OFF MARKET

Off Market Aug 2022 for $435K

$484,988

Est. refi paymentEst. refi $3,359/mo

•

1,033

sq ft

3 Seal Harbor Rd #331, Winthrop, MA 02152

About this home

OH Sat & Sun 5/7 & 5/8 11:00-12:30PM. Have you ever wanted to wake up to beautiful ocean views while having coffee on your balcony? Seal Harbor Condominiums offers an upscale resort style living with 24/7 concierge, indoor & outdoor pools, fitness facility, sauna, function rooms, bike storage, tennis court and more! This enormous one bedroom has an inviting and relaxing floor plan throughout and features large closets, in-unit laundry, deeded parking and extra storage. Perfect time to move in right before summer and enjoy all Seal Harbor has to offer! Don't want to miss this one! Offers due Tuesday 05/10 @ 5pm. Please allow 24 hours to respond.

CondoProperty Type

1987Year Built

$469Est. Price/Sq.Ft.

1 car garageParking

Listed by The Young Group • Leopold & McMasters Realty

Bought with Shannon Jenkins • RE/MAX Realty Experts

Redfin checked: a minute ago

•Source:MLS PIN #72976005

Redfin Estimate

$484,988

$50K since sold in August 2022$4,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 14.6% lower than the average sale price ($568K) of 6 comparable homes.

SOLD AUG 20, 2026
$550,000
A
1 bed1 bath994 sq ft
1 Seal Harbor Rd #300, Winthrop, MA 02152
SOLD JUN 23, 2026
$575,000
B
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #401, Winthrop, MA 02152
SOLD MAY 19, 2026
$630,000
C
1 bed1 bath910 sq ft
3 Seal Harbor Rd #133, Winthrop, MA 02152
SOLD MAY 15, 2026
$549,000
D
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #701, Winthrop, MA 02152
SOLD APR 3, 2026
$515,000
E
1 bed1 bath840 sq ft
3 Seal Harbor Rd #634, Winthrop, MA 02152
SOLD AUG 26, 2026
$589,000
F
2 beds2 baths1,241 sq ft
1 Seal Harbor Rd #116, Winthrop, MA 02152

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

Earn from this home

Sell

$138,952

Est. take-home

List your home with Redfin and save $2,425

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 02152, MA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.8%

+0.1% MoM

Median sale price

$629K

$6K MoM

Avg. days on market

23d

3 days MoM

Recently sold homes

4 MoM

New listings for sale

NEW 11 HRS AGO
$965,000
2 beds2.5 baths1,978 sq ft
1001 Shirley St #1, Winthrop, MA 02152
NEW 11 HRS AGO
$815,000
2 beds2.5 baths1,665 sq ft
1001 Shirley St #4, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$309,900
1 bed1 bath720 sq ft
483 Shirley St Unit 6A, Winthrop, MA 02152
OPEN TODAY, 12:30PM TO 1:30PM
$549,900
2 beds1 bath782 sq ft
130 Shirley St #220, Winthrop, MA 02152
$900,000
3 beds1.5 baths1,334 sq ft
93 1/2 Winthrop Shore Dr, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$475,000
2 beds2 baths903 sq ft
34 Underhill St #4, Winthrop, MA 02152
OPEN TODAY, 11AM TO 1PM
$865,000
3 beds2.5 baths1,564 sq ft
807 Shirley St, Winthrop, MA 02152
OPEN TODAY, 11AM TO 2PM
$799,900
3 beds2 baths1,782 sq ft
35 Triton Ave, Winthrop, MA 02152
$1,095,000
2 beds3 baths2,649 sq ft
94 Winthrop Shore Dr, Winthrop, MA 02152
OPEN TODAY, 1PM TO 2:30PM
$699,999
2 beds2 baths1,417 sq ft
1 Seal Hbr #916, Winthrop, MA 02152
See all

Provided by Redfin

Sale history for 3 Seal Harbor Rd #331

Year

Property tax

Land + Additions

Assessment*

2023

$4,444 (+1.0%)

$415,300

2022

$4,401 (−2.1%)

$374,200

2021

$4,494 (+3.6%)

$354,400

2020

$4,337 (−1.1%)

$343,700

2019

$4,384 (−3.0%)

$332,600

2018

$4,518 (+3.0%)

$319,100

2017

$4,386 (+2.6%)

$304,400

2016

$4,276 (+18.7%)

$278,200

2014

$3,601 (−1.6%)

$231,100

2013

$3,659 (+2.9%)

$245,400

2012

$3,556 (−4.9%)

$245,400

2011

$3,738 (+5.1%)

$270,900

2010

$3,555 (+31.2%)

$279,900

2009

$2,710

$271,800

Tax history for 3 Seal Harbor Rd #331

Year

Property tax

Land + Additions

Assessment*

2023

$4,444 (+1.0%)

$415,300

2022

$4,401 (−2.1%)

$374,200

2021

$4,494 (+3.6%)

$354,400

2020

$4,337 (−1.1%)

$343,700

2019

$4,384 (−3.0%)

$332,600

2018

$4,518 (+3.0%)

$319,100

2017

$4,386 (+2.6%)

$304,400

2016

$4,276 (+18.7%)

$278,200

2014

$3,601 (−1.6%)

$231,100

2013

$3,659 (+2.9%)

$245,400

2012

$3,556 (−4.9%)

$245,400

2011

$3,738 (+5.1%)

$270,900

2010

$3,555 (+31.2%)

$279,900

2009

$2,710

$271,800

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

Public record

Beds

Baths

1.5

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

1989

Sq. Ft.

1,033

Year built

1987

Style

Condo/Co-op

County

APN

1425331

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 21, 2023.

Property details

Parking

Parking Information
Has Garage
# of Garage Spaces: 1
# of Covered Spaces: 1
AttachedGarageYN: Yes
Parking Features: Under, Deeded

Interior

Bathroom Information
# of Bathrooms (Full): 1
# of Bathrooms (Half): 1
Master Bathroom Features: Yes

Basement Information
Basement: N

Laundry Information
Laundry Features: In Unit, Electric Dryer Hookup, Washer Hookup

Interior Features
# of Rooms (Total): 4
Flooring: Tile, Carpet
Interior Features: Sauna/Steam/Hot Tub, Elevator

Exterior

Building Information
Building Name: Seal Harbor
Building Area (Total): 1,033
Construction Materials: Stone
StructureType: High-Rise
Stories (Total): 1
Year Built Source: Public Records
Year Built Details: Actual

Exterior Features
Roof: Rubber
Patio And Porch Features: Porch
Exterior Features: Porch, Balcony, Gazebo, Tennis Court(s)

Pool Information
Pool Features: Association, In Ground, Indoor, Heated, Lap

Property Information
PropertySubType: Condominium
Property AttachedYN: Yes
Entry Level: 3
Entry Location: Unit Placement(Upper)
Security Features: Concierge
Other Structures: Gazebo
Has Waterview
Ocean

Lot Information
WaterfrontYN: Yes

Financial

Tax Information
Tax Annual Amount: $4,401
Tax Year: 2022

Utilities

Utility Information
Utilities: for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup
Sewer: Public Sewer
Water Source: Public
Electric: 110 Volts

Heating & Cooling
Has Heating
Has Cooling
Heating: Forced Air, Heat Pump
Cooling: Central Air

Location

HOA Information
Association Fee: $621
Association Fee Frequency: Monthly
Association Fee Includes: Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash
Association Amenities: Pool, Laundry, Elevator(s), Tennis Court(s), Park, Fitness Center, Sauna/Steam, Clubroom, Trail(s)

Location Information
Directions: Use GPS. Second Building in the back.
UnparsedAddress: 3 Seal Harbor Rd # 331, Winthrop MA 02152

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Laundromat, House of Worship, Marina, Public School
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 1
Baths: 1.5
Sq. Ft.: 1,033
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1987
Year Renovated: 1989
County: —
APN: 1425331

Home facts updated by county records on Jul 20, 2023

Other

Listing Information
StandardStatus: Closed

Around this home

Schools

William P. Gorman/Fort Banks Elementary School

Public PreK-2 • Assigned • 0.7mi

Winthrop Middle School

Public 6-8 • Assigned • 0.8mi

8/10

Winthrop Senior High School

Public 9-12 • Assigned • 0.8mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Historical weather

Winthrop, MA • 02152

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

$461,000 – $558,000

Reach more buyers when you sell with Redfin. Save up to $4,850 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

OPEN TODAY, 10AM TO 12PM

$585,000

2 beds2 baths1,203 sq ft

1 Seal Harbor Rd #615, Winthrop, MA 02152

$625,000

3 beds2.5 baths1,510 sq ft

189 Shirley #2, Winthrop, MA 02152

3D WALKTHROUGH

$350,000

2 beds1 bath649 sq ft

175 Shirley St #5, Winthrop, MA 02152

OPEN TODAY, 12:30PM TO 1:30PM

$499,900

1 bed1 bath623 sq ft

130 Shirley St #330, Winthrop, MA 02152

NEW CONSTRUCTION

$625,000

2 beds2 baths1,029 sq ft

804 Saratoga #2, Boston, MA 02128

$1,230,000

3 beds3 baths1,913 sq ft

3 Seal Harbor Rd Ph 33, Winthrop, MA 02152

New listings for sale in 02152

NEW 11 HRS AGO3D WALKTHROUGH

$965,000

2 beds2.5 baths1,978 sq ft

1001 Shirley St #1, Winthrop, MA 02152

NEW 11 HRS AGO

$815,000

2 beds2.5 baths1,665 sq ft

1001 Shirley St #4, Winthrop, MA 02152

OPEN TODAY, 11AM TO 12:30PM

$309,900

1 bed1 bath720 sq ft

483 Shirley St Unit 6A, Winthrop, MA 02152

OPEN TODAY, 12:30PM TO 1:30PM

$549,900

2 beds1 bath782 sq ft

130 Shirley St #220, Winthrop, MA 02152

$900,000

3 beds1.5 baths1,334 sq ft

93 1/2 Winthrop Shore Dr, Winthrop, MA 02152

OPEN TODAY, 11AM TO 12:30PM3D WALKTHROUGH

$475,000

2 beds2 baths903 sq ft

34 Underhill St #4, Winthrop, MA 02152

OPEN TODAY, 11AM TO 1PM3D WALKTHROUGH

$865,000

3 beds2.5 baths1,564 sq ft

807 Shirley St, Winthrop, MA 02152

OPEN TODAY, 11AM TO 2PM3D WALKTHROUGH

$799,900

3 beds2 baths1,782 sq ft

35 Triton Ave, Winthrop, MA 02152

$1,095,000

2 beds3 baths2,649 sq ft

94 Winthrop Shore Dr, Winthrop, MA 02152

Home values near 3 Seal Harbor Rd #331

Data from public records.

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 132, Winthrop, MA 1 Beds \| 2 Baths \| 1341 Sq. Ft.	$569,286
3 Seal Harbor Rd Apartment 137, Winthrop, MA 2 Beds \| 2 Baths \| 1327 Sq. Ft.	$718,187

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 133, Winthrop, MA 1 Beds \| 1 Baths \| 910 Sq. Ft.	$603,023
3 Seal Harbor Rd Apartment 231, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$519,985

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 134, Winthrop, MA 1 Beds \| 1 Baths \| 897 Sq. Ft.	$469,133
3 Seal Harbor Rd Apartment 236, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$865,095

Property information provided by MLS PIN when last listed in 2022. This data may not match . Learn more.

More real estate resources

Neighborhoods
Cities
Zip Codes
Minor Civil Divisions
Popular Searches

Whinthrop Highlands 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 Winthrop	Agents near me	Quincy, MA homes for sale	Winthrop 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	Winthrop Property Records
Condos for sale near me	Lexington, MA homes for sale	MA New Listings

Boston homes for sale
Newton homes for sale
Winthrop Town homes for sale

02128 homes for sale
02151 homes for sale
02152 homes for sale