County

Suffolk County

APN

1287380

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jan 27, 2023.

Property details

Parking

Parking Information
Parking Spaces: 2

Interior

Bathroom Information
# of Bathrooms (Full): 2

Basement Information
Basement: Full

Interior Features
# of Rooms (Total): 12

Unit #1 Information
# of Levels: 1
# of Floors: 1
Lease: N

Unit #2 Information
# of Levels: 1
# of Floors: 1
Lease: N

Exterior

Building Information
Building Area (Total): 3,156
Stories (Total): 2
Year Built Source: Public Records
Year Built Details: Approximate

Property Information
PropertySubType: Multi Family

Lot Information
Lot Size (Acres): 0.11

Financial

Tax Information
Tax Annual Amount: $4,340
Tax Year: 2008

Utilities

Utility Information
Sewer: Public Sewer, City/Town Sewer
Water Source: Public, City/Town Water

Location

Location Information
Directions: Google Maps
UnparsedAddress: 21 Cottage St, Chelsea MA 02150

Community Information
Senior CommunityYN: No

Public facts

Beds: 6
Baths: 4.0
Sq. Ft.: 4,944
Stories: 2.0
Lot Size: 4,700 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1900
Year Renovated: —
County: Suffolk County
APN: 1287380

Home facts updated by county records on Jan 27, 2023

Other

Listing Information
StandardStatus: Closed

Around this home

Schools

Shurtleff Early Childhood

Public PreK-1 • Assigned • 0.2mi

Eugene Wright Science And Technology Academy

Public 5-8 • Assigned • 0.3mi

4/10

Chelsea High School

Public 9-12 • Assigned • 0.7mi

2/10

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 95° expected this year, 15 days in 30 years

6/10 Wind Factor

67% 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

Chelsea, MA • 02150

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

$770,000 – $932,000

Reach more buyers when you sell with Redfin. Save up to $8,101 in fees. 3 minutes to get started.

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

Nearby similar homes

NEW 12 HRS AGO

$2,600,000

8 beds9 baths3,830 sq ft

546 Saratoga St, East Boston, MA 02128

$1,700,000

8 beds3 baths2,624 sq ft

310 Chelsea St, East Boston, MA 02128

$999,999

7 beds4 baths3,496 sq ft

75 Harvard St, Chelsea, MA 02150

$1,650,000

9 beds5 baths4,357 sq ft

65 Woodlawn Ave, Chelsea, MA 02150

REDFIN OPEN SAT, 12PM TO 2PM

$835,000

4 beds3 baths1,966 sq ft

248 Princeton St, East Boston, MA 02128

$799,000

6 beds2 baths2,626 sq ft

10 Fremont Ave, Everett, MA 02149

New listings for sale in 02150

OPEN SAT, 12PM TO 1:30PM

$769,000

4 beds2 baths2,244 sq ft

52 Watts St, Chelsea, MA 02150

OPEN SAT, 11AM TO 1PM

$599,900

4 beds2 baths2,113 sq ft

3 Medford St, Chelsea, MA 02150

$1,050,000

8 beds3 baths3,103 sq ft

45 Addison, Chelsea, MA 02150

OPEN SAT, 12PM TO 1:30PM

$798,000

3 beds2.5 baths2,166 sq ft

65 Boatswains Way #65, Chelsea, MA 02150

$875,000

6 beds3 baths2,664 sq ft

188 Clark Ave, Chelsea, MA 02150

$330,000

1 bed1 bath680 sq ft

70 Warren Unit 1-4, Chelsea, MA 02150

Home values near 21 Cottage St

Data from public records.

Address	Redfin Estimate
18 Cottage Street, Chelsea, MA 7 Beds \| 2 Baths \| 2584 Sq. Ft.	$858,909
30 Cottage Street, Chelsea, MA 9 Beds \| 3 Baths \| 4263 Sq. Ft.	$1,051,639

Address	Redfin Estimate
22 Cottage Street, Chelsea, MA 4 Beds \| 2 Baths \| 2196 Sq. Ft.	$721,067
33 Cottage Street, Chelsea, MA 4 Beds \| 3 Baths \| 2388 Sq. Ft.	$785,484

Address	Redfin Estimate
24 Cottage Street, Chelsea, MA 3 Beds \| 1 Baths \| 1586 Sq. Ft.	$510,754
29 Cottage Street, Chelsea, MA 7 Beds \| 4 Baths \| 2718 Sq. Ft.	$941,963

Property information provided by MLS PIN when last listed in 2008. This data may not match . Learn more.

More real estate resources

Zip Codes
Cities
Neighborhoods
Minor Civil Divisions
Popular Searches

02128 homes for sale
02148 homes for sale
02149 homes for sale
02150 homes for sale
02151 homes for sale

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

Houses for rent in Chelsea	Agents near me	Quincy, MA homes for sale	Chelsea Housing Market
Houses for sale near me	Boston, MA homes for sale	Brookline, MA homes for sale
Land for sale near me	Newton, MA homes for sale	Arlington, MA homes for sale
Open Houses near me	Cambridge, MA homes for sale	Chelsea Property Records
Condos for sale near me	Lexington, MA homes for sale	MA New Listings

Cambridge homes for sale
Boston homes for sale
Newton homes for sale