OFF MARKET

Off market may 2023 for $510K

$485,984

Est. refi paymentEst. refi $2,318/mo

•

840

sq ft

3 Seal Hbr #434, Winthrop, MA 02152

About this home

CondoProperty Type

1987Year Built

$579Est. Price/Sq.Ft.

1 car garageParking

Listed by Mark Carangelo • Mark Carangelo

Bought with Sharon Tallent • Compass

Redfin checked: 3 minutes ago

•Source:MLS PIN #73091864

Redfin Estimate

$485,984

$24K since sold in May 2023$1,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5% lower than the average sale price ($512K) of 6 comparable homes.

SOLD APR 3, 2026
$515,000
A
1 bed1 bath840 sq ft
3 Seal Harbor Rd #634, Winthrop, MA 02152
SOLD MAY 19, 2026
$630,000
B
1 bed1 bath910 sq ft
3 Seal Harbor Rd #133, Winthrop, MA 02152
SOLD AUG 20, 2026
$550,000
C
1 bed1 bath994 sq ft
1 Seal Harbor Rd #300, Winthrop, MA 02152
SOLD SEP 11, 2026
$370,000
D
2 beds1 bath782 sq ft
1000 Governor's Dr #15, Winthrop, MA 02152
SOLD JUN 23, 2026
$575,000
E
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #401, Winthrop, MA 02152
SOLD SEP 21, 2026
$430,000
F
1 bed1 bath875 sq ft
350 Revere Beach Blvd Unit 7S, Revere, MA 02151

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

Earn from this home

Sell

$78,899

Est. take-home

List your home with Redfin and save $2,430

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 02152, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.0%

0.9% MoM

Median sale price

$715K

$86K MoM

Avg. days on market

27d

4 days MoM

Recently sold homes

3 MoM

New listings for sale

FOR SALE BY OWNER
$675,000
3 beds1 bath1,198 sq ft
25 North Ave, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$699,000
3 beds1.5 baths2,053 sq ft
65 Sunnyside Ave, Winthrop, MA 02152
OPEN TODAY, 12PM TO 1:30PM
$730,000
3 beds1.5 baths1,406 sq ft
9 Lincoln St, Winthrop, MA 02152
$835,000
6 beds3 baths2,424 sq ft
11-15 Sturgis St, Winthrop, MA 02152
$365,000
2 beds1 bath782 sq ft
200 Governors Dr #19, Winthrop, MA 02152
OPEN TODAY, 12PM TO 1:30PM
$865,000
2 beds2.5 baths1,806 sq ft
1001 Shirley St #2, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$649,900
3 beds2 baths1,515 sq ft
19 Beal St, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$869,000
3 beds2 baths1,925 sq ft
115 Read St #1, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$889,000
3 beds2 baths2,916 sq ft
115 Read St #2, Winthrop, MA 02152
OPEN TODAY, 11:30AM TO 1PM
$629,900
2 beds1 bath1,166 sq ft
96 Marshall St, Winthrop, MA 02152
See all

Provided by Redfin

Redfin agents who toured

This is a resort quality building. Very well maintained and run. The views here are expansive from every room! Fabulous outdoor space. A peaceful setting. I love the open floor plan, natural light, in unit laundry, off st parking.
2 years ago• May not reflect the current state of the home
Camille Murphy
Redfin agent

Sale history for 3 Seal Hbr #434

Date

Event

Price

MLSPIN #73359488

May 14, 2025

Rental Removed

$2,950

$4/sq ft

Apr 14, 2025

Listed for Rent

$2,950

$4/sq ft

MLS PIN #73091864

May 22, 2023

Sold

$510,000

$607/sq ft

Apr 11, 2023

Relisted

—

Mar 27, 2023

Listed

$499,000

$594/sq ft

MLS PIN #71723109

Oct 31, 2014

Sold

$311,000

$370/sq ft

Aug 30, 2014

Contingent

—

Aug 2, 2014

Listed

$304,900

$363/sq ft

+15

As soon as you walk into this updated 1 bedroom oceanfront condo the ocean view draws your attention.........You won't be disappointed in all the amenities this amazing oceanfront complex offers! Minutes to downtown Boston and Logan Airport! This updated unit overlooks the outdoor pool and unit placement is close to ocean edge. Updated kitchen features stainless steel appliances, granite counter tops. Some original walls removed for a better open floor plan & water views. Beautiful Brazilian Cherry floors throughout kitchen, living and dining area. Master bedroom offers new Berber carpeting, walk in closet and private access to full ceramic tile bath. Stackable laundry in unit. 1 deeded underground parking and plenty of guest parking. Roof top recreation area offers indoor lap pool, exercise room, game room and outside deck with awesome views. Beautifully maintained landscaped grounds with charming Gazebo. 24 hour Concierge on site.

MLS PIN #70932962

Oct 22, 2009

Sold

$259,000

$308/sq ft

Sep 1, 2009

Contingent

—

Jul 21, 2009

Price Changed

$285,000

$339/sq ft

Jul 6, 2009

Price Changed

$295,000

$351/sq ft

Jun 11, 2009

Listed

$300,000

$357/sq ft

MLS PIN #30302912

Jun 29, 1999

Sold

$155,000

$185/sq ft

May 20, 1999

Listing Removed

—

Mar 20, 1999

Listed

$159,900

$190/sq ft

MLS PIN #50319353

May 30, 1996

Sold

$110,000

$131/sq ft

Mar 19, 1996

Listing Removed

—

Mar 3, 1996

Listed

$118,000

$140/sq ft

Public Records

Jan 14, 1991

Sold

$126,000

$150/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$4,087 (+0.9%)

$382,000

2022

$4,049 (−2.1%)

$344,300

2021

$4,135 (+3.6%)

$326,100

2020

$3,993 (−1.1%)

$316,400

2019

$4,036 (−1.8%)

$306,200

2018

$4,109 (+2.9%)

$290,200

2017

$3,992 (+2.6%)

$277,000

2016

$3,892 (+23.4%)

$253,200

2014

$3,155 (−1.6%)

$202,500

2013

$3,206 (+2.9%)

$215,000

2012

$3,115 (−9.9%)

$215,000

2011

$3,458 (−3.7%)

$250,600

2010

$3,590 (+34.8%)

$282,700

2009

$2,664

$267,200

Tax history for 3 Seal Hbr #434

Year

Property tax

Land + Additions

Assessment*

2023

$4,087 (+0.9%)

$382,000

2022

$4,049 (−2.1%)

$344,300

2021

$4,135 (+3.6%)

$326,100

2020

$3,993 (−1.1%)

$316,400

2019

$4,036 (−1.8%)

$306,200

2018

$4,109 (+2.9%)

$290,200

2017

$3,992 (+2.6%)

$277,000

2016

$3,892 (+23.4%)

$253,200

2014

$3,155 (−1.6%)

$202,500

2013

$3,206 (+2.9%)

$215,000

2012

$3,115 (−9.9%)

$215,000

2011

$3,458 (−3.7%)

$250,600

2010

$3,590 (+34.8%)

$282,700

2009

$2,664

$267,200

*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

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

1989

Sq. Ft.

840

Year built

1987

Style

Condo/Co-op

County

APN

1425349

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on May 3, 2026.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 1
# of Covered Spaces: 1
AttachedGarageYN: Yes
Parking Features: Attached, Under, Garage Door Opener, Deeded, Off Street, Common, Guest, Paved, Exclusive Parking

Interior

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

Basement Information
Basement: Y

Laundry Information
Laundry Features: Common Area, In Building, In Unit, Electric Dryer Hookup

Interior Features
# of Rooms (Total): 2
Door Features: Insulated Doors
Window Features: Insulated Windows, Storm Window(s)
Flooring: Wood, Tile, Hardwood

Exterior

Building Information
Building Name: Seal Harbor
Building Area (Total): 840
Construction Materials: Brick
StructureType: High-Rise
Stories (Total): 10
Year Built Source: Public Records
Year Built Details: Actual
Lead Paint: None

Exterior Features
Fencing: Security
Roof: Rubber
Patio And Porch Features: Deck, Deck - Roof, Deck - Composite, Deck - Access Rights
Exterior Features: Deck, Deck - Roof, Deck - Composite, Deck - Access Rights, Balcony, Hot Tub/Spa, Garden, Gazebo, Outdoor Shower, Professional Landscaping, Sprinkler System, Tennis Court(s)

Pool Information
Has Spa
Pool Features: Association, In Ground, Indoor, Heated
Spa Features: Hot Tub/Spa

Property Information
Accessibility Features: Accessible Entrance
PropertySubType: Condominium
Property AttachedYN: Yes
Common Walls: 2+ Common Walls
Entry Level: 4
Entry Location: Unit Placement(Upper)
Security Features: Intercom, TV Monitor, Doorman, Security Guard, Security Gate, Concierge
Other Structures: Gazebo
Has Waterview
Bay, Harbor, Ocean, Private

Lot Information
WaterfrontYN: Yes

Financial

Tax Information
Tax Annual Amount: $4,087.40
Tax Year: 2023

Utilities

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

Heating & Cooling
Has Heating
Has Cooling
Heating: Central, Forced Air, Heat Pump, Electric, Individual, Unit Control
Cooling: Central Air, Heat Pump, Individual, Unit Control

Location

HOA Information
Association Fee: $558
Association Fee Frequency: Monthly
Association Fee Includes: Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash, Reserve Funds
Association Amenities: Pool, Laundry, Elevator(s), Tennis Court(s), Park, Recreation Facilities, Fitness Center, Sauna/Steam, Clubroom, Trail(s), Beach Rights, Storage, Garden Area, Clubhouse

Location Information
Directions: Left on Spitbrook, right on Daniel Webster
UnparsedAddress: 3 Seal Harbor # 434, Winthrop MA 02152

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Golf, Medical Facility, Conservation Area, Marina, Public School, T-Station
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 840
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1987
Year Renovated: 1989
County: —
APN: 1425349

Home facts updated by county records on May 3, 2026

Other

Miscellaneous Information
Heat Zones: 2

Listing Information
StandardStatus: Closed

Around this home

Schools

K - 12
Preschool & daycare

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

93/ 100

Exceptional sunlight

Sunscore

This home ranks in the top 3% for direct sun exposure in Winthrop. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

11.5 hrs

5.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$462,000 – $559,000

Reach more buyers when you sell with Redfin. Save up to $4,860 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$499,000

2 beds1 bath965 sq ft

10 Franklin Ave #200, Revere, MA 02151

Modern kitchen • Ample cabinetry • Granite countertops

3D WALKTHROUGH

$465,000

2 beds2 baths903 sq ft

34 Underhill St #4, Winthrop, MA 02152

White shaker kitchen • Quartz countertops • Gold hardware

OPEN TODAY, 12PM TO 1PM

$570,000

3 beds1 bath905 sq ft

863 Saratoga St #3, East Boston, MA 02128

Renovated • Natural light • Modern finishes

3D WALKTHROUGH

$749,974

5 beds2 baths1,568 sq ft

1203 Bennington St, East Boston, MA 02128

Patio yard space • Central ac • Transit convenience

$339,999

2 beds1 bath772 sq ft

800 Governors Dr #6, Winthrop, MA 02152

Open floor plan • Renovated kitchen • Granite countertops

$449,900

2 beds1 bath805 sq ft

43 Sagamore Ave #1, Winthrop, MA 02152

One-level living • First floor • Open-concept layout

New listings for sale in 02152

FOR SALE BY OWNER

$675,000

3 beds1 bath1,198 sq ft

25 North Ave, Winthrop, MA 02152

Enclosed porch • Oak cabinet kitchen • Partial basement

OPEN TODAY, 11AM TO 12:30PM

$699,000

3 beds1.5 baths2,053 sq ft

65 Sunnyside Ave, Winthrop, MA 02152

Original trim work • Bright living room • Fireplace

OPEN TODAY, 12PM TO 1:30PM

$730,000

3 beds1.5 baths1,406 sq ft

9 Lincoln St, Winthrop, MA 02152

Functional peninsula • Fireplace • Hardwood flooring

$835,000

6 beds3 baths2,424 sq ft

11-15 Sturgis St, Winthrop, MA 02152

Two family duplex • Steps to the ocean • 3,290 sq ft lot

$365,000

2 beds1 bath782 sq ft

200 Governors Dr #19, Winthrop, MA 02152

Private balcony • Functional layout • Outdoor enjoyment

OPEN TODAY, 12PM TO 1:30PM

$865,000

2 beds2.5 baths1,806 sq ft

1001 Shirley St #2, Winthrop, MA 02152

Historic loft • Premium appliances • Private deck

OPEN TODAY, 11AM TO 12:30PM

$649,900

3 beds2 baths1,515 sq ft

19 Beal St, Winthrop, MA 02152

Enclosed front porch • Oak cabinetry • Gas range

OPEN TODAY, 11AM TO 12:30PM

$869,000

3 beds2 baths1,925 sq ft

115 Read St #1, Winthrop, MA 02152

New construction • Electric fireplaces • Private entrance

OPEN TODAY, 11AM TO 12:30PM

$889,000

3 beds2 baths2,916 sq ft

115 Read St #2, Winthrop, MA 02152

New construction • Electric fireplaces • Private entrance

Home values near 3 Seal Hbr #434

Data from public records.

Address	Redfin Estimate
3 Seal Harbor Road #134, Winthrop, MA 1 Beds \| 1 Baths \| 897 Sq. Ft.	$456,973
3 Seal Harbor Road #237, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$653,080
3 Seal Harbor Road #345, Winthrop, MA 2 Beds \| 2 Baths \| 1310 Sq. Ft.	$608,173
3 Seal Harbor Road #535, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$581,663
3 Seal Harbor Road #546, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$590,557
3 Seal Harbor Road #646, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$566,757
3 Seal Harbor Road #743, Winthrop, MA 1 Beds \| 1 Baths \| 838 Sq. Ft.	$480,887

Address	Redfin Estimate
3 Seal Harbor Road #232, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$619,687
3 Seal Harbor Road #243, Winthrop, MA 1 Beds \| 1 Baths \| 838 Sq. Ft.	$448,793
3 Seal Harbor Road #444, Winthrop, MA 2 Beds \| 2 Baths \| 1422 Sq. Ft.	$638,738
3 Seal Harbor Road #536, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$926,223
3 Seal Harbor Road #547, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$581,998
3 Seal Harbor Road #647, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$613,938
3 Seal Harbor Road #833, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$613,428

Address	Redfin Estimate
3 Seal Harbor Road #236, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$812,081
3 Seal Harbor Road #248, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$660,607
3 Seal Harbor Road #448, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$577,401
3 Seal Harbor Road #543, Winthrop, MA 1 Beds \| 1 Baths \| 838 Sq. Ft.	$488,197
3 Seal Harbor Road #631, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$530,012
3 Seal Harbor Road #734, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$502,973
3 Seal Harbor Road #841, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$428,113

Property information provided by MLS PIN when last listed in 2025. This data may not match . Learn more.

More real estate resources

Neighborhoods
Minor Civil Divisions
Cities
Zip Codes
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.

Redfin Brokerage Licenses

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